ANAMMOX-UASB系统处理晚期垃圾渗滤液+脱氮性能及其颗粒污泥特性
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2020-04-09 14:17:56
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第46卷第1期2016年1月东南大学学报(自然科学版)JOURNALOFSOUTHEASTUNIVERSITY(NaturalScienceEdition)Vo1.46NO.1Jan.2016DOI:10.3969~.issn.1001—0505.2016.01.028ANAMMOX-UASB系统处理晚期垃圾渗滤液脱氮性能及其颗粒污泥特性(北京工业大学建筑工程学院,北京100124)(北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124)(。中国城市建设研究院有限公司,北京100012)摘要:以晚期垃圾渗滤液为研究对象,考察ANAMMOX.UASB系统脱氮性能及ANAMMOX颗粒污泥表观特性和粒径分布变化.结果表明,采用ANAMMOX—UASB系统处理晚期垃圾渗滤液可实现高效脱氮.在稳定期,NH4一N,NO;一N和TN的平均去除率分别为96%,95%和87%;系统中ANAMMOX颗粒污泥厌氧氨氧化活性良好,仍然是脱氮的主要途径;同时也有部分异养反硝化作用同步脱氮.此外,系统中还存在好氧氨氧化和亚硝氮氧化作用,其活性分别为0.031和0.010g/(g·d).系统中颗粒污泥颜色由砖红色转变成红褐色,平均粒径由小变大;稳定运行期粒径大于1.5nlm的颗粒污泥为81%;颗粒污泥表层有球菌、杆菌和丝状菌附着.关键词:厌氧氨氧化;晚期垃圾渗滤液;颗粒污泥;脱氮中图分类号:X703文献标志码:A文章编号:1001—0505(2016)01-0171-08CharacteristicsofgranularsludgeandnitrogenremovalperformanceinANAMMOX-UASBsystemfedwithmaturelandfillleachateLiYun-ZhangMeixue-XiongXiangyangChenGangLiJun·ZhangYanzhuo·SongWei。WangMingchao(CollegeofArchitectureandCivilEngineering,BeijingUniversityofTechnology,Beijing100124,China)(KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China)(ChinaUrbanConstructionDesignandResearchInstituteCo.,Ltd.,Beijing100012,China)Abstract:Takingthematurelandfillleachateastheresearchobject,thenitrogenremovalperformanceoftheANAMMOX.UASB(anaerobicammoniaoxidationup.flowanaerobicsludgeblanket)system.theANA^OXgranularsludgecharacteristics.andthechangesofitssizedistributionswereinvesti.gated.TheresultsshowthattheANAⅣOX—UASBsystemcanachieveefficientnitrogenremovalinmaturelandfi11leachate.Atthestablestage,theaverageremovalratesofNI-I;.N。NO.NandTNwere96%.95%and87%,respectively.TheactivityofANAMMOXgranularsludgewasverywel1.andANAMOXstillwasthemainWayofnitrogenremova1.buttherewasalSOnitrogenremovalbyheterotrophicdenitrificationsimultaneouslyinthesystem.Moreover,aerobicammoniaoxidationandnitriteoxidationexistedinthesystem.andtheiractivitywere0.031and0.010g/(g·d),respective.1y.Thecolorofgranularsludgechangedfrombrickredtored—brown,andtheaveragesizeofgranularsludgechangedfromsmalltolarge.Atthest
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