超滤膜直接过滤处理低温低浊水的试验  

Experiment of Water Treatment of Direct Filtration under Low Temperature and Low Turbidity with Ultrafiltration Membrane Process

作　　者：傅金祥[1] 卢善文 曲明 郜玉楠[1] 

机构地区：[1]沈阳建筑大学,辽宁沈阳110168 [2]抚顺市热力公司,辽宁抚顺113000

出　　处：《净水技术》2014年第5期68-72,共5页Water Purification Technology

基　　金：辽河流域水污染治理技术评估及长效运行机制(2012ZX07505-002-002)

摘　　要：中试采用超滤膜直接过滤处理低温低浊水,考察了超滤膜的除污性能和影响膜污染的各种因素。结果表明超滤膜直接过滤的出水浊度恒低于0.1 NTU,对COD和UV254的平均去除率分别为17%和14%;处理水量越低,过滤周期越短,反洗强度越大,跨膜压差(TMP)增长越缓慢,越有助于缓解膜污染,使超滤膜系统能够长时间稳定运行;低温对膜污染的影响不容忽视。A pilot experiment of water treatment of direct filtration under low temperature and low turbidity with ultrafiltration membrane was carried out. The result shows that turbidity is always below 0. 1 NTU;removal rates of COD and UV254 are 17% and 14%,respectively. When less water is treated,filtration cycle is shorter,backwashing intensity is greater and TMP grows more slowly, it is more helpful to alleviating membrane fouling and making system run stably. Low temperature on membrane fouling can not be ignored.

关 键 词：超滤膜 低温低浊 跨膜压差 膜污染 水处理 

分 类 号：TU991[建筑科学—市政工程]