摘要：

介绍了高浓度活性污泥法处理化工园区综合废水的现场实验。探讨了高浓度活性污泥法在不同污泥COD_Cr负荷以及不同进水COD_Cr下对化工园区综合废水的COD_Cr的去除率及其污泥性状。实验表明,在0.30～0.40kg/(kg·d)的污泥COD_Cr负荷区间内,COD_Cr的去除率可达90%以上;在一定范围内较低的进水COD_Cr对进一步降低出水COD_Cr帮助不大,反而会降低系统对污染物的去除率。

关键词: 化工园区综合废水, 高浓度活性污泥法, 污泥CODCr负荷

Abstract:

The experiments of the treatment of mixed wastewater in the area of Chemical Industrial Park by highly concentrated active sludge process are introduced. The COD_Cr's removal rate of mixed wastewater,which has different COD_Cr loading of sludge and different COD_Cr concentration of influent water,being treated by highly concentrated activated sludge process and its sludge charactristics are disussed. When the COD_Cr loading range of sludge is 0.30-0.40 kg/(kg·d),the removal rate of COD_Cr could be over 90%. In a certain COD_Cr range of influent water,the COD_Cr of influent water with lower influent concentration does not help much in reducing effluent water concentration. On the contrary,it can reduce the removal rate of the system.

Key words: mixed wasewater of the area of the Chemical Industrial Park, highly concentrated activated sludge process, COD_Cr loading of sludge

中图分类号: 

• TU991.21