序批式活性污泥法处理养猪场废水

序批式活性污泥法处理养猪场废水2009年37卷第1期广州化工·133·序批式活性污泥法处理养猪场废水梁美东，喻文凯，阳铁建(湖南化工职业技术学院化工系，湖南株洲412004)摘要：采用序批式活性污泥法(sBR)处理养猪场废水，通过实验研究了COD去除率与进水浓度、曝气时间、沉淀时间、污泥浓度的变化规律，当进水COD浓度为2600mg，L时，最佳曝气时间为6h，沉淀时间60min，污泥浓度为2500ms／L时，COD去除率达到93％；进水COD浓度在2000rng／L-4500mg／LI~,．SBR均能稳定运行。关键词：序批式活性污泥法；养猪场废水；COD；曝气时间WastewaterTreatmentofPigFarmsbySequencingBatchReactorLIANGMei-dong,YUWe1％-kai,YANGTie-jia~(DepartmentofChemicalEngineering，HunanVocationalCollegeofChemicalIndustry，HunanZhuzhou412004，China)Abstract：Bytheuseofsequencebatchreactor(SBR)todealwithwastewaterfrompigfarms，throughtheexperimentalstudyofthecjamhginglawforCODremovalrate，theconcentrationofwater，thetimeofaerationandsedimentation，plussludgeconcentrationchangeswerestudied．WhenthewaterconcentrationofCODwas2600mg／L，thebesttimeforaerationwas6h，precipitationtimewas60rainandsludgeconcentrationwas2500mg／L，CODremovalratereached93％。AndwhenCODconcentrationinthewaterwas2000mg／L一4500mg／L．SBRwasinastableoperation．Keywords：sequencingbatchreactor；wastewaterfrompigfarm