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首页> 外文期刊>Environmental Science & Technology >Flow Analysis off Heavy Metals in MSW Incinerators for Investigating Contamination of Hazardous Components
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Flow Analysis off Heavy Metals in MSW Incinerators for Investigating Contamination of Hazardous Components

机译：MSW焚化炉中重金属的流量分析，用于调查有害成分的污染

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摘要

The contribution of hazardous components in municipal solid waste (MSW) to environmental risks has seldom been quantified due to their heterogeneous streams and irregular disposal patterns. A material flow analysis, in which the input metals in major MSW compositions (excluding discriminable hazardous components) were subtracted from the total output metals in the treatment products, was proposed to estimate the heavy metal contamination in MSW due to hazardous components. The statistical data from 1-year field measurements fortwo large-scale incinerators in Shanghai city were used as an illustrative example. The results indicated that the amount of Cr and Ni in the incineration products were similar to those found in the major MSW compositions, while the amounts of Cd, Cu, Pb, and Zn in the incineration products were 2.27-4.00 times, 1.90-3.77 times, 2.25-3.51 times, and 2.98-4.06 times greater than that in the MSW. According to evaluation, more than 56-75% of Cd, 47-74% of Cu, 56-72% of Pb, and 66-75% of Zn in the MSW were contributed by the minor hazardous components, indicating the need for source separation. The methodology provides a cost-effective procedure for quantification of the hazardous waste contamination in MSW.
机译：由于城市固体废物（MSW）中有害成分的异质流和不规则的处置方式，因此很少量化其对环境风险的贡献。提出了一种物料流分析，其中从处理产品中的总输出金属中减去主要MSW成分中的输入金属（不包括可区分的危险成分），以估计由于有害成分而导致的MSW中重金属污染。以上海市两座大型焚烧炉一年现场测量的统计数据为例。结果表明，焚烧产物中的Cr和Ni含量与主要城市固体废弃物中的含量相似，而焚烧产物中Cd，Cu，Pb和Zn的含量为2.27-4.00倍，1.90-3.77。分别是城市固体垃圾的2.2倍，3.55倍和2.98-4.06倍。根据评估，城市固体废弃物中的Cd，Cd的47-74％，Cu的47-74％，Pb的56-72％和Zn的66-75％占超过56-75％，表明需要来源分离。该方法为量化城市固体废弃物中的危险废物污染提供了一种经济有效的程序。

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