MBR处理微污染河水试验  

Treatment of Micro-Polluted River Water by MBR

作　　者：俞开昌[1] 陈春生[1] 贾海涛[1] 杨利[1] 娄志颖[1] 关晶[1] 

机构地区：[1]北京碧水源科技股份有限公司,北京100097

出　　处：《环境科学研究》2010年第7期936-941,共6页Research of Environmental Sciences

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07208-002)

摘　　要：采用絮凝沉淀+缺氧/膜生物反应器(Anoxic/Membrane Bioreactor,A/MBR)工艺对劣Ⅴ类微污染河水的处理进行了中试研究,探讨了该工艺对低碳高氮磷河水处理效果的保证措施.结果表明:系统处理规模为10m3/d,在曝气量为8m3/h,平流沉淀池、缺氧池和膜池水力停留时间分别为25min,0.8h和2.5h,污泥ρ(MLSS)为6.0～6.5g/L的运行条件下,向缺氧池投加约为理论量2倍的甲醇,在平流沉淀池与膜池分别投加10和5mg/L的聚合氯化铝(PAC),出水ρ(CODCr),ρ(BOD5),ρ(NH3-N)和ρ(TP)达到《地表水环境质量标准》(GB3838-2002)Ⅲ类水体标准,ρ(TN)<15mg/L.A pilot study was carried out to treat inferior V grade micro-polluted river water by Anoxic/Membrane bioreactor （A/MBR） combined with pretreatment with coagulation and sedimentation. The process conditions and measures were investigated to achieve good effluent quality in terms of treating the micro-polluted river water with high concentrations of nitrogen and phosphorus and low concentrations of carbon. The pilot system with a capacity of 10 m^3/d worked at air flow-rate 8 m^3/h and HRT of the sedimentation tank, anoxic tank and membrane tank at 25 min, 0.8 h and 2. 5 h respectively, and under the additional conditions of MLSS concentration 6.0 -6.5 g/L. The polymeric aluminums （PAC） were dosed 10 mg/L in the sedimentation tank and 5 mg/L in the membrane tank respectively, and about two times the theoretical methanol quantity was dosed-in the anoxic tank. The results showed that the mass concentrations of CODCr, BOD5 , NH3-N and TP in the effluent could meet the grade m standards of Environmental Quality Standards for Surface Water （GB3838-2002） , and TN was less than 15 mg/L.

关 键 词：膜生物反应器 中试 微污染河水 脱氮除磷 

分 类 号：X703[环境科学与工程—环境工程]