摘要
水体中有机氯化物的普遍存在已构成了严重的生态风险,其中部分有机氯化物属于持久性有机污染物,它们的环境行为与控制策略必须引起高度重视.文中从化工废水排放、农药的生产与使用、含多氯联苯材料的使用与环境残留、氯消毒副产物的产生、垃圾焚烧导致二噁英类物质的生成等方面分析了环境中有机氯化物的来源;总结了有机氯化物在水体、土壤和沉积物等方面的污染现状及其对人体健康和环境的危害;然后从生物降解、吸附富集、超临界催化还原与资源化利用方面论述了有机氯化物安全转化与控制的途径及原理;最后讨论了有机氯化物降解的未来研究的重点.
Organic chlorides （OCs） are ubiquitous in aquatic environments, which pose a significant ecological risk. As some of them are persistent organic pollutants, more attention should be paid to their environmental behav- iors and control strategies. In this paper, first, the sources of OCs are analyzed in terms of the discharge of chemi- cal wastewater, the production and use of pesticides, the use and residue of polychlorinated biphenyl materials, the generation of chlorination by-products, and the formation of dioxins from waste incineration, etc. Next, the pollu- tion situations caused by OCs in water bodies, soils and sediments and the corresponding harm to human health and environment are summarized. Then, the approaches and principles concerning the safe transformation and control of OCs are reviewed in terms of biodegradation, adsorption and enrichment, supercritical catalytic reduction and re- source utilization. Finally, the key issues for future studies on organic chloride degradation are discussed.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第11期29-36,共8页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金重点项目(21037001)
国家自然科学基金面上项目(21177042)
华南理工大学中央高校基本科研业务费专项资金资助项目(2011ZP0006)
关键词
水环境
有机氯化物
持久性有机污染物
污染控制
aquatic environment
organic chloride
persistent organic pollutant
pollution control
