摘要
结合近年来地下水污染修复技术研究的热点问题和学科发展需求,对异位生物、异位淋洗、原位化学、原位生物4种修复技术的基本原理、技术特点、研究发展情况和发展方向进行论述。以期为我国污染场地地下水修复技术的发展提供借鉴。值得关注的是:异位淋洗修复技术中,新型螯合型表面活性剂N-十二酰基乙二胺三乙酸分子具有亲水亲油两性结构,能同时去除有机物和重金属污染物;生物修复技术中,在有些地质条件复杂的环境很难向地下水中输送氧气,强化厌氧生物修复处理技术可能是去除污染物最有效的解决方法;EK-PRB-EDTA联合修复技术能够对污染物的去除产生协同增强作用,比单一的修复技术更有效果,未来联合多种修复技术用来修复地下水污染将是研究的重点方向。
Combined with the hot issues of groundwater pollution remediation technology research in recent years and the development needs of the discipline.In this paper,the basic principles and technical characteristics of four restoration techniques of Ex-situ bioremediation,Ex-situ leaching,Insitu chemistry and In-situ bioremediation technologies are discussed in order to provide reference for the development of groundwater remediation technology of polluted sites in China.It is noteworthy that in the Ex-situ leaching remediation technology,the new chelating surfactant sodium Nlauroyl ethylenediamine triacetate molecule has a hydrophilic and oleophilic amphiphilic structure,which can simultaneously remove organic matters and heavy metal pollutants.In some environments with complicated geological conditions,it is difficult to deliver oxygen to groundwater,so enhanced anaerobic bioremediation treatment technology may be the most effective solution to remove pollutants.EK-PRB-EDTA combined remediation technology is able to have a synergetic enhancement effect on the removal of pollutants,which is more effective than single remediation technology.In the future,it will be a key research direction to combine multiple remediation technologies for the remediation of groundwater pollution.
作者
代朝猛
张峻博
李彦
段艳平
DAI Chaomeng;ZHANG Junbo;LI Yan;DUAN Yanping(College of Civil Engineering,Tongji University,200092;School of Environment and Geography,Shanghai Normal University,200233:Shanghai,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2022年第8期1-6,13,共7页
Technology of Water Treatment
基金
国家重点研发计划(2019YFE0114900)
国家自然科学基金项目(42077175)。
关键词
地下水
污染
原位修复
异位修复
技术发展
groundwater pollution
pollution
in-situ remediation
ex-situ remediation
technology development
