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Transcript of HAMS Washing & Dyeing Ltd. · Dyeing Production, Solid waste record, ETP outlet water quality &...
1
HAMS Washing & Dyeing Ltd.
Sustainability Report (2016-2017)
Prepared by
Md. Riyajul Haq, Asst. Manager (Environment & Chemical)
HAMS Group
January 2017
2
EXECUTIVE SUMMARY
Introduction
HAMS Washing & Dyeing Ltd. has been working to adopt & implement various strategies
and an approach towards sustainability. As part of this work, water consumption, waste
wastewater generation and energy consumption are recorded. Besides, greenhouse gas
emission and solid waste inventory are maintained. The water & energy consumption, waste
generation and greenhouse gas emission are reviewed by the authority of HAMS Washing &
Dyeing Ltd through sustainability report which is drafted yearly. The authority of HAMS
Washing & Dyeing Ltd sets target and define strategies to reduce water & energy
consumption as well as to improve environmental performance.
Water consumption Record
The source of water for HAMS Washing & Dyeing Ltd is underground water. The main
purpose of water metering system is; to track & measure total water withdrawal from
underground, total water consumption for production & domestic purpose and the total
wastewater generation from HAMS Washing & Dyeing Ltd.
Energy Consumption & GHG emission Record
In textile, energy is an important component and without this textile industry cannot be
operated. Energy resources are limited and these must be used reasonably and responsibly.
HAMS Washing & Dyeing Ltd mainly uses natural gas & diesel for generating power &
steam. Besides, purchase electricity is also used from REB.
Table: GHG emission record from HAMS Washing & Dyeing Ltd in 2016
GHG Emission Summery
Year Direct emission (stationery
fuel combustion)
Indirect emission (purchased
electricity consumption) Total in
tCO2e
2016 1951.9 777.4 2729.3
Dyeing Production, Solid waste record, ETP outlet water quality & sources of air
emission
The production activities of HAMS Washing & Dyeing Ltd is washing & dyeing of finish
garments specially denim. The production record is maintained in pcs but to convert in
weight, every pcs is considered equivalent to 450 gram.
Hazardous waste: Iron+Tin+Steel, Aluminum, Broken Glass, Broken tub-light, ETP Sludge,
Wastage oil, Chemical Drum, Medical waste, Poly and plastic bag.
Non Hazardous waste: Cartoon
The solid waste generated from HAMS washing & Dyeing Ltd is segregated with 11 classes.
Only one item was found nonhazardous waste namely cartoon and others are hazardous.
3
Table: Solid waste record of 2016
Year Non Hazardous waste
in kg
Hazardous waste
in kg Total Solid
waste in kg
2016 1311 6507.5 7818.5
Air emission inventory is presented in table-5. Air emission inventory is maintained annually.
The air emission test is conducted by third party annually for HAMS Washing & Dyeing Ltd.
There is no accredited body in Bangladesh for air emission test. That’s why third part air
emission test results are not presented in air emission inventory.
HAMS Washing & Dyeing Ltd. has an in-house ETP laboratory to analysis wastewater
(before & after treatment). Almost all kind of parameter like as COD, BOD, TSS, pH, TDS,
MLSS, SV, SVI, F/M can be analyzed by ETP laboratory
Target Setting & Action Plan
HAMS Washing & Dyeing Ltd. sets target to improve environmental performance as well as
reduce energy & water consumption. The concern authority review improvement against
target annually and take corrective action plan to achieve target.
Action plan to reduce energy consumption: Hot water/Condensate Recovery, Install solar
panel, Use LED & Energy saving Light & Replacing conventional boiler with energy saving
boiler including economizer.
Action plan to reduce water consumption: Rain Water Harvesting, Using Water Efficient
Equipment, Reuse Blower cooling water & Awareness & Monitoring.
The chemical management system will be formulated and it will work through Plan-Do-
Check-Act framework.
