微电解-Fenton法预处理制革废水  

Pretreatment of Tannery Wastewater by Micro-Electrolysis and Fenton Oxidation Process

作　　者：李艳[1] 荆国华[1] 董梅霞[1] 

机构地区：[1]华侨大学材料科学与工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2008年第2期270-272,共3页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金项目(D0710019);福建省科技计划重大项目(2005HZ03-3)

摘　　要：采用静态实验,考察微电解-Fenton法预处理制革废水中各种工艺参数对处理效果的影响.确定最优条件:微电解进水pH值为3,反应时间为1 h,Fe和C的体积比为1∶1,铁屑的投加量为200 g;Fenton反应的H2O2的投加量为3 mL,反应时间为50 min.在此条件下,制革废水经微电解-Fenton法预处理,化学需氧量去除率能达到80%左右,出水水质得到较大改善,为后继生物处理提供必要的条件.The effect of various reaction conditions and process parameters on pretreatment efficiency of tannery wastewater by micro-electrolysis and Fenton reagent was investigated, and the optimum operation parameters were obtained by batch experiments. The results indicated that under optimal condition when the reaction time for micro-electrolysis was 1 h, pH value of wastewater was 2, the ratio of Fe to C volume was 1 ： 1, the dosage of scrap iron was 200 g · L^-1 ,as well as when the dosage of H2O2 （30%） for Fenton oxidation process was 3 mL and the reaction time was 50 min, the removal efficiency of CODcr was raised to approximately 80% in raw wastewater. The quality of tannery wastewater has been improved dramatically by the combined technology of micro-electrolysis and Fenton reagent, which makes the wastewater more favorable for biological treatment.

关 键 词：微电解 FENTON反应 制革废水 工艺参数 

分 类 号：O646.6[理学—物理化学] X794[理学—化学]