乙酰磺胺酸钾废水的预处理工艺优化研究

在确定微电解、Fenton氧化、混凝沉淀各自最佳反应条件的基础上,进一步研究了单独混凝、H2O2强化微电解工艺对废水的处理效果。试验结果表明,单独混凝工艺在最佳条件下COD、NH3-N、TP的平均去除率分别为16.9%、20.1%、59.4%;强化微电解工艺在最佳反应条件下,COD、NH3-N、TP去除率分别为32%、-4.5%、69%。通过对比试验发现,微电解/Fenton氧化/混凝沉淀联合工艺效果最好,COD平均去除率能达到55%。对该化工厂的废水预处理工艺提出改造方案,初步预算了工程改造投资及药剂费用。

Optimized Study on Pretreatment Process of Acesulfame-K Wastewater

Process of independent coagulating sedimentation and enhanced micro-electrolysis via H2O2 was studied in wastewater treatment on the basis of investigating the optimum parameters of mciroelectrolysis,Fenton oxidation and coagulating sedimentation process.Results indicated that average removal of COD,NH3-N and TP was 16.9%,20.1% and 59.4% respectively on the optimum conditions of independent coagulation process,while removal of COD,NH3-N and TP was 32%,-4.5% and 69% in H2O2 enhanced microelectrolysis test.Comparatively the combined process of microelectrolysis-Fenton oxidation-coagulation has the best removal effect and its COD removal could reach 55%.The transformation schemes on the original process flows for pretreatment were proposed,and then the cost for the process transformation investment and reagents expense were preliminarily estimated.