催化型微电解-BAF工艺对垃圾渗滤液深度处理的研究  

Advanced treatment of landfill leachate by integrated process of catalytic micro-electrolysis and BAF

作　　者：谢武[1] 王金菊[1] 杨春平[2] 

机构地区：[1]长沙环境保护职业技术学院环境工程系,湖南长沙410007 [2]湖南大学环境科学与工程学院,湖南长沙410007

出　　处：《湖南科技大学学报（自然科学版）》2011年第1期110-114,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：湖南省教育厅科学研究项目(10C0019)

摘　　要：采用催化型微电解一BAF组合工艺对垃圾场的老龄渗滤液进行深度处理.通过静态正交试验确定废铁屑和焦炭最佳投加体积比为l︰3;调酸最佳反应pH值为3;调氧化剂H2O2和COD的最佳质量比1.5︰1;调碱最佳反应pH值为7.5;微电解最佳反应时间为1.5 h;调氧化剂H2O2后沉淀最佳反应时间为1.5 h;调碱后沉淀最佳反应时间为2.0 h,试验中COD和色度去除率分别高达85%和95%;BOD5/COD从0.03提高到0.35左右,改善其可生化性为后续生化处理创造良好的条件.催化型微电解反应后使用BAF生物法处理,其出水水质达到垃圾渗滤液国家排放标准.Applying integrated process of catalytic micro-electrolysis-BAF to treat matured landfill leachate further.By orthogonal array experiments,it was confirmed that the optimal volume ratio of iron slag and coke was 1∶3,the optimum PH under the acid condition was 3,the optimum weight ratio of H2O2 and COD was 1.5∶1,the optimum PH under the alkaline condition was 7.5,the optimum reaction period of the micro-electrolysis was 1.5h,the optimum depositing period after adding H2O2 was 1.5 h,the optimum depositing period after regulating the wastewater under the alkaline condition was 2.0 h,removal rates of COD and chroma could reach 85% and 95% respectively,BOD5/COD was increased from 0.03 to 0.35 in continuous feed experiments.It improve biodegradable ability of the leachate in order to create a suitable condition for biological-chemical treatment next step.By this integrated process,the discharge of matured landfill leachate finally was up to the related national standards.

关 键 词：焦炭 废铁屑 微电解 双氧水 BAF 垃圾渗滤液 

分 类 号：X703[环境科学与工程—环境工程]