Conclusion
Table: Production, water & energy consumption and wastewater generation in 2016
Year 2016
Washing production(MT) 4798.7
Water consumption(m3) 151258.7
Waste water(m3) 137909.8
Energy consumption(GJ) 43799.5
Table: Base year water & energy KPI for per ton production
Year Base year 2016 Target year 2018
Water consumption 31.5 Reduce by 10% from base year
Energy consumption 9.1 Reduce by 5% from base year
4
Table of Contents
Executive Summery 2
Introduction 5
Water consumption Record 6
Energy Consumption & GHG emission Record 7
Dyeing Production, Solid waste record, ETP outlet water quality & sources of air emission 8
Target Setting & Action Plan 11
Conclusion 16
Acronyms and Abbreviations
EMS Environmental Management System
BMD Bangladesh Meteorological Department
GJ Giga Joule
MT Metric ton
GHG Green House Gas
ETP Effluent Treatment Plan
COD Chemical Oxygen Demand
BOD Biological Oxygen Demand
TDS Total Dissolved Solid
TSS Total Suspended Solid
MLSS Mixed Liquor Suspended Solid
SV Sludge Volume
SVI Sludge Volume Index
F/M Food to Microorganism
REB Rural Electrification Board
KWH Kilowatt Hour
LED Light Emitting Diode
5
Chapter 1
Introduction
The textile & garment industry has become the backbone of the economy of Bangladesh.
About three million people are involved with garment and textile industries. It is essential to
promote sustainability in this large industrial sector. When the world textile & garment
market and companies are focusing on environment friendly products, the Bangladeshi
garment and textile industries are far beyond of it and it poses a risk of losing the world
market. It is high time to adopt special strategies and an approach towards sustainability.
Manufacturing environment friendly products in a sustainable way is the most important and
emerging issue at the present phase of industrialization. The main focus comprises not only to
the products quality sustainability but also it focuses on the manufacture processes including
raw material resources from cradle to grave. Nowadays many companies and organizations
focus on the environment friendly way of production. Sustainability of the textile & garments
industry is also a burning issue, needed to adopt cleaner and improved technology and
management for better environment.
Despite the significant economic contribution of the textile industries in Bangladesh, it has
brought with it a range of environmental problems, mostly pollution of water resources of the
country, energy resources degradation/CO2 emission & eutrophication. Water is very
important resources in our ecology. In textile, water is an important component and without
this textile industry cannot be operated. Huge quantity of water is used specially in dyeing &
washing section. Water & energy resources are limited and these must be used reasonably
and responsibly.
HAMS Washing & Dyeing Ltd. has been working to adopt & implement various strategies
and an approach towards sustainability. As part of this work, water consumption, waste
wastewater generation and energy consumption are recorded. Besides, greenhouse gas
emission and solid waste inventory are maintained. The water & energy consumption, waste
generation and greenhouse gas emission are reviewed by the authority of HAMS Washing &
Dyeing Ltd through sustainability report which is drafted yearly. The authority of HAMS
Washing & Dyeing Ltd sets target and define strategies to reduce water & energy
consumption as well as to improve environmental performance.
Based on water & energy consumption data of 2016, the authority of HAMS Washing &
Dyeing Ltd sets three years long target to improve environmental performance. It should be
mentioned here that HAMS Washing & Dyeing Ltd was shifted in current potion in 2016 and
production has been starting from April, 2016.
6
Chapter 2
Water Consumption Record
HAMS Washing & Dyeing Ltd has installed water metering system to track & measure total
water consumption from natural resource and wastewater generation from manufacturing of
products. The activities within HAMS Washing & Dyeing Ltd are washing & dyeing. Wet &
Dry both are available. Most of the water is used for washing & dyeing purpose. The source
of water for HAMS Washing & Dyeing Ltd is underground water. The main purpose of water
metering system is; to track & measure total water withdrawal from underground, total water
consumption for production & domestic purpose and the total wastewater generation from
HAMS Washing & Dyeing Ltd.
The water consumption record for production purpose, water consumption in utility section
(boiler), domestic use purpose and the wastewater generation record are presented in table-1:
Table-1: Water consumption record in 2016
Water consumption & Wastewater generation in m3 for HAMS Washing & Dyeing Ltd-2016
Month/Year Use for
Production
Use for
Domestic
Use
for
Utility
Total water
consumption
Wastewater
generation
January
February
March
April 9930.0 9930 8639.1
May 15035.2 15035.2 13080.6
June 28588.9 228 1312 30128.9 26301.8
July 16424.7 211 953 17588.7 15110.8
August 19127.2 281 1301 20709.2 17597.0
September 10532.1 181 794 11507.1 9689.6
October 17172.6 268 1237 18677.6 15798.8
November 12206.8 239 1177 13622.8 11230.3
December 22241.2 258 1145 23644.2 20461.9
Total 151258.7 1666 7919 160843.7 137909.8
HAMS Washing & Dyeing Ltd has been starting production from April, 2016. That’s why
water consumption is not available from January to March. The water record for domestic &
utility use is not also available from April to May due to lack of metering system.
