Towards Zero Waste

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Plant Operational Overview

• Primary Aluminium Smelter (Alloying on the way)
• Joint Venture between
• Alcoa, Citic (China), Maurabene (Japan)
• Production 360,000 tonnes annually for export
• Largest users of Power in Victoria
• Main Raw Material Alumina from WA
• Employs directly 650 people

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• Cleaner Production
• Waste Management Program
• 1989 - 2004

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Ultimate Resource Utilisation Towards Zero
Waste
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Waste Management
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Waste Management
Target 100
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Cleaner Production

• Waste to Landfill (2003)
• General Waste 20 tonne
• Main Component Packaging Plastic
• ENERGY VALUE Medium to High ( 25 gj/kg)
• Prescribed Waste 80 tonne
• Process Contaminated Bulka Bags and Filters
  Plastic
• RECYCLE POTENTIAL High
• Volume 40 Tonne
• TPH Contaminated General Waste
• ENERGY VALUE Medium ( 15 to 20 gj/kg
• Volume 40 Tonne

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Cleaner Production

• Waste to Energy (2004)
• Spent Potlining Process (Ausmelt Process)
• Developed during 90s to process high volumes of
  Solids Process Waste from Smelting Pots.
• Consumes energy to complete the process
  (Gas/Carbon)
• Convert Non Recyclable By-Product to Energy
• General Waste and Non Reusable Process By
  Products (25 tonne /annum)
• Pelletised for presentation
• Controlled conversion to Energy
• Reduction in external energy sources
• Note ALL PLASTIC RECOVERED RECYCLED
• Cleaned and Presented to Plastic Recycler (APR
  Adelaide)

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Result

• Potential for Ultimate Resource Utilisation by
  the end of (2004)
• Main Items
• Reduction in VOLUMES of By-Products at Source
• Implementation of sustainable Waste Management
  Principles
• Strong sponsorship for CLEANER PRODUCTION
• Utilisation of internal Processes (Energy
  Sources)
• Integration through Operational Systems
• Objective
• No External Secondary Liabilities with Transport
  and Disposal of Regulated Waste