反渗透膜处理PVC离心母液  

Treatment of PVC centrifugal mother liquid by reverse osmosis

作　　者：刘久清[1] 蒋彬[1] 杨秋菊[1] 

机构地区：[1]中南大学冶金科学与工程学院,长沙410083

出　　处：《膜科学与技术》2011年第1期94-96,100,共4页Membrane Science and Technology

基　　金：国家自然科学基金资助项目(20806094);湖南省自然科学基金资助项目(10JJ5007);湖南省科技计划重点项目(2010SK2011);长沙市科技计划项目(K0902123-11)

摘　　要：采用反渗透膜分离技术对PVC离心母液进行试验,研究了不同进膜压力对膜通量、渗透液电导的影响.在确定了压力参数后,分析了运行时间对膜通量、渗透液电导、COD的影响.试验结果表明,第一次通过RO膜的渗透液电导为42.3μs;在进膜压力为1.0 MPa,膜设备运行30 min情况下,第二次通过RO膜的渗透液电导为7.37μs,COD接近于0.出水达到排放标准,经进一步处理可回用于生产.Applying reverse osmosis for PVC centrifugal mother liquor in the pilot test, the effect of different pressure on membrane flux and filtrate conductance was studied. After determining the parameter of pressure, the effect of runtime on membrane flux, filtrate conductance, COD was analyzed. The test results showed the filtrate conductance of the first step separation of reverse osmosis was 42. 3 s; when the pressure was 1.0 MPa and the membrane apparatus had running for 30 min, the filtrate conductance of the second separation of reverse osmosis was 7.37 s, and its COD was close to 0, the filtrate reached discharge standards of wastewater, and it could also be reused in production through advanced treatment.

关 键 词：PVC离心母液 膜通量 电导 COD 

分 类 号：X703[环境科学与工程—环境工程]