Life Cycle Inventory Survey

The information on this page is needed for administrative control and will not be used in processing your responses.

This information is stored separately from the rest of the questionnaire data to maintain data confidentiality.

1. Name of Reporting Operation/Facility:

2. If your operation is commonly known by another name please enter it here:

3. Operation Ownership Details:

4. Mailing Address:

5. Name of Reporting Person (Principal Contact):

6. Job Title:

7. Mailing Address (if different from above):

8. Telephone Number:

9. Fax Number:

10. Email Address:

11. Can this plant data also be made available to the relevant regional aluminium industry association?

For further information please contact Linlin WU, IAI Manager Statistical Analysis on (44) 20 7930 0528.

Page 1 Introduction

IAI LCI Survey

1. Production Data 2. Water Data

1.1. Shipped Bauxite tonnes 2.1. Total fresh water input m32.4. Total sea water discharge (Optional) m3

Please submit data that relates to the mine Output of sea or briny/brackish water

1.1.1. Average percentage of % alone, and not to the mine plus refinery etc.

aluminium in bauxite by weight Include industrial water which is to be used

for sanitary or industrial installations, and

1.1.2. Average percentage of % of non-contact cooling water which is used

moisture in bauxite, as shipped for energy transfer (cooling or heating) kept

by weight (Optional) in separate network from the industrial

water.

2.1.1. Of which, groundwater (Optional) m3

2.1.2. Of which, surface water (Optional) m3

2.2. Total sea water input (Optional) m3

Please submit data for the mine alone, and

not for mine plus refinery etc

Input of sea or briny/brackish water

2.3. Fresh water discharge

Including rainwater and polluted water

2.3.1. Total fresh water discharge m3

2.3.2. Of which, discharged to the ocean m3

(Optional)

It is assumed that the balance is discharged

as surface water to rivers or lakes

Page 1 Mining

IAI LCI Survey

3. Air Emissions Data 4. Solid industrial waste 5. Land Use Data

3.1. Particulates tonnes 4.1. Any solid industrial waste external 5.1.1. Total area disturbed since mining km2

Total emission of organic and inorganic disposal - Please specify type and began, to the end of 2010.

particulate matter or dust (after waste quantity (Optional)

air treatment) from plants and Examples of solid industrial waste 5.1.2. Type of disturbed land:

installations or caused by processes, include waste from mining operations forest %

activities and use. such as wood, debris, asphalt etc arable %

Particulate matter emissions should be wasteland %

based on measurements. If estimated, 4.1.1. Of which, hazardous waste, tonnes

please specify the method used (e.g. according to local legislation 5.1.3. Average annual area disturbed km2

representative point measurements). over the 5 years to the end of 2010

Particulate emissions from :

- mixing and milling installations 5.2. Area physically mined in 2010 km2

- dryers, silo storage

- belt conveyors, conveying installations 5.3. Does rehabilitation of the mined yes

- filling and refilling for solids area take place? no

Emissions from the combustion of fuel

should not be included (will be determined 5.3.1. Total area rehabilitated since km2

via emission factors) mining began and to the end of 2010

5.3.2. Type of rehabilitated land:

forest %

arable %

wasteland %

industrial %

5.3.3. Area rehabilitated in 2010 km2

5.3.4. Average annual area rehabilitated km2

over the 5 years to the end of 2010

Page 2 Mining

IAI LCI Survey

6. Energy Data 7. EHS Management

6.1. Heavy fuel oil input kg 7.1. Is there any formal and documented

Please note units EHS Management System in place? yesUsed for direct heating and for self- no

generated electricity 7.2. Is it certified by ISO 14001?

6.2. Diesel/petrol input kg 7.3. Is it certified by OHSAS 18000?

Please note units

Used for direct heating, excavators, 7.4. Is there a Hazard Identification,

transport and for self-generated electricity Risk Assessment, Risk Control (HIRARC)

and Employee Health Assessment

6.3. Coal kg Programme?

Please note units

Used for direct heating and for self- 7.5. Are there at least 2 ongoing health

generated electricity -related community initiatives?

