混凝—Fenton法深度处理维生素B_(12)废水  

Advanced Treatment of Vitamin B_(12) Wastewater by Coagulation-Fenton Oxidation Process

作　　者：陈琳[1] 许柯[1] 任洪强[1] 丁丽丽[1] 耿金菊[1] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210046

出　　处：《化工环保》2014年第2期119-123,共5页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金青年基金项目(51108230);国家高技术研究发展计划项目(2009AA063901)

摘　　要：采用混凝—Fenton法深度处理维生素B12废水,考察各操作参数对COD和色度去除效果的影响。实验结果表明:当混凝pH 4.5、聚合硫酸铁加入量300 mg/L、氧化pH 4.0、H2O2加入量420 mg/L、FeSO4·7H2O加入量334 mg/L、Fenton反应时间3 h时,混凝—Fenton法对维生素B12废水的深度处理效果较好,总COD和总色度的去除率分别为62.1%和90.0%;与Fenton法相比,混凝—Fenton法COD和色度去除率的提高率分别为17.4%和13.8%,且药剂成本降低了21.6%。Bio-treated vitamin B12 wastewater was treated by coagulation-Fenton oxidation process.The factors affecting COD and chroma removal were studied.When the coagulation pH is 4.5,the PFS dosage is 300 mg/L,the Fenton oxidation reaction pH is 4.0,the H2O2 dosage is 420 mg/L,the FeSO4 · 7H2O dosage is 334 mg/L and the Fenton oxidation reaction time is 3 h,the treatment effect of the wastewater is better,the total removal rates of COD and chroma are 62.1％ and 90.0％ respectively.Compared with Fenton oxidation process,the increasing rates of COD and chroma removal rate by the process are 17.4％ and 13.8％ respectively,while the reagent cost is decreased by 21.6％.

关 键 词：混凝 芬顿试剂 维生素B12废水 生化处理 

分 类 号：X703[环境科学与工程—环境工程]