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论文类型：期刊论文

发表时间：2014-09-01

发表刊物：PLASMA PROCESSES AND POLYMERS

收录刊物：SCIE、EI、Scopus

卷号：11

期号：9

页面范围：842-849

ISSN号：1612-8850

关键字：gas-liquid diffuse discharges; nanosecond pulsed discharges; optical emission spectra; reactive oxygen species; water sterilization

摘要：In this paper, we present a large area nanosecond pulse gas-liquid diffuse discharge plasma with small flow rate of helium as working gas. The discharge images, the waveforms of pulse voltage & current, the emission spectra, and the gas temperature are measured or calculated. As a energy-efficient sterilization for sewage, the efficiency of sewage sterilization in both static liquid and flowed liquid are investigated. It is found that an optimal value of helium gas flow rate in the production of reactive oxygen species (OH, O) can be obtained when the He flow rate is 5ml min(-1), under this condition, high inactivation efficiencies of bacteria and fungus can be presented.