浸入式中空超滤膜在排泥水回收处理中的实验研究  

Experimental Study of Submerged Hollow Fiber Ultrafiltration Membrane on Reclaim of Sludge Water

作　　者：单文广[1] 姚宏[1] 许兆义[1] 薛晓博[1] 孙明东 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《北京交通大学学报》2006年第4期69-72,76,共5页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家"863"计划资助项目(2004AA601020)

摘　　要：针对自来水厂沉淀池的排泥水和滤池反冲洗水,采用浸入式中空超滤膜处理,产水可达到现行的国家饮用水水质标准(GB5749_85).研究表明,该工艺可将污泥浓度浓缩到2.5%,20℃时,在日常在线维护清洗情况下,可保证系统运行80 d才进行一次化学清洗,采用次氯酸钠和氢氧化钠清洗可使膜通量恢复97%.实验还得出,温度是影响膜通量的主要因素,且膜通量与温度呈线性正比关系,其线性关系为y=0.3858x+8.6396.With treatment of submerged hollow fiber ultrafiltration membrane, effluent can reach the National Drinking Water Standard （GB5749-85） especially for the Sludge Water from the sedimentation tanks of water supply plant and the backwashing water from filters. The technics can condense the thickness of sludge to 2.5 %. Daily maintenance and cleanout by online at 20℃ ensured that the system could be operated for 80d with only one chemical cleaning, and the membrane flux could be recovered to 97 % by adopting NaCIO and NaOH. It is shown from the experiment result that the temperature was a main factor that influenced the flux,which were linear increasing with y = 0. 3858x ＋ 8. 6396 as the temperature went up.

关 键 词：污泥水 中空超滤膜 污泥 回用 

分 类 号：X703[环境科学与工程—环境工程]