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Content Analysis of Heavy Metals in Fly Ash from One Shanghai Municipal Solid Waste Incineration (MSWI) Plant

The presence of heavy metals in municipal solid waste incineration (MSWI) fly ash is of environmental concern due to their leaching potential in landfill environments. Heavy metal content was performed on fly ash samples from a large-scale municipal solid waste incineration plant in Shanghai China. Content of heavy metals followed the decreasing sequence of Ni > Zn > Pb > Cu > Cd. As pollution of heavy metals is related to not only the content but also their leaching toxicity, further experiment of leaching concentrations of the metals is required to determine the seriousness of pollution caused by the heavy metals.