Compliance Monitoring Report Industries (2009) 1 ... · PDF filePage 1 of 93 1 Compliance...

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Compliance Monitoring Report – Industries (2009)

1. Introduction ........................................................................................................................... 7

2. General observations ............................................................................................................. 7

3. Industries specific observation(s) ......................................................................................... 8

3.1. Cement industries........................................................................................................................ 8 3.2. Ferro Alloys and Carbide ............................................................................................................. 9 3.3. Powdering Plants ....................................................................................................................... 10 3.4. Food and Drinks Industries ........................................................................................................ 10 3.5. Steel Industries .......................................................................................................................... 11 3.6. Wood Industries ........................................................................................................................ 12

4. Penden Cement Authority Limited (PCAL) ..................................................................... 14

4.1. Brief background ....................................................................................................................... 14 4.2. Raw materials, annual consumption and their source .............................................................. 14 4.3. Potential environmental concerns ............................................................................................ 15 4.4. Positive impacts, if any .............................................................................................................. 15 4.5. Pollution from the production process ..................................................................................... 15 4.6. Pollutants monitored and findings ............................................................................................ 17 4.7. Observation against the terms and conditions of the environmental clearance ...................... 18 4.8. Recommendations ..................................................................................................................... 19

5. Lhaki Cement Company Pvt. Ltd ...................................................................................... 21

5.1. Brief background ....................................................................................................................... 21 5.2. Raw materials, annual consumption and their sources ............................................................ 21 5.3. Potential environmental concerns ............................................................................................ 22 5.4. Positive impacts, if any .............................................................................................................. 22 5.5. Pollution from production process ............................................................................................ 22 5.6. Pollutants monitored and findings ............................................................................................ 23 5.7. Observation against the terms and conditions of environmental clearance ............................ 23 5.8. Recommendations ..................................................................................................................... 23

6. Yangzom Cement Industry Pvt. Ltd .................................................................................. 24

6.1. Brief background ....................................................................................................................... 24 6.2. Raw materials, annual consumption and their sources ............................................................ 24 6.3. Potential environmental concerns ............................................................................................ 25 6.4. Positive impacts, if any .............................................................................................................. 25 6.5. Pollution from production process ............................................................................................ 25 6.6. Pollutants monitored and finding.............................................................................................. 26 6.7. Observation against the terms and condition of environmental clearance ............................. 26 6.8. Recommendations ..................................................................................................................... 27

7. Druk Cement Company Pvt. Ltd ....................................................................................... 28

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7.1. Brief background ....................................................................................................................... 28 7.2. Raw materials, annual consumption and their sources ............................................................ 28 7.3. Potential environmental concerns ............................................................................................ 29 7.4. Positive impacts, if any .............................................................................................................. 29 7.5. Pollution from the production process ..................................................................................... 29 7.6. Pollutants monitored and findings ............................................................................................ 30 7.7. Observation against the terms and conditions of environmental clearance ............................ 31 7.8. Recommendations ..................................................................................................................... 31

8. Bhutan Carbide and Chemicals Limited ........................................................................... 33

8.1. Brief Background ....................................................................................................................... 33 8.2. Raw Material and their sources ................................................................................................. 33 8.3. Environmental Concerns ........................................................................................................... 34 8.4. Positive impacts, if any .............................................................................................................. 34 8.5. Pollution from Production Process ............................................................................................ 34 8.6. Pollutants monitored and findings ............................................................................................ 35 8.7. Observation against the terms and conditions of the environmental clearance ...................... 35 8.8. Recommendations ..................................................................................................................... 35

9. Bhutan Ferro Alloys Limited ............................................................................................. 36

9.1. Background information ............................................................................................................ 36 9.2. Raw materials, consumption and their sources ........................................................................ 36 9.3. Environmental concerns ............................................................................................................ 37 9.4. Positive impacts, if any .............................................................................................................. 37 9.5. Pollution from production process ............................................................................................ 37 9.6. Pollutants monitored and findings ............................................................................................ 38 9.7. Observation against the terms and condition of environmental clearance ............................. 39 9.8. Recommendations ..................................................................................................................... 39

10. Bhutan Ferro Industries Limited ....................................................................................... 40

10.1. Background information ............................................................................................................ 40 10.2. Raw material, its consumption and sources.............................................................................. 40 10.3. Environmental concerns ............................................................................................................ 41 10.4. Positive impacts, if any .............................................................................................................. 41 10.5. Pollution form the production process ..................................................................................... 41 10.6. Pollutants monitored and findings ............................................................................................ 42 10.7. Observations against the terms and condition of environmental clearance ............................ 43 10.8. Recommendations ..................................................................................................................... 43

11. Druk Ferro Alloy Limited ................................................................................................... 45

11.1. Background information ............................................................................................................ 45 11.2. Raw material, its consumption and sources.............................................................................. 45 11.3. Environmental concerns ............................................................................................................ 46 11.4. Positive impacts, if any .............................................................................................................. 46 11.5. Pollution from the production process ..................................................................................... 46 11.6. Pollutants monitored and findings ............................................................................................ 47 11.7. Observations against the terms and condition of environmental clearance: ........................... 47 11.8. Recommendations ..................................................................................................................... 47

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12. Druk Wang Alloys Limited ................................................................................................. 48

12.1. Brief background ....................................................................................................................... 48 12.2. Raw materials, its consumption and sources ............................................................................ 48 12.3. Environmental concerns ............................................................................................................ 49 12.4. Positive impacts, if any .............................................................................................................. 49 12.5. Pollution from the production process ..................................................................................... 49 12.6. Pollutants monitored and findings ............................................................................................ 50 12.7. Observations against the terms and condition of environmental clearance ............................ 50 12.8. Recommendations ..................................................................................................................... 50

13. Ugen Ferro Alloys Limited ................................................................................................. 51

13.1. Brief background ....................................................................................................................... 51 13.2. Raw material, its consumption and source ............................................................................... 51 13.3. Environmental concerns ............................................................................................................ 52 13.4. Positive impacts, if any .............................................................................................................. 52 13.5. Pollution from the production process ..................................................................................... 52 13.6. Pollutants monitored and findings ............................................................................................ 53 13.7. Observations against the terms and condition of environmental clearance ............................ 53 13.8. Recommendations ..................................................................................................................... 53

14. Army Welfare Project ......................................................................................................... 55

14.1. Brief background ....................................................................................................................... 55 14.2. Raw materials, annual consumption and their sources ............................................................ 56 14.3. Potential environmental concerns ............................................................................................ 56 14.4. Positive impacts, if any .............................................................................................................. 56 14.5. Pollution from production process ............................................................................................ 56 14.6. Pollutants monitored and findings ............................................................................................ 57 14.7. Observation against the terms and condition of environmental clearance ............................. 57 14.8. Recommendations ..................................................................................................................... 57

15. Bhutan Fruits Productions Pvt. Ltd. ................................................................................. 58

15.1. Brief background ....................................................................................................................... 58 15.2. Raw materials, annual consumption and their sources ............................................................ 58 15.3. Environmental concerns ............................................................................................................ 59 15.4. Positive impacts, if any .............................................................................................................. 59 15.5. Pollution from production process ............................................................................................ 59 15.6. Pollutants monitored and findings ............................................................................................ 60 15.7. Observation against the terms and condition of environmental clearances: ........................... 60 15.8. Recommendations ..................................................................................................................... 61

16. Dolomite Crushing Unit, Jigme Industries Pvt Ltd ......................................................... 63

16.1. Brief background ....................................................................................................................... 63 16.2. Raw materials, annual consumptions and their sources ........................................................... 63 16.3. Potential environmental concerns ............................................................................................ 64 16.4. Positive impacts, if any .............................................................................................................. 64 16.5. Pollution from the Production Process ..................................................................................... 64 16.6. Pollutants monitored and findings ............................................................................................ 65

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16.7. Observations against the environmental clearance .................................................................. 65 16.8. Recommendations ..................................................................................................................... 66

17. Dolomite Powdering Unit of Jigme Industries Pvt. Ltd ................................................... 67

17.1. Brief background ....................................................................................................................... 67 17.2. Raw materials, annual consumptions and their sources ........................................................... 67 17.3. Potential environmental concerns ............................................................................................ 68 17.4. Positive impacts, if any .............................................................................................................. 68 17.5. Pollution from the production process ..................................................................................... 68 17.6. Possible pollutants monitored and findings .............................................................................. 69 17.7. Observations against the terms and conditions of environmental clearance .......................... 69 17.8. Recommendations ..................................................................................................................... 70

18. Pagli Stone Quarry .............................................................................................................. 71

18.1. Brief background ....................................................................................................................... 71 18.2. Raw materials, annual consumptions and their sources ........................................................... 71 18.3. Potential environmental concerns ............................................................................................ 71 18.4. Positive impacts, if any .............................................................................................................. 72 18.5. Pollution from the production process ..................................................................................... 72 18.6. Possible pollutants monitored and findings .............................................................................. 72 18.7. Observation against the terms and conditions of the environmental clearance ...................... 73 18.8. Recommendations ..................................................................................................................... 73

19. Chundu Dolomite Powdering Plant ................................................................................... 74

19.1. Brief background ....................................................................................................................... 74 19.2. Raw materials, annual consumptions and their sources ........................................................... 74 19.3. Potential environmental concerns ............................................................................................ 75 19.4. Positive impacts, if any .............................................................................................................. 75 19.5. Pollution from the production process ..................................................................................... 75 19.6. Possible pollutants monitored and findings .............................................................................. 76 19.7. Observations against the terms and conditions of environmental clearance .......................... 76 19.8. Recommendations ..................................................................................................................... 77

20. Kenpa Pvt. Ltd ..................................................................................................................... 78

