Immobilization of Lead and Cadmium in Contaminated Soil Using Amendments: A Review

查看全文 作　　者：Amanullah [1,2]MAHAR;WANG [1]Ping;LI [1]Ronghua;ZHANG [1]Zengqiang

机构地区：[1]College of Natural Resources and Environment, Northwest A&F University;[2]Centre for Environmental Sciences, University of Sindh

出　　处：《Pedosphere》索引2015年第25卷第4期,共14页

摘　　要：Since the inception of industrial revolution, metal refining plants using pyrometallurgical processes have generated the prodigious emissions of lead(Pb) and cadmium(Cd). As the core target of such pollutants, a large number of soils are nowadays contaminated over widespread areas, posing a great threat to public health worldwide. Unlike organic pollutants, Pb and Cd do not undergo chemical or microbial breakdown and stay likely in site for longer duration after their release. Immobilization is an in-situ remediation technique that uses cost-effective soil amendments to reduce Pb and Cd availability in the contaminated soils. The Pb and Cd contamination in the soil environment is reviewed with focus on source enrichment, speciation and associated health risks, and immobilization options using various soil amendments. Commonly applied and emerging cost-effective soil amendments for Pb and Cd immobilization include phosphate compounds, liming, animal manure, biosolids, metal oxides, and biochar. These immobilizing agents could reduce the transfer of metal pollutants or residues to food web(plant uptake and leaching to subsurface water) and their long-term sustainability in heavy metal fixation needs further assessment. 关键词：土壤改良剂镉(CD) 固定化有机污染物铅金属氧化物成本效益金属污染物

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Immobilization of Lead and Cadmium in Contaminated Soil Using Amendments: A Review

参考文献(149)

引证文献(65)

耦合文献(53)

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