【2h】

Membrane Bioreactor (MBR) Technology for Wastewater Treatment and Reclamation: Membrane Fouling

机译:膜生物反应器(MBR)技术用于废水处理和再生:膜污染

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The membrane bioreactor (MBR) has emerged as an efficient compact technology for municipal and industrial wastewater treatment. The major drawback impeding wider application of MBRs is membrane fouling, which significantly reduces membrane performance and lifespan, resulting in a significant increase in maintenance and operating costs. Finding sustainable membrane fouling mitigation strategies in MBRs has been one of the main concerns over the last two decades. This paper provides an overview of membrane fouling and studies conducted to identify mitigating strategies for fouling in MBRs. Classes of foulants, including biofoulants, organic foulants and inorganic foulants, as well as factors influencing membrane fouling are outlined. Recent research attempts on fouling control, including addition of coagulants and adsorbents, combination of aerobic granulation with MBRs, introduction of granular materials with air scouring in the MBR tank, and quorum quenching are presented. The addition of coagulants and adsorbents shows a significant membrane fouling reduction, but further research is needed to establish optimum dosages of the various coagulants/adsorbents. Similarly, the integration of aerobic granulation with MBRs, which targets biofoulants and organic foulants, shows outstanding filtration performance and a significant reduction in fouling rate, as well as excellent nutrients removal. However, further research is needed on the enhancement of long-term granule integrity. Quorum quenching also offers a strong potential for fouling control, but pilot-scale testing is required to explore the feasibility of full-scale application.
机译:膜生物反应器(MBR)已成为一种用于市政和工业废水处理的高效紧凑技术。阻碍MBR广泛应用的主要缺点是膜污染,这会大大降低膜的性能和使用寿命,从而导致维护和运营成本显着增加。在过去的二十年中,在MBR中寻找可持续的膜污染缓解策略一直是主要关注的问题之一。本文概述了膜结垢,并进行了研究以确定MBR中的结垢缓解策略。概述了污垢的种类,包括生物污垢,有机污垢和无机污垢,以及影响膜污垢的因素。提出了对结垢控制的最新研究尝试,包括添加凝结剂和吸附剂,好氧造粒与MBR结合,在MBR槽中引入粒状物料并进行空气洗涤以及定额淬火。凝结剂和吸附剂的添加显示出显着的膜结垢减少,但是需要进一步的研究来确定各种凝结剂/吸附剂的最佳剂量。同样,好氧制粒与针对生物污垢剂和有机污垢剂的MBR集成,显示出出色的过滤性能和结垢率的显着降低,以及出色的营养去除效果。但是,需要进一步研究以提高长期颗粒的完整性。法定人数的淬火也为结垢控制提供了强大的潜力,但是需要进行中试规模的测试以探索全面应用的可行性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

联系方式:18141920177 (微信同号)

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