微秒脉冲放电在污水灭菌中的理化效应和应用研究综述

Review of physicochemical effect and application of microsecond pulse discharge in sewage sterilization

为了应对逐年增长的污水排放量,污水的消毒亟待发展新的技术与方法。近年来,多名国内外研究者对微秒脉冲放电灭菌技术展开了研究。文章分析了放电注入能量与微生物下降对数之间的关系;总结了微秒脉冲放电机理的研究现状;最后对4种主要理化过程及其灭菌效应进行了讨论。可以看到微秒脉冲放电污水灭菌是一种有前景的技术,有望在污水灭菌领域得到广泛的应用。然而由于其放电过程的复杂性,在投入应用前还有很多基础的科学问题及实用化问题有待研究。

In order to treat the increasing sewage year by year,new technologies and methods for sewage disinfection need to be developed.In recent years,many domestic and foreign researchers have carried out research on the microsecond pulse discharge sterilization technology.This study analyzed the relationship between the discharge injection energy reported in the literatures and the logarithm of microbial decline,and summarized the research status of the microsecond pulse discharge mechanism.Finally,the four main physicochemical processes and their sterilization effects were investigated.It indicated that the sewage sterilization technology by the microsecond pulse discharge was a promising technology and it could be expected to be widely used in the field of the swage sterilization.However,due to the complexity of the discharge process,there were still many basic scientific issues and practical issues need to be studied before the actual application.