预处理+无机陶瓷膜工艺处理乳化液废水的实验研究  

Experimental study on the treatment of emulsified wastewater by pretreatment+inorganic ceramic membrane process

作　　者：王瑛[1] 李梦[1] 焦光联[2] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050 [2]甘肃省膜科学技术研究院,甘肃兰州730030

出　　处：《工业水处理》2011年第6期66-69,共4页Industrial Water Treatment

基　　金：甘肃省自然科学基金资助项目(3ZS042-B25-005)

摘　　要：实验采用预处理+无机陶瓷膜工艺对机械加工厂产生的乳化液废水进行处理。主要研究影响膜通量的几个操作条件:操作压力、膜面流速、温度对膜通量的影响情况,并确定了膜的合理操作条件;在此合理的操作条件下研究了膜通量、含油量、COD随时间的变化情况。结果表明,操作压力为0.36 MPa,膜面流速为4.66 m/s,温度为60℃时,膜设备处理乳化液废水,连续运行长达8 h以上,并且保持膜通量稳定在80 L/(m2.h)。此工艺对乳化液废水中油的去除率≥99.9%,COD的去除率≥99.1%。Pretreatment＋inorganic ceramic membrane process has been used for treating emulsion wastewater.Several operating conditions having effects on the membrane flue,such as operating pressure、membrane surface velocity and temperature,are studied,and their optimum operating conditions are determined.Under such optimum operating conditions,the changing situation of membrane flux,oil content and COD with time is studied.The results indicate that when the operating pressure is 0.36 MPa,membrane surface velocity is 4.66 m/s,and temperature is 60 ℃,theequipment used for treating the emulsified wastewater runs for more than 8 h continuously,and the membrane flux keeps at 80 L/（m2·h） stably.By this process,the removal rate of oil from emulsified wastewater is ≥99.9%,and COD removal rate≥99.1%.

关 键 词：无机陶瓷膜 乳化液废水 操作压力 膜面流速 

分 类 号：X703.1[环境科学与工程—环境工程]