摘要：

采用水解酸化+二级接触氧化工艺处理新区某DOP工厂废水。设计总处理水量120m³/d,其中原浓废水20m³/d,出水回流100m³/d;设计进水水质:高浓度有机废水COD_Cr9000mg/L,pH5～9,混合后废水COD_Cr1500mg/L,pH6～8;设计出水水质:COD_Cr≤130mg/L,pH6～9。实际进水COD_Cr987.60mg/L,平均出水COD_Cr为105.37mg/L;平均COD_Cr去除率为89.33%,处理后出水可达标排放。

关键词: 邻苯二甲酸二辛酯废水, 水解酸化, 接触氧化

Abstract:

Hydrolysis acidification and two-stage contact oxidation processes are used for treating the DOP wastewater. The designed total flow is 120 m³/d.The original highly concentrated wastewater is 20 m³/d, and the refluxing effluent 100 m³/d.They are mixed in neutralization pool.The designed influent quality is as follows: the highly concentrated organic wastewater COD_Cr 9 000 mg/L,pH 5-9,after mixed,the wastewater COD_Cr concentration 1 500 mg/L, pH 6-8.The designed effluent quality is as follows: COD_Cr≤130 mg/L, pH 6-9.The real influent COD_Cris 987.60 mg/L,the average effluent COD_Cr105.37 mg/L,the average removal rate of COD_Cr is 89.33%.The treated water quality can be up to the designed discharge standard.

Key words: dioctyl phthalate wastewater, hydrolysis- acidification, contact oxidation

中图分类号: 

• X703