混凝沉淀-生物粉末炭/超滤组合工艺处理含嗅味微污染水研究  

Treatment of Taste and Odor Contained Micro-Polluted Raw Water by Coagulation-Sedimentation and BPAC/SUF Combined Process

作　　者：李星[1] 刘玲[1] 杨艳玲[1] 梁爽[1] 王伟强[1] 李波[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《北京理工大学学报》2013年第5期533-537,544,共6页Transactions of Beijing Institute of Technology

基　　金：国家科技重大专项资助项目(2012ZX07404-003);北京市自然科学基金资助项目(8092005)

摘　　要：针对富营养化湖库水普遍存在的藻类、有机物污染及嗅味问题,以实验室模拟的含嗅味微污染水为试验水样,研究了混凝沉淀-生物粉末活性炭/浸没式超滤(BPAC/SUF)组合工艺对叶绿素a、有机物和嗅味污染物的去除效果及对膜污染的影响,探讨一种有效的含嗅味微污染水处理技术.结果表明,混凝沉淀-BPAC/SUF组合工艺对叶绿素a的去除效果显著,平均去除率达95.5%;组合工艺可强化有机物的去除效果,对UV254、DOC和CODMn的平均去除率分别为31.0%,30.4%和51.0%;对二甲基异冰片(2-MIB)和土臭素(GSM)有较好的去除效果,平均去除率为74.8%和75.1%,出水平均浓度均在嗅阈值以下;整个实验期间,跨膜压差仅增长了3.80kPa,膜污染得到很好的缓解.To deal with the issue of water polluted by algae, organic matters and taste and odor in eutrophic water of lakes and reservoirs, a combined process of coagulation-sedimentation combined with biological powered activated carbon and submerged ultrafiltration（BPAC/SUF） was applied to study the removal effects of chlorophyll a, organic matters and taste and odor, and to investigate the membrane fouling characteristic of micro-polluted water sample with artificial taste and odor in lab-scale. The results show that remarkable removal rate of chlorophyll a could reach to 95.5%, and the organic matters＇ removal efficiency was obviously improved with the average removal rate of 31.0% for UV2a4, 30.4% for DOC and 51.0% for CODMn, respectively. Better removal effect on 2-MIB and GSM were achieved with 74.8~ and 75.1~, respectively. The average taste and odor level of treated water was below the threshold value. Membrane fouling was well controlled during the whole experimental period, and the trans-membrane pressure was increased only by 3.80 kPa.

关 键 词：混凝沉淀 超滤 生物粉末活性炭 含嗅味微污染水 跨膜压差 

分 类 号：TU991.2[建筑科学—市政工程]