摘要
采用混合气液两相放电的方法来处理水中的有机物.结果表明,这种新型的水处理方法对于苯酚具有较好地去除效果.随着电压的增加和空气的通入,苯酚的去除率都有所增加.对放电区域内产生的活性物种———过氧化氢和臭氧进行了定量的测定,并发现随着电压和空气的通入量的增加,这2种物质的量都有所增加.对于反应过程中的能耗进行分析得到随着电压的增加,能耗增加的幅度要大于苯酚降解率增加的幅度,能量效率增加较小.空气的通入增加了能耗,输入总能量中一部分能量使反应溶液温度升高,导致了能量的损耗.
The method of hybrid gas-liquid electrical discharge was investigated for the removal of phenol.The results indicate that this new method can remove phenol in water effectively.The removal rate increases with increasing voltage and air aeration.The production quantity of H2O2 and O3 is measured respectively in the discharge region and the production quantity increases with increasing of voltage and air aeration.The energy consumption analysis indicates that with increasing the voltage,the increase extent of the phenol removal rate is smaller than the energy＇s,so the increase of energy efficiency is very small.Air aeration increases the energy consumption.At the same time, a considerable part of energy in the overall input energy makes the temperature of the solution increase,and more energy is transformed into heat,which leads to the waste of energy.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2007年第9期2014-2019,共6页
Environmental Science
基金
高等学校科技创新工程重大项目培育资金项目(705013)
关键词
混合气液两相放电
活性氧化铝
苯酚
过氧化氢
臭氧
hybrid gas-liquid electrical discharge
activated alumina
phenol
peroxide
ozone
