气液两相流介质阻挡放电降解苯酚废水的研究  

Removal of Phenol in a Gas-Liquid Two Phase Dielectric Barrier Discharge Reactor

作　　者：程茜[1] 孙玉[1] 孙基惠 刘亚男[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《水处理技术》2016年第12期33-37,共5页Technology of Water Treatment

基　　金：国家自然科学基金项目(51578122);教育部新世纪优秀人才计划(NCET-12-0826);上海浦江人才计划

摘　　要：本实验以苯酚为目标污染物,采用自制的气液两相流介质阻挡反应器对苯酚进行处理,研究了放电电压、气体流量、苯酚溶液初始浓度和初始pH对处理效果的影响,通过分析能量密度和降解动力学等因素,对反应条件进行了优化。结果表明,苯酚的去除率随放电电压、气体流量和溶液初始pH的增大而提高,随溶液初始浓度的增大而降低。在放电电压为60 kV、气体流量为60 mL/min、苯酚溶液初始浓度为100 mg/L、初始pH=10.0的条件下处理60min后,介质阻挡放电等离子体对苯酚的去除率可达60.15%,能量密度为2 404.79 J/L。In this study, phenol was chosen as the target pollutant to be removed in aqueous solution by a self-designed dielectric barrier discharge reactor. The effects ofdischarge voltage, gas flow rate, phenol initial concentration and initial pH on degradation were examined. According to the analysis of energy density and degradation kinetics, reaction conditions were optimized. Results showed that the degradation of phenol increased with the increase of voltage, gas flow rate and initial pH, and decreased with the increase of initial concentration. 60.15% of the phenol in the contaminated water was degraded in 60 min with a voltage of 60 kV, an airflow of 60 mL/min, initial phenol concentration of 100 mg/L, initial pH of 10.0 and an energy density of 2 404.79 J/L.

关 键 词：介质阻挡放电 气液两相流 苯酚 能量密度 降解动力学 

分 类 号：X703.1[环境科学与工程—环境工程]