7
Chapter 3
Energy Consumption & GHG Emission Record
In textile, energy is an important component and without this textile industry cannot be
operated. Energy resources are limited and these must be used reasonably and responsibly.
HAMS Washing & Dyeing Ltd mainly uses natural gas & diesel for generating power &
steam. Besides, purchase electricity is also used from REB.
The gas & diesel consumption record and the amount of electricity used from REB are
presented in table-2.
Table-2: Energy consumption record of HAMS Washing & Dyeing Ltd.
Natural gas, diesel & electricity from REB are recorded in cubic meter, litter & KWH
respectively. All of these energy units (m3, litter & KWH) converted to common unit GJ
using the following conversion factors:
Natural Gas: 38.4 MJ/Nm3
Diesel/fuel oil: 43.1 MJ/liter
Electricity (KWH): 3.6 MJ/KWH
Table-3: GHG emission record from HAMS Washing & Dyeing Ltd in 2016
GHG Emission Summery
Year Direct emission (stationery
fuel combustion)
Indirect emission (purchased
electricity consumption) Total in
tCO2e
2016 1951.9 777.4 2729.3
Energy Consumption record in 2016
Month/Year Gas (m3) Diesel (L) Electricity
(KWH)
January 636
February 11448
March 20670
April 3821 111936
May 6095 100329
June 13233 117501
July 7739 142941
August 429403 8668 179670
September 80816 4880 101124
October 172070 7896 217989
November 123630 5737 178716
December 130963 10531 168858
Total 936882 68600 1351818
Total in GJ 35976.3 2956.7 4866.5
8
Chapter 4
The record of Production, waste generation, ETP outlet water quality & sources of air
emission
The production activities of HAMS Washing & Dyeing Ltd is washing & dyeing of finish
garments specially denim. The production record is maintained in pcs but to convert in
weight, every pcs is considered equivalent to 450 gram.
Table-4: Production record for 2016
Solid waste:
Waste is any substance or object which is discarded, intended to be discarded or is required to
be discarded. Waste can include expired raw materials generated from a process for which
there is no further use on-site, expired finished products, process or non-process by-products,
customer returns, redundant equipment, etc.
"A hazardous waste is a waste that could cause harm to public health and/or the environment
because of its chemical, physical or biological characteristics (e.g., it is flammable, explosive,
toxic, radioactive, or infectious). Hazardous wastes that is dangerous or potentially harmful to
our health or the environment. Hazardous wastes can be liquids, solids, gases, or sludge.
They can be discarded commercial products, like cleaning fluids or pesticides, or the by-
products of manufacturing processes. (The U.S. Environmental Protection Agency).
Table-5 presents the amount of solid waste including hazardous & non-hazardous was
generated from HAMS Washing & Dyeing Ltd.
Table-5: Solid waste record in 2016
Year Non Hazardous waste
in kg
Hazardous waste
in kg Total Solid
waste in kg
2016 1311 6507.5 7818.5
Month name Production in Pcs Production in MT
January
February
March
April 584118 262.9
May 939699 422.9
June 2042065 918.9
July 1190199 535.6
August 1346984 606.1
September 752295 338.5
October 1244389 560.0
November 904210 406.9
December 1659788 746.9
Total 10663747 4798.7
9
Hazardous waste:
Iron+Tin+Steel, Aluminum, Broken Glass, Broken tub-light, ETP Sludge, Wastage oil,
Chemical Drum, Medical waste, Poly and plastic bag.
Non Hazardous waste: Cartoon
The solid waste generated from HAMS washing & Dyeing Ltd is segregated with 11 classes.
Only one item was found nonhazardous waste namely cartoon and others are hazardous.
Air Emission Inventory:
Air emission inventory is presented in table-6. Air emission inventory is maintained annually.
The air emission test is conducted by third party annually for HAMS Washing & Dyeing Ltd.
There is no accredited body in Bangladesh for air emission test. That’s why third part air
emission test results are not presented in air emission inventory.
