添加原水改善SBR工艺处理猪场废水厌氧消化液性能（完整版）实用资料(可以直接使用，可编辑完整版实用资料，欢迎下载）添加原水改善SBR工艺处理猪场废水厌氧消化液性能邓良伟1,2,郑平13,李淑兰2,孙欣2,汤玉珍2(11浙江大学环境工程系,杭州310029;21农业部成都沼气科学研究所,成都610041摘要:采用序批式反应器(SBR工艺直接处理猪场废水厌氧消化液,处理系统的效率较低,COD去除率仅有10%左右,NH+42N去除率70%左右;处理出水水质较差,出水COD高于1000mg/L,出水NH+42N在200mg/L左右;处理系统的工作不稳定,效能逐渐恶化.在猪场废水厌氧消化液中添加部分未经厌氧消化的猪场废水(原水,处理系统的处理效率明显提高,COD去除率高于80%,出水COD降到250~350mg/L;NH+42N去除率高于99%,出水NH+42N小于10mg/L;处理系统的稳定性也得到增强.添加原水后,猪场废水厌氧消化液的BOD5/COD比值从0119上升到0154,BOD5/TN比值从0128上升到2104,增加了微生物生长和反硝化所需的碳源,强化了反硝化作用,不仅提高了总氮去除效率,而且通过回补碱度,维持了处理系统的pH值稳定.关键词:猪场废水;厌氧消化液;SBR;配原水;硝化;反硝化中图分类号:X713文献标识码:A文章编号:025023301(20050620215205收稿日期:2004219;修订日期:2004211201基金项目:国家“十五”科技攻关项目(2002BA514A212224作者简介:邓良伟(1966~,四川安岳人,副研究员,博士研究生,主要从事废水处理研究和工程设计.3通讯联系人,Tel:0571286971709,E2mail:pzheng@zju.edu.cnPerformanceImprovementofSequencingBatchReactor(SBRTreatingDigestedPiggeryWastewaterbyAdditionofRawWastewaterDENGLiang2wei1,2,ZHENGPing1,LIShu2lan2,SUNXin2,TANGYu2zhen2(11DepartmentofEnvironmentalEngineering,ZhejiangUniversity,Hangzhou310029,China;21BiogasScientificResearchInstituteoftheMinistryofAgriculture,Chengdu610041,ChinaAbstract:Whendigestedpiggerywastewaterwasdirectlytreatedwithasequencingbatchreactor(SBRprocess,theefficiencywaslowwithCODremovalabout10%andNH+42Nremovalabout70%.TheeffluentCODconcentrationwashigherthan1000mg/LandeffluentNH+42Nconcentrationwas200mg/Lorso.Theworkingstateofthereactorwasunstableanditsperformancedeterioratedgraduallyduringoperation.Afteraddingno2digestedpiggerywastewater(rawwastewatertodigestedpiggerywastewaterintheinfluent,thereactorperformancewassignificantlyimprovedwithCODremovalhigherthan80%andNH+42Nremovalupto99%.TheeffluentCODconcentrationwasintherangeof250mg/Lto350mg/LandeffluentNH+42Nconcentrationwaslowerthan10m/L.Theworkingstabilityofthereactorwasgreatlyincreased.Afteraddingrawwastewater,theratioofBOD5toCODintheinfluentwasraisedfrom0.19to0154,andtheratioofBOD5toTNwasraisedfrom0128to2104,whichimpliedanincreaseofcarbonsourceformicrobialgrowthanddenitrification.The