Factors Controlling Leaching Behavior of Fly Ash

摘要

The fly ash collected from the Yangxin electric power plant of Huangshi, Hubei province, the YangLuo electric power plant of Wuhan and Qinshan electric power plant of Wuhan was used for our leaching experiments. The leachates of fly ash were analyzed for as and other 11 elements at the liquid to solid (L/S) ratio of 20:1 under different pH, temperature conditions and for different reaction time. The same element under different conditions and the different elements on same condition have all shown distinctive characters. The results showed that as compared to temperature and time, pH has more impact of the concentration of element of leachates.