摘要
多环芳烃作为环境中典型的持久性有机污染物,因其毒性强、危害大而备受关注。本文从生物修复、物理修复和化学修复等方面,概述了近年来国内外土壤多环芳烃污染的主要修复技术。生物修复技术处理成本低、操作便捷、二次污染小,但修复周期长、不适用于高浓度污染土壤;物理修复和化学修复可用于高浓度污染土壤,但存在改变土壤原有结构、运行和维护成本高等缺点。针对高浓度PAHs污染土壤,首先宜采用物理和化学修复去除其中大部分污染物,再进一步利用生物修复进行无害化处理,实现污染土壤的循环利用。
As a typical persistent organic pollutant in the environment, polycyclic aromatic hydrocarbons(PAHs) have attracted much attention because of their strong toxicity and great harm. The researches on main remediation technologies of soil PAHs pollution at home and abroad in recent years were summarized from the aspects of bioremediation, physical remediation and chemical remediation. Bioremediation technology has the advantages of low cost, convenient operation and small secondary pollution, but it has long remediation cycle and is not suitable for high concentration polluted soil. Physical remediation and chemical remediation can be used for high-concentration contaminated soil, but there are some disadvantages, such as changing the original structure of the soil and high operating and maintenance costs. For high-concentration PAHs contaminated soil, it is advisable to remove most of the pollutants by physical and chemical remediation first, and then use bioremediation for harmless treatment to realize the recycling of contaminated soil.
作者
滕青
王春
林炫洁
谢梅冰
程璐思
Teng Qing;Wang Chun;Lin Xuanjie;Xie Meibing;Cheng Lusi(Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control,School of Environmental Science and Engineering,Guangdong University of Petrochemical Technology,Maoming Guangdong 525000;School of Biological and Food Engineering,Guangdong University of Petrochemical Technology,Maoming Guangdong 525000)
出处
《中国农学通报》
2021年第23期138-143,共6页
Chinese Agricultural Science Bulletin
基金
茂名市科技计划项目“香蕉秸秆好氧堆肥中有机氮转化机制及肥料释放特性研究”(2020539)
广东省省级科技计划项目茂名市石油化工产业转型升级技术创新公共服务平台开放基金“含油污泥资源化处理技术研究”(2016B020211002)
广东石油化工学院校级科研基金项目“基于化肥、农药减量化的生态稻鸭种养耦合模式研究”(2017rc10)。
关键词
多环芳烃
有机物污染
土壤修复
生物修复
物理修复
化学修复
发展方向
polycyclic aromatic hydrocarbons
organic pollution
soil remediation
bioremediation
physical remediation
chemical remediation
development direction
