摘要
研究了以焦粒为粒子电极的流化床三维电极反应器对二级生化处理后的焦化废水进行深度处理。结果表明:采用以焦粒为粒子电极的流化床三维电极反应器能有效降解废水中的有机物,COD去除率依赖于粒子投加量、电流密度、电导率、pH值、曝气量等操作参数的影响。在电导率(以S计)为7.1 m.cm-1,曝气量为160 L.h-1,电流密度(以A计)为48 m.cm-2,pH值为5.0,投加量30 g.L-1时,电解30 min,COD的去除率超过60%,表明流化床三维电极反应器在焦化废水深度处理中有很好工程应用前景。
Advanced treatment of secondary bio-treatment coking wastewater by three-dimensional fluid electrode using coking particles was studied.The experimental results showed that the refractory organics in coking wastewater can be effectively removed by this process,and COD removal rate was affected by the operating parameters,such as coking doze quantity,current density,supporting electrolyte,initial pH,aeration amount.For electrolyses under the conditions of supporting electrolyte： 7.1 mS.cm-1,aeration amount： 160 L.h-1,current density： 48 mA.cm-2,initial pH： 5.0,and coking doze quantity： 30 g.L-1,the electrochemical reactor could have a COD removal rate of more than 60%,which revealed great potential of three-dimensional fluid bed electrode reactor in engineering application as an advanced treatment of coking wastewater.
出处
《生态环境学报》
CSCD
北大核心
2012年第2期370-374,共5页
Ecology and Environmental Sciences
基金
国家科技支撑计划课题(2012BAC02B04)
关键词
焦化废水
流化床三维电极反应器
COD去除率
深度处理
coking wastewater
three-dimensional fluid bed electrode reactor
COD removal rate
advanced treatment
