...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Mechanisms of MS2 Bacteriophage Removal by Fouled Ultrafiltration Membrane Subjected to Different Cleaning Methods
【24h】

Mechanisms of MS2 Bacteriophage Removal by Fouled Ultrafiltration Membrane Subjected to Different Cleaning Methods

机译：不同清洗方法对超滤膜超滤膜去除MS2噬菌体的作用机理

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An ultrafiltration unit with a polyvinylidene fluoride (PVDF) membrane of 40 nm nominal pore size was used to study bacteriophage MS2 removal under different membrane conditions: pristine membrane,membrane fouled by soluble microbial product (SMP) extracted from membrane bioreactor (MBR) feedwater,backwashed membrane,and chemically cleaned membrane.The order of MS2 removal by these membranes was as follows: fouled membrane ＞ backwashed membrane ＞ chemically cleaned membrane ≈ pristine membrane.A linear correlation between membrane relative permeability and MS2 removal was found.Mass balance analysis showed a high percentage of MS2 in the concentrate for the fouled membrane as compared with the pristine membrane.Quartz crystal microbalance (QCM) results showed faster kinetics of MS2 adhesion to the pristine membrane than to the SMP-fouled membrane.In agreement with QCM results,an attractive force between MS2 and the pristine membrane was detected using an atomic force microscope (AFM),whereas a repulsive force was detected for the interaction between MS2 and the fouled membrane.The presence of SMP on the membrane surface led to higher rejection of MS2 due to both pore blocking and repulsion between MS2 and the SMP layer.Chemical cleaning removed most of the SMP foulant and as a result led to a lower MS2 removal.
机译：使用具有40 nm标称孔径的聚偏二氟乙烯（PVDF）膜的超滤装置研究了在不同膜条件下去除噬菌体MS2的情况：原始膜，从膜生物反应器（MBR）进水中提取的可溶性微生物产物（SMP）污染的膜，这些膜对MS2的去除顺序为：污垢膜＞反洗膜＞化学清洁膜≈原始膜。膜相对渗透率与MS2去除之间存在线性关系。质量平衡分析表明与原始膜相比，污垢膜浓缩物中的MS2百分比较高。石英晶体微天平（QCM）结果显示，与原始SMP污染膜相比，MS2附着在原始膜上的动力学更快，与QCM结果一致，使用原子力显微镜（AFM）检测MS2和原始膜之间的吸引力，w因此，在膜表面上存在SMP，由于MS2和SMP层之间存在孔阻塞和排斥作用，因此膜表面上存在SMP导致MS2的排斥率更高。化学清洗去除了大部分SMP污垢并因此导致较低的MS2去除率。

著录项

  • 来源
    《Environmental Science & Technology》 |2013年第23期|13422-13429|共8页
  • 作者

    Ruiqing Lu; Daniel Mosiman; Thanh H.Nguyen;

  • 作者单位

    Department of Civil and Environmental Engineering,University of Illinois at Urbana-Champaign,Urbana,Illinois 61801,United States;

    Department of Civil and Environmental Engineering,University of Illinois at Urbana-Champaign,Urbana,Illinois 61801,United States;

    Department of Civil and Environmental Engineering,University of Illinois at Urbana-Champaign,Urbana,Illinois 61801,United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号