脉冲放电处理苯酚废水降解过程的分析  

Degradation of phenol in wastewater initiated by pulse discharge

作　　者：兰生[1,2] 杨嘉祥[1] 蒋杰灵[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150040 [2]黑龙江科技学院电气与信息学院,哈尔滨150027

出　　处：《环境科学学报》2009年第6期1208-1213,共6页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金资助项目(No.50777014);高等学校博士点资助项目(No.20040214003);黑龙江省教育厅科学研究项目(No.11521243)~~

摘　　要：由于水中脉冲放电产生等离子体通道,水会发生复杂的等离子体化学反应,产生各种自由基,本文检测到放电形成的羟基自由基.对苯酚废水进行放电降解研究,利用紫外分光计、有机碳分析仪、液相质谱联用仪和气相质谱仪等仪器对降解产物进行检验.结果表明,苯酚废水在放电作用下生成的中间产物为:多羟基苯酚、酮、醛和酯等,最终产物为二氧化碳和水.此结果对苯酚废水在脉冲放电,甚至直流或交流电下的苯酚降解机理的进一步研究有参考价值.A pulse discharge in water creates a plasma channel which causes complicated chemical reactions, and produces various radicals. Hydroxyl radical was detected in our system. An ultraviolet spectrophotometer, total organic carbon analyzer, gas chromatograph - mass spectrometer, liquid chromatograph-mass spectrometer and other instruments were employed for detection of reaction products in the treatment of phenol wastewater. The intermediate products are polyphenols, ketones, aldehydes, esters etc. and the final products are carbon dioxide and water. The results in this paper are reference values for phenol degradation in water initiated by pulse discharge and even phenol degradation under DC or AC current.

关 键 词：水中脉冲放电 羟基自由基 苯酚降解 副产物 降解过程 

分 类 号：X703[环境科学与工程—环境工程]