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Recently, the chairman of the board of directors and his party visited Hainan Academy of Environmental Protection Sciences and had in-depth discussions and exchanges with Vice President Wang Licheng and director Qian Yibin of the solid waste management center on Hainan environmental protection projects and high and new technologies. The project of "plasma vitrification of fly ash" was established.

Fly ash refers to the tiny ash particles discharged during combustion. As the fly ash contains dioxins, CD, Pb, Cu, Zn, Cr and other harmful heavy metal substances and salts which can be leached by water with high concentration, the fly ash from MSW incineration and hazardous waste incineration is listed in the national hazardous waste list and belongs to hazardous waste. It is difficult to treat fly ash thoroughly. The final solution of fly ash disposal is to form glass body by high temperature melting.