6.4. Gas m3

Used for direct heating and for self-

generated electricity

6.5. Other fuel used for direct heating

and for self-generated electricity.

Please give fuel type and quantity

6.6. Purchased electricity kWh

Page 3 Mining

IAI LCI Survey

1. Production Data 2. Water data

1.1. Smelting grade Al2O3 (dry) tonnes 2.1. Fresh water input m3 This water typically is not polluted

Including industrial water which is to be used

1.2. Output sold as hydrate tonnes for sanitary or industrial installations, and non- 2.3.4. Of which, from other uses - treated m3

Al(OH)3 contact cooling water which is used for energy Discharge (output) water from uses other

transfer (cooling or heating) kept in separate than in cooling (2.3.3) which is polluted by

1.3 Average bauxite transport km network from the industrial water. sanitary or process installations and which

distance Mine to Refinery Not including water input from desalination; is treated in an own or external treatment

Specify total tonnage transported Desalinated water should be reported to works.

and average transport distance in Question 2.2

2010 2.3.5. Of which, is from other uses - m3

2.1.1. of which, ground water (Optional) m3 untreated 1.3.1 Sea transport tonnes Groundwater pumped from aquifers Discharge (output) of water from uses

km other than in cooling (2.3.3) which is

2.1.2. Of which, surface water (Optional) m3polluted by sanitary or process installations

1.3.2 Road transport tonnes and which is untreated.

km 2.2. Sea water input (Optional) m3

Input of sea or briny/brackish water 2.4. Sea water discharge (Optional) m3

1.3.3 Rail transport tonnes Input of sea or briny/brackish water

km 2.3. Fresh water discharge

Including rainwater

2.3.1. Total fresh water discharge m3

2.3.2.Of which, rain water m3

2.3.3. Of which, from cooling use m3

Discharge (output) of non contact cooling

water used for energy transfer (cooling or

heating) and which is kept in a network

separated from industrial water

Page 1 Refining

IAI LCI Survey

3. Aqueous emissions data 4. Air Emissions Data

3.1. Suspended solids tonnes 4.1. Particulates tonnes from the sulphur content of the raw material or

Do not include bauxite residue. Total emission of organic and inorganic primary energy source used (weight as SO 2 is

particulate matter or dust (after waste air 2x weight of sulphur). If possible, data should 3.2. Oil and grease/total hydrocarbons tonnes treatment) from plants and installations or be substantiated by measurements or material

Oil and grease is the preferred entry. caused by processes, activities and use. balances.

However, if oil and grease information Total particulate matter emissions should be Examples:

is not available then total hydrocarbons based on measurements. Estimates may be used SO 2 emissions from

may be reported. if based on representative point measure. For - combustion processes (boiler house, heating

fugitive emissions other indirect methods may furnaces etc.)

3.3. Mercury kg also be used (e.g. material weight loss) - gas turbines etc.

Please note unit Particulate emissions from : - incineration plants

- special processes - special processes with SO2 emissions

- combustion/incineration plants (boiler

house, waste incinerators etc.) 4.2.1. Method used in estimation (Optional)

- mixing and milling installations

- dryers, silo storage 4.3. Nitrous oxides (NOx, as NO2)

- belt conveyors, conveying installations Emissions of nitrogen oxides (NOx) from

- filling and refilling for solids combustion/ incineration processes and other

relevant NOx emitting processes (after waste

4.1.1. of which, particles smaller than 2.5 μm tonnes air treatment). If not continuously measured, NOx

(Optional) emissions are to be calculated from the specifications of

the plant and relevant operating conditions

4.1.2. Method used in estimation (Optional) (duration of operation, fuel consumption

burner types, etc.).4.2. Sulphur dioxide (SO2) tonnes If possible, data or emission factors should be

From combustion/ incineration processes and substantiated by measurements

other relevant SO 2 emitting processes (after Examples: NOx emissions from

waste air treatment) Please note, if not - combustion processes (boiler house, heating

measured, SO 2 smissions are to be calculated furnaces etc.)

