石油化工高等学校学报2011，Vol.24Issue(2)：62-65,4.DOI:10.3696/j.issn.1006-396X.2011.02.016
陶瓷微滤膜处理大理石加工废水的研究
Treatment of Marble Processing Wastewaters by Ceramic Micro-Filtration Membrane
金珊 1孙杰1
作者信息
- 1. 辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001
- 折叠
摘要
Abstract
Treatment of marble processing wastewaters by ceramic micro-filtration membrane with pore size of 0.8 μm was performed.The effects of the transmembrane pressure and crossflow velocity on the MF performance were investigated.The experimental results show that the feasible transmembrane pressure is 0.07 MPa and crossflow velocity 1.0 m/s.The solid rejections of the permeate samples were from 99.2％ to 99.8％.The MF process has no remarkable effect on the wastewater pH and COD, the membrane flux remained constant throughout the experiment, the average value is 400 L/(m2 · h).The flux was remarkable decline when the solid concentration of feed liquid is over 55 g/L.The membrane flux can be recovered completely after cleaned by the water with 20 minutes and nitric acid solution (volume fraction 1 ％)with 30 minutes.The MF process allowed the treated water to be recycled into the process, whereas the concentrated stream (rich in particulate matter) turned into sedimentation pool.关键词
陶瓷膜/微滤/大理石/废水Key words
Ceramic membrane/ Micro-filtration/ Marble/ Wastewater分类
化学化工引用本文复制引用
金珊,孙杰..陶瓷微滤膜处理大理石加工废水的研究[J].石油化工高等学校学报,2011,24(2):62-65,4.
