混凝沉淀-微电解-Fenton氧化处理颜料废水的研究  

Research on the treatment of dyeing wastewater by coagulating sedimentation-microeletrolysis-Fenton oxidation process

作　　者：赵选英 戴建军 杨峰 郑刚 李鹏章 

机构地区：[1]南京大学盐城环保技术与工程研究院,江苏盐城224001 [2]江苏省产业技术研究所水环境工程技术研究所,江苏盐城224001

出　　处：《工业水处理》2018年第1期87-89,102,共4页Industrial Water Treatment

摘　　要：对某颜料企业高浓度洗涤废水进行了混凝沉淀、微电解-Fenton氧化的处理研究。结果表明,在pH=12,PAC投加量为250 mg/L时,COD、LAS、SS去除率分别为47.8%、47%、52%。微电解-Fenton氧化的最佳条件为:铸铁粉投加量为0.3 g/L,微电解反应时间为1 h,双氧水投加量为10 mL/L,Fenton氧化时间为3 h。研究发现将混凝沉淀置于微电解-Fenton氧化前可提高处理效率,COD、LAS总去除率分别高达77.9%、98%。The research on the coagulating sedimentation-microeletrolysis-Fenton oxidation process for treating high- ly concentrated washing wastewater in a pigment enterprise has been accomplished. The results show that when pH= 12, polyaluminium chloride dosage is 250 mg/L, removing rates of COD, LAS, and SS are 47.8% ,47% and 52% res- pectively, the optimal conditions of microeletrolysis-Fenton oxidation process are as follows ： the dosage of cast iron powder is 0.3 g/L, reaction time of microelectrolysis 1 h, dosage of hydrogen peroxide 10 mL/L, and oxidation time of Fenton 3 h. The results show that setting coagulation sedimentation ahead of microelectrolysis-Fenton oxidation can improve the efficiency of wastewater treatment. The total removing rates of COD and LAS are as high as 77.9% and 98% respectively.

关 键 词：混凝沉淀 铁碳微电解 FENTON氧化 污泥呼吸 生物毒性 

分 类 号：X703.1[环境科学与工程—环境工程]