高铁酸钾氧化-沸石吸附联合处理垃圾渗滤液  

Combined Treatment of Landfill Leachate by Potassium Ferrate Oxidation and Mullock Adsorption

作　　者：肖瑜[1] 章波[1] 苏诚[1] 彭雪妍[1] 胡祎[1] 李中秋[1] 周海妙[1] 

机构地区：[1]桂林理工大学广西环境工程与保护评价重点实验室,广西桂林541004

出　　处：《桂林理工大学学报》2011年第1期123-127,共5页Journal of Guilin University of Technology

基　　金：广西自然科学基金项目(2010GXNSFA013014);广西高校人才小高地建设创新团队资助计划项目

摘　　要：采用高铁酸钾氧化-沸石吸附联合处理工艺处理垃圾填埋场新鲜渗滤液,筛选了氧化和吸附工段最佳的运行方式和参数:氧化阶段,高铁酸钾的用量为12 g,反应时间为195 min,pH为10;吸附阶段,pH值为7,沸石投加量为100 g/L,吸附时间为7 h。试验结果表明:最佳氧化条件下,高铁酸钾对CODCr去除率达到80%,对氨氮去除率达到95%;氧化处理出水经沸石吸附处理后,CODCr去除率达到98%,对氨氮的去除率则在99%,处理后的垃圾渗滤液达到了CODCr和氨氮的排放标准(GB 16889—2008)。The landfill leachate is sequentially treated by Potassium Ferrate oxidation and mullock adsorption.The best methods and parameters of operation in the oxidation and adsorption sections are screened： Oxidation stage,the dosage of potassium ferrate 12 g,when reaction time is 195 minutes,pH=10;adsorption stage,pH=7,zeolite dosage of 100 g/L,adsorption time 7 h.Experimental results show that under the best oxidation conditions,the CODCr removal by Potassium Ferrate oxidation reaches about 80% while the ammonia nitrogen removal reaches more than 90%.In further treatment was continued by mullock,the CODCr removal by adsorption reaches above 98%,while the ammonia nitrogen removal reache 99%.In the Oxidation and adsorption process,both leachate CODCr and ammonia nitrogen are up to the emission standard（GB 16889—2008）.

关 键 词：垃圾渗滤液 高铁酸钾 沸石 

分 类 号：X703.1[环境科学与工程—环境工程]