Quantitative evaluation of heavy metals' pollution hazards and estimation of heavy metals' environmental costs in leachate during food waste composting

被引:86
作者
Chu, Zhujie [1 ,2 ]
Fan, Xiuhua [1 ,2 ]
Wang, Wenna [1 ,2 ]
Huang, Wei-chiao [3 ]
机构
[1] Harbin Engn Univ, Econ & Management Sch, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Engn Univ, Sch Econ & Management, Res Inst Disaster & Crisis Management, Harbin 150001, Heilongjiang, Peoples R China
[3] Western Michigan Univ, Dept Econ, Kalamazoo, MI 49008 USA
基金
中央高校基本科研业务费专项资金资助;
关键词
Heavy metals pollution hazards; environmental costs leachate food waste; composting; MUNICIPAL SOLID-WASTE; MARINE POLLUTION; MANAGEMENT; LANDFILL; IMPACTS; RISK; FRACTIONS; REDUCTION; MODEL; PB;
D O I
10.1016/j.wasman.2018.11.031
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Heavy metals in leachate during food waste composting may produce different degrees of pollution hazards and further induce environment costs, when the concentrations of heavy metals exceed the discharging quality standards. Quantitative evaluation of heavy metals' pollution hazards and estimation of such environmental costs are under-represented in the existing literature. This paper uses a logistic function approach to evaluate the extent of pollution hazards of heavy metals such as cadmium (Cd), chromium (Cr), mercury (Hg), lead (Pb) and arsenic (As) and to estimate heavy metals' environmental costs in leachate during food waste composting from Minhang food waste treatment plant located in northern Shanghai, China. Major findings of this study are: (1) The pollution hazards rate of Cd amounts to 94.03%, probably because Cd-containing materials such as plastics are mixed with food waste; (2) With the comprehensive pollution hazards rate estimated as 94.48%, the environmental costs caused by heavy metals in leachate during food waste composting amount to US$0.52 per tonne. This magnitude of environmental costs is meaningful and significant, considering that it is equivalent to 2.97% of Shanghai's food waste treatment charges. (C) 2018 The Authors. Published by Elsevier Ltd.
引用
收藏
页码:119 / 128
页数:10
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