外循环UASB反应器处理黑水试验研究  

Research on Blackwater Treatment in External Circulation UASB Reactor

作　　者：刘阳春[1] 袁林江[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《中国给水排水》2011年第21期97-99,104,共4页China Water & Wastewater

基　　金：教育部新世纪优秀人才支持计划项目(NCET-07-0659);国家水体污染控制与治理科技重大专项(2009ZX07212-002-004-002;2009ZX07212-002-004-003);国家自然科学基金重大国际合作项目(50621140001)

摘　　要：采用外循环UASB反应器处理学校教学大楼冲厕水(黑水),反应器在中温(35℃)条件下运行,通过改变进水流量和混合液回流量,检测进出水的pH值、COD、SS、氨氮、总氮等指标,考察反应器性能。结果表明,控制进水流量为2.64 L/h,混合液回流量为10.5 L/h,反应器的处理效果达到最佳,对COD的平均去除率达到75%以上,对SS的去除率达到65%以上,反应器内污泥床层膨胀充分,平均产气量为3.545 2 L/d。The blackwater from classrooms building was treated in external circulation UASB reactor operated at 35 ℃. During the experiment, indexes such as pH value, COD, SS, NH4＋ - N, TN and so on in the influent and effluent were measured by changing the influent rate and mixed liquid return rate, and the performance of the reactor was investigated. The results indicate that the system has the op- timal treatment efficiency when the influent rate and the mixed liquid return rate are controlled at 2.64 L/h and 10.5 L/h respectively. The average removal rates of COD and SS are more than 75% and 65% respectively. Meanwhile, the anaerobic sludge in the reactor is sufficiently expanded, and the average production of biogas is 3. 545 2 L/d.

关 键 词：外循环UASB反应器 黑水 混合液回流量 进水流量 

分 类 号：X703[环境科学与工程—环境工程]