垃圾渗滤液生物处理重金属的去除效果分析  

Analysis of the Removal of Heavy Metals in Landfill Leachate by Biological Treatment

作　　者：杨志泉[1] 周少奇[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2005年第6期63-67,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省科技攻关项目(2002C32108);广东省重点科技攻关项目(302-B25570);广州市重点科技攻关项目(98-K-005-01)

摘　　要：为有效地处理垃圾渗滤液这种污染物种类繁多的毒性废水,采用ICP-MS质谱仪对广州大田山垃圾渗滤液中的重金属进行分析,共测出46种金属元素,其中有10种被列入美国环保局优先控制污染物的黑名单.在这10种优先控制污染物中,铬、镍、锌、铜、铅的含量相对较高,其中铬、锌的含量甚至超过100 μg/L.采用同时好氧-厌氧生物反应器处理垃圾渗滤液,结果表明,有10种重金属的去除率超过70%,12种重金属的去除率在50%～69%之间,浓度较高的铬、锌去除率均超过了60%.在所测出的10种优先控制污染物中,铬、锌、砷、铅、硒的去除率均超过了60%.In order to efficiently treat landfill leachate, a sort of effluent containing complex pollutants, ICP-MS analysis was used to measure the heavy metals contained in the landfill leachate generated from Datianshan landfill in Guangzhou. 46 kinds of heavy metals in the landfill leachate were detected, 10 of which belong to the environmental priority pollutants considered by Environmental Protection Agency in USA. In these 10 priority pollutants, the mass concentrations of Cr, Ni, Zn, Cu and Pb are comparatively high, especially those of Cr and Zn, which are more than 100μg/L. Moreover, a set of simultaneous aerobic-anaerobic bioreactor was used to treat the landfill leachate. The results demonstrate that 10 of the 46 pollutants have a removal rate of more than 70%, 12 of 50%~69%, and the removal rates of Cr and Zn all exceed 60%. In addition, in the ten priority pollutants, the removal rates of Cr, Zn, As, Pb and Se account for more than 60%.

关 键 词：垃圾渗滤液 重金属 生物处理 同时好氧-厌氧处理 分布 

分 类 号：X506[环境科学与工程—环境工程]