纳米Fe_2O_3非均相催化剂制备及在制革废水深度处理中的应用  

Preparation of nano-Fe_2O_3 heterogeneous catalyst and its application in advanced treatment of tannery wastewater

作　　者：赵奂 刘树帅 史瑞明 ZHAO Huan;LIU Shushuai;SHI Ruiming(W-Startech(Beijing)Environmental Technology Co.Ltd.,Beijing 100010,China)

机构地区：[1]威水星空(北京)环境技术有限公司,北京100010

出　　处：《中国皮革》2018年第12期54-57,共4页China Leather

摘　　要：以FeCl_3·6H_2O、尿素、四丁基溴化铵以及乙二醇为原料制备固体粉末,并煅烧固体粉末制备纳米Fe_2O_3催化剂,使用X射线衍射仪和透射电子显微镜进行表征,催化处理皮革废水生化后出水。结果表明:纳米Fe_2O_3非均相催化剂能够高效催化H_2O_2产生,从而有效去除皮革废水生化后出水的COD值和色度。当煅烧温度为550℃、煅烧时间为4h时,纳米Fe_2O_3具有最佳的催化效果。H_2O_2的加入量影响催化剂的处理效果,在废水pH值为5～8,处理时间为0. 5h,H_2O_2加入量为1mL/L时COD去除率接近60%,出水COD值在50mg/L内;色度在30以下,色度去除率大于70%,出水满足国家标准GB 30486-2013的排放要求。Nano-Fe2O3catalyst was prepared by calcination method,using FeCl3·6H2O,urea,fourbutyl bromide and ethylene glycol as.main ingredients.The nano-Fe2O3was characterized by-X-ray diffraction and transmission electron microscopy.Leather secondary effluent was treated by catalyzer.The results show that nano-Fe2O3catalyst can effectively reduce the COD and colorlty of biochemical.leather secondary effluent,when the temperature is 550℃ and time is 4h,the processing effect turns to be the best.The treatment result is influenced by the,content of H2O2 addition.When the pH value of the wastewater is within 5-8,processing time is 0.5h and H2O2 addition is lmL/L,the COD removal rate exceeds 60%,the effluent COD value below 50mg/L,colority below 30 and colority removal rate is greater than 70%.The effluent reaches the requirement of standard GB 30486-2013.

关 键 词：皮革废水 纳米Fe2O3非均相催化剂 类芬顿氧化 材料表征 COD 

分 类 号：TS59[轻工技术与工程—皮革化学与工程]