Page 2 Refining

IAI LCI Survey

(Air Emissions Data Continues) 5. Solids Data

- gas turbines etc. Input 5.6. Please give details of any other

- incineration plants 5.1. Bauxite tonnes by-products recycled

- special processes with NOx emissions 5.2. Sodium hydroxide used tonnes 5.6.1. Specify recycling process

4.3.1. Method used in estimation (Optional) As 100% caustic soda

5.7. Any other solid industrial waste

4.4. Mercury (Optional) kg 5.3. Calcined lime used Please specify type and quantity tonnes

Please note unit 5.3.1. Purchased lime tonnes Include for example, oxalate, scalings,

plant wastes etc.

5.3.2. Lime produced (calcined) tonnes

on-site 5.7.1 Of which, any other landfill tonnes

As calcined lime and NOT limestone wastes

Output 5.7.2. Of which, hazardous waste, tonnes

5.4. Bauxite residue recycled tonnes according to local legislation

externally

Dry tonnage

5.4.1. Specify recycling process

5.5. Bauxite residue deposited

5.5.1. Treated deposition tonnes

5.5.1.1. Please give details of the treatment method used (Optional)

e.g. sea water, CO2 treatment, slurry

density

5.5.2. Untreated deposition tonnes

Page 4 Refining

IAI LCI Survey

6. EHS Management 7. Bauxite Residue Storage

6.1. Is there any formal and documented 7.1. Total volume of bauxite m3

EHS Management System in place? yes residue deposited in 2010

no6.2. Is it certified by ISO 14001? 7.2. Total Alumina tonnes

Production since operation

6.3. Is it certified by OHSAS 18000? commenced

6.4. Is there a Hazard Identification, 7.3. Land area utilised to km2

Risk Assessment, Risk Control(HIRARC) store bauxite residue since

and Employee Health Assessment operation commenced

Programme?

7.4. Total surface area of km2

6.5. Are there at least 2 ongoing health residue storage area (RSA)

-related community initiatives?

7.5. Surface area of RSA that km2

has been converted to

productive and sustainable

land use

Page 5 Refining

IAI LCI Survey

Please report data for electrolysis only, excluding other processes such as anode/paste production and casting.

If reported data is from multiple processes, please specify in a comments box when entering the data.

1. Aluminium Production Data 2. Water Data

1.1. Centre-worked pre-bake tonnes 2.1. Fresh water input m3

Discharge of water from uses other than

production (CWPB) Not including water input from desalination cooling (in 2.3.3) that is polluted by

Desalinated water should be reported to sanitary or process installations and

1.2. Side-worked pre-bake tonnes Question 2.2 which is treated in an own or external

production (SWPB) treatment works

2.1.1. Of which, ground water (Optional) m3

1.3. Vertical stud Soderberg tonnes Groundwater pumped from aquifers 2.3.5. Of which from other uses m3

production (VSS) - untreated

2.1.2. Of which, surface water (Optional) m3Discharge of water from uses other than

1.4. Horizontal stud Soderberg tonnes cooling (in 2.3.3) which is polluted by

production (HSS) 2.2. Total sea water input (Optional) m3

sanitary or process installations and

Input of sea or briny/brackish water which is untreated.

1.5. Average alumina transport km

distance refinery to smelter 2.3. Fresh water discharge 2.4. Sea water discharge (Optional) m3

Specify total tonnage transported including rainwater Input of sea or briny/brackish water

and average transport distance in 2.3.1. Total fresh water discharge m3

2010

2.3.2. Of which, from rainwater m3

1.5.1. Sea transport tonnes

km 2.3.3. Of which from cooling use m3

Discharge of non-contact cooling water

1.5.2. Road transport tonnes used for energy transfer and which is

km kept in a network separated from

industrial water

1.5.3. Rail transport tonnes This water typically is not polluted

km

2.3.4. Of which, from other uses m3

- treated

Page 1 Electrolysis

IAI LCI Survey

3. Aqueous Emissions Data 4. Air Emissions Data

3.1. Suspended solids tonnes 4.1. Particulates tonnes of the raw material or fuel used

Discharge of suspended solids. Total emission of organic and inorganic (weight as SO 2 is 2x weight of sulphur).

particulate matter or dust (after waste air If possible, data should be substantiated by