Table-6: Air emission Inventory
S.l.No EMISSION POINT NAME OF POLLUTANTSOURCE/
EQUIPMENT
EMISSION
AMOUNT
(AND UNITS)
LEGAL EMISSION
LIMIT(DoE)
MONITORING
FREQUENCY
1 Diesel Generator-1 NOX Generator N/A200 (mg/Nm3),
DoE StandardAnnual
2 Diesel Generator-1 Sox Generator N/A0.14 ppm 24 hrs &
0.03 ppm annualAnnual
3 Diesel Generator-1 CO Generator N/A9 ppm 8 hrs & 35
ppm 1 hrAnnual
4 Diesel Generator-2 NOX Generator N/A 0.053 ppm annual Annual
5 Diesel Generator-2 SOx Generator N/A
150 mg/Nm3 24
hrs & 50 mg/Nm3
annual
Annual
6 Diesel Generator-2 CO Generator N/A
65 mg/Nm3 24 hrs
& 15 mg/Nm3
annual
Annual
7 Gas boiler SOx Boiler N/A200 (mg/Nm3),
DoE StandardAnnual
8 Gas boiler NOx Boiler N/A0.14 ppm 24 hrs &
0.03 ppm annualAnnual
9 Gas boiler CO Boiler N/A9 ppm 8 hrs & 35
ppm 1 hrAnnual
10
In-house laboratory wastewater test report:
HAMS Washing & Dyeing Ltd. has an in-house ETP laboratory to analysis wastewater
(before & after treatment). Almost all kind of parameter like as COD, BOD, TSS, pH, TDS,
MLSS, SV, SVI, F/M can be analyzed by ETP laboratory. The activity of this laboratory was
started from March, 2016. In table-7, only ETP outlet water test results are presented.
Table-7: ETP outlet water quality test report (In house laboratory)
Date COD in
ppm
BOD in ppm TSS in
ppm
pH
6/4/2016 20 7.3
12/4/2016 60 40 7.7
17/4/16 66 7.3
23/4/16 30 7.5
24/4/16 59 40 7.5
25/4/16 70 30 7.6
26/4/16 65 20 7.5
1/5/2016 30 8 7.5
8/5/2016 20 7.7
21/5/2016 149 35 7.3
19/6/16 122 35 7.35
25/6/16 45 7.7
17/7/16 34 12 7.8
26/7/16 20 7.7
1/8/2016 14 7.8
11/8/2016 20 7.6
18/8/16 35 16 7.9
27/8/16 15 7.7
4/9/2016 12 7.7
21/9/16 10 7.5
2/10/2016 130 40 7.7
9/10/2016 68 26 20 7.8
19/10/16 11 7.4
7/11/2016 17 10 7.2
22/11/16 17 7 7.6
3/12/2016 40 6 7.5
18/12/16 17 10 20 7.7
11
Chapter 5
Target Setting & Action Plan
HAMS Washing & Dyeing Ltd. sets target to improve environmental performance as well as
reduce energy & water consumption. The concern authority review improvement against
target annually and take corrective action plan to achieve target.
Energy
Target Name 5% energy consumption reduction for
per ton production
Target Type Normalized
Base year 2016
Target Start date 01/01/2017
Target End Year 31/12/2019
% Reduction from base year N/A
Metric for Normalized targets per ton of production
Base year consumption amount 9.1GJ
The current reporting period's normalized
energy consumption amount
N/A
Water
Target Name 10% Water consumption reduction for
per ton production
Target Type Normalized
Base year 2016
Target Start date 01/01/2017
Target End Year 31/12/2019
% Reduction from base year N/A
Metric for Normalized targets per ton of production
Base year consumption amount 31.5 m3
The current reporting period's normalized
energy consumption amount
N/A
Chemical management
Target Name Achieve 80% score in chemicals
management performance in self-
assessment module
Target Type Absolute
Base year 2016
Target Start date 01/01/2017
Target End Year 31/12/2018
% increase chemicals management
Performance score from base year
N/A
Metric for Absolute targets Total score in self-assessment module
Base year score 49%
The current reporting period's score N/A
12
Action Plan:
Energy:
Hot water/Condensate Recovery:
Projection Time: 2017-2018.
If 1 ton/h of steam is supplied to equipment for a heating process, then the same amount of
condensate (1 ton/h) needs to be discharged from the equipment. Condensate recovery is a
process to reuse the water and sensible heat contained in the discharged condensate.
