摘要
六价铬是污染场地中常见的污染物之一,在污染场地修复过程中常出现“反弹”与“拖尾”现象。基于文献调研和工程实践经验,本文从场地环境调查、修复过程等环节入手,并结合场地污染特征、水文地质条件以及六价铬物化属性等方面全方位分析了污染场地修复过程中六价铬“反弹”和“拖尾”现象的成因。在此基础上提出了相应的解决措施和研发方向,旨在优化修复技术和工艺,实现六价铬污染场地的持久稳定修复。
Hexavalent chromium is one of the most common pollutants in contaminated sites,and the phenomena of“rebound”and“tailing”often occur in the remediation process of contaminated sites.Based on literature research and engineering practice experiences,this article started with the environmental survey and remediation process of the site,and comprehensively analyzes the causes of the“rebound”and“tailing”phenomenon of hexavalent chromium in the remediation process of contaminated sites,taking into account the pollution characteristics and hydrogeological conditions of site and the physicochemical properties of hexavalent chromium.Then,corresponding solutions and research directions were put forward,aiming to optimize the present remediation technologies and processes and realize the lasting and stable restoration of hexavalent chromium contaminated sites.
作者
靳敏
曹虎
韩伟
JIN Min;CAO Hu;HAN Wei(School of Environment&Natural Resources,Renmin University of China,Beijing 100872,China;Solid Waste and Chemicals Management Center,Ministry of Ecology and Environment,Beijing 100029,China)
出处
《化工环保》
CAS
CSCD
北大核心
2023年第4期419-426,共8页
Environmental Protection of Chemical Industry
基金
国家社科基金重大项目(20&ZD092)。
关键词
六价铬
土壤
地下水
污染场地
拖尾
反弹
hexavalent chromium
soil
underground water
contaminated site
tailing
rebound