3.2. Fluorides (as F) tonnes treatment) from plants and installations or measurements or material balances.

Discharge of soluble fluorides. caused by processes, activities and use. Examples of SO 2 emissions include from:

Total particulate matter emissions should be - combustion processes

3.3. PAH (6 Borneff components) kg based on measurements. Estimates may be - incineration plants

Please note units. used if based on representative point measure. - special processes (including electrolysis)

Discharge of Polycyclic Aromatic For fugitive emissions other indirect methods with SO 2 emissions

Hydrocarbons, in dissolved or particulate may also be used (e.g. material weight loss).

form, including PAH contained in rain water. Examples include particulate emissions from: 4.3. Particulate Fluoride tonnes

PAH discharge to water should include the - special processes (including electrolysis) Emissions of particulate fluorides in dust from

arithmetic sum of the 6 Borneff components: - combustion/incineration plants both stack and roof vents. This value should be

fluoranthene, benzo(b k)fluoranthene, - mixing and milling installations related to the annual aluminium production. It

benzo(a)pyrene, dibenzo(ghi)perylene, - dryers, silo storage should be determined according to the

indeno(1,2,3-cd)pyrene. - belt conveyors, conveying installations procedure as agreed upon by the local

- filling and refilling for solids authorities. Particulate fluorides are part of

3.4. Oil and grease/total hydrocarbons tonnes total particulate matter emitted from fluoride

Oil and grease is the preferred entry. 4.1.1. of which, particles smaller than 2.5 μm tonnes sources and normally measured by analyzing

However, if oil and grease information is (Optional) fluoride in particulate samples.

not available then total hydrocarbons

may be reported. 4.2. Sulphur dioxide (SO2) tonnes 4.4. Gaseous fluoride (HF) tonnes

Emissions of sulphur dioxide (SO 2 ) from Emissions of hydrogen fluoride (after waste

combustion/ incineration processes and air treatment) from both stack and roof vents.

other relevant SO 2 emitting processes (after This value shall be related to the annual

waste air treatment). aluminium production. It should be determined

Please note, if not measured, SO 2 emissions according to the procedure as agreed upon by

are to be calculated from the sulphur content the local authorities, especially for roof vent

Page 2 Electrolysis

IAI LCI Survey

(Air Emissions Data Continues)

emissions. The preferred method is continuous anodes) determined in closely similar emission factors (per tonne of aluminium or

or frequent direct measurement using relevant installations using the same technologies anodes) determined in closely similar

international or national standards. Indirect may be used as default factors. installations using the same technologies may

methods, e.g. derived from collection rate Several conventional lists of PAHs exist be used as default factors.

measurement, may be used when reliable according to the local regulations or standards.

direct measurement of roof vent emissions is PAH emission to air should include as a 4.7. Nitrous oxides(NOx, as NO2) tonnes

not feasible. minimum the arithmetic sum of phenantrene, Emissions of nitrogen oxides (NOx) from

Other forms of fluorinated gaseous components anthracene, fluoranthene, pyrene, combustion/ incineration processes and other

such as PFCs are not to be included. benzo(a)anthracene, chrysene, relevant NOx emitting processes (after waste

benzo(b k)fluoranthene, benzo(a)pyrene, air treatment).

4.5. Total PAH tonnes dibenzo(ghi)perylene, dibenzo(ah)anthracene, If not measured, NOx emissions are to be

Emissions of Polycyclic Aromatic Hydrocarbons indeno(1,2,3-cd)pyrene. Naphtalene (2 rings) calculated from the specifications of the plant

components in particulate and gaseous form. is not to be reported under the PAH heading. and relevant operating conditions (duration of

It should be determined according to the operation, consumption or primary energy,

procedure as agreed upon by the local 4.6. B(a)P kg burner types, etc.).

authorities. It should include emissions from Please note units If possible, data or emission factors should be

Soderberg pots (including roof vent emissions), Emissions of benzo(a)pyrene which is one substantiated by measurements

and paste plants particular PAH able to trace the total emissions Examples:

The preferred method is frequent direct of carcinogenic PAH components. It should be NOx emissions from

measurements using relevant international or determined according to the procedure as - combustion processes

national standards. Indirect methods, e.g. agreed upon by the local authorities. It should - gas turbines etc.

through surrogate measurements (tars, POM, include emissions from Soderberg pots - incineration plants

B(a)P see hereafter) may be used when (including roof vent emissions), and paste Plants - special processes (including electrolysis) with

conversion factors have been accurately Only direct and frequent measurements of NOx emissions

determined for each installation and are B(a)P using relevant international or national

periodically reviewed. standards can be accepted but measurement

When measurements are not available, of the particulate fraction only is acceptable.

emission factors (per tonnne of aluminium or When measurements are not available,

Page 3 Electrolysis

IAI LCI Survey

5. Solid materials Data

Input 5.11. Refractory material that is not recycled, tonnes 5.12.3. Total SPL for external recycling tonnes

5.1. Alumina tonnes excluding spent pot lining, SPL (Optional)

Includes refractory residues obtained from

5.2. Cathode carbon tonnes spent linings of transport crucibles, which may 5.12.3.1. Of which, is carbon (first) cut tonnes

be contaminated by contact with liquid metal SPL

5.3. Aluminium fluoride tonnes and cryolite

5.12.3.2. Of which, is refractory (second) tonnes

5.4. Steel tonnes 5.12. Spent Pot Lining, SPL cut

SPL from normal operations 5.12.1 - 5.12.5

5.5. Refractory material tonnes SPL from closed pot lines 5.12.6 5.12.4. SPL deposited tonnes

Carbon and refractory residues obtained

Output from dismantling spent linings of pots, 5.12.4.1. Of which, is treated deposited tonnes

5.6. Waste alumina tonnes contaminated by impregnation of electrolysis SPL (Optional)

bath (cryolite) and liquid metal. Carbon

5.7. Waste carbon or mix tonnes and refractory residues are to be reported 5.12.4.2. Of which, is untreated deposited tonnes

Waste carbon or waste mixture of carbon/ separately SPL (Optional)

cryolite /alumina, usually obtained from

dust filtration or precipitation, anode butts 5.12.1. What is the total SPL from normal tonnes 5.12.5. SPL Stored from nomal operation tonnes

cleaning , sweeping , pot or baking furnace operations? (Optional)

operations in aluminium smelters.

5.12.2. Is the SPL split into first (carbon) 5.12.6. Is there any SPL from closed pot

5.8. Steel tonnes and second (refractory) cuts? (Optional) Yes lines?

(if No, skip to Question 5.12.3.) No (if No, skip Questions 5.12.6.1. - 5.12.6.4.)

5.9. Scrubber sludges tonnes

5.12.2.1. SPL carbon (first) cut tonnes 5.12.6.1. Total SPL from closed pot lines tonnes

5.10. Refractory material for external tonnes

recycling, excluding spent pot lining, SPL 5.12.2.2. SPL refractory (second) cut tonnes 5.12.6.2. Of which, is recycled externally. tonnes

(Optional) (Optional)

Page 4 Electrolysis

IAI LCI Survey

(Solid materials Data Continues) 6. EHS Management

5.12.6.3. Of which, is deposited. (Optional) tonnes 6.1. Is there any formal and documented

EHS Management System in place? yes5.12.6.3.1. Of which, is treated deposited tonnes no

SPL (Optional) 6.2. Is it certified by ISO 14001?

5.12.6.3.2. Of which, is untreated tonnes 6.3. Is it certified by OHSAS 18000?

deposited SPL (Optional)

6.4. Is there a Hazard Identification,

5.12.6.4. SPL Stored from closed pot lines tonnes Risk Assessment, Risk Control(HIRARC)

(Optional) and Employee Health Assessment

Programme?

6.5. Are there at least 2 ongoing health

-related community initiatives?

Page 5 Electrolysis

IAI LCI Survey

Please report data for anode/paste production only. If reported data is from multiple processes, please specify in a comments box when entering the data.

1. Production data 2. Water data

1.1. Baked anode production on site tonnes 2.1. Fresh water input m3cooling (in 2.3.3) that is polluted by

Not including water input from desalination. sanitary or process installations and

1.2. Paste production on Site tonnes Desalinated water should be reported to which is treated in an own or external

Question 2.2 treatment works.