Recovering condensate instead of throwing it away can lead to significant savings of energy,
chemical treatment and make-up water. Reusing hot condensate can lead to considerable
savings in terms of energy and water resources, as well as improve working conditions and
reduce your plant's carbon footprint. Condensate contains a significant amount of sensible
heat that can account for about 10% to 30% of the initial heat energy contained in the steam.
Feeding the boiler with high-temperature condensate can maximize boiler output because less
heat energy is required to turn water into steam. When efficiently recovered and reused, it can
even be possible to reduce boiler fuel needs by up to 10 to 20%.
Theoretically one m3 water is required to produce one ton steam. HAMS Washing & Dyeing
Ltd has a NG boiler with the capacity of 5.5 ton per hour. Presently this boiler is being
operated with at 70% load of their capacity. Steam is used mainly in washing & drying. It is
assume that around 65% steam is used for washing and 35% is used for drying section. At
present steam condensate from drying section is drained out. However, this condensate will
be recovered to feed water tank that use to pre heat the boiler again up to 90-920c.
Upgrade generator monitoring to electrical power management control system
Projection Time: 2017 to 2018
The present generator monitoring provides too little information for monitoring their
performance. Fortunately a better generator monitoring system is available. However even
this system can be improved and extended as to include real-time diesel consumption and
overall generator efficiency along with the complementing power consumption from the grid.
By installing an electricity measuring system for generator and by upgrading this monitoring
system to calculate effective efficiency at varying load and adding automatic modulating
controls a true electrical power management system can be realized automatically control all
generators which switches the generators on/off according to demand and optimizes the
production of each generators as to achieve maximum the overall efficiency while
minimizing the total cost of power consumption including grid and stand-by diesel
generators.
Install solar panel:
Projection Time: 2017 to 2019
13
The authority of HAMS Washing & Dyeing Ltd has a planned to use solar panel for lighting
purpose to save energy as well as reduce carbon foot print for entire factory. Already a solar
panel has been installed which capacity is 2.5 KW.
Use LED & Energy saving Light:
Projection time: 2016
All lights of entire factory of HAMS Washing & Dyeing Ltd are LED & energy saving light.
The authority of HAMS Washing & Dyeing Ltd uses LED & energy saving light for lighting
purpose to save energy as well as reduce carbon foot print.
Replacing conventional boiler with energy saving boiler including economizer:
Projection time: 2017
Previously, HAMS washing & Dyeing used a conventional boiler which consumed more fuel
to generate steam. The authority of HAMS Washing & Dyeing Ltd decided to replace this
conventional boiler with a modern boiler which has economizer & others energy saving
accessories. Inserting an economizer in the flue gas outlet of the steam boilers as to preheat
the boiler feed water would save about 2.7% on the fuel consumption for steam production.
Around 30% less energy is consumed by new modern boiler to produce similar amount of
steam compare to old boiler.
Water:
Rain Water Harvesting
Projection Time: 2017 to 2018. HAMS Washing & Dyeing Ltd has a plan for rainwater
harvesting on roof top area of the shads & buildings. Table-8 presents the roof top area of the
shads & buildings with the annual volume of rainfall. From figure-1, it can be seen that the
lowest annual rainfall is 4.4 mm in January and the maximum annual rainfall is 388.5 mm in
July. In average, at Dhaka & Gazipur region, the annual rainfall is 1960 mm from 2001 to
2015.
Figure-1: Monthly averages of Rainfall & Humidity data at the Dhaka & Gazipur region
(From Dhaka BMD Station), 2001-2015. Source: Bangladesh Meteorological Department
14
Table-8: Roof top area of the shads & buildings with the yearly volume of rainfall
Building/shad Area in m2 Annual average
rainfall in mm
Volume of rainfall
(Annual) in m3
Main Building 4673
1960
9159
Chemical store room 576 1129
Total 5249 10288
http://www.calctool.org/CALC/other/default/rainfall(this tool use to convert rainfall in mm to
rainfall in m3 considering roof top area)
From table-8 it can be seen that, HAMS Washing & Dyeing Ltd can use approximately
10288 m3 water annually from rainwater harvesting instead of using from ground water.
According to figure-1, the maximum possible rainfall is 388 mm (4817 m3 for area of
12415.35 m2) in July throughout the year.
