摘要
为了提高介质阻挡放电(d ielectric barrier d ischarge,DBD)等离子体的处理效率,研究了内外介质组成分别为:(1)石英+石英;(2)陶瓷+石英;(3)陶瓷+陶瓷这3种情况下苯的降解情况。试验结果表明,在处理低浓度含苯废气时,陶瓷+陶瓷效果最好;陶瓷(内管)+石英(外管)在处理高浓度含苯废气时显示出优势。通过对气相产物和固相结焦产物的分析验证了DBD能有效降解苯,降解产物不会带来新的污染。进一步分析了实验条件和介质材料的变化对DBD降解苯的影响机理。
In order to enhance the DBD plasma's decomposition efficiency, we studied the discharge characteristics of two typical dielectric materials quartz glass and porcelain with combination of (1) quartz glass( inner tube ) + quartz glass ( exterior tube) ; ( 2 ) porcelain ( inner tube) + quartz glass ( exterior tube) ; ( 3 ) porcelain (inner tube) + porcelain(exterior tube) . "Porcelain + porcelain" showed the best function on decomposing benzene with low concentration while"porcelain (inner tube) + quartz glass (exterior tube)" was the most effective combination on treating high concentration benzene. We proved the decomposition of benzene won't cause new pollution to the environment by analyzing the gas-phased outcome and polymerized substances, then further studied the mechanism of dielectric materials'influences on the DBD plasma's decomposition of benzene.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2006年第7期67-72,共6页
Techniques and Equipment for Environmental Pollution Control