高浓度粉末活性炭/超滤工艺的除污效能  

Study on Pollutant Removal Efficiency of Combined System of High Concentration Powdered Activated Carbon and Ultrafiltration

作　　者：于明梅[1] 于水利[1,2] 阮婷 马聪[2] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092 [2]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [3]广东粤港供水有限公司,广东深圳518021

出　　处：《中国给水排水》2011年第23期8-12,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(50978068);中日韩国际科技合作项目(2010DFA92460);国家水体污染控制与治理科技重大专项(2009ZX07424-005)

摘　　要：单一的膜技术难以去除原水中的有机物和氨氮,并存在严重的膜污染。向超滤膜池中投加高浓度的粉末活性炭而构成一体化系统,考察了其对微污染原水中有机物和氨氮的去除效果。结果表明,该系统对UV254、UV350、TOC、浊度和氨氮都取得了良好的去除效果,出水中的细菌总数为零。整个试验期间,对UV254和UV350的平均去除率分别为95%和96%,对TOC的平均去除率为72%;对浊度的平均去除率>98%,出水浊度<0.1 NTU;在稳定运行阶段,对氨氮的平均去除率为82%。整个试验期间,跨膜压差呈现阶梯式上升的特征,从最初的0.003 MPa上升到试验结束时的0.030 MPa,膜污染得到较好的缓解。The single membrane technology is difficuh to remove organic matter and ammonia nitrogen in raw water, and severe membrane fouling exists. The treatment efficiencies of the organic matter and ammonia nitrogen by combined system of high concentration powdered activated carbon and UF membrane were investigated. The results show that the combined system has higher removal efficiencies of UV254, UV350, TOC, turbidity and ammonia nitrogen. The total number of bacteria is zero in the effluent. During the whole experimental stage, the average removal rates of UV254 and UV350 are 95% and 96% respectively, the average removal rate of TOC is 72%, the average removal rate of turbidity is 98% or more, and the effluent turbidity is always less than 0.1 NTU. During the stable operation stage of the equipment, the average removal rate of ammonia nitrogen is 82%. During the whole experimental stage, transmembrane pressure is characterized by stepwise increase, from the initial 0. 003 MPa to the final 0. 030 MPa. The membrane fouling is effectively relieved.

关 键 词：高浓度粉末活性炭 超滤膜 氨氮 

分 类 号：TU991.2[建筑科学—市政工程]