1.3. Green anode production on Site tonnes

for sale 2.1.1. Of which, ground water (Optional) m32.3.5. Of which, from other uses - m3

Groundwater pumped from aquifers untreated

Discharge of water from uses other than

2.1.2. Of which, surface water (Optional) m3cooling (in 2.3.3) which is polluted by

sanitary or process installation and

2.2. Sea water input (Optional) m3which is untreated.

Input of sea or briny/brackish water

2.4. Sea water discharge (Optional) m3

2.3. Fresh water discharge Input of sea or briny/brackish water

including rainwater

2.3.1. Total fresh water discharge m3

2.3.2. Of which from rainwater m3

2.3.3. Of which, from cooling use m3

Discharge of non-contact cooling water

used for energy transfer and which is

kept in a network separated from

industial water.

This water typically is not polluted

2.3.4. Of which from other uses - m3

treated

Discharge of water from uses other than

Page 1 Anode Production

IAI LCI Survey

3. Aqueous emissions data 4. Air emissions Data

3.1. Suspended solids tonnes 4.1. Particulates tonnes calculated from the sulphur content of the

Discharge of suspended solids Total emission of organic and inorganic raw material or primary energy source

particulate matter or dust (after waste used (weight as SO 2 is 2x weight of sulphur).

3.2. Fluorides (as F) tonnes air treatment) from plants and Examples:

Discharge of soluble fluorides. installations or caused by processes, SO 2 emissions from

activities and use. - combustion processes

3.3. PAH (6 Borneff components) kg Total particulate matter emissions should - gas turbines etc.

Please note units be based on measurements. Estimates - incineration plants (solid or liquid waste,

Discharge of Polycyclic Aromatic may be used if based on representative waste air, sludge incineration plants)

Hydrocarbons, in dissolved or particulate point measurements. For fugitive - special processes

form, including PAH contained in rain emissions other indirect methods may with SO 2 emissions

water. PAH discharge to water should also be used (e.g. material weight loss).

include the arithmetic sum of the 6 e.g. Particulate emissions from : 4.3. Particulate fluoride tonnes

Borneff components: fluoranthene, - special processes Emissions of particulate fluorides in dust from

benzo(b k)fluoranthene, benzo(a)pyrene, - combustion/incineration plants both stack and roof vents. This value should be

dibenzo(ghi)perylene, indeno(1,2,3-cd) - mixing and milling installations related to the annual production. It should be

-pyrene - dryers, silo storage determined according to the procedure as agreed

- belt conveyors, conveying installations upon by the local authorities. Particulate fluorides

3.4. Oil and grease/Total hydrocarbons tonnes - filling and refilling for solids are part of total particulate matter emitted from

Oil and grease is the preferred entry. fluoride sources and normally measured by

However, if oil and grease information is 4.1.1. of which, particles smaller than 2.5 μm tonnes analyzing fluoride in particulate samples.

not available then total hydrocarbons (Optional)

may be reported. 4.4. Gaseous fluoride (HF) tonnes

4.2. Sulphur dioxide (SO2) tonnes Emissions of hydrogen fluoride (after waste

Emissions of sulphur dioxide (SO 2 ) from air treatment) from both stack and roof vents.

combustion/ incineration processes and This value shall be related to the annual aluminium

other relevant SO 2 emitting processes production. It should be determined according to

(after waste air treatment). the procedure as agreed upon by the local

If not measured, SO 2 emissions are to be authorities, especially for roof vent emissions

Page 2 Anode Production

IAI LCI Survey

(Air emissions Data Continues)

The preferred method is continuous emission factors (per tonnne of aluminium or factors (per tonne of aluminium or anodes)

or frequent direct measurement using relevant anodes) determined in closely similar determined in closely similar installations using

international or national standards. Indirect installations using the same technologies may the same technologies may be used as default

methods, e.g. derived from collection rate be used as default factors. factors.