20.1. Brief background ....................................................................................................................... 78 20.2. Raw materials, annual consumptions and their sources ........................................................... 78 20.3. Potential environmental concerns ............................................................................................ 79 20.4. Positive impacts, if any .............................................................................................................. 79 20.5. Pollution from the production process ..................................................................................... 79 20.6. Possible pollutants monitored and findings .............................................................................. 80 20.7. Observation against the terms and condition of the environmental clearance ....................... 80 20.8. Recommendations ..................................................................................................................... 81

21. Damchen Dolomite and Mining Industries ....................................................................... 82

21.1. Brief background ....................................................................................................................... 82 21.2. Raw Materials, annual consumptions and their sources .......................................................... 83 21.3. Potential environmental concerns ............................................................................................ 83 21.4. Positive impacts, if any .............................................................................................................. 83

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21.5. Pollution from the production process ..................................................................................... 83 21.6. Possible pollutants monitored and findings .............................................................................. 84 21.7. Observations against the terms and conditions of the environmental clearance .................... 84 21.8. Recommendations ..................................................................................................................... 85

22. Lhachhen Mineral Industry ............................................................................................... 86

22.1. Brief background ....................................................................................................................... 86 22.2. Raw materials, annual consumptions and their sources ........................................................... 86 22.3. Potential environmental concerns ............................................................................................ 87 22.4. Positive impacts, if any .............................................................................................................. 87 22.5. Pollution from the production process ..................................................................................... 87 22.6. Possible pollutants monitored and findings .............................................................................. 87 22.7. Observation against the terms and conditions of environmental clearance ............................ 88 22.8. Recommendations ..................................................................................................................... 88

23. Nob Minerals ........................................................................................................................ 90

23.1. Brief background ....................................................................................................................... 90 23.2. Raw materials, annual consumptions and their sources ........................................................... 90 23.3. Potential environmental concerns ............................................................................................ 91 23.4. Positive impacts, if any .............................................................................................................. 91 23.5. Pollution from the production process ..................................................................................... 91 23.6. Possible Pollutants Monitored and Findings ............................................................................. 92 23.7. Observations against the terms and conditions of environmental clearance .......................... 92 23.8. Recommendations ..................................................................................................................... 93

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Executive Summary

The National Environment Commission Secretariat (NECS) conducted compliance monitoring of

the industries in Chukha and Samtse Dzongkhags. During the monitoring, …..industries were

monitored for general compliance and point source emission level. The monitoring was mainly

based on compliance by the industries as required under the terms and conditions of

environment clearance.

Some of notable general non-compliances are; lack of Self monitoring initiatives, no

Environmental Budgetary provisions, inadequate Personal Protective Equipments(PPE)

provision, improper Waste Management system, and leakages during operation of Pollution

Control Equipment and poor General housekeeping. However, industries are showing gradual

improvement in controlling fugitive emission and contribute towards employment generation.

The point source emission, suspended particulate matter (SPM) emission for industries with

stacks were monitored. It was observed that all cement industries failed to meet the emission

standard while one of six Ferro Alloys and others fails to meet the same. The emission level of

two of four steel industries exceeds the standards while one of three wood industries emits

emission above the prescribed limit. The failure to meet the emission standards from the point

source owes to inadequate or inappropriate pollution control equipment. Significant amount of

fugitive emissions are also generated, especially in powdering plants.

In general, the team conducted pollution audit for the industries and the recommendations were

submitted for improving their environmental performance.

Further, as per the instruction of the 27th

meeting of NEC, the Secretariat in coordination with

the Environment Unit of the Ministry of Economic Affairs is continuously monitoring the

environmental compliance of the industries in Pasakha Industrial Estate.

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1. Introduction The National Environment Commission Secretariat (NECS) in coordination with Ministry of

Economic Affairs (MoEA) conducted several rounds of meetings with industries between 2005

and 2007 on formulation of emission standards. The emission standard was approved by the

government in September 2007. A final consultation was held with industries, where the

deadline to enforce emission standards was discussed and agreed as July 1, 2008. However, the

enforcement of the emission standards was initiated from November 2008.

The compliance monitoring was also based on the provisions of National Environment

Protection Act (NEPA) 2007, Environment Assessment Act (EA Act) 2000 and its Regulation

for the Environmental Clearance of Projects 2002. This report covers industries under Samtse

and Chukha Dzongkhags (attached lists of industries). The monitoring was conducted from

November 2008 to March 2009

In addition to the above monitoring, as per the instruction of the 27th

meeting of NEC, the

Secretariat in coordination with the Environment Unit, Ministry of Economic Affairs is

continuously monitoring the environmental compliance of the industries in Pasakha Industrial

Estate.

2. General observations

Generally, industries have shown gradual improvement of environmental performance compared

to the past records. The overall improvement includes:

Fugitive emission control measures: Most plants have installed enclosure for material

transfer lines and point, to reduce fugitive emission

National Employment Generation: The data shows that, on average, more than 60% of

their employees are national

Despite some improvement shown by the industries, there are areas for further improvement as

shown below:

Self monitoring initiatives. Although the regulation requires industries to carry out self

monitoring of point source emission and work zone environment, no initiatives are taken

by industries

Environmental Budget: industries are required to maintain budget for environmental

activities. However, no such record exists with most industries

Personal Protective Equipments (PPE): The implementation of PPE is limited to

provision of helmets and breathing mask only. However, these are also not used by the

workers

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General Housekeeping: The general housekeeping needs to be improved. For instance,

drainage within the area needs to be cleaned

Waste Management: some of the prominent wastes generated by industries are slag

from steel industries and marble sludge. Till date, there is no proper management of

these wastes

Operation of Pollution Control Equipment: lot of fugitive emission is generated from

the leakages mainly due to improper maintenance

The above noted non compliance observations are simple and can be implemented. It doesn’t

require much resource and manpower. The benefit of its implementation includes improvement

of overall economic benefits such as resource recovery, improved efficiency, and understanding

the overall status of environmental performance of the company, which is emerging as an

important marketing tool.

3. Industries specific observation(s)

Detail inspections of the pollution sources along the production line for various industries were

conducted for following groups of industries, 1) Cement industries, 2) Ferro Alloys and Carbide,

3) Food and Drinks Industries, and 4) Powdering Plants. In addition, point source emission

monitoring was also conducted for steel and wood industries. Following are the observation for

specific groups of industries.

3.1. Cement industries

Total of four cement industries were monitored in Pasakha, Gomtu and Samtse. Air and noise

pollution are the major environmental concerns for these industries. Air pollution is generated as

fugitive emission from improper handling of the raw materials along the production line, and

point source emission from the stacks. Noise is generated from operation of plant equipment.

Cement industries consist of many units namely; Coal Mill, Raw Mill, Pyroprocessing Unit and

Cement Mill. The Cement Mills can be operated independently by using procured Clinker.

Stacks were monitored for point source emission level. The Penden Cement Authority Limited

(PCAL) has 28 stacks, of which only Electro Static Precipitators (ESP) stack was monitored,

because of lack of stack monitoring provisions for rest of the stacks. Similarly, two Vertical

Shaft Kiln (VSK) stacks and one Raw Mill stack were monitored for Druk Cement Company

Pvt. Limited, while all three stacks were monitored for Yangzom Cement Industry. The point

source emission for Lhaki Cement Private Limited was not monitored because the plant was

under augmentation. The point source emission result shows that only raw mill stack of Druk

Cement plant meets the emission standard. The graph below shows the emission level from the

stack monitored:

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Figure Cement Industries

It may be noted that the emission from the VSK of Druk and Yangzom Cement are directly let

out to the environment without any pollution control system. The existing pollution control

system of ESP in PCAL and Bag filter in Yangzom cement are proving to be inefficient in

controlling the point source emission. Therefore, the pollution load of the cement industries is

extremely high, much above the emission standards.

Lhaki cement, as a part of augmentation is changing the technology from VSK to Rotatory Kiln

(RK).

3.2. Ferro Alloys and Carbide

Six industries, including Bhutan Carbide and Chemical Plant in Pasakha were monitored under

this category. Air and noise pollution are observed as the major environmental concerns. Air

pollution is generated as the fugitive emission from improper handling of the raw materials along

the production line, open furnace gates, tapping process and point source emission from the

stacks. It is also contributed by improper collection system of micro silica dust. Noise is

generated from operation of plant machineries.

Industrial stacks were monitored for its point source emission. Of six industrial stacks monitored,

one stack fail to meet SPM emission standard.

671

34642842

34

1115

4517

0500

100015002000250030003500400045005000

Penden ESP VSK 1 VSK 2 Raw Mill VSK Raw Mill

Penden Cement

Druk Cement Yangzom Cement

SP

M C

on

c (

mg

/N

m3

)

Industrial Stacks

Point source emission

Observed conc (mg/Nm3)

Stand (150 mg/Nm3)

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Figure Ferro Alloys and Carbide

The pollution level of lime kiln of Bhutan Carbide and Chemical Limited (BCCL) were above

the emission standard. The SPM emission level from the lime kiln unit of the BCCL has

repeatedly exceeded the emission level. It is because the pollution control equipment is not

adequate.

3.3. Powdering Plants

A total of seven industries were monitored under this category in Gomtu, Pugli and Tashijong

area in Samtse. This category consists of dolomite and talc powdering units. The major

environmental concerns associated with these industries are air and noise pollution.

Fugitive emission is the major air pollution, occurring due to improper handling of raw materials

along the production line. The conveyor belts are not enclosed, transfer points are open, and

significant amount of fugitive emission occurs due to manual handling of product packaging and

its transfer to the storage area.

The point source of SPM emission monitoring was not conducted, as there is no stack emission.

In future, there is an urgent need to conduct detail technical study on the fugitive emission level

within the work zone.

3.4. Food and Drinks Industries

Only two Food and Drinks industries were monitored in Samtse. Others, such as Vanaspati and

cold drink plants were not monitored as they were not under operation. The major environmental

concerns associated with these industries are air pollution from the boiler and effluent discharge

from the production process. Some amount of spent materials such as fruit peels is generated as

solid waste.

