1
Compiled by Dr. Joe Herbertson
June 2001
Sustainable Resource
Processing
Australian
Case Studies continued
Comalco: Bell Bay Aluminium smelter (Tasmania)
•dry scrubbing of smelting fumes
•fluoride absorbed into ammonia, and
fluoride rich ammonia reused in smelting process
•95% reduction of ducted F emissions
and 70% of total F emissions
•70% reduction of water
consumption
•50% reduction of aluminum
fluoride
Iluka : Capel Synthetic Rutile Plant (WA)
•integrated heat recovery boiler,
generates 6.5 MWh electricity
•investment of ~ $ 20 million with pay
back of ~ 8 years based on energy savings
•avoided wet scrubbing plant with
estimated investment cost of ~ $ 9 million
Sun Metals: Townsville Zinc Refinery (Queensland)
•environmental controls designed into
the new plant and its construction
•zero waste water to marine
environment
•total containment of stormwater
•double lined storage areas with
leakage monitoring
Ref:.
www.environment.gov.au/epg/environet/eecp/industry; update in July