矿化垃圾反应床进出水腐殖质对汞的络合作用  

Complexing Capacity of Humic Substance for Hg in Influent and Effluent of Aged-refuse-based Bioreactor

作　　者：严光亮 阳小霜[2] 牛静[2] 

机构地区：[1]上海老港废弃物处置有限公司,上海201302 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《环境卫生工程》2012年第1期31-33,共3页Environmental Sanitation Engineering

基　　金：上海市科学技术委员会科研计划项目(10DZ1200109)

摘　　要：通过检测不同填埋龄的渗沥液中重金属汞的浓度,研究了矿化垃圾反应床的进出水中腐殖质对汞的络合作用,讨论了矿化垃圾反应床对渗沥液中的腐殖质金属络合性质的影响。结果表明:渗沥液中汞的浓度与填埋年份之间无特定关联;矿化垃圾反应床进出水的腐殖质,包括胡敏酸和富里酸,对汞表现出不同的络合能力,且出水腐殖质的络合能力强于进水腐殖质的能力。渗沥液经矿化垃圾反应床处理后,其中重金属汞的迁移转化能力减弱,稳定性增强,对环境的潜在危害降低。The concentrations of Hg in leachate with different landfilling ages were tested. The complexing capacity of humie substances for Hg in the influent and effluent of aged-refuse-based bioreactor （ABR） were researched. And the effect of ABR on the complexing capacity was discussed. The results showed that the concentrations of Hg had no correlative relationship with the landfilling times. The complexing capacities of humie acid and fulvic acid for Hg in the influent and effluent of ABR were different. And complexing capacity of humic substance for Hg in the effluents was stronger than that in the iniluent. The transferring and transforming behaviors of Hg were limited in the leachate by ABR, its stability was enhanced, and the risk of Hg in the leachate was reduced to environment.

关 键 词：矿化垃圾反应床 渗沥液 腐殖质 汞 络合作用 

分 类 号：X703[环境科学与工程—环境工程]