Pollutant discharge of melting ash from waste incineration

Mass loss process of fly ash from solid waste incineration was investigated by high temperature TG apparatus. The experiment was performed at the range of 40℃~1400℃ under heating rate of 10℃ /min and N2 atmosphere. Two main mass loss peaks were found at 800℃~1000℃ and 1000℃~1200℃, respectively. Weight loss ingredients and air pollutant were investigated by benchscale experiment. The results shows that emissions of heavy metals and air pollutant in these two temperature spans exceed National Standard, and ash melting must be operated carefully.