A-2N-BAF组合工艺深度除磷脱氮研究
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2020-02-22 15:00:27
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书第44卷第2期2012年2月哈尔滨工业大学学报JOURNALOFHARBININSTITUTEOFTECHNOLOGYVol.44No.2Feb.2012A2N/BAF组合工艺深度除磷脱氮研究李继1,吕小梅1,董文艺1,张真江1,范翊2,王维康2(1.哈尔滨工业大学深圳研究生院环境科学与工程研究中心,518055广东深圳,liji99@gmail.com;2.深圳市利源水务设计咨询有限公司,518031广东深圳)摘要:针对我国南方低碳氮比生活污水,开展以BAF为硝化单元的A2N工艺小试研究,针对超越污泥携带NH+4导致出水超标及二沉池出水SS偏高时TP超标问题,进一步研究增加二级BAF单元的处理效果,形成A2N/BAF工艺.结果表明:A2N段对COD、NH+4-N、TP平均去除率分别为82.0%、70.9%、90.0%;当进水NH+4-N超过40.0mg/L时,二沉池出水NH+4-N超过10.0mg/L;二级BAF单元能够硝化二沉池出水NH+4-N及截留SS,最终出水COD、TP、NH+4-N、NO-3-N、SS平均质量浓度分别为35、0.35、1.06、8.01、7mg/L,稳定达到一级A标准.关键词:低碳氮比;双污泥工艺;反硝化除磷;曝气生物滤池;启动中图分类号:X703文献标志码:A文章编号:0367-6234(2012)02-0080-05StudyoncombinedA2N/BAFprocessforadvancednitrogenandphosphateremovalLIJi1,LXiao-mei1,DONGWen-yi1,ZHANGZhen-jiang1,FANYi2,WANGWei-kang2(1.EnvironmentalScienceandEngineeringResearchCenter,HarbinInstituteofTechnologyShenzhenGraduateSchool,518055Shenzhen,Guangdong,China,liji99@gmail.com;2.ShenzhenLiyuanWaterDesign&ConsultationCo.Ltd.,518031Shenzhen,Guangdong,China)Abstract:TheA2NprocesswithBAFasanitrificationunitwasresearchedaimingatthelowcarbonandnitro-genratiodomesticwastewaterinsouthernChina.Accordingtotheproblemsthateffluentammoniaexceededthestandardbecauseoftheammoniacarriedinsurpasssludgeandtotalphosphatecouldn’treachthedis-chargestandardwhenSSofsecondarysettlingtankwashigh,asecondaryBAFwassetup,andthetotaltreat-menteffectofA2N/BAFprocesswasstudied.ResultsshowedthattheaverageremovalratesofCOD,ammoniaandTPofA2Nstagewere82.0%,70.9%and90.0%,respectively.Effluentammoniaconcentrationofsec-ondarysettlingtankexceeded10mg/Lwheninfluentwasmorethan40mg/L.AverageconcentrationofCOD,TP,ammonia,nitrateandSSinfinaleffluentwere35,0.35,1.06,8.01and7mg/L,respectively,whichhadsatisfiedtheA-levelofthenationalstandards.Keywords:lowcarbon/nitrogenratio;A2N;denitrifyingphosphateremoval;biologicalaeratedfilter(BAF);start-up收稿日期:2010-09-16.基金项目:国家科技支撑计划项目(2006BAB17B04,2006BAB17B06);国家水体污染控制与治理科技重大专项(2008ZX07317-02);深圳市科技计划项目(SG200810130012A);深圳市南山区科技研发资金(南科院2008006).作者简介:李继(1973—),男,副教授;董文艺(1967—),男,教授,博士生导师.我国南方城市污
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