粉煤灰是上海地区一种数量很大的工业废渣,1984年尘市粉煤灰的排放量为124.4万吨,利用了84.3万吨,尚有40万吨灰没有利用。随着国民经济的发展,电力的需求量越来越大,粉煤灰的排放量也将逐年增加,1985年全市粉煤灰的排放量已达到145万吨,预计 Fly ash is a large amount of industrial waste in the Shanghai area. In 1984, dust emissions from fly ash in the dusty city were 1.244 million tons, which accounted for 843,000 tons, and 400,000 tons of ash was not used. With the development of the national economy, the demand for electricity will increase, and fly ash emissions will increase year by year. In 1985, the city’s fly ash emissions have reached 1.45 million tons.