0

50

100

150

200

250

GCP GCP GCP GCP GCP Lime Kiln

DWAL DFAL UFAL BFIL BFAL BCCL

SPM

Co

nc

(mg/

Nm

3)

Industrial Stacks

Point source emissionObserved Conc (mg/Nm3)

Stand (150 mg/Nm3)

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The industries were not monitored for its point source emission because, the Bhutan Fruits were

under the technological up-gradation from coal fired to High Speed Diesel (HSD) fired boiler,

where the emission scenario is expected to change after installation of new boiler. The food and

drinks industries have shown improvement in overall house keeping of the plant as well.

3.5. Steel Industries

Bhutan Concast Pvt Ltd, KK Steel and Druk Iron and Steel Industries were monitored for their

point source emission while Bhutan Steel Industries is monitored for both the point source

emission and overall environmental performance. The overall environmental performance for

other steel industries, including Lhaki Steel will be monitored soon. It was observed that slag

generation and air pollution are noted as the main environmental concern from operation of the

Bhutan steel industries. Slags are generated as by-product from the process, and have been left

stockpiled within the industrial compound. Air pollution is generated both as the fugitive and

point source from improper handling of the raw materials and charging process. It may be

mentioned that all the steel industries in their initial project profile and application have assured

proper management of slag, which they have failed to comply.

The point source emission was monitored for 4 steel industries, of which two industries failed to

meet the emission standards.

Figure 1 Steel Industries

The point source emission from the Rolling mill and Induction furnace I of the Druk Iron and

Steel at Rabtengang, and Induction furnace of the KK Steel failed to meet the required standard.

0

100

200

300

400

500

600

Furnace GCP Furnace GCP Rolling Mill Furnace GCP Furnace GCP

Bhutan Concast

Bhutan Steel Indstry. Ltd

Druk Iron & Steel KK Steel

SPM

Co

nc

(mg/

Nm

3)

Industrial Stacks


Observed Conc (mg/Nm3)

Stand (150mg/Nm3)

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In the past sampling, the SPM emission of the Druk Iron and Steel have managed to meet the

standard.

Emission for the Lhaki steel could not be monitored as the plant was shut down during the period

of monitoring, due to economic recession.

3.6. Wood Industries

Three industries were monitored in Gedu and Phuentsholing area for their point source emission.

The overall environmental performance could not be covered during the monitoring.

Point source emission occurs from boilers, where waste wood is used as fuel. Of three wood

industries monitored for the SPM point source emission level, Bhutan Board Products Limited in

Gedu, failed to meet the emission standard.

Figure 2 Wood Industries

927

5.81

115

0

100

200

300

400

500

600

700

800

900

1000

Boiler Boiler Boiler

Bhutan Board Products Limited

Bhutan Green Wood Industry

Bhutan Wood Panel Industry

SPM

Con

c (m

g/N

m3)

Industrial Stacks


Observed Conc (mg/N

m3)

Stand (150mg/Nm3)

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4. Penden Cement Authority Limited (PCAL)

INDUSTRY AT A GLANCE

Promoter

Penden Cement

Authority Ltd

Type of Industry

Cement

Location

Gomtu, Samtse

Products

Ordinary Portland

Cement (OPC)

PSC (Portland Slag

Cement)

PPC (Portland Pozzalona

cement)

Year of

Establishment 1974 Plant Capacity

Commercial

Production 1981

Actual Production

(in 2008)

OPC 33: 635Metric Tonnes

(MT)

OPC 43:45,522 MT

PPC:1,77,755 MT

PSC:1,19660 MT

Clinker:281,615 MT

Date of Monitoring March 21-22, 2009

4.1. Brief background

Penden Cement plant manufactures three types of cements namely Ordinary Portland Cement

(OPC) PSC (Portland Slag Cement) PPC (Portland Pozzalona cement). During the time of

monitoring the C- line of pyroprocess was broken down. The team was informed that the daily

clinker production capacity was reduced from 1000 tonnes per day (tpd) to just 260 tpd.

4.2. Raw materials, annual consumption and their source

The following table shows the Raw Material types and its annual consumption and sources:

Sl. No Particulars Quantity (MT) Source

1 Limestones 2,83,408 Pugli Mines

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2 Limestones 1,38,510 Uttarey Mines

3 Calc Tufa 11,750 Kalapani Mines

4 Sandstone 8,850 Pugli river bed

5 Iron ore 157 Kalikhola Mines

6 Coal 42,751 Reshore Mines

7 Coal 10,381 India

8 Fly ash 40,143 India

9 Gypsum 11,152 Khothakpa

Mines

10 Slag 52,135 India

4.3. Potential environmental concerns

Dust emission is the major environmental concern from operation of the cement plant. While

some point source pollution control measures were implemented by the management, the

fugitive emission from the materials transfer points, and materials handling such as gantry

stocking, open feeding and leakages along transfer line are contributing to dust generation. The

installation of mobile crushing unit between Gomtu town and the plant has further aggravated the

dust pollution in the area. The open stocking of raw materials such as coal and slag has also

contributed generation of dusts emission in the area. Noise is also generated from the operation

of the plant machineries.

4.4. Positive impacts, if any

The plant has employed total work force of 566 people of which 531 of them are national.

Furthermore, the company has employed an addition of 144 national casual workers in the plant.

4.5. Pollution from the production process

The table below shows that pollution sources, control measures and observations.

Sl.

No

Source of Pollution Control Measures Observations

1 Fugitive emission from Whole structure is The enclosure has controlled the

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Stacker and reclaimer enclosed fugitive emission.

2 Fugitive emission at

Raw material Gantry

(handling)

No control measures Fugitive emission is generated

3 Point source emission

Raw mill (Raw mill 1)

grinding

Installed control

measures

Both ESP and bag filters are used.

Stack Monitoring was carried out

for the stacks of both the installed

control measures. The result may

have to be reconfirmed after

management has put the porthole as

per the specification issued by NEC.

4 Point source from

Blending Silo

Control measures

installed.

Bag house has been installed.

However, there is no provision to

monitor the emission level


from the Pyroprocessing

Control measures

installed

The emission from this pyroprocess

is treated by ESP.

6 Fugitive emission from

Clinker Discharge

No control measures Dust is generated from transfer

point. Water spray is installed, but it

is hardly used.


from Clinker Silo

Installed control

measures





the Clinker Gantry

No control measures Dust is generated while dropping

clinker into the Gantry and

transferring hot clinkers by EOT

crane.


conveying materials

(Gypsum, Clinker, Slag

etc) from the clinker silo

to the cement hoppers

No control measures Gypsum is fed manually at the

hoppers. The feeding process

generates dust. The conveyor belts

are not enclosed

10 Point source from

Cement Mills

Installed control

measures




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from Cement Silo

Installed control

measures




12 Point source and

fugitive emission from

packing

Installed control

measures for packing

machines, but no

control measures for

fugitive emissions

The team was informed that

monitoring provisions are provided,

however, the plant was under

maintenance during the monitoring

period. Hence sampling was not

carried out.


Coal feeding

No control measures Coal dust is generated from coal

feeding hoppers as well as from the

stock yard.


from the coal mill

Installed control

measures




15 Wastewater from

cooling and vehicle

washing

No control measures Wastewaters generated from

washing of vehicles are directly

discharged into the surrounding

environment. Further part of the

water used for cooling the

equipment is also let directly into

surrounding environment.

4.6. Pollutants monitored and findings

Stack sampling was carried out for SPM from the point source. The graph below shows that the

emission from the ESP exceeds the emission standards.

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Figure 3 PCAL ESP Stack

Since there is fugitive emission in the work place, there is a need to sample and analyse the

workplace emission level.

4.7. Observation against the terms and conditions of the environmental

clearance

Raw materials, such as coal and slag are not stored in the closed yard

There are leakages along materials transfer line

As per the ESP stack emission record maintained with company, it has failed to meet the

required emission standard. Following is the record:

Sl.

No

Month Results (mg/Nm3)

1 October, 2008 290.6

2 November, 2008 282.2

3 December, 2008 188.7

4 January, 2009 223.3

5 Feb, 2009 207

No proper record for the water consumption

No separate energy meter

0

100

200

300

400

500

600

700

800

PCAL, ESP Emission Standard

SP

M (

mg

/N

m3

)

Emission Stack

SPM Emission

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Monitoring provisions are not provided for all the stacks

Poor implementation of OHS

Factory floor is not clean

General housekeeping is poor

Poor sanitation within the plant

4.8. Recommendations

Both observations and recommendations are discussed with the management. The management

has agreed to implement as follows.

Sl.

No

Activity Description Implementation

1 Fugitive emission

control

The management shall implement the

control measures for fugitive emission

from the process and other activities

(including leakages along the transfer

lines, gantries, feeding hoppers, and

transfer points)

The management shall

installed fugitive emission

control measures within

three months from date of

issue of this observations and

inform NEC accordingly

2 Water Management The management shall develop and

implement water management

strategies


inform the NEC within three

months from the date of

issue of this observation

3 Stack Monitoring

Provisions

The management shall ensure that all

stacks have facilities for monitring


submit the information to

NEC within three months

from the date of issue of this

observation

4 Fugitive emission

from the Dump

yard

The management has stocked the

Uttarey limestone in between Gomtu

town and plant which has contributed to

generation of dusts.

