摘要
镉、砷复合污染土壤给农田生产和农产品食用安全构成严重威胁。由于镉、砷赋存形态的差异,同步治理难度较大。概述了土壤镉、砷复合污染现状及原位钝化修复难点,着重介绍了当前钝化处理过程中常用的无机和有机钝化材料,多角度探讨了钝化材料多元组配和材料改性的钝化效果及机理,对不同钝化材料的修复成本进行简要的成本效益分析,为镉、砷复合污染土壤钝化修复工程实践提供参考。
Cadmium and arsenic combined contamination of soil pose a serious threat to agricultural production and food safety.Due to the difference of the speciation of cadmium and arsenic,it was difficult to control the compound contamination of cadmium and arsenic simultaneously.The present situation of cadmium and arsenic combined contamination as well as the difficulty of in situ immobilization remediation process were summarized,the effects of inorganic and organic materials commonly used in the immobilization remediation process of cadmium and arsenic were introduced.The remediation effect and influence of multiple composite immobilization materials and modified materials were discussed from various aspects;the economic-benefit of different immobilization materials was also analyzed,which would provide a reference for engineering practices of cadmium and arsenic compound contaminated soil immobilization remediation.
作者
杨京民
Gahonzire Bonheur
姜娜
祖艳群
YANG Jingmin;Gahonzire Bonheur;JIANG Na;ZU Yanqun(College of Resources and Environment,Yunnan Agricultural University,Kunming Yunnan 650201)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2021年第9期1189-1195,1200,共8页
Environmental Pollution & Control
基金
云南省重点研发计划项目(No.2019BC001-04)。
关键词
镉、砷复合污染
钝化修复
钝化材料
多元组配
改性材料
cadmium and arsenic combined contamination
immobilization remediation
immobilization materials
multiple composition
modified materials
