Abstract:

The demulsification-Fenton oxidation process for the treatment of emulsifying wastewater is reported (The original wastewater COD_Cr is 290 000 mg/L,BOD₅ is 28 000 mg/L). The results show that 97.8% of COD_Cr removal rate could be achieved after emulsion breaking and then 89.4% of COD_Cr removal rate could be achieved after Fenton oxidation. The final COD_Cr is 684 mg/L. BOD₅/COD is improved from 0.094 to 0.47,and biodegrad-ability is improved greatly.

Key words: emulsifying wastewater, demulsification, Fenton's reagent

摘要：

采用破乳-Fenton试剂法对机械厂磨床车间废乳化液进行处理(原水COD_Cr=290000mg／L,BOD₅=28000mg／L)。结果表明：使用合适的破乳药剂，破乳后废水的COD_Cr去除率达到97．8％；之后投加适量的Fenton试剂进行氧化处理，最终出水COD_Cr为684mg／L；BOD₅／COD由0．094增至0．47，可生化性大大提高。

关键词: 废乳化液, 破乳, Fenton试剂

CLC Number: 

• X703.1