Review on remediation technologies for arseniccontaminated soil  

作　　者：Xiaoming Wan Mei Lei Tongbin Chen 

机构地区：[1]Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences,Beijing 100101,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Frontiers of Environmental Science & Engineering》2020年第2期41-54,共14页环境科学与工程前沿（英文）

基　　金：the Innovation Academy for Green Manufacture,Chinese Academy of Sciences(Grant No.IAGM-2019-A16-5);the National Key Research and Development Program of China(Grant No.2018YFC1800302);the Youth Innovation Promotion Association of the Chinese Academy of Sciences.

摘　　要：Arsenic(As)is a top human carcinogen widely distributed in the environment.As-contaminated soil exists worldwide and poses a threat on human health through water/food consumption,inhalation,or skin contact.More than 200 million people are exposed to excessive As concentration through direct or indirect exposure to contaminated soil.Therefore,affordable and efficient technologies that control risks caused by excess As in soil must be developed.The presently available methods can be classified as chemical,physical,and biological.Combined utilization of multiple technologies is also common to improve remediation efficiency.This review presents the research progress on different remediation technologies for As-contaminated soil.For chemical methods,common soil washing or immobilization agents were summarized.Physical technologies were mainly discussed from the field scale.Phytoextraction,the most widely used technology for As-contaminated soil in China,was the main focus for bioremediation.Method development for evaluating soil remediation efficiency was also summarized.Further research directions were proposed based on literature analysis.

关 键 词：Arsenic field-scale IMMOBILIZATION PHYTOEXTRACTION Soil WASHING 

分 类 号：X53[环境科学与工程—环境工程]