摘要
挥发性氯代烃是地下水中检出率较高的有机污染物 ,同时也是饮用水氯气消毒的副产物 ,而它对人体的危害也已经得到了USEPA等机构的认同。文中主要从格栅材料、降解机理、影响还原性脱氯效率的因素、实际工程中应注意的问题以及发展方向等方面 ,对地下水中挥发性氯代烃的处理技术进行了阐述 ,介绍了格栅处理地下水中挥发性氯代烃的最新进展和实际意义 ,提出了格栅系统的实际应用潜力和存在的问题 ,特别是双金属系统的催化机理和催化剂失活问题 ,给国内这方面的研究者提供思路。
Volatile chlorinated organic compounds are the kind of organic contaminant that has the higher detection frequency in groundwater, and that is the main byproducts of drinking water disinfected with chlorine. The volatile chlorinated organic compounds have been proved to be harmful to human’s health by USEPA. This paper described the treatment technology of volatile chlorinated organic compounds in groundwater by permeable reactive barrier (PRB) including the materials of PRB, degradation mechanism, the factors of dechlorination efficient, and the problems of engineering and development direction. It introduces the newest development and practical value of reductive dechlorination by PRB. It proposes the potential and problems to be solved. Particularly, there are problems of catalytic principle and catalyst deactivation in bimetallic systems. The paper will give some study information for domestic researcher.
出处
《地学前缘》
EI
CAS
CSCD
2001年第2期309-314,共6页
Earth Science Frontiers
基金
国家自然科学基金!资助项目 (49832 0 0 5 )
国家自然科学基金!资助项目 (40 0 72 0 80 )
湖北省废物地质处理与环境保护重点实验
关键词
挥发性氯代烃
还原性脱氯
催化剂
地下水
有机污染物
格栅材料
降解机理
permeable reactive barrier
volatile chlorinated organic compounds
reductive dechlorination
bimetallic systems
catalyst deactivation
