摘要：

对两步曝气微电解—絮凝沉淀工艺处理高浓度化工废水进行了中试研究,结果pH由偏酸、偏碱性调整至中性,矿化度降低44%;两步微电解COD去除率为45%,絮凝沉淀COD去除率49%,COD总去除率达72%;废水可生化性由0.18提高到0.38,为后续生化处理工艺奠定了良好基础。

关键词: 微电解, 絮凝沉淀, 废水处理

Abstract:

Pilot research has been carried out on the highly concentrated chemical wastewater by the two-step aerated micro-electrolysis and flocculation-deposition process.The results show that the pH has been adjusted from acidic or alkaline to neutral,the mineralization reduced 44%.The removal rate of the COD of two-step micro-electrolysis process and flocculation-deposition process are 45%,49%,respectively.The total removal rate of the COD is 72%,and the biodegradability is improved from 0.18 to 0.38.Such results has established an appropriate foundation for the subsequent bio-process.

中图分类号: 

• X703.1