TA11B Modeling of Recycling and Waste Management
C123
8:00 AM - 12:00 PM, Tuesday
() Worldwide recycled aluminium supply and environmental model.
Martchek, Kenneth1, 1 Alcoa, Pittsburgh, PA, USA
ABSTRACT- A quantitative tool has been developed to forecast the amount of aluminium demand that might be satisfied from recycling to offset the need for additional primary aluminium production and its associated consumption of natural resources. The model provides an understanding of worldwide aluminium recycling flows based on regional and global statistics of primary and scrap aluminium processing, anticipated future market demands, and variables such as average product durations (life cycle assumptions), collection efficiencies and recovery rates. The model permits investigations of the sensitivities of changes in scrap collection, recycle rates, and product lifetimes on the worldwide supply system. The model has also been used to identify gaps in recycling data and areas of greatest potential for increased recycling and reduced environmental effects. The model has recently been utilized to examine the potential impact of aluminum recycling and product lifetime assumptions on the greenhouse gas implications of the global aluminum industry through year 2020.
Key words: Recycling, Greenhouse, Life Cycle, Aluminium