The management is

requested to provide the

explanation within April 10,

2009

5 Car wash in the

plant

Vehicle washing was observed at the

water re-circulation tank, where the

washed effluent are directly discharged

into the environment


immediately prohibit direct

discharge of effluent into the

environment without

treatmentbn002E

of 93 20

6 House keeping The general housekeeping of the plant

needs to be improved

The management shall note

that drainage needs to be

cleaned immediately

of 93 21

5. Lhaki Cement Company Pvt. Ltd


Promoter

lhaki Cement

Company Pvt. Ltd

Type of Industry Cement

Location Gomtu, Samtse Products Ordinary Portland

Cement (OPC)

Year of

Establishment

October 1992

Plant Capacity 43,000 MT

Commercial

Production January , 1993 Actual Production

11509.72 MT (Jan-

March 2009)



Lhaki Cement Plant has been under augmentation since October 2007 replacing VSK technology

with RK. The operation of VSK was suspended from November 2008 except cement mill. The

mill has been under operation with imported clinker from PCAL and India. However, during

time of monitoring the cement mill was not operational due non-availability of clinker. The up-

gradation of the plant is expected to be completed by May 2009.

5.2. Raw materials, annual consumption and their sources

The table below shows the raw materials consumption by the plant and its sources. The data is

only for the months of January-March 2009.

Sl.

No

Particulars Quantity (MT) Sources

1 Clinkers 11,157.77 PCAL and India

2 Gypsum 371.95 Khothakpa Mines

of 93 22


Dust is the major environmental concerns of the cement plants. The source of pollution are

mainly from cement mill, silo, materials feeding, open stocking of raw materials, leakages along

transfer line and movement of vehicles.


The plant has total work force strength of 277 people of which 209 of them are national.

5.5. Pollution from production process

The following table shows the pollution sources, control measures and observations.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Fugitive

emission within

the plant area

Limited control

measures

Water is sprayed only once in the

morning

2 Fugitive

emission from

feeding of

materials to the

hopper

No control

measures

Fugitive emission is generated while

feeding materials into ground hoppers

3 Point source

and Fugitive

emission from

the conveyor

belts

Installed

control

measures

Some portions of the conveyor belts are

underground whereas some are exposed.

There is a system which collects dust

from the underground conveyor belts

only. There are no provisions of stack

monitoring in the stack of the bag filters.

4 Point source

emission from

Cement Silo

Installed

control

measures

No monitoring provisions

5 Fugitive

emission from

packing

no control

measures

Fugitive emission is generated from this

unit.

of 93 23


Stack sampling was not carried out as there were no monitoring provisions. The sampling for

fugitive emission was also not conducted as the plant was under augmentation.

5.7. Observation against the terms and conditions of

environmental clearance

Clinker is not completely stored in the closed yard

Leakages along the material transfer line

No separate energy meter installed

Polythene bags are indiscriminately dumped within the plant site

Water is not sprayed as required

No record maintained for ambient and fugitive emission in the plant area

No record for water consumption


Both observation and recommendations are discussed with the management. The management

has agreed to implement it as follows.

Sl.

No


1 Environmental

Management Plan

The management shall submit the

environmental management plan

addressing the requirement under the

EC


submit the environmental

management plan by May

15, 2009

2 Polythene bag

littering

The management shall immediately

collect all garbage including polythene

bag within and around the factory

premises


implement it immeditely

3 Water Spray The management shall spray water for

atleast three times a day as per the

terms and condition of the EC


implement immediately

4 Environmental

Budget

The management shall maintain

separate record for the expenditure

related to envitronment.

To be submitted along with

the Environmental

Management Plan

of 93 24

6. Yangzom Cement Industry Pvt. Ltd


Promoter

Yangzom Cement

Industry Pvt. Ltd


Location

Tashijong, Samtse

Products

Portland Pozzolana

Cement (PPC)

Year of

Establishment October 1986 Plant Capacity 30 tpd

Commercial

Production Actual Production



Yangzom Cement plant manufactures Ordinary Portland Cement (OPC), using VSK technology

for clinker production. The plant has a installed capacity of 30 tpd.


The following table shows the annual raw material consumption and its sources.

Sl.

No

Particulars Quantity (MT) Source

1 Limestone 6,000 Chipuwa Mines

2 Coke breeze 1,200 India

3 Fly ash 200 India

4 Gypsum 115 Khothakpa Mines

5 Clay 600 Sukreti

of 93 25



some point source pollution control measures were implemented by the management at the raw

mill and cement mill, the fugitive emission from the materials transfer points, and materials

handling such as gantry stocking, open feeding and leakages along transfer line are contributing

to dust generation. The uncontrolled point source emission from the VSK chimney has further

aggravated dust pollution in the area. Noise is also generated from the operation of the plant

machineries.


The plant has employed total work force of 90 people (70 day workers) of which 11 of them are

national.


The table in next page shows the pollution source, control measures and observations

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Fugitive emission

from Raw material

feeding and

crushing

No control

measures


feeding the raw materials into the

hoppers. Fugitive emission is also

generated when raw materials are

crushed into required sizes

3 Point source

emission Raw mill

grinding

Installed

control

measures

There are two point source emissions

from the raw mill. One of them has a

vent at the top of the bag house, while

the other one is vented by passing

through the two chambers, installed for

settling the dusts.

4 Point source from

Blending Silo

Control

measures

installed

(Cyclone).

Point source emission is generated

5 Point source

emission from

VSK charging

Control

measures

installed

(Cyclone)

The material conveyed from the storage

silo to the VSK passes through cyclone

dusts separator. During the process,

point source emission is generated.

of 93 26

5 Point source

emission from the

VSK

Partial control

measures

installed

Point source emission is generated. Part

of the flue gas is trapped and treated

using water.

6 Fugitive emission

from clinker

discharge gate

control

measures

installed

Filter bags

6 Fugitive emission

from clinker

gantry

No control

measures


discharging clinkers into the gantry.

7 Point source

emission from

cement mill

control

measures

installed

Emission is generated

8 Wastewater No control

measures

Wastewater is generated while treating

the VSK flue gas

6.6. Pollutants monitored and finding

Stack sampling was carried out for SPM from the raw mill stack and the VSK stack. The graph

below shows that the emission from both sampled stacks exceeds emission standards.

6.7. Observation against the terms and condition of environmental

clearance

No monthly emissions record is maintained

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

VSK Raw Mill Standard

SPM

co

nc

(mg/

NM

3)

Stack emission

of 93 27

Poor house keeping within the plant area

No first aid kit available at plant

No signs posted in the plant area

Raw materials are not completely stocked within closed yard


Both observation and recommendations were discussed with the management. The management

has agreed to implement it as follows:

Sl.

No


1 Control point

source and fugitive

emission.

The management shall submit

comprehensive plan for controlling both

point source and fugitive emission


submit dust control plan by

June 30, 2009

2 Point source

emission from extra

raw mill stack

The management shall study the

feasibility of removing the extra stack


inform NEC accordingly

2 Dust Leakage along

the production line


rectify the problem


implement it immediately


observation

3 General

Observation

The management shall take serious note

of the general observation


implement with immediate

effect

4 Environmental

Budget


separate record of the expenditure

related to environmental activities

To be submitted along with

dust control Plan

of 93 28

7. Druk Cement Company Pvt. Ltd


Promoter

Druk Cement

Company Pvt. Ltd


Location

Balujhora,

Sampheling Gewog,

Chukha

Products Ordinary Portland

Cement (OPC)

Year of

Establishment 1991 Plant Capacity 43,000 MT

Commercial

Production Actual Production 30,000 MT

Date of Monitoring March 27, 2009


Druk Cement plant manufactures Ordinary Portland Cement (OPC), using VSK technology for

clinker production. During the time of monitoring, the plant was producing about 32 MT of

clinker for the period of 12 hours.


The following table shows the annual raw materials consumption and its sources.


1 Limestone 40,000 Kalishore Mines

2 Clay 1,200 India

3 Coke breeze 10,000 India

4 Iron ore 800 India

5 Gypsum 1,000 Khothakpa

Mines

of 93 29



some point source pollution control measures were implemented by the management at the raw

mill and cement mill, the fugitive emission from the materials transfer points, and materials

handling such as gantry stocking, open feeding and leakages along transfer line are contributing

to dust generation. The uncontrolled point source emission from the VSK chimney has further

aggravated dust pollution in the area. The open stocking of limestone has also contributed to

generation of dust emission in the area. Noise is also generated from the operation of the plant

machineries.


The plant has employed total work force of 72 people of which 56 of them are national.


The following table below shows the pollution sources, control measures and observations.

Sl. No Source of Pollution Control

Measures

Observations

1 Fugitive emission at Raw

mill feeding

No control

measures

Fugitive emission is generated


the conveyor belts

No control

measures

Fugitive emission is generated from the

open conveyor system. In addition, the

team observed leakages along the

material transfer lines along the

production chain.


the transfer points

No control

measures



from raw mill

Control

measures

installed

Bag filters are installed for controlling

the emission


from VSK

No control

measures

Emission is generated

7 Fugitive emissions from

knot formation

No control

measure

Fugitive emissions is generated

8 Fugitive emission from No control Fugitive emission is generated while

of 93 30

the Clinker Gantry measures dropping clinker into the Gantry and

thereafter transferring to the cement mill

hopper.

9 Fugitive emission during

addition of Gypsum and

other additives

No control

measures

Gypsum is fed manually at the hoppers.

The feeding process generates dust

emission.

10 Point source from

Cement Mill, cement silo

and packing

Installed

control

measures

Bag house has been installed. However,

there is no provision to monitor the

emission level


cement packing

No control

measure



Stack sampling was carried out for SPM from the raw mill stack and the VSK stack. The graph

below shows that the emission from the VSK stck exceeds the emission standards, while

emission from raw mill stacks remains within the standards.

Figure 1: shows the total amount of stack emissions produced.

