A multi-wire-to-cylindrical type packed-bed plasma reactor for the inactivation of M. aeruginosa

文献类型： 外文期刊

第一作者： Wang, Cui-hua

作者： Wang, Cui-hua;Shen, Xin-qiang;Wu, Yan

作者机构：

关键词： The multi-wire-to-cylindrical type;Packed-bed plasma reactor;M. aeruginosa;The removal efficiency

期刊名称：JOURNAL OF ELECTROSTATICS （ 影响因子：1.775； 五年影响因子：1.807 ）

ISSN： 0304-3886

年卷期： 2010 年 68 卷 1 期

页码：

收录情况： SCI

摘要： Eutrophication in drinking water supplies brings about serious impact on the drinking water safety. In this study, a new multi-wire-to-cylindrical type packed-bed plasma reactor has been proposed and experimentally investigated its ability to control excessive growth of Microcystis aeruginosa (M. aeruginosa). Experimental results show the removal efficiency of M. aeruginosa and the inactivation constant were increased with the increased electrode number and air now rate. More than 93% of optical density was removed at an air flow rate of 0.75 m(3)/h with treatment for 40 min at the end of the Fifth day and the inactivation constant 16.20 was obtained in the multi-wire-to-cylindrical type packed-bed plasma reactor with 3 min diameter 6-wire high-voltage electrodes: the difference in the electrode material on the removal efficiency of M. aeruginosa was unobvious, but the effects Of pulse repetitive rate and applied peak pulse voltage on the inactivation of M. aeruginosa were significant. The changes in the visible spectra of M. aeruginosa solution demonstrated that photosynthetic pigments, such as chlorophyll-a, phycocyanins, carotenoids have been damaged, indicating the inhibitive behaviors of discharge on the algal growth. These results implicate that M. aeruginosa cells were inactivated by a multi-wire-to-cylindrical type packed-bed plasma reactor, demonstrating the considerable potential Of Such an alternative process for efficient water purification. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

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