Source Analysis of Heavy Metals and Arsenic in Organic Fractions of Municipal Solid Waste in a Mega-City (Shanghai)
Resource
Environmental Science and Technology 42 (5): 1586-1593
Journal
Environmental Science and Technology
Journal Volume
42
Journal Issue
5
Pages
1586-1593
Date Issued
2008
Date
2008
Author(s)
Abstract
Heavy metals and arsenic contamination in municipal solid waste (MSW) and its treatment products has garnered increasing attention. This study investigated the heavy metals and arsenic flows in organic fractions of MSW (OFMSW) in Shanghai, China, through a one-year monitoring program. The OFMSW separated directly from the source (source-separated, pure organic waste), obtained from the treatment facilities were sampled and compared with pure foodstuffs. The heavy metals and arsenic contents in the source-separated OFMSW resembled those in foodstuffs, whereas the OFMSW from the treatment facilities was significantly contaminated with heavy metals and arsenic and failed to meet the government standards for land use. Using flow analysis, >80% of heavy metals and arsenic were from extrinsic inorganic waste with high ash content that was combined with OFMSW during MSW collection, transfer, transportation, and storage stages. Based on source analysis of heavy metals and arsenic, suggestions for reducing heavy metals and arsenic contents in the current MSW management system in Shanghai are presented. © 2008 American Chemical Society.
Other Subjects
Arsenic; Food products; Heavy metals; Waste management; Arsenic contents; Source analysis; Treatment facilities; Solid wastes; arsenic; heavy metal; organic compound; Arsenic; Food products; Heavy metals; Solid wastes; Waste management; food; heavy metal; land use; municipal solid waste; waste management; waste treatment; article; China; composting; environmental monitoring; flow measurement; heavy metal removal; incineration; land use; landfill; municipal solid waste; pollution transport; waste management; Arsenic; China; Metals, Heavy; Organic Chemicals; Refuse Disposal; Asia; China; Eurasia; Far East; Shanghai
Type
journal article
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