Abstract:

The reconstruction of dyeing-weaving wastewater treatment in a dyeing-weaving plant is presented. The dyeing-weaving wastewater has been treated with the process of hydrolytic acidification-contact oxidation-coagulation and air floatation. The running results have shown that when the inlet COD_Cr、BOD₅ and SS are in the range of 900 - 1100 mg/L, 250 - 350 mg/L and 350 - 450 mg/L respectively, the effluent of the system is good enough to meet the first grade of national wastewater integrated discharge standard (GB 8978—1996).

Key words: dyeing-weaving wastewater, hydrolytic acidification, contact oxidation, coagulation and air floatation

摘要：

介绍了某染织厂废水处理设施的改造工程。采用水解酸化、接触氧化、混凝气浮工艺处理染织废水, 取得了良好的处理效果。运行结果表明, 在进水COD_Cr、BOD₅、SS分别为900～1 100、250～350、350～450 mg/L的条件下, 出水达到GB 8978—1996一级排放标准。

关键词: 染织废水, 水解酸化, 接触氧化, 混凝气浮

CLC Number: 

• X703.1