Since there is fugitive emission generation in the work place, there is a need to sample and

analyze the workplace emission level.

of 93 31



Materials are not completely conveyed in the enclosed system

No proper record for monthly emission

No record for the water consumption

No safety signs within the plant

Factory floor is not completely concreted

raw materials, such as coal and slag are not stored in closed yard

There are leakages along materials transfer line

No separate energy meter

Monitoring provisions are not adequately provided for all the stack

Poor implementation of OHS

Factory floor is not clean

General housekeeping is poor

Poor sanitation within the plant


Following are the recommendations:

Installed pollution control measures at the raw mill feeding, VSK, knot formation point,

clinker gantry

Enclosed the conveyor belts and transfer point to reduce fugitive emission

Repair leakages along the transfer lines to minimize dust emission

Spray water at least three times a day to suppress dust within the factory premises

Ensure implementation of OHS requirement

Maintain monthly emission and discharge record and submit to NEC

Provide monitoring provision at the cement mill, silo and packing

Maintain separate record for the expenditure related to environmental activities

Ensure that emission and discharge from the plant comply with emission and discharge

standards

of 93 32

of 93 33

8. Bhutan Carbide and Chemicals Limited


Promoter Bhutan Carbide and

Chemicals limited Type of Industry Carbide

Location

Balujhora, Sampheling

Gewog, Chukha

Dzongkhag Products Calcium carbide

Year of

Establishment 1986 Plant Capacity 22,000 MT per annum

Commercial

Production 1988 Actual Production


8.1. Brief Background

Bhutan Carbide and Chemical Limited manufacture Calcium Carbide involving two stage

production processes, lime production in initial stage and carbide production in final stage, using

12 MVA furnace. The plant produces 2.5 MT of calcium carbide per tapping.

8.2. Raw Material and their sources

The table below shows the type of raw material, its sources and annual consumption.


1 Limestone 21394.05 Bhutan/India

2 Char coal 17379.52 India

3 Low Ash 2374.56 India

of 93 34

Metallurgical Coke

4 Raw Petroleum Coke 5603.26 India

6 Nangal Coal 362.46 India

8.3. Environmental Concerns

The major environmental concerns from the operation of plant are fugitive emission from charging and

raw material handling, point source emission from lime kiln, Gas Cleaning Plant (GCP) and furnace

stacks. The process also generates carbide dust. Noise is generated from operation of plant machineries.

During the time of monitoring, the GCP had some mechanical problems.


The plant has employed 316 people of which of 286 are nationals.

8.5. Pollution from Production Process

The table below shows the pollution sources, control measures and observations

Sl.

No

Source of Pollution Control

Measures

Observations

1 Fugitive emission from feeding

the Raw materials into the

hoppers along the production

line.

control measure

installed only in

Screen house

Fugitive emission is generated while feeding

the raw materials into hoppers. The dust in

the screen house is collected in the bag filter.


conveyors and transfer point

No control

measures


conveying materials along the conveyor belts

and transfer points

3 Point source emission Control

measures

installed in Lime

kiln stacks

Cyclone dusts collector installed at Lime

kiln. Bag filter installed for furnace

emission. No appropriate control measure

installed at packing section.

4 Fugitive emission from material

stockyard

No control

measures


5 Fugitive emission from fine

limes, coal and carbide dusts

No control

measure


of 93 35


Stack sampling was carried out for SPM for monitoring at lime kiln stack. There is no monitoring

provision for the packing section stack. The graph below shows the stack emission result for the lime kiln

stack. The graph indicates that the emission exceeds the emission standards.

8.7. Observation against the terms and conditions of the


Raw materials are not completely stored in the closed yard

General housekeeping, cleanliness and hygiene is not maintained


Poor maintenance of the greenery within the factory


Pollution abatement measures need to be installed to control fugitive emission from the raw

materials handling and transfer points

The conveyor belts and transfer line need to be enclosed to reduce generation of dust

Ensure the emission from the lime kiln and GCP stack comply with the emission standards

Ensure that control measures are installed to reduce emission from fine limes, coal, carbide dust

Ensure that raw materials are stored in closed yard

Ensure that general housekeeping, cleanliness and hygiene within the factory premises is

maintained

Improve the greenery in consultation with the nearest office of the Department of Forest

1117

150

0

200

400

600

800

1000

1200

Lime Kiln Emission Standard

SPM

Co

nc

(mg/

Nm

3)

Stack Emission

of 93 36

9. Bhutan Ferro Alloys Limited


Promoter Bhutan Ferro Alloys

Ltd Type of Industry Ferro Alloys

Location

Balujhora, Sampheling

Gewog, Chukha

Dzongkhag Products

1. Ferro Silicon 2. Magnesium Ferro

silicon; 3. Micro silicon

Year of

Establishment 1990 Plant Capacity

4. 31,000 MT of FeSi 5. 300 MT of FeMn,

which is not reflected in EC;

6. 7,000 MT Micro Silica, as by-product of the process

Commercial

Production 1994 Actual Production 3-5 MT per Tapping


9.1. Background information

Bhutan Ferro Alloys Limited manufactures Ferro Silicon and Ferro Manganese using submerged

arc furnace of 18 MVA and 28.5 MVA, which produces 3-5 MT of products per tapping. Part of

Micro Silica dust is also recovered as a product.

9.2. Raw materials, consumption and their sources

The table below shows the type of raw materials, consumption and their sources:

of 93 37


1 Quartzite 61313.840 Bhutan

2 Quartz 864.70 India

3 Char coal 11811.602 India

4 Low Ash

Metallurgical Coke

12818.378 India

5 Mill scale 12588.485 India

6 Nangal Coal 24432.145 India

7 Wood chip 9494.456 Bhutan

8 Electro paste 1844.5 India/Norway

9 Chinese gas coke 1123.895 Chine

10 Magnesium 24.158 China

11 Calcium Silicide 9.335 Brazil

12 Misch Metal 2.035 China

9.3. Environmental concerns

The major environmental concerns from the furnace operation are fugitive emission from

charging and production process, point source emission from GCP and furnace stacks. Noise is

also generated during the operation of the plant.


The plant has total strength of about 300 people of which 97.3% of them are national.


The table below shows the pollution sources, control measures and observations:

of 93 38

Sl.

No


Measures

Observations

1 Fugitive emission

from feeding the Raw

materials into the

hoppers along the

transport system.

Control measures

installed.

Fugitive emissions leaked from the

enclosure.


from stack

Control measures

installed

Bag filters are installed

3 Fugitive emission

from casting system

No control

measures


4 Fugitive emission

from micro silica

collection

No control

measure



Stack sampling was carried out for SPM for from GCP. The graph below shows the result of the

GCP stack emission

of 93 39

The result suggests that the SPM emission from the GCP stack remains within the emission

standards.


clearance

No monthly record of stack emission and quarterly ambient quality

Poor housekeeping, cleanliness and hygiene


Poor greenery within plant

Some raw materials are stored in open yard


Ensure that materials transport system is maintained to minimize leakages

Conduct study to control fugitive emission from casting

Minimize fugitive emission while collecting micro-silica from the bag filter hopper

Carry out monthly stack emission and quarterly ambient air quality, maintain records and

submit to NEC accordingly

Improve housekeeping, cleanliness and hygiene within the factory premises

Improve greenery within the factory premises in consultation with nearest forest office

Ensure that all raw materials are stored in a closed yard

Ensure that the emission and discharge from the plant comply with the emission and

discharge standards

of 93 40

10. Bhutan Ferro Industries Limited


Promoter Bhutan Ferro

industries Ltd Type of Industry Ferro alloy

Location Pasakha Industrial

estate, Chukha Products Ferro silicon

Year of

Establishment June 2006 Plant Capacity 7,365 MT per annum

Commercial

Production June 2008 Actual Production 2 MT per Tapping



Bhutan Ferro Industries Limited manufactures Ferro Silicon using submerged arc furnace of 9

MVA, which produces 2 MT of products per tapping.

10.2. Raw material, its consumption and sources

The table below shows the raw material consumption and its source.


1 Quartzite 28000 Bhutan

of 93 41

3 Char coal 21000 India

4 Low Ash

Metallurgical Coke

4200 India

5 Mill scale 5600 India

6 Nangal Coal 2800 India

7 Wood chip 5600 Bhutan



charging and production process, and point source emission from GCP and furnace stacks. Noise

is also generated during the operation of the plant.


The plant has total strength of about 113 people of which 69 of them are national.

10.5. Pollution form the production process

The table below shows the pollution source, control measures and observations.

Sl.

No


Measures

Observations

1 Fugitive emission from feeding

of Raw materials into the

hoppers

No control

measures

Fugitive emission is generated.


conveyors belts and transfer

point

No control

measures


3 Point source emission from GCP

and furnace stacks

Control

measures

installed

Bag house filter is installed at GCP stacks.

Occasionally, emission is also discharged

from the furnace stack

4 Fugitive emission from the

furnace operation

No control

measures

Fugitive emission is generated from the

open furnace gate

5 Fugitive emission from runner No control Fugitive emissions is generated

of 93 42

during tapping process measures

4 Fugitive emission from material

stockyard

No control

measures


5 Fugitive emission from micro

silica collection

No control

measure



Stack sampling was carried out for SPM from the GCP stack. The graph below shows that the

stack emission is within the standards.

of 93 43

.

10.7. Observations against the terms and condition of



No record for monthly emission and quarterly ambient quality

Poor general housekeeping, cleanliness and hygiene


Poor initiative to maintain the greenery


Minimize fugitive emission generation from feeding hoppers, conveyor belts and tapping

process

Enclose furnace gate

of 93 44








discharge standards

of 93 45

11. Druk Ferro Alloy Limited


Promoter Druk Ferro Alloy

Limited Type of Industry Ferro alloys


limited, Chukha Products Ferro silicon

Year of

Establishment September2008, Plant Capacity 13,200 MT

Commercial

Production Actual Production 3-5 MT per Tapping



Druk Ferro Alloys Limited manufactures Ferro Silicon using submerged arc furnace of 18 MVA,

which produces 3-5 MT of products per tapping.

11.2. Raw material, its consumption and sources

The table below shows the raw material consumption and its sources.


