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

Hai Ying Zhang; Guo Liang Yuan; Guo Xian Ma

doi:10.4028/www.scientific.net/AMR.531.292

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 531Analysis of Heavy Metal Leaching in Fly Ash from...

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

Abstract:

The characteristics and leaching behavior of heavy metals in fly ash, sampled from one MSWI (municipal solid waste incineration) plant in Shanghai China, were investigated. The results indicated that the main elements of fly ash were Fe, K, Na, Cl, Si, Ca, Al, and the total fraction of heavy metals was in the range of 0.8 % - 2.0%. Hence, MSWI fly ash was considered to be one kind of hazardous waste due to its potential environmental risk. Leaching toxicity was performed on fly ash samples from the MSWI plant in Shanghai China. Leaching toxicity of the heavy metals by the ALT (available leaching toxicity) procedure exceeded that by the HVEP (horizontal vibration extraction procedure) standard. Leaching concentrations of Ni, Zn, Cd and Pb exceeded the limit of hazardous waste identification standard. Hence, fly ash is a hazardous waste.

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Periodical:

Advanced Materials Research (Volume 531)

Pages:

292-295

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.531.292

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Online since:

June 2012

Authors:

Hai Ying Zhang, Guo Liang Yuan, Guo Xian Ma

Keywords:

Fly Ash (FA), Heavy Metal, Leaching Toxicity, MSWI, Shanghai

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