measurement, may be used when reliable Several conventional lists of PAHs exist

direct measurement of roof vent emissions is according to the local regulations or standards. 4.7. Nitrous oxides (NOx, as NO2) tonnes

not feasible. PAH emission to air should include as a minimum Emissions of nitrogen oxides (NOx) from

Other forms of fluorinated gaseous the arithmetic sum of phenantrene, anthracene, combustion/ incineration processes and other

components such as PFCs are not to be fluoranthene, pyrene, benzo(a)anthracene, relevant NOx emitting processes (after waste

included. chrysene, benzo(b k)fluoranthene, benzo(a)pyrene, air treatment).

dibenzo(ghi)perylene, dibenzo(ah)anthracene, If not measured, NOx emissions are to be

4.5. Total PAH tonnes indeno(1,2,3-cd)pyrene. Naphtalene (2 rings) is calculated from the specifications of the plant

Emissions of Polycyclic Aromatic Hydrocarbons not to be reported under the PAH heading. and relevant operating conditions (duration of

components in particulate and gaseous form. operation, consumption or primary energy,

It should be determined according to the 4.6. B(a)P kg burner types, etc.).

procedure as agreed upon by the local Please note units If possible, data or emission factors should be

authorities. It should include emissions from So- Emissions of benzo(a)pyrene which is one substantiated by measurements.

derberg pots (including roof vent emissions), particular PAH able to trace the total emissions Example NOx emissions incldue from

paste or green anode plants and anode baking of carcinogenic PAH components. It should be - combustion processes

furnaces. determined according to the procedure as agreed - gas turbines etc.

The preferred method is frequent direct upon by the local authorities. It should include - incineration plants

measurements using relevant international or emissions from Soderberg pots (including roof - special processes with NOx emissions

national standards. Indirect methods, e.g. vent emissions), paste or green anode plants

through surrogate measurements (tars, POM, and anode baking furnaces.

B(a)P see hereafter) may be used when Only direct and frequent measurements of B(a)P

conversion factors have been accurately using relevant international or national standards

determined for each installation and are can be accepted but measurement of the

periodically reviewed. particulate fraction only is acceptable.

When measurements are not available, When measurements are not available, emission

Page 3 Anode Production

IAI LCI Survey

5. Solid materials Data

Input with salt, alloying elements or impurities

5.1. Steel tonnes of the melt and that are disposed of in a

method other than by recycling.

5.2. Refractory material tonnes

5.7. Scrubber sludges tonnes

Output

5.3. Carbon waste tonnes 5.8. Other externally recycled by tonnes

Waste carbon or waste mixture of product

carbon/ cryolite /alumina, usually Excluding anode butts

obtained from dust filtration or

precipitation, anode butts cleaning , 5.9. Other landfilled waste tonnes

sweeping , pot or baking furnace

operations in aluminium smelters. 5.9.1 of which, hazardous waste, tonnes

according to local legislation

5.4. Steel to be externally recycled tonnes

5.5. Refractory material that is externally tonnes

recycled

Refractory residues obtained from spent

linings of furnaces, crucibles and launders,

which may be contaminated by contact

with salt, alloying elements or impurities

of the melt, and that are recycled.

5.6. Refractory material that is not tonnes

recycled

Refractory residues obtained from spent

linings of furnaces, crucibles and launders,

which may be contaminated by contact

Page 4 Anode Production

IAI LCI Survey

Please report data for ingot casting process only. If data are reported as combined metrics from multiple processes please confirm as a comment.

1. Production Data 2. Water data

1.1. Cast metal production tonnes 2.1. Fresh water input m32.3.4. Of which is for other uses - m3

Casting of DC cast ingots, ingots Not including water input from desalination treated

for remelting, strip, wire and Desalinated water should be reported to Discharge (output) water from uses

granules Question 2.2 other than in cooling (2.3.3) which is

polluted by sanitary or process

2.1.1. of which, ground water (Optional) m3installations and which is treated in an

Groundwater pumped from aquifers own or external treatment works.

2.1.2. Of which, surface water (Optional) m32.3.5. Of which, is from other uses - m3

untreated

2.2. Sea water input (Optional) m3Discharge (output) of water from uses

Input of sea or briny/brackish water other than in cooling (2.3.3) which is

polluted by sanitary or process

installations and which is untreated.