1 Quartzite 13,200 Kamji Mines

2 Quartz 13,200 India

3 Char coal 8,700 India

4 Low Ash

Metallurgical Coke

5,400 India

5 Mill scale 5,300 India

6 Nangal Coal 5,400 India

7 Wood chip 4,000 Bhutan

of 93 46






The plant has total strength of about 120 people of which 67% of them are national.


The following table shows the pollution sources, control measures and observations.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Fugitive

emission from

feeding Raw

materials into

the hoppers.

No control

measures


2 Fugitive

emission from

conveyors and

transfer point

No control

measures


3 Point source

emission from

GCP and

furnace stacks

Control

measures

installed

Bag house filter is installed at GCP

stacks. Occasionally, emission is also

discharged from the furnace stack

4 Fugitive

emission from

material

stockyard

No control

measures


5 Fugitive

emission from

micro silica

collection

No control

measure


of 93 47




11.7. Observations against the terms and condition of environmental

clearance:



Poor housekeeping, cleanliness and hygiene needs to improved


No Initiative to maintain the greenery


Minimize fugitive emission generation from feeding hoppers and conveyor belts








discharge standards

of 93 48

12. Druk Wang Alloys Limited


Promoter Druk Wang Alloys

Limited Type of Industry Ferro Alloy


Estate, Chukha Products Ferro silicon

Year of

Establishment August 2008 Plant Capacity 13,000 MT per annum

Commercial




Bhutan Wang Alloys Limited manufactures Ferro Silicon using submerged arc furnace of 18

MVA, which produces 3-5 MT of products per tapping.

12.2. Raw materials, its consumption and sources

The table below shows the raw materials, its consumption and sources.


1 Quartzite 11,350 Kamji and …..

2 Quartz 11,350 India


4 Low Ash

Metallurgical Coke

5328 India




of 93 49








The table below shows the pollution sources, control measures and observations.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Fugitive

emission from

feeding Raw

materials into

the hoppers.

No control

measures


2 Fugitive

emission from

conveyors and

transfer point

No control

measures


3 Point source

emission from

GCP and

furnace stacks

Control

measures

installed


stacks. Occasionally, emission is

also discharged from the furnace

stack

4 Fugitive

emission from

material

stockyard

No control

measures


5 Fugitive

emission from

micro silica

collection

No control

measure


of 93 50





clearance















discharge standards

of 93 51

13. Ugen Ferro Alloys Limited


Promoter Ugen Ferro Alloys

Limited Type of Industry Ferro Alloy


Estate, Chukha Products Ferro silicon

Year of

Establishment September 2008, Plant Capacity 13,000MT per annum

Commercial




Ugen Ferro Alloys Limited manufactures Ferro Silicon using submerged arc furnace of 18 MVA,

which produces 3-4 MT of products per tapping. During the time of monitoring, it was observed

that filter bags in three chambers were damaged.

13.2. Raw material, its consumption and source

The table below shows the raw material consumption and its sources.


1 Quartzite 28000 Bhutan


3 Low Ash

Metallurgical Coke

6700 India




of 93 52








The table below shows the pollution sources, control measures and observations.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Fugitive

emission from

feeding Raw

materials into

the hoppers.

No control

measures


2 Fugitive

emission from

conveyors and

transfer point

No control

measures


3 Point source

emission from

GCP and

furnace stacks

Control

measures

installed


stacks. Occasionally, emission is

also discharged from the furnace

stack

4 Fugitive

emission from

material

stockyard

No control

measures


5 Fugitive

emission from

micro silica

collection

No control

measure


of 93 53



stack emission, monitored in April, 2009 is above the standards as filter bags were damaged

during the monitoring. The plant was later shut down to rectify the problem.


clearance















discharge standards

226.8

150

1.16 0

50

100

150

200

250

GCP on April 17, 2009 Emission Standard GCP on Jan 23, 2009

SPM emissi on (mg/Nm3)

Industrial Stack Emission

of 93 54

FOOD and

DRINKS

INDUSTRIES

of 93 55

14. Army Welfare Project


Promoter

Army Welfare

Project

Type of Industry Liquor Bottling Unit

Location Samtse Products

Whisky

Brandy

Rum,

Gin

Ara

Year of

Establishment

1974 as Bhutan

Center Distillery

(BCD) and as AWP

in 1984

Plant Capacity

Commercial




Samtse Distillery Unit of Army welfare project bottles whiskey, brandy and rum and distills Ara.

The production during the monitoring day was about 9000 liters XXX Bhutan Rum for 8 hours.

of 93 56


The following table shows the annual consumption of raw materials and its source.

Sl. No Particulars Quantity (Cases) Sources

1 Whiskey 89969 Gelephu and India

2 Rum 88636 India

3 Gin 17808 India

4 Spice liquor 25,717 India

5 Brandy 9920 India

6 Ara 1251 India/Bhutan


There is no major environmental concern, except for the generation of wastewater.


The plant has total strength of 37 people of which of around 60% them are national.


The following table shows the pollution sources, control measures and observation.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Wastewater No control

measure

Wastewater is generated from

washing of bottles, which is directly

discharged into the environment

of 93 57


The monitoring team has not taken any samples for analyzing any pollutants. The observations

here are based on visual inspection only.


clearance

The activities are implemented as per the terms and condition of the EC.


Based on the visual inspection, following recommendations are made, and the management has

agreed to implement it.

Sl.

No


1 Water

management, if

there is water

shortage

The management shall study the

option of recycling water within the

plant

The management shall inform

NEC accordingly

2 Environmental

Budget



related to the environment.

To be submitted

of 93 58

15. Bhutan Fruits Productions Pvt. Ltd.


Promoter

Bhutan Fruits

Production Pvt.

Ltd

Type of

Industry Food Processing

Location Samtse Products

Jams,

Pickles,

Squash and juice

Sauce

Sundry fruits and vegetable

namely sliced pineapple,

baby corn sweet corn etc

Year of

Establishment 1960

Plant

Capacity

Commercial

Production

Actual

Production 6,000 MT



Bhutan Fruit Products Private Limited manufactures food products ranging from fruit juices to

pickles of various flavors. The production during the monitoring day was about 9 MT of tomato

products for 13 hours.


The following table shows the annual consumption of raw materials and its sources.

Sl.

No


1 Mango ripe 200 India

2 Tomato 500 India

3 Apple 20 Bhutan

4 Orange 25 Bhutan

of 93 59

5 Pineapple 800 India

6 Maize 150 India

7 Mango titbit 25 India

8 Sulphited

juices (orange)

300 India

9 Chilly, carrot,

turnip etc

100 India

10 Water 36000 (m3) Bhutan

11 Sugar 1200


The major environmental concerns from the plant are air pollution from the boiler operation

water pollution from raw material and plant equipment washing.


The plant has total work strength of 340 people of which 206 of them are nationals.


The table shows the pollution source, control measures and observation.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Point source

emission from

the stack

No control

measures

Emissions is generated from boiler

2 Fugitive

emission from

the boiler

feeding

control

measures


3 Wastewater Installed

control

measure

Wastewater is treated in sedimentation

tank

of 93 60

4 Noise

generation

PPE PPE provided


The monitoring team has not conducted any air quality sampling from the plant site as the plant

was under process of changing the existing coal fired boilers to HSD. Therefore, all the

observations noted here is purely visual inspection.

Water is predominantly used for washing the raw materials while some amount of water has

been consumed while making products. In general, it is observed that the management has

installed water treatment plant, where the processed water is treated prior to its discharge into the

environment.


clearances:

The general housekeeping has improved, including tiling and epoxy flooring

The management has installed sedimentation tank

The management has improved the sanitation facilities within the plant

The Management has installed automatic hand washers

The spent materials generated from the process has been dumped along with the spent

coal in the dump yard

The plant was under process of changing the coal fired boiler to HSD, which is

expected to generate less SPM.

of 93 61


Based of the above observation, following recommendations are made, and the management has

agreed to implement it strictly.

Sl.

No


1 Water management The management shall study the

option of recycling water within

the plant

The management shall inform NEC

accordingly

2 Solid waste The process has generated spent

solid waste

The management shall segregate the

spent solid waste generated from the

process and the spent coal. The

options of composting the spent bio-

degradable waste will be

investigated and inform NEC within

three months from date of issue of

this observations

3 Environmental

Budget


record of the environmental

expenses

To be submitted

of 93 62

POWDERING

PLANTS

of 93 63

16. Dolomite Crushing Unit, Jigme Industries Pvt Ltd


Promoter Jigme Industries Pvt.

Ltd. Type of Industry

Dolomite Crushing and

Screening Plant

Location Pagli, Samtse Products

Crushed dolomite of 25-

50 mm, 10-25mm, 5-

25mm, 5-12mm, 1-5mm

and 60-80 mesh sizes

Year of

Establishment June, 2005

Plant Capacity per

annum 12,672,00 MT

Actual Production 650,000-700,000MT Date of Monitoring March 23, 2009


Jigme Industries Private industries crush

dolomite boulders and screens to sizes of

25-50 mm, 10-25 mm, 5-12 mm of 1-5 mm.

The factory products of 60-80 mesh of

dolomite powders is recovered from the

sedimentation tank. The plant has a capacity

to produce 1,267,200 MT per annum,

however the plant produces only 650,000-

700,000MT per annum due to limited

market. The plant has two units for crushing and screening. At the time of monitoring, both

crushing units were operating while only one screen was operational. The production was about

2400 MT for a shift of 16 hours.

16.2. Raw materials, annual consumptions and their sources

Dolomite is the raw material for the plant and is extracted from Chunaikhloa dolomite mine

which is being operated by the same company. The following table shows the annual

consumption of raw material by the plant.

Sl.

No Particulars Quantity (MT) Sources

1 Dolomite 650,000 Chunaikhola Dolomite

of 93 64

boulders Mines


As stated above, following are the environmental concerns related to the operation of the plant

particularly from the production process.

