Contamination and Remediation of Heavy Metals in Soils near E-waste Recycling Area

• 作者: Chen Haitang He Huayan Hu Qingnian Lou Linjie Zhou Dandan
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 土壤重金属污染 电子垃圾回收 土壤修复 废弃物回收 致癌风险 农田土壤 质量分数 样品采集
• 年，卷（期）: 2015,（4）
• 页码范围: 21-24
• 页数: 4页
• 分类号: X53

摘要

In order to assess heavy metals pollution in agricultural soil after renovation in typical e-waste recycling areas,212 soil samples were collected and the mass fractions of 7 kinds of heavy metals(Cd,Cr,Cu,Hg,Ni,Pb and Zn)were analyzed.The results indicated that heavy metals pollution in agricultural soil was commonly existed in the study areas,and the soil was slightly contaminated by Pb but was moderately or critically polluted by Cd and Cu.However,the carcinogenic risk and non-carcinogenic risk status by heavy metals pollution were beyond acceptable levels,and soil remediation was quite necessary.After some investigations of bioremediation,we found that saponin as washing agent could highly strengthen the behavior of heavy metals desorption from soil,which had a good prospect of engineering practice.