组合工艺去除垃圾渗滤液中的DBP和DEHP  

Removal of DBP and DEHP in combined landfill leachate treatment process

作　　者：卢利[1] 刘文[1] 崔锋[1] 许楠[1] 徐硕[1] 倪晋仁[2] 

机构地区：[1]北京大学深圳研究生院环境与能源学院,城市人居环境科学与技术重点实验室,深圳518055 [2]北京大学环境工程系,教育部水沙科学重点实验室,北京100871

出　　处：《环境工程学报》2012年第7期2295-2302,共8页Chinese Journal of Environmental Engineering

基　　金：广东省自然科学基金项目(9151601501000012)

摘　　要：探讨了采用实验室规模的生物处理组合工艺(上流式厌氧污泥床+曝气生物滤池+缺氧反应器+膜生物反应器,UASB+BAF+ANO+MBR)处理垃圾渗滤液过程中,邻苯二甲酸二丁酯(DBP)和邻苯二甲酸二(2-乙基己基)酯(DE-HP)两种内分泌干扰物在各工艺段的去除效率和机理。测定结果表明,对于DBP和DEHP浓度分别为164.4μg/L和215.0μg/L的原水,总出水浓度分别降至11.8μg/L和10.4μg/L,去除率分别达到92.9%和95.2%,处理效果良好。其中DBP在处理工艺中逐级降解,主要是微生物的降解作用。MBR是DEHP的主要去除工艺段,去除比例达到56.6%,膜截留效果明显。采用生物处理组合工艺可实现对垃圾渗滤液中DBP和DEHP的同时高效去除。The removal efficiency and mechanism of di-butyl phthalate （DBP） and di-（2-ethylhexyl） phthalate （DEHP） in laboratory scale combined landfill leachate biotreatment process （UASB （Up-flow Anaero- bic Sludge Bed） ＋ BAF （Biological Aerated Filter） ＋ ANO （Anoxic） ＋ MBR （Membrane bioreactor） ） were studied. The influent concentrations of DBP and DEHP were 164.4 μg/L and 215.0μg/L, respectively, which were reduced to 11.8 p.g/L and 10.4 μg/L, respectively in the effluent, and their removal rates were up to 92.9% and 95.2% , respectively. DBP could be gradually removed during the combined process, and the prin- ciple mechanism should be the degradation by microorganism. MBR was the major process to remove DEHP, in which the removal efficiency was 56.6% mostly owing to the effect of membrane retention. The suggested com- bined biotreatment process was efficient in simultaneous removal of DBP and DEHP in landfill leachate.

关 键 词：垃圾渗滤液 生物处理组合工艺 邻苯二甲酸二丁酯(DBP) 邻苯二甲酸二(2-乙基己基)酯(DEHP) 

分 类 号：X703.1[环境科学与工程—环境工程]