针对浙江嘉兴某规模化养猪场沼液水质特点,建立一体式膜生物反应器(MBR)系统,着重考察不同运行状况下系统的长期运行稳定性.结果表明:系统运行效果稳定高效,当进水p(氨氮)为462 ～1 764 mg/L(平均862 mg/L),碳氮比为3.2 ～0.66(平均1.7)条件下,系统出水p(COD)和p(氨氮)分别为(241.6±74.8) mg/L和(26.6±29.3)mg/L,满足甚至优于DB 33/593-2005《浙江省畜禽养殖业污染物排放标准》.系统总抗生素同步去除效率达80％以上,Cu、Zn、Fe、Mn去除率分别为87.5％、94.1％、92.7％和94.2％.%The pilot-scale submerged membrane bioreactor (MBR) process was developed to investigate the stable running performance on treating the digested piggery wastewater from a large-scale piggery farm in Jiaxing,Zhejiang Province.The results showed that the treatment effect of the system was stable and satisfactory.When the influent ammonia nitrogen was 462 ～1 764 mg/L(mean value of 862 mg/L) and COD/TN was 3.2 ～0.66(mean value of 1.7),the effluent concentrations of COD and ammonia nitrogen were respectively (241.6 ± 74.8) mg/L and (26.6 ± 29.3) mg/L.Therefore,the system effluent quality was superior to the " Livestock and Poultry Breeding Industry Pollutant Discharge Standards in Zhejiang Province" (DB 33/593-2005).Moreover,the synchronous removal performance of heavy metals and antibiotics were efficient with Cu,Zn,Fe,Mn of 87.5％,94.1％,92.7％,94.2％,respectively,and the whole antibiotics of higher than 80％.
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