等离子体反应器结构与电极参数对灭藻效果的影响  

Effect of the Structural and Electrode Parameters on Plasma Reactor of Algal Inactivation

作　　者：王翠华[1] 沈新强[1] 吴彦[2] 

机构地区：[1]中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090 [2]大连理工大学静电与特种电源研究所,大连116024

出　　处：《高电压技术》2009年第5期1083-1087,共5页High Voltage Engineering

基　　金：中央级公益性科研院所基本科研业务费(2008M11);教育部博士点基金(2005141002)~~

摘　　要：随着水体富营养化的日益严重,现有的灭藻方法已不能满足目前的水处理要求,为此,研究了放电等离子体反应器中电介质位置与数目(结构参数)、放电电极直径、材料以及数目(电极参数)对灭活铜绿微囊藻的影响。结果表明,在单电极放电系统中,无论双电介质位于高低压电极何处,系统均不能提高铜绿微囊藻灭活率,且双电介质系统放电不稳定;电极直径大小与藻灭活率高低不成正比,而是存在一个合适值;多电极放电系统中,放电处理40min后放置培养到第5天时,藻的灭活率为93.4%,而单电极系统的为87.31%;随着放电电极数目的增加,藻的灭活率从3根的88.52%提高到6根的93.40%,但电极材料的不同对藻灭活程度的影响不明显。To check the effect of the reactor structural and electrode parameters on the removal efficiency of algae, the effects of the location of the double dielectric layers, single or double dielectric layers, discharge electrode diameter, electrode material and electrode number on the inactivation of Microcystis aeruginosa （M. aeruginosa） were discussed in the plasma reactor. Experimental results show, in single electrode discharge system, there were unobvious differences in the inactivation efficiency of M. aeruginosa between in single and double dielectric layers system, but discharge stability in double dielectric layers system was worse than that in single dielectric layer system. There was not the linear relationship between discharge electrode diameter and the inactivation efficiency of M. aeruginosa, but there has to be a reasonable value for discharge electrode diameter. In multi-electrodes discharge system, more than 93.40% of optical density was removed at the end of the fifth day incubation as a function of 40 min treatment, while 87.31% in single electrode system. The inactivation efficiency of M. aeruginosa was increased from 88.52% to 93.40% by the increasing number of copper electrode from 3 to 6. There were unobvious changes in the discharge electrode material to the inactivation efficiency of M. aeruginosa.

关 键 词：等离子体反应器 铜绿微囊藻 结构参数 电极参数 放电电极 灭活率 

分 类 号：TN136[电子电信—物理电子学]