电解氧化处理难降解垃圾渗滤液研究

Study on treatment of nondegration landfill leachate by electrolytic oxidation process

采用连续式电解槽对垃圾渗滤液进行电解催化处理,考察极板间距、电流密度、电导率[Cl-]浓度对电解效果的影响。结果表明,当添加的[Cl-]6000 mg/L,在电解60 min时,对初始COD小于3000 mg/L的中等浓度渗滤液有较好的处理效果,COD和NH3-N的去除率分别达88.9%和97.3%,能耗为2.75 kWh/m3。为中试和工业设计应用提供了参考。

A continuous flow electrolytic through system was studied for the treatment of landfill leachates. The influences of electrode distance, current densities and chloride concentration on removal efficiencies were studied. The results showed that electrolytic oxidation process was effective on treatment of middle strength landfill leachates, when COD was less than 3000 rag/L, added chloride concentration was 6000 rag/L, the time was 60 minutes. The removal rates of COD and NH3-N can come up to 88.9% and 97.3% ,respectively,the energy consumed was 2.75 kWh/m^3. A valuable reference could be provided for a pilot scale research and industrial application.