Fugitive emissions from feeding, transfer points, and transfer lines along the MS chute

Loading and unloading of the raw materials and finished products also contributes to the

air pollution

Spillage of raw materials along the side of MS chutes

Generation of wastewater during washing of products

Noise is generated from the operation of the plant


Some of the direct positive impacts include employment and socioeconomic opportunities for the

local people. The plant has total workforce strength of 38 people of which 35 of them are

national.

16.5. Pollution from the Production Process

The following table shows the sources of pollution and control measures.

Sl.

No

Source of

Pollution

Control

Measures

Observations

1 Fugitive emission

from the materials

feeding hopper

No control

measures

Fugitive emission is generated while loading

the materials into the hoppers

2 Fugitive emission

from crusher

Control

measures

installed

Water is sprayed while feeding the materials

into the hopper which controls some of the

fugitive emission

3 Fugitive emission

from the discharged

conveyor belts of

the crushers

No control

measures


transferring the materials to the MS chute

inlet

4 Fugitive emission

during sweeping of

the crusher floors

No control

measure

Significant amount of fugitive emission is

observed while cleaning the crusher floors

of 93 65

5 Spillage of crushed

materials

No adequate

control

measure

Some of the crushed materials are spilled out

while conveying through MS chute to the

screen house.

6 Wastewater from

the process

Control

measures

installed

Water is used for washing materials conveyed

through the chute. The wastewater thus

generated from the washing process is treated

in the sedimentation tank

7 Noise generation

from the crushers

PPE PPE is supplied to the workers.


The monitoring team has not conducted any air quality sampling from the plant site. The

observations are based on visual inspection.

Water is predominantly used for controlling dust and washing of materials to improve the quality

of finished products. It is also used for effective transfer of crushed materials along the MS chute

to the screen house. The wastewater is generated from these processes. In general, it is observed

that some amount of water has been wasted through leakages.

Figure 4 Sedimentation tank

16.7. Observations against the environmental clearance

Limited initiatives to maintain greenery around the plant


Raw materials are completely enclosed within closed yard

The vehicles transporting raw materials and finished products are not covered

Conveyor belts and MS chutes are not enclosed

of 93 66


Both he observations and recommendations were discussed with the management. The

management has agreed to implement the recommendations.

Sl.

No


1 Controlling fugitive

emissions

The management shall submit a

comprehensive plan for controlling

fugitive emissions from the process and

its associated operation


submit the dusts control plan

to NECS by June 30, 2009

2 Water Leakage

along the

production line


arrange to rectify the production line.




observation

3 General

Observation




implement it strictly with

immediate effect

4 Environmental

Budget

The management shall maintain a

separate record for expenditure incurred

for environmental activities.

Report shall be submitted

along with dusts control plan

to NECS

In conclusion, the crushing and powdering plants are operating under the purview of same

environmental clearance, although it is located in two different areas in Pagli. The management

will have to clarify this with NECS through Department of Industries.

of 93 67

17. Dolomite Powdering Unit of Jigme Industries Pvt. Ltd


Promoter Jigme Industries Pvt.

Ltd. Type of Industry

Dolomite Powdering

Plant

Location Pagli, Samtse Products Dolomite powder

Year of

Establishment June, 2005 Plant Capacity

85,000 MT

Commercial




Dolomite powdering Unit of Jigme Industries

Pvt Ltd pulverizes dolomite lumps and fine

dolomite into powder. During the monitoring

period, five of the six pulverizer units were

operating. The production during the monitoring

period was about 115 MT per 8 hours shift.


Dolomite is the raw material for the plant and is extracted from Chunaikhloa dolomite mine

which is operated by the same company. The following table shows the annual consumption of

raw material by the plant.

Sl.

No


1 Dolomite fines 85,000 Chunikhola Dolomite

Mines

of 93 68


Following are the environmental concerns related to the operation of the plant particularly from

the production process.

Fugitive emission from transporting and loading of raw materails, transfer points, transfer

lines, packing process and leakages from pulverizers

Fugitive emission is also generated while transporting finished products from packing

point to the weighing scales

There is leakage from bag filter

Noise is generated from the pulverizing process




national.


The following table shows the pollution sources and control measures.

Sl.

No

Sources of Pollution Control

Measures

Observations

1 Fugitive emission

from the materials

feeding hopper

No control

measures


loading materials into the hoppers

by loader

2 Fugitive emission

from the transfer

points

No control

measures


transferring raw materials from the

conveyor belt to the hopper

3 Fugitive emission

from conveyor belt

No control

measures


transferring the materials along the

conveyor belt

4 Fugitive emission

during packing

No control

measure

Fugitive emission is generated from

packing point

5 Fugitive emission

from bag filter

cleaning

No control

measure


cleaning bag filters

6 Fugitive emission in No control The movement of loaders within the

factory premises contribute to dust

of 93 69

the plant area measures emission

7 Fugitive emission

from pulverizer

No control

measures

Fugitive emission are generated as

the Leakages from the pulverizer

8 Noise Emission from

the plant operation

No PPE No PPE are supplied to workers

17.6. Possible pollutants monitored and findings

As there is no stack, sampling for stack emission was not carried out. However, it was observed

that the process generates fugitive emission. In order to determine the level of fugitive emission

generation, there is a need to carry out sampling.

Figure 5; Fugitive Emission

17.7. Observations against the terms and conditions of


No Safety signs are posted in the premises

Poor implementation of OHS measures



Vehicles transporting raw materials and finished products are not covered

Conveyor belts are not enclosed

Spillages of oil and grease in the area

Poor sanitation in the plant area

No first aid kit available at site

of 93 70


Both the observations and recommendations were discussed with the management. The

management has agreed to implement the recommendations.

Sl.

No


1 Controlling

fugitive emission



fugitive emission from the packing

process, materials loading, material

transfer points and lines, movement of

vehicles


submit the fugitive emission

control plan to the NECS by

June 30, 2009

2 Leakage in

equipments

(Cyclones)


rectify the problem.


implement it strictly within

three months from the date

of issue of this observation

3 General

Observation


of the general observations



immediate effect

4 Environmental

Budget



related to environmental activities.


along with environmental

management plan.

of 93 71

18. Pagli Stone Quarry


Promoter Pagli Stone Quarry Type of Industry Stone Crushing Unit

Location Pagli, Samtse Products quartzite boulders,

lumps, chips and fines

Year of

Establishment April, 2008 Plant Capacity

218,500 MT

Commercial




The stone crushing unit within the mining area of Pagli Stone Quarry crushes quartzite to

boulders, lumps, chips and fines. During the monitoring period, the entire units were operational.

One additional screening unit was under construction. The production during the monitoring day

was about 200 MT for 8 hour shift.


Quartzite is the raw material for the plant and is extracted from Pagli stone quarry operated by

the same company. The following table shows the annual consumption of raw material by the

plant.

Sl.

No


1 Quartzite of

construction

grade

312,000 Pagli Stone Quarry




Some fugitive or workplace emission from feeding, transfer points, transfer lines

along the conveyor belt

Noise generation from the operation of plant

of 93 72



local people. The plant has total workforce strength of 12 people of which 8 of them are national.


The following table shows the pollution sources, control measures and observations

:Sl. No Source of Pollution Control

Measures

Observations

1 Fugitive emission

from the materials

feeding hopper

No control

measures


loading materials into hoppers

2 Fugitive emission

from crusher

No control

measures

Fugitive emission is generated from

crushing of materials

3 Fugitive emission

from conveyor belts

No control

measures


transferring the materials through

the transfer lines

4 Fugitive emission

from loading

No control

measures

Fugitives emission is generated from

loading of finished products


The monitoring team has not conducted any air quality sampling from the plant site. The

observations are based on the visual inspection.

of 93 73

18.7. Observation against the terms and conditions of the


No environmental clearance was produced at site to assess the observations.


Both observations and recommendations were discussed with the management. The management

agreed to implement the recommendations as follows.

Sl.

No



emissions



fugitive emission from the production

process.




2 Environmental

Budget



related to the environmental activities.


along with dust control plan

to NECS

of 93 74

19. Chundu Dolomite Powdering Plant


Promoter

Chundu Dolomite

Powder Plant

Type of Industry Dolomite Powdering

Plant

Location Pagli, Samtse Products


50 mm, 10-25mm, 5-

25mm, 5-12mm, 1-5mm


Year of

Establishment October, 1999 Plant Capacity 40,000 MT

Commercial




Chundu Dolomite powdering Unit

crushes lumps and fine Dolomite into

powder. During the monitoring period, all

three crushing unit were operational. The

production during the monitoring was

about 100 MT over the period of 20 hours

operation.


Dolomite is the raw material for the plant and is extracted from Chunikhola Dolomite Mines

operated by Jigme Industries Pvt. Ltd. The following table shows the annual consumption of raw

material by the plant.

Sl. Particulars Quantity (MT) Sources

of 93 75

No

1 Dolomite fines 36,000 Chunikhola Dolomite

Mines




Fugitive emission is generated from loading, transfer points, transfer lines, packing

process and bag filter cleaning

Fugitive emission is generated while transporting finished products from packing

point to the weighing scale

Fugitive emission is generated from leakages of bag Filter



local people. The plant has total workforce strength of 40 people of which 6 of them are national.




Measures

Observations

1 Fugitive emission

from materials feeding

hopper

No control

measures


loading materials into the hoppers by

loader

2 Fugitive emission

from the transfer

points

No control

measures


transferring the raw materials from the

conveyor belt to the crusher hopper

3 Fugitive emission

from conveyor belt

No control

measures


transferring the materials along the

conveyor belt. No enclosures provided to

control the falling chips into the work zone

4 Fugitive emission

during packing

No control

measure

Fugitive emission is generated during

packing.

