脉冲放电对铜绿微囊藻灭活效果研究  

Study of inactivation effect of Microcystis aeruginosa by pulse discharge

作　　者：王翠华[1,2] 李国锋[1] 李杰[1] 吴彦[1] 

机构地区：[1]大连理工大学静电与特种电源研究所,辽宁大连116024 [2]中国水产科学研究院东海水产研究所,上海200090

出　　处：《大连理工大学学报》2009年第1期38-43,共6页Journal of Dalian University of Technology

基　　金：国家自然科学基金资助项目(20377006);教育部博士学科点专项科研基金资助项目(2005141002)

摘　　要：为应对水体富营养化的日益严重,利用高压脉冲引发的气液两相放电产生的等离子体灭活铜绿微囊藻.研究了动态停留时间、分批次动态处理、不同稀释物以及处理方式对铜绿微囊藻叶绿素a去除效果的影响.研究结果表明:动态停留时间越长,处理当天藻液的叶绿素a去除率越高,而随着放置培养时间的增加,叶绿素a浓度下降的趋势也越明显;当动态停留时间相同时,一次处理比分批次处理的叶绿素a去除效果明显;用灭菌水稀释的藻液与用灭菌的NaCl溶液(质量分数为0.85%)稀释的藻液相比,前者叶绿素a的去除率远远高于后者;静态实验由于停留时间的相对增加,叶绿素a的去除率明显高于动态实验.本系统最佳的叶绿素a去除率高达97.13%,为灭活藻类提供了一种新方法.In order to solve the problem of the increasing labefaction of the eutrophic water, the inactivation of Microcystis aeruginosa （M. aeruginosa） with plasma generated by pulse discharge is proposed. Effects of various parameters such as dynamic treatment time, separated dynamic treatment, different diluted substance and treatment methods on the changes of the chlorophyll-a （Chl-a） of M. aeruginosa were investigated. Experimental results show that the removal efficiency of Chl-a increases after treatment and the Chl-a concentration obviously decreases with the increase of dynamic treatment time. At the same treatment time, the decrease of Chl-a concentration of the one dynamic treatment is faster than that of separated twice dynamic treatment. The removal efficiency of Chl-a diluted by sterilized deionized water is higher than that diluted by 0.85 % sterilized physiological saline. The Chl-a concentration under the static experimental condition is lower than that under the dynamic experimental condition. The optimal removal efficiency of Chl-a is high to 97.13% in the system and it is a new method to inactivate algae.

关 键 词：脉 中放电 铜绿微囊藻 叶绿素A浓度 去除率 

分 类 号：TM89[电气工程—高电压与绝缘技术] X7[环境科学与工程—环境工程]