ABR徐金兰, 黄廷林, 王志盈(西安建筑科技大学环境与市政工程学院,陕西西安710055) : 了解厌氧折流板反应器(ABR)内厌氧颗粒污泥的微生态结构对于颗粒污泥的培养具有指导意义,为此对ABR各隔室中厌氧颗粒污泥的微生物组成进行扫描电镜观察,并测定了其在不同基质中的比产甲烷活性和辅酶F420的含量。结果表明,ABR各隔室颗粒污泥的微生物组成差异较大,1#隔室颗粒污泥表面以产酸菌为主,内部以产甲烷杆菌为主,2#、3#隔室的颗粒污泥中没有明显的优势菌,菌群多样复杂,4#隔室颗粒污泥中的优势菌是索氏甲烷菌;1#隔室颗粒污泥利用葡萄糖、乙酸的产甲烷活性较低,利用丙酸的产甲烷活性最高,2#、3#、4#隔室颗粒污泥利用葡萄糖、乙酸的产甲烷活性较高,利用丙酸的产甲烷活性较低。ABR中颗粒污泥的辅酶F420沿隔室逐渐升高,与产甲烷活性的变化一致,也就是说F420可以反映颗粒污泥的产甲烷活性。 : 厌氧折流板反应器; 厌氧颗粒污泥; 微生物学特性:X703.1 :C :1000-4602(2004)10-0049-03 :(01JK187)MicrobiologicalCharacteristicsofAnaerobicGranularSludgeinABRXUJin-lan, HUANGTing-lin, WANGZhi-ying(SchoolofEnvironmentalandMunicipalEngineering,Xi'anUniversityofArchitectureandTechnology,Xi'an710055,China) Abstract: Itisimportanttounderstandmicrobiologicalcharacteristicsofanaerobicgranularsludgeinanaerobicbaffledreactor(ABR)forthesakeofculturinggranularsludge.Therefore,anobservationandanaly-sisonthecompositionofanaerobicgranularsludgeineachseparationchamberofABRwereconductedbyusingscanningelectronmicroscope,andspecificmethanogenicactivityandthecoenzymeF420contentweredeter-mined.TheresultindicatesthatthedisparityofmicrobialcompositionissignificantamongtheseseparationchambersofABR.AcidogenicbacteriaarepredominantonthesurfaceofgranularsludgewhilemethanogenicbacteriaarepredominantininteriorofgranularsludgeinchamberNo.1.AsforchamberNo.2andchamberNo.3,therearenoabsolutelypredominantbacteriaandtherearemultipleandcomplicatedbacteriacolonies.InchamberNo.4thepredominantbacteriaofgranularsludgeisSohngeniimethanogenicbacteria.InchamberNo.1themethanogenicactivityarousedbyglucoseoraceticacidislowerthanthatbypropionicacid.Conversely,inchamberNo.2,No.3,No.4,themethanogenicactivitybyusingglucoseoraceticacidallishigherthanthatbyusingpropionicacid.CoenzymeF420contentofgranularsludgeinABRincreasesprogressivelyalongsepara-tionchambers(accordingtotheorderofnumberedchambers),whichconformswiththeorderofmethanogenic·49· 2004Vol.20 CHINAWATER&WASTEWATER No.10activityincrease.Inotherwords,thecoenzymeF420alsocanbeusedforindicatingthemethanogenicactivityofgranularsludgeinABR. Keywords: ABR; anaerobicgranularsludge; microbiologicalcharacteristic ABR,,[1],。1 材料和方法1.1 ,15.84LABR。ABR(1)4,,(33±1)℃。ABR24h,COD2500mg/L。1 Fig.1 Schematicdiagramofexperimentalset-up1.2 238dABR,;F420[2];[2]。2 结果与分析2.1 ,,1#,、,,,,;(0.5μm,3μm),H2,[3]。1#,,COD。2#(、),,2#。H2,1.5d;,,(Methanosarcina)5d,(Methanosaeta)SRT12d[4]。ABR,,,、。3#2#,,,(1#、2#),。4#。,ABR(pH、、),。2.2 、、、,,1。1 Tab.1 MaximumspecificmethaneproductionratesofgranularsludgewithdifferentsubstratesmL/(g·d)1#31745752#16937963#128241184#1355550 : 。 ,,。Lettinga[5](SMPA),ABRSMPA,·50·2004Vol.20 No.10,,,,、,,[6]。1,1#。,1#,ABR。2#、3#,。4#,、。2.3 F420F420(2),F420,,4#F4201#,1#,4#,F420。2 F420Tab.2 ContentofF420ingranularsludgeofeachchamberμg/(g·d)1#2#3#4#F42078256026621154103 结语① ABR(pH、),1#,H2,2#、3#,,4#。② ABR、、,,,。③ ABRF420,,F420。:[1] .[M].:,2002.[2] ,,.[M].:,1990.[3] ,.[M].:,1986.[4] GradyJrCPleslie,GlenTDaigger,HenryCLim.[M]..:,2003.[5] LettingaG.Advancedanaerobicwastewatertreatmentinthenearfuture[J].WatSciTech,1997,35:5-12.[6] ,,.(ABR)[J].,2002,4:362-365.:(029)82205044E-mail:xjl5044@hotmail.com:2004-04-13··甘肃省合作市污水处理厂工程 该工程包括建设污水处理厂及排水管网,管线全长:16.7km,管径:DN300DN600,管材:钢筋混凝土管及PE管,投资额:2000万元,建设周期:2004年—2005年。甲方:合作市给排水公司。江苏省苏州市供水管网工程 该工程位于江苏省苏州市甪直至车坊马塔村,供水管线全长:9.5km,管径:DN1200DN1400,采用球墨铸铁管,投资额:2100万元,建设周期:2004年5月—2005年底。甲方:苏州市关中区供水公司,设计单位:上海市政设计研究院给水二所。( )·51·2004Vol.20 No.10