WORLDWIDE RECYCLED ALUMINUM SUPPLY AND ENVIRONMENTAL IMPACT MODEL

摘要

A quantitative tool has been developed for the Global Aluminium Recycling Committee of the International Aluminium Institute to better describe the past and to better characterize the future mix of primary and recycled global aluminum metal supply. The model provides a better understanding of worldwide aluminum recycling flows by comparing annual regional and global statistics on primary and recycled aluminum processing with anticipated annual recycled aluminum supply predicted on the basis of regional & market product net shipments, average product lives, collection and recovery rates. Furthermore, the model permits investigations of the sensitivities of changes in scrap collection, recovery 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. As an example, the paper will highlight the model's use for examining the potential impact of aluminum recycling and product lifetime assumptions on the greenhouse gas implications of the global aluminum industry through year 2010.