5 Fugitive emission No control Fugitive emission is generated from bag

of 93 76

from bag filter

cleaning

measure filter cleaning

6 Fugitive emission in

the plant area

No control

measures

Fugitive emission generated from

movement of loaders within the factory

premises

7 Fugitive emission

from crushers

No control

measures

Fugitive emission generated as Leakages

from pulverizer

8 Noise Emission from

process

No control

measures

No PPE supplied to the workers.


As there is no stack, sampling for stack emission was not carried out. The observation is based

on the visual inspection. Since the process generates fugitive emission, there is a need to carry

out samplings.

19.7. Observations against the terms and conditions of




No initiatives to maintain the greenery around the plant


Vehicles transporting raw materials and finished products are not covered

Conveyor belts are not enclosed


of 93 77

No environmental clearance displayed at plant site



management has agreed to implement them as follows.

Sl.

No



emission



fugitive emission from the packing

process, materials loading, material

transfer points and lines, movement of

vehicles and cleaning of bag filters




2 Leakage in

equipment



The management shall carry

out the required rectification

strictly within one month


observation

3 General

Observation




implement strictly with

immediate effect

4 Environmental

Budget


separate record of the expenditures



along with dust control plan

to NECS.

of 93 78

20. Kenpa Pvt. Ltd


Promoter Kenpa Pvt. Ltd. Type of Industry Dolomite Powdering

Unit

Location Gomtu, Samtse Products


50 mm, 10-25mm, 5-

25mm, 5-12mm, 1-5mm


Year of

Establishment October 26, 2005 Plant Capacity 72,0,00 MT

Commercial




Kenpa Dolomite powdering Unit pulverizers

Dolomite lumps and fine into powder. During the

monitoring period, only one of four units was

operational due to limited market for the products.

The production during the monitoring was 40 MT.


Dolomite is the raw material for the plant and is extracted from Chunikhola Dolomite Mines

operated by Jigme Industries Pvt. Ltd. The following table shows the annual consumption of raw

material by the plant.

Sl.

No


1 Dolomite

boulder and

fines

80,000 Chunikhola Dolomite

Mine

of 93 79




Fugitive emission is generated from loading, transfer points, transfer lines, packing

process and bag filter cleaning

Fugitive emission is generated while transporting finished products from packing

point to the weighing scale

Fugitive emission is generated from leakages of bag Filter




national.




Measures

Observations

1 Fugitive emission

from the materials

feeding hopper

No control

measures


while feeding materials into the

hoppers by loader

2 Fugitive emission

from the transfer

points

No control

measures


while transferring the raw

materials from the conveyor belt to

the hopper

3 Fugitive emission

from conveyor belt

No control

measures


while transferring the materials

along the conveyor belt

4 Fugitive emission

during packing

No control

measure


during packing.

5 Fugitive emission No control

measure


from Leakages of the bag filter

6 Fugitive emission in

the plant area

No control

measures

Fugitive emission is generated by

the movement of traffic

of 93 80

7 Noise Emission No control

measures

No PPE is supplied to the workers



on the visual inspection. Since the process generates fugitive emission, there is a need to carry

out samplings.

20.7. Observation against the terms and condition of the


Solid wastes are not properly disposed



No initiatives are taken by the company to maintain the greenery



No first aid kit available at site

of 93 81



has agreed to implement it as follows.

Sl.

No



emission



fugitive emissions from packing

process, materials feeding process,

material transfer, and vehicle

movement



to NECS by April 27, 2009

2 Leakage from bag

filter





3 General

Observation





immediate effect

4 Environmental

Budget





along with dust control Plan

to NECS

of 93 82

21. Damchen Dolomite and Mining Industries


Promoter

Damchen Dolomite

and Mining

Industries

Type of Industry Dolomite Powdering

Plant

Location Tashi Jong, Samtse Products Talc powder

Dolomite powder

Year of

Establishment

Talc: March, 2009

Dolomite: February,

2008


Commercial




Powdering Plant of Damchen Dolomite and

Mining Industries pulverizes dolomite and

talc lumps and fine into powder. During the

monitoring period, two powdering units were

under operation. The production during the

monitoring was about 12 MT of talc powder

in 8 hours.

of 93 83

21.2. Raw Materials, annual consumptions and their sources

Dolomite and Talc are the raw material for the plant. Dolomite is collected from river bed and

Talc is extracted from Sadhu Madhu Talc mine operated by the same company. The following

table shows the annual consumption of raw material by the plant.

Sl.

No


1 Dolomite 5,000 River bed collection

2 Talc 20,000 Sadhumadu Talc Mine




Fugitive emission is generated from loading, crushing and packing process

Fugitive emission is generated during transportation finished products from

packing point to the weighing scales

Noise is generated from operation of the machines



people. The plant has total workforce strength of about 11 regular staff from which 5 of them are

nationals.




Measures

Observations

1 Fugitive emission

from materials

feeding hopper

No control

measures



2 Fugitive emission

during packing

No control

measure


during packing

3 Fugitive emission

from bag filter

No control

measure


during the cleaning of bag filters

of 93 84

cleaning

4 Fugitive emission

from pulverizers

Installed

control

measures

Leakages are observed from the

pulverizers

5 Noise Emission No Control

measures

No PPE supplied to workers


As there is no stack, sampling for stack emission was not carried out. The observations are based

on the visual inspection. Since the operation of the plant generates fugitive emission, there is a

need to conduct sampling.

21.7. Observations against the terms and conditions of the




Limited initiatives to maintain the greenery around the plant


Vehicles transporting raw materials are not covered

of 93 85



has agreed to implement them as follows.

Sl.

No



emission

The management shall conduct study

on the methods to control fugitive

emissions from the plant.


submit the report to NECS

within 6 months from the

date of issue of this

observation

2 General

Observation





immediate effect

3 Environmental

Budget




Report shall be submitted to

NECS within four months


report

of 93 86

22. Lhachhen Mineral Industry


Promoter Lhachhen Minerals

Industry. Type of Industry

Mineral Powdering

Plant

Location Tashi Jong, Samtse Products Talc power

Dolomite powder

Quartzite chips

Year of

Establishment

May, 1992 (Shifted

to current location in

2001)


Commercial




Powdering Plant of Lhachhen Mineral Industry, previously known as Jigme Dolomite Crushing

unit pulverizes and crushes Dolomite, talc and quartzite lumps and fine into powder. During the

period of monitoring, four of the five units were operational. The production during the

monitoring was about 13 MT of talc power from one talc powdering unit for 8 hours.


Dolomite, Talc and Quartzite are the raw material for the plant. Dolomite is collected from river

bed, Talc is extracted from Kharipakha, Chimana Drangra and Mow Tar Talc mines and

Quartzite is obtained from Tintaley Quartzite mine. The following table shows the annual

consumption of raw material by the plant.

Sl.

No



2 Talc 20,000 Kharipakha, Chimana

Drangra and Maw Tar

Mines

3 Quartzite 5,500 Tintaley Quartzite mine

of 93 87





Fugitive emission is generated during transportation finished products from

packing point to the weighing scales




local people. The plant has total workforce strength of about 200 people of which 35 of them are

national.




Measures

Observations

1 Fugitive emission

from materials

feeding hopper

No control

measures



2 Fugitive emission

during packing

No control

measure


during packing

3 Fugitive emission

from bag filter

cleaning

No control

measure



4 Fugitive emission

from pulverizers

Installed

control

measures


pulverizers


measures




on the visual inspection. Since the operation of the plant generates fugitive emission, there is a

need to conduct sampling

of 93 88



No Safety signs in the premises



Raw materials are not completely enclosed within closed yard

Vehicles transporting raw materials are not covered

Spillages of oil and grease in the area


No environmental clearance at site

Factory floor is not concreted



management has agreed to implement them as follow.

of 93 89

Sl.

No



emission








observation

2 General

Observation





immediate effect

3 Environmental

Budget







report

of 93 90

23. Nob Minerals


Promoter Nob Minerals Type of Industry Mineral Crushing and

Powdering Plant

Location Tashi Jong, Samtse Products Talc power

Dolomite powder

Stone aggregates

Year of

Establishment

Talc: February 2008

Dolomite: 2002 Plant Capacity

Dolomite and Talc:

30,000 MT

Aggregates: 360,000

CFT

Commercial




Powdering Plant of Nob Minerals crushes/pulverizes Dolomite/talc lumps and fines into powder.

It also crushes boulders into aggregates. During the monitoring period, stone crusher and talc

powdering units were under operation. The production during the monitoring was about 10 MT

in 8 hours.


Dolomite, Talc and Quartzite are the raw material for the plant. Dolomite and boulders are

collected from river bed and Talc is extracted from Soilaykhola Talc mine. The following table

shows the annual consumption of raw material by the plant.

Sl.

No



2 Talc 4,000 Soilaykhola Talc Mine

3 Boulders 360,000 CFT River bed collection

of 93 91





Fugitive emission is generated during transportation finished products from packing

point to the weighing scales




local people. The plant has total workforce strength of about 11 regular staff from which 5 of

them are nationals.




Measures

Observations

1 Fugitive emission

from materials

feeding hopper

No control

measures



2 Fugitive emission

during packing

No control

measure


during packing

3 Fugitive emission

from bag filter

cleaning

No control

measure



4 Fugitive emission

from pulverizers

Installed

control

measures


pulverizers


measures


of 93

23.6. Possible Pollutants Monitored and Findings

As there is no stack, sampling for stack emission was not carried out. The observation is based on the

visual inspection. Since the operation of the plant generates fugitive emission, there is a need to

conduct sampling.

23.7. Observations against the terms and conditions of environmental

clearance





Raw materials are not stocked within the closed yard

of 93


Both the observations and recommendations were discussed with the management. The management

has agreed to implement them as follow.

Sl.

No



emission








observation

2 General

Observation





immediate effect

3 Environmental

Budget







report

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