某工业区再生水厂工艺选择探讨

Discussion on Process Selection of Reclaimed Water Plant in an Industrial Area

某项目由于达标污水含盐量高需要进行脱盐,而浓缩脱盐后浓水中生化指标超标,需要对浓水进行生化处理,论文介绍了处理工艺的选择:再生水采用“集水池+高密池+超滤+反渗透”的处理工艺,产水回用;浓水采用“高密池+耐盐菌反硝化滤池+多自由基催化氧化+活性炭过滤”的处理工艺,产水达标外排。

In this project, due to the high salt content of the qualified sewage, desalting is required, and the biochemical treatment of the concentrated water after desalting exceeds the standard biochemical index. The paper introduces the selection of treatment process: the reclaimed water adopts the treatment process of“collecting tank + high-density tank + ultrafiltration + reverse osmosis”, and the produced water is reused;the concentrated water adopts the treatment process of “high density tank + salt tolerant bacteria denitrification filter + multi free radical catalytic oxidation + activated carbon filtration”, and the produced water is discharged after reaching the standard.