Electrochemical Catalytic Oxidation Treatment of Coking Wastewater RO Concentrated Brine
Electrochemical oxidation has attracted wide attention in wastewater treatment because of its strong oxidation performance and ease of control.The electrochemical degradation of NH3-N and COD were investigated at different anodes materials and current densities The electrochemical oxidation using Ti/Ru02-Ir02 anode was effective and promising for advanced treatment of coking wastewater RO brine.COD and NH3-N concentration degraded 86% and 100% in 80min at the current density of 5 mA cm-2.Current density is the most important factor of organic degradation and energy consumption When the current density was 10mA cm-2,the COD removal ratio quickly increased to 52.94% in 20min reaction time,but under high current density,the life of the electrode will be reduced.When the current density is too low,the electrolytic reaction time to reach standard needs to be 2 h or more,this will perpetuate the equipment bulky,increase the cost of the equipment.The optimal current density is 5.0-7.5 mA cm-2.Unit per COD energy consumption is 114.4 kWh kgCOD-1,and unit per cubic meter wastewater energy consumption is 5.9 kWh m-3 at the current density of 5 mA cm-2.
Coking wastewater RO concentrated brine Electrochemical catalytic oxidation Ti/Ru02-Ir02 anode energy consumption
Gao Kangle Wang Haidong Lu Bote Tang Fengjun
Central Research Institute of Building and Construction Co., Ltd. MCC Group, Beijing, 100088, P. R. Panggang Group Company LTD. Panzhihua, 61500, P.R. China
国际会议
2013青岛国际脱盐大会(Qingdao International Conference 2013 on Desalination and Water Reuse)
青岛
英文
71-76
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）