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首页> 外文期刊>Environmental Science & Technology >Pretreatment for Low Pressure Membranes in Water Treatment: A Review
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Pretreatment for Low Pressure Membranes in Water Treatment: A Review

机译：水处理中低压膜的预处理综述

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摘要

The application of low pressure membranes (LPMs) to drinking water treatment and wastewater reuse has undergone accelerated development in the past decade. Integration of pretreatment with LPM filtration has been widely employed at full scale to reduce membrane fouling and/or increase the removal of certain aquatic contaminants. In principle, pretreatment of source water can impact membrane filtration in three ways: altering contaminant size distributions, changing mutual affinities of contaminants or their affinities to membrane surfaces, and suppressing undesirable microbial growth or removing biodegradable contaminants. The literature shows that compared to the well-demonstrated enhancement of contaminant removal, impact of pretreatment to membrane fouling is often small or even negative, which is further complicated by variations in source water quality and membrane properties. Coagulation has been the most successful pretreatment for fouling reduction. Novel technologies are in immediate need for fouling control; ones which rely on a better understanding of the mechanisms of pretreatment and LPM filtration are warranted. This article provides a critical review of the state-of-the-art of pretreatment for LPMs, and discusses potential areas for future technical development and scientific studies.
机译：在过去的十年中，低压膜（LPM）在饮用水处理和废水回用中的应用得到了加速发展。预处理与LPM过滤相结合已被广泛应用于大规模生产，以减少膜污染和/或增加某些水质污染物的去除。原则上，源水的预处理可以三种方式影响膜的过滤：改变污染物的大小分布，改变污染物的相互亲和力或它们对膜表面的亲和力，抑制不希望的微生物生长或去除可生物降解的污染物。文献表明，与充分证明的提高污染物去除能力相比，预处理对膜污染的影响通常很小甚至是负面的，这由于水源水质和膜特性的变化而变得更加复杂。混凝是减少污垢最成功的预处理方法。迫切需要结垢控制的新技术。那些需要对预处理和LPM过滤机制有更好理解的担保是有必要的。本文对LPM的最新技术进行了重要的评论，并讨论了未来技术开发和科学研究的潜在领域。

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  • 来源
    《Environmental Science & Technology》 |2009年第9期|3011-3019|共9页
  • 作者

    HAIOU HUANG; KELLOGG SCHWAB; JOSEPH G. JACANGELO;

  • 作者单位

    Johns Hopkins University, Center for Water and Health, 615 N. Wolfe Street, Baltimore, Maryland 21205;

    Johns Hopkins University, Center for Water and Health, 615 N. Wolfe Street, Baltimore, Maryland 21205;

    Johns Hopkins University, Center for Water and Health, 615 N. Wolfe Street, Baltimore, Maryland 21205 MWH, 40814 Stoneburner Mill Lane, Lovettsville, Virginia 20180;

  • 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
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