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%。
关键词:
混凝沉淀,
铁碳微电解,
Fenton氧化,
污泥呼吸,
生物毒性
Abstract: 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.
Key words:
coagulating sedimentation,
iron-carbon microeletrolysis,
Fenton oxidation,
sludge respiration,
biotoxicity
中图分类号:
赵选英, 戴建军, 杨峰, 郑刚, 李鹏章. 混凝沉淀-微电解-Fenton氧化处理颜料废水的研究[J]. 工业水处理, 2018, 38(1): 87-89,102.
Zhao Xuanying, Dai Jianjun, Yang Feng, Zheng Gang, Li Pengzhang. Research on the treatment of dyeing wastewater by coagulating sedimentation-microeletrolysis-Fenton oxidation process[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(1): 87-89,102.