Prediction of electronic waste amount and metal cumulative amount features

The market supply method is applied to estimate the generation amount of five kinds of obsoleted household appliances, including TV set, washing machine, air conditioner, refrigerator and computer. The amount of metal values contained in is calculated by module analysis. The results show that the generation amount of obsolete household appliances in our country will be in a rapid growth stage, which will be three times higher in 2020 than the value in 2010, and the generation amount will exceed more than 1.8 billion units in 2010~2020. Module analysis results from 2000 to 2020 show that the amount of iron, aluminum and copper in the obsoleted household appliances is in a rapid growth stage; other heavy metals (tin, lead, zinc and cobalt) tend to increase; the precious metal gold shows a trend of increase, silver and palladium grow firstly, then decrease.