Abstract:

The engineering design of the newly-built wastewater station of electrophoresis workshop at an electronics company, in Dalian, has been accomplished. Its designed treatment scale is 24 m³/d. According to the quality and quantity of wastewater, a process consisting of wastewater regulation+sequencing batch Fenton catalytic oxidation+coagulation sedimentation+sand filtration is used. The operation results show that the removing rates of COD_Cr and SS are 90.9% and 98.3%, respectively. The automatic degree of the process is high. Guard-free operation can be realized, in addition to replenishing chemicals regularly, cleaning electrodes and carting off dry sludge. After a 300 d steady running, the water quality of the treated effluent can steadily reach and is superior to the Integrated Wastewater Discharge Standard of Liaoning Province(DB 21/1607—2008), and the water treatment cost is about CNY3.89 per ton.

Key words: sequencing batch Fenton process, electrophoresis wastewater, engineering design

摘要：

对大连某电子公司新建电泳车间废水站进行了工程设计，设计处理规模为24 m³/d。根据废水水质、水量特点，采用废水调节+序批式Fenton催化氧化+混凝沉淀+砂滤的工艺流程。工程运行结果表明，COD_Cr、SS去除率分别为90.9%、98.3%。工程自动化程度高，除定期药液补充、清洗电极及干泥外运之外，实现了无人值守。经过300 d的稳定运行，系统处理出水水质可稳定达到并优于《辽宁省污水综合排放标准》（DB 21/1627—2008）的要求，吨水处理费用约3.89元。

关键词: 序批式Fenton工艺, 电泳废水, 工程设计

CLC Number: 

• X703