AS-SMBR与BPAC-SMBR运行特性的比较研究  

Study on the Operating Characteristics between AS-SMBR and BPAC-SMBR Systems

作　　者：李耀中[1] 贺延龄[1] 刘永红[1] 杨树成[1] 谭华安[1] 郝坚[1] 

机构地区：[1]西安交通大学环境工程系,陕西西安710049

出　　处：《环境科学研究》2005年第5期52-55,共4页Research of Environmental Sciences

基　　金：陕西省科技发展计划资助项目(2001K06-G17)

摘　　要：在完全相同的进水和操作条件下,考察了添加粉末活性炭(PAC)的生物活性炭浸没膜生物反应器(BPAC-SMBR)与常规的活性污泥浸没膜生物反应器(AS-SMBR)的运行特性。研究比较了2类反应器在长期运行条件下的膜通透性和活性污泥混合液特性,并就ρ(PAC)对膜过滤阻力的影响及2个体系的抗冲击负荷能力进行了分析。结果表明BPAC-SMBR的过滤性能要优于AS-SMBR,其主要原因来自于反应器内活性污泥混合液特性的差异;随着ρ(PAC)的提高,膜过滤阻力的降低幅度依次减小;与AS-SMBR相比,BPAC-SMBR具有更强的抗冲击负荷能力。The characteristics of submerged membrane bioreactors （SMBR） with and without powdered activated carbon （PAC） addition were investigated respectively under identical feed and operation conditions. A series of experiments were conducted on both systems to analyze filterability, foc in the bulk solution and the effect of PAC contents on hydraulic resistance. The results demonstrated that pronounced flux enhancement was achieved by PAC addition. The different filtration performance between the two systems might mainly stem from the different characteristics of bulk phase. With the increase of PAC content, the decrease rate of hydraulic resistance will be reduced. Investigation of the reactors stability to organic shock loads showed that BPAC-SMBR has better buffer capacity than AS-SMBR.

关 键 词：膜生物反应器 生物活性炭 活性污泥 膜污染 通量 

分 类 号：X703.1[环境科学与工程—环境工程]