Using Water Efficient Equipment
Projection time: 2017
Water consumption for production purpose can be saved by replacing outdated equipment
with modern machines which operate at low liquor ratio. HAMS washing & Dyeing Ltd has
26 washing machines which operate with 1:9 liquor ratio. The authority of HAMS washing &
dyeing ltd has planned to install 10 Brongo-L4200 washing machines which operate with low
liquor ratio (1:5). Two Brongo-L4200 washing machines have already been installed and 8
more Brongo-L4200 washing machines will be installed by May, 2017. At least 35% less
water is consumed by Brongo-L4200 washing machine compare to existing washing
machine.
Reuse Blower cooling water:
Projection Time: 2017 to 2018
HAMS Washing & Dyeing Ltd has a biological ETP with the capacity of 2000 m3 per day.
Continuous aeration is necessary for biological ETP and aeration is provided by blower.
Three blowers are running simultaneously in ETP and these blowers are needed to be cooled
by supplying soft water. For this purpose, around 35 m3 water per day is required. HAMS
Washing & Dyeing Ltd has planned to save 35m3/day
water by reuse blower cooling water.
Awareness & Monitoring
Projection time: 2017 to 2018
The significant amount of water consumption for dyeing & washing section can be saved by
monitoring & creating awareness.
15
Turn off Running Taps and Hoses
This simple procedure can result in substantial savings. People are often unaware of the cost
of leaving taps and hoses running. They are more likely to turn off running taps and hoses if
they are made aware of the annual cost of waste. Meanwhile, fixing hand triggers to hoses is
a simple way of reducing water use and saving money.
Turn off Water when Machines are not running.
Encourage workers to turn off machines and water during breaks and at the end of the day.
Avoid circulating cooling water when machines are not in use. The concern department of
HAMS Washing & Dyeing Ltd has been working to formulate & implement an integrated
Environmental Management System (EMS). A relevant program for creating awareness &
monitoring regarding water consumption will be included of that EMS.
Improve chemicals management performance:
The concern authority of HAMS Washing & Dyeing Ltd. committed to:
Continual improvement of chemical management performance
Expand win of economic, environmental, safety & health and organizational benefits
through implementing systematic management of chemicals
Complying with national legislation and conforming to emerging customer
requirements and international standards on management of chemicals
strengthening in-house competence of personnel in companies (workers, middle
management), integrating CM training into in-house training units
enabling EHS managers/officers and company personnel concerned with handling of
chemicals in textile companies to improve the condition of chemical management in
the factory
The chemical management system will be formulated and it will work through Plan-Do-
Check-Act framework. The following jobs will be conducted through Plan-Do-Check-Act
framework to establish an appropriate chemical management system:
Maintaining legal register including National and other laws and regulations
Systematically identify and document chemicals used and stored
Material flow accounting; Process flow diagram, Chemical trajectory & NPO
identification
Maintaining Chemical inventory
Chemical risk analysis
Hazard & risk mapping
Chemical risk management action; Training, Document Development, Document and
Record Control,
Chemical Management Work Practices & Emergency Procedures; Exposure control
measures, Safety data sheet management(procedure for making SDS available),
Chemical handling( procedure for SOP development, format), Chemical storage in
well design store, Chemical transportation, Chemical use –Regular and optimization,
Personal protective equipment (procedures for selection, use, maintenance),
Laboratory practices, Maintenance and housekeeping, Waste and disposal.
16
Chapter 6
Conclusion
The total washing production (MT), water (m3) & energy (GJ) consumption for production
and wastewater (m3) generation in 2016 of HAMS Washing & Dyeing Ltd. are presented in
table-9.
Table-9: Production, water & energy consumption and wastewater generation record of
HAMS washing & dyeing Ltd. in 2016
Year 2016
Washing production(MT) 4798.7
Water consumption(m3) 151258.7
Waste water(m3) 137909.8
Energy consumption(GJ) 43799.5
Figure-2: presents the production, water & energy consumption and wastewater generation of
HAMS washing & dyeing Ltd in 2016
Table-10: Base year water & energy KPI for per ton production
Year Base year 2016 Target year 2018
Water consumption (m3) 31.5 Reduce by 10% from base year
Energy consumption (GJ) 9.1 Reduce by 5% from base year
………………
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Authority