摘要
基于高频介质阻挡放电(DBD)可产生高能电子、各种自由基与活性粒子的原理,应用高频DBD处理甲醛气体。对外加电源电压、甲醛气体质量浓度及体积流量3个水平因素的正交试验表明高频DBD可达到85%的甲醛降解效果,其中电压参数对降解效果的影响最大,流量次之,浓度最小。对放电处理后尾气成分的进一步测试分析表明尾气中臭氧质量浓度约0.002 mg/m3,远低于国家标准规定的0.16 mg/m3臭氧限量值。故高频DBD处理甲醛气体的降解效果好,且排放尾气中的臭氧含量对环境不造成影响。
The pollution of formaldehyde gas has become a main indoor pollutant in family, hospital and so on. It may be harmful to human health. In this paper high frequency dielectric barrier discharge （DBD） in decomposing formaldehyde gas is studied. The influences of the applied voltage, the concentration and the flow rate of the formaldehyde gas on the decomposition are experimentally investigated. It is shown from the results that the high frequency dielectric barrier discharge in decomposing formaldehyde may effective. The data can be the basic for further application research.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第12期37-38,44,共3页
High Voltage Engineering
基金
国家自然科学基金重点资助项目(50237010)
关键词
介质阻挡放电
处理
甲醛
降解
dielectric barrier discharge
treatment
formaldehyde gas
decomposition
