活性炭修复沉积物HOCs的机理及应用研究进展  

Research Progress on the Mechanism and Application of Activated Carbon in Remediation of Hydrophobic Organic Contaminants in Sediments

作　　者：邱夏雯 张祥普 邱焕 QIU Xiawen;ZHANG Xiangpu;QIU Huan(School of Environment,Jinan University,Guangzhou 511400,China;Hubei Provincial Academy of Eco-environment Sciences(Provincial Ecological Environment Engineering Assessment Center),Wuhan 430072,China)

机构地区：[1]暨南大学环境学院,广东东广州511400 [2]湖北省生态环境科学研究院(省生态环境工程评估中心),湖北武汉430072

出　　处：《环境科学与技术》2023年第6期228-236,共9页Environmental Science & Technology

基　　金：国家自然科学基金重点项目(2163000120)。

摘　　要：疏水性有机污染物(HOCs)由于其较强的疏水性,易于在富含有机质的沉积物中富集。当上覆水体中HOCs摄入减少时,沉积物中的HOCs会进一步向水体释放,从而对生态系统构成一定的威胁。活性炭(AC)吸附剂是治理沉积物中HOCs常见的修复材料,但多数旨在研究AC修复污染沉积物的效率以及各种因子对AC修复的影响,几乎没有研究对AC修复沉积物的整体状况进行系统分析。因此该文主要总结了AC吸附HOCs的机理以及可能会对吸附去除产生影响的因素,包括AC性质、化合物性质、环境因子、动力学因素以及生物扰动等。此外,针对AC引入可能会对几种典型生物造成危害进行分析,就当前研究中存在的问题对今后AC有效修复沉积物中的HOCs提供一些建议。Hydrophobic organic contaminants(HOCs)with strong hydrophobicity are easy to accumulate in organic-rich sediments.When the intakes of HOCs in the overlying water decrease,HOCs in sediments will be further released into water body,thus posing a certain threat to the ecosystem.Activated carbon(AC)as a common adsorbent is used for treating HOCs in sediments.Most studies were aimed at analyzing the efficiency of AC remediation of contaminated sediments and the impact of various factors on AC remediation.However,few systematic analyses have been carried out on the whole situation of AC remediation of sediments.Therefore,the mechanisms for adsorption of AC on HOCs and various impact factors including AC properties,compound properties,environmental factors,kinetic factors,and bioturbation,etc.were summarized.Moreover,the situation after adding AC may cause harm to several typical organisms in sediment was also analyzed.It can provide some suggestions for the effective governance of HOCs in sediments by AC in the future.

关 键 词：疏水性有机污染物 沉积物 活性炭 修复 影响因素 

分 类 号：X505[环境科学与工程—环境工程]