PCDD/Fs in Fly Ash from Waste Incineration in China: A Need for Effective Risk Management

摘要

Incineration has gradually become one of the key means to dispose of municipal solid waste (MSW) and hazardous waste (HW) in China. With great concern for emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/ Fs) in incineration flue gas, control standards were further improved and many terminal measures applied to pollution control of flue gas in the country. This resulted in PCDD/Fs being further transformed into fly ash. Based on current disposal and management, however, PCDD/Fs in the fly ash have not been effectively eliminated, and will probably reenter the environment and in turn become a new source of dioxin emission. Therefore, the risks of PCDD/Fs in fly ash should be given importance and management should be strengthened.