2.3. Fresh water discharge

including rainwater 2.4. Sea water discharge (Optional) m3

2.3.1. Total fresh water discharge m3Input of sea or briny/brackish water

2.3.2. Of which, from rainwater m3

2.3.3. Of which, is cooling water m3

Discharge (output) of non contact

cooling water used for energy transfer

(cooling or heating) and which is kept

in a network separated from industrial

water

This water typically is not polluted

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IAI LCI Survey

3. Aqueous emissions data

3.1. Suspended solids tonnes 4.1. Chlorine input tonnes 4.5. Sulphur dioxide (SO2) emissions tonnes

Discharge of suspended solids Emissions of sulphur dioxide (SO 2 ) from

4.2 Argon input tonnes combustion/ incineration processes and

3.2. Oil and grease/total hydrocarbons tonnes other relevant SO 2 emitting processes

Oil and grease is the preferred entry. 4.3 Nitrogen input tonnes (after waste air treatment).

However, if oil and grease information If not measured, SO 2 emissions are to be

is not available then total hydrocarbons 4.4. Particulates emissions tonnes calculated from the sulphur content of

may be reported Total emission of organic and inorganic the raw material or primary energy

particulate matter or dust (after waste source used (weight as SO 2 is 2x weight

air treatment) from plants and of sulphur). If possible, data should be

installations or caused by processes, substantiated by measurements or

activities and use. material balances

Total particulate matter emissions Examples of SO 2 emissions include from:

should be based on measurements. - combustion processes melting ,holding

Estimates may be used if based on and homogenization furnaces etc.)

representative point measurements. - special processes with SO2 emissions

For fugitive emissions other indirect

methods may also be used 4.6. Nitrous oxides (NOx, as NO2) tonnes

(e.g. material weight loss). emissions

Examples include particulate emissions Emissions of nitrogen oxides (NOx) from

from : combustion/ incineration processes and

- special processes other relevant NOx emitting processes

- combustion/incineration plants melting (after waste air treatment).

- mixing and milling installations If not measured, NOx emissions are to

- dryers, silo storage be calculated from the specifications of

- belt conveyors, conveying installations the plant and relevant operating

- filling and refilling for solids conditions (duration of operation,

consumption or primary energy, burner

4. Gaseous material and Air Emissions Data

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IAI LCI Survey

5. Solid materials Data

types, etc.).If possible, data or emission Please report materials which enter or linings (excluding spent pot linings) of

factors should be substantiated by leave the cast-house furnaces, crucibles and launders, which

measurements. Input may be contaminated by contact with

Example NOx emissions include from: 5.1. Electrolysis metal tonnes salt, alloying elements or impurities of

- combustion processes (boiler house, the melt, that is recycled

heating furnaces, melting furnaces etc.) 5.2. Remelt ingot tonnes

- gas turbines etc. 5.12. Refractory material for landfill tonnes

- incineration plants (solid or liquid waste, 5.3. External scrap (Optional) tonnes Refractory residues obtained from spent

waste air, sludge incineration plants) linings (excluding spent pot lining) of

- special processes (including electrolysis) 5.4. Alloy additives tonnes furnaces, crucibles and launders, which

with NOx emissions may be contaminated by contact with

5.5. Scrap sold (Optional) tonnes salt, alloying elements or impurities of

4.7. Hydrogen chloride (HCl) emissions tonnes the melt, that is disposed of by a means

5.6. Refractory material tonnes other than recycling.

4.8. Dioxins/furans emissions (Optional) gram Includes furnace linings, filter material,

Please note units glass fibres 5.13. Other casthouse specific wastes tonnes

for landfill

Output

5.7. Dross for external recycling tonnes 5.13.1 Of which, hazardous waste, tonnes

according to local legislation

5.8. Dross for landfill tonnes

5.9. Filter dust for recycling tonnes

5.10. Filter dust for landfill tonnes

5.11. Refractory material for recycling tonnes

Refractory residues obtained from spent

(Gaseous material and Air Emissions Data Continues)

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