缺氧-好氧法+新型外置膜生物反应器处理乳品废水研究

STUDY ON THE A/O+ EXTERNAL MBR DEAL WITH DAIRY WASTEWATER SEWAGE

利用缺氧-好氧法(A/O)+外置膜生物反应器(MBR)对乳品废水进行试验,MBR与A/O工艺结合,强化脱氮,利用气液混合泵曝气代替鼓风曝气。结果表明,气液混合泵充氧效率高、能耗低。进水COD和NH3-N、TN、TP质量浓度平均分别为994 mg.L-1和38.7、76.3、8.8 mg.L-1时,出水COD和NH3-N、TN、TP质量浓度平均分别为17.8mg.L-1和6.9、16、1.27 mg.L-1,去除率分别为98.2%和82%、78.9%、85.7%。

Use A/O＋ new extemal MBR deal with dairy wastewater sewage, MBR Combination A/O process, in order to consolidate and nitrogen. Use aeration pump replace blowing aeration. Result, Into the water for COD, NH3-N, TN, TP averages 994 mg.L^-1, 38.7 mg.L-1, 76.3 mg.L-1, 8.8 mg.L-1; Effluent COD, NH3-N, TN, TP 17.8 mg.L^-1, 6.9 mg-L^-1, 16 mg.L^-1, 1.27 mg.L^-1; The averages removal rate are 98.2%, 82%, 78.9%, 85.7% respectively.