【摘要】 采用SSSAB—AFB—MBR工艺处理20 m³/d豆制品生产废水,进水COD_Cr为3 500～7 500 mg/L、氨氮为80～140 mg/L时,平均去除率分别为99.3%、98.3%,出水达到《污水综合排放标准》（GB 8978—1996）一级排放标准要求。设施运行成本为2.75元/m3,吨水占地1.25 m2,总占地面积约25 m²。该工艺中SSSAB的COD_Cr容积负荷高达17.8 kg/（m3·d）,出水COD_Cr≤500 mg/L,COD_Cr去除贡献率高达93.7%;AFB氨氮负荷达0.263 kg/（m³·d）,出水氨氮≤15 mg/L,氨氮去除贡献率高达99.5%;MBR反应器的COD_Cr平均去除率为70.5%,氨氮平均去除率为54.4%。更多还原

【Abstract】 The SSSAB-AFB-MBR process was used to treat 20 m3/d soybean production wastewater with the influent COD_Cr3 500-7 500 mg/L and NH3-N 80-140 mg/L,and the average removal rate was up to 99.3% and 98.3%. The effluent met the first-level discharge standard of the Comprehensive Wastewater Discharge Standard（GB 8978—1996）.The facility operating cost was 2.75 yuan/m3,the area cost per ton of water was 1.25 m2,and the total area was about25 m². In this process,the COD_Crvolume load of SSSAB was up to 17.8 kg/（m3·d）,the effluent COD_Crwas less than or equal to 500 mg/L,and the COD_Crremoval contribution rate was up to 93.7%. The ammonia nitrogen load of AFB reached 0.263 kg/（m3·d）,the effluent NH3-N≤15 mg/L,the ammonia nitrogen removal contribution rate is 99.5%. In addition,the COD_Craverage removal rate and the ammonia nitrogen removal rate of MBR reactor are 70.5% and 54.4%,respectively.更多还原