几种焦化废水深度处理技术的比较

分别采用Fenton试剂氧化法、固定床离子交换树脂吸附法和流化床磁性树脂吸附法对某焦化厂焦化废水生化工艺出水进行深度处理.试验结果表明:Fenton试剂氧化法处理后出水COD去除率最高达75.4％,色度去除率达89.1％；固定床离子交换树脂吸附法COD去除率为49.4％,色度去除率为96.5％；流化床磁性树脂吸附法COD去除率为58.2％,色度去除率为90.2％.Fenton试剂氧化法COD去除率较高,固定床离子交换树脂吸附法和流化床磁性树脂吸附法色度去除率较高.综合考虑,Fenton试剂氧化法具有更高的工程应用价值.

Comparison of Several Processes for Advanced Treatment of Coking Wastewater

Bio-treated coking wastewater from a coke plant was treated respectively by Fenton reagent oxidation,ion exchange resin adsorption in fixed bed and magnetic resin adsorption in fluid bed.The test results show that:The removal rates of COD and chroma of the effluent from Fenton reagent oxidation are 75.4% and 89.1%;those from ion exchange resin adsorption in fixed bed are 49.4% and 96.5%;And those from magnetic resin adsorption in fluid bed are 58.2% and 90.2%.These results indicate that Fenton reagent oxidation process is better for the removal of COD,however,the processes of ion exchange resin adsorption in fixed bed and magnetic resin adsorption in fluid bed are better for the removal of chroma.By comprehensive consideration,Fenton reagent oxidation process is more available for engineering application.