浸没式MBR技术在养猪场废水处理中的应用

摘要

Hoggery wastewater containing a high organic matter and ammoniac concentration was treated by immerged MBR and A/O process in this experiment. The results showed that when inlet concentrations of COD, BOD_5 ,SS and NH_3-N in the hoggery wastewater were 9 100 mg/L,3 788 mg/L,4 490 mg/L and 450 mg/L respectively, the outlet water reached the DB 31/199-1997 first-class standard with the parameters of COD < 85 mg/L,B0D_5 < 10 mg/L, SS <5 mg/L, NH_3-N <5 mg/L. This immerged MBR technology can be efficiently used for wastewater treatment in livestock production.%采用浸没式MBR,并结合传统的A/O工艺处理高COD和高NH_3-N浓度的养猪场废水.结果表明,当废水处理站进水水质COD为9100 mg/L,BOD5为3788 mg/L,SS为4490 mg/L,NH_3-N为450mg/,L时,出水COD<85 mg/L,BOD_5<10 mg/L,SS<5 mg/L,NH_3-N<5 mg/,L,达到DB 31/199-1997一级标准.实验证明,浸没式MBR法可用于畜禽养殖业废水处理.