高频电场对微生物传质影响的静态实验研究  

Effects of high-frequency electric field on microbial mass transfer in static state

作　　者：王恭[1] 闫英杰[1] 张叶[1] 周昊[1] 曹生现[1] 王建国[1] 

机构地区：[1]东北电力大学自动化工程学院,吉林吉林132012

出　　处：《化学工程》2014年第12期6-10,共5页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(51176028;51376042);吉林省科技发展计划项目(20125050);吉林市科技发展计划项目(201262504)

摘　　要：为探索高频电场抑垢缓蚀机理,采用自制的高频电场装置,对含有微生物的自来水水质进行加高频电场处理静态金属挂片对比实验,考察了高频电场对黏液形成菌和铁细菌的传质过程及该水质中碳钢腐蚀速率的影响情况。在一定实验条件下(30℃恒温培养,静止),分别对未加电场处理和加电场处理实验水质的细菌总数、p H值、氧化还原电位(ORP)、电导率、碳钢挂片腐蚀速率等参数进行检测分析。实验结果表明:高频电场对上述各水质参数的变化情况和微生物传质有一定影响,高频电场破坏了微生物的生存环境,使其生长特性发生了改变,抑制了微生物的繁殖;对含有微生物的水质中金属的腐蚀也有抑制作用,因此,高频电场具有良好的抑菌、抑垢、缓蚀性能,在循环冷却水系统中具有广阔的应用前景。High frequency electric field device was developed in order to explore the mechanism of anticorrosive and restraining fouling for the high-frequency electric field , which is adopted to do electromagnetic process on the metal pieces in the water with microbe .The effect of heterotrophic bacteria and iron bacteria on the mass transfer process and the corrosion rate by high-frequency electric field was investigated . It was detected that water parameters contained the total number of bacteria , pH, ORP and corrosion rate both in magnetized water quality and unmagnetized treatment in certain experimental conditions （30℃incubation, static）.The experimental results show that high-frequency electric field has a certain influence on the various water quality parameters and microbial mass transfer .The high-frequency electric field can destroy the living environment of microorganisms , change the microbial growth characteristics and restrain the propagation of microorganisms .The high-frequency electric field shows better antimicrobial , fouling and corrosion inhibiting performance .Thus it has a broad application prospects in the circulating cooling water system .

关 键 词：高频电场 传质 腐蚀速率 细菌总数 

分 类 号：TQ085.4[化学工程]