摘要
采用混凝-Fenton组合工艺对漳州九龙岭垃圾填埋场的渗滤液经NF+RO处理后膜滤浓缩液进行中试试验,探讨了PAC、PAM、Fe SO4·7H2O和H_2O_2的投加量对处理效果的影响及反应机理,并设计各工艺单元参数。结果表明:混凝工艺药剂最佳投加量为PAC 2 000 mg/L、PAM 9 mg/L;Fenton工艺的氧化剂最佳投加量为Fe SO4·7H2O 1.6 g/L、H_2O_28 m L/L。膜滤浓缩液经处理后,出水COD约300 mg/L,色度约30,平均去除率分别达76.8%和95.4%,处理费35.52元/t,试验结果为同类膜滤浓缩液提供了经济可行的处理方法和工艺设计依据。
The Coagulation - Fenton treatment of landfill leachate concentrates was investigated in this pilot experiment, which were generated from nano - filtration and reverse osmosis treated landfill leachatefrom ZhangzhouJiulong Mountain. The treatment efficiency and mechanism of concentrates about PAC, PAM, FeSO4 ~ 7H20 and H202 dosages were studied, moreover, the specific parameters of each treatment process unit were put forward. The results indicated that the optimum dosages of coagula- tion process is PAC 2 000 mg/L, PAM 9 mg/L, respectively, and Fenton reaction is FeSO4·7H2O 1.6 g/L, H2O2 8 mL/L, respectively. After coagulation and Fenton reaction, the effluent content and removal were COD about 300 mg/L, 76.8%, and chroma about 30,95.4% ,which cost 35.52 yuan for per ton of concentrates. It is proved to be an economic and technology feasi- ble method of the landfill leachate concentrate treatment.
出处
《环境科学与管理》
CAS
2016年第11期75-79,共5页
Environmental Science and Management
基金
高校产学合作项目(2016Y4002)
