外循环式UASB处理高浓度垃圾渗滤液的实验研究  

Study on high strength leachate treatment by outside circulation upflow anaerobic sludge blanket reactor

作　　者：李军[1] 陈刚[1] 何建平[2] 刘红[2] 孟光辉[1] 金永祥[1] 彭锋[1] 杜文利[3] 王磊[1] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100022 [2]北京市城市节水用水管理中心,北京100036 [3]北京市六里屯卫生填埋场,北京100094

出　　处：《现代化工》2007年第z1期184-187,共4页Modern Chemical Industry

基　　金：国家自然科学基金(50678008);建设部项目(KR0403200392);北京市节水办项目(KQ0403200394)

摘　　要：采用改进型上流式厌氧污泥床反应器处理高浓度垃圾渗滤液,并对厌氧消化的影响因素进行探讨.在进水原生渗滤液COD浓度在17 157～33 599 mg/L时,通过控制进水量,调节停留时间,控制反应器容积负荷在6.5～15.8 kg COD/m3·d,COD去除率稳定在85.0%～91.8%,去除率与容积负荷呈负相关性;出水COD平均浓度2 596 mg/L,但是可生化性较差,BOD5/COD平均为0.1;在高负荷下厌氧反应器产气率较高,平均产气率0.599 m3/kg COD,而且产气率与有机负荷呈正相关性.The high-strength leachate was treated by the advanced outside circulation UASB(upflow anaerobic sludge blanket),and the factors influencing the anaerobic digest were discussed.The experimental result showed that when COD of the influent was 17 157-33 599 mg/L,the removal rate was able to reach 85.0%-91.8%,and the COD removal had a negative relativity with volumetric loading rate;the average COD of the effluent was 2596 mg/L,but had a poor biodegradability,with an average BOD5/COD ratio of 0.1.Under the conditions of high loading rate,the reactor had a high gas producing rate,namely 0.599 m3/kgCOD,and it had a positive relativity with volumetric loading.

关 键 词：UASB 容积负荷 可生化性 产气率 

分 类 号：X52[环境科学与工程—环境工程] X799.3