The Effects of Manganese-Reducing Bacteria on Desorption of Manganese From MnO_x(s)-Coated Filter Media

William Knocke; Lindsay Swain; Amy Pruden-Bagchi; Joseph Falkingham

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The Effects of Manganese-Reducing Bacteria on Desorption of Manganese From MnO_x(s)-Coated Filter Media

机译：还原锰细菌对锰从MnO_x涂层过滤介质中解吸锰的影响

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The beneficial role of the presence of a manganese oxide (MnO_x(s)) coating on water plant filter media in promoting efficient soluble manganese (Mn) has been known for over 30 years. Such coatings allow water utilities to produce finished water with Mn concentrations well below the secondary MCL for Mn. This removal process requires the presence of free chlorine in the filter-applied water to promote ongoing regeneration of the MnO_x(s) surface. Many water utilities with MnO_x(s)-coated filter media have sought to convert to biofiltration for achieving other water treatment objectives. This involves the cessation of free chlorine addition to the media. A significant number of these utilities have observed substantial increases in the finished water Mn concentration after stopping free chlorine addition, resulting in consumer complaints about water discoloration.

机译：在水生植物过滤介质上存在氧化锰（MnO_x）促进有效的可溶性锰（Mn）的有益作用已为人所知，已有30多年的历史了。这样的涂层使自来水厂能够生产出锰浓度远低于Mn二级MCL的最终水。该去除过程要求在过滤器应用的水中存在游离氯，以促进MnO_x表面的持续再生。许多具有MnO_x涂层过滤介质的自来水公司已寻求转换为生物过滤以实现其他水处理目标。这涉及停止向介质中添加游离氯。在停止添加游离氯之后，大量的公用事业公司已观察到最终水中Mn浓度的大幅增加，导致消费者抱怨水变色。

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来源
《American Water Works Association Journal》 |2017年第supplpll1期|4-5|共2页
作者
William Knocke; Lindsay Swain; Amy Pruden-Bagchi; Joseph Falkingham;
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作者单位

Department of Civil Engineering Virginia Polytechnic Institute and State University Blacksburg Va.;

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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);
原文格式 PDF
正文语种 eng
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1. Low-temperature effects on the removal of soluble manganese in MnO_x(s)-coated media systems [J] . Journal of water supply . 2016,第8期

机译：低温对MnO_x涂层介质系统中可溶性锰去除的影响
2. Application of XPS and Solution Chemistry Analyses to Investigate Soluble Manganese Removal by MnO_x(s)-Coated Media [J] . Jose M. Cerrato, William R. Knocke, Michael F. Hochella, Environmental Science & Technology . 2011,第23期

机译：XPS和溶液化学分析在研究MnO_x涂层介质去除可溶性锰中的应用
3. Reduction of ripening time of full-scale manganese removal filters with manganese oxide-coated media [J] . Bruins Jantinus H., Petrusevski Branislav, Slokar Yness M., Journal of water supply . 2015,第4期

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4. MANGANESE DESORPTION FROM FILTER MEDIA: EXPERIENCES WITH BIOLOGICAL FILTRATION [C] . American Water Works Association Annual Conference . 2006

机译：过滤媒体的锰解吸：生物过滤的经验
5. Modeling and experiments in microchannels for the separation and detection of bacteria using antibody -coated filter and quantum dots [D] . Sharma, Narendra 2009

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6. Fecal indicator bacteria and virus removal in stormwater biofilters: Effects of biochar, media saturation, and field conditioning [O] . Benjamin P. Kranner, A. R. M. Nabiul Afrooz, Nicole J. M. Fitzgerald, 2012

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7. Reduction of ripening time of full-scale manganese removal filters with manganese oxide-coated media [O] . Bruins, J.H., Petrusevski, B., Slokar, Y.M., 2015

机译：用氧化锰涂层介质减少大型除锰过滤器的成熟时间
8. Manganese Dioxide Coated Filters for Removing Radium from Drinking Water [R] . Menetrez, M. Y. , Anderson, D. G. , Stahel, E. P. 1988

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The Effects of Manganese-Reducing Bacteria on Desorption of Manganese From MnO_x(s)-Coated Filter Media

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