北京市高碑店污水处理厂污泥膨胀的研究及控制对策张建新

　张建新　王洪臣　　　通过分析高碑店污水处理厂发生污泥膨胀前后的运行参数及污泥膨胀可能的原因,认为此次污泥膨胀主要由于污泥负荷偏低引起的中度丝状菌膨胀,通过调节泥龄、污泥负荷、溶解氧等运行参数成功地控制了污泥膨胀。　污水处理　污泥膨胀　溶解氧　污泥负荷　　1993,50m3/d,。,,199425m3199850m3,,,。,;。19982,,,,4。。1　,,,,,,,1()。1.1　(1)。、,1∶1,,。(2)。80m3/d,50m3,50m3/d,。(3)BOD(1)。1,BOD19981,100mg/L,,,40mg/L。1　BOD(4)。14～15℃。(5)pH。7.5。1.2　(1)(2)。2,1,2000mg/L,12,3500mg/L。(2)(3)。3,1、,2,,0.1kgBOD/(kgMLSS·d),0.05kgBOD/(kgMLSS·d)。(3)(4)。411,9d,,,。(4)(56)。5、6,12,,0.48　　　　　Vol.29　No.7　2003DOI:10.13789/j.cnki.wwe1964.2003.07.0052　3　4　mg/L,3mg/L。(5)(7)。7,12,30%,。(6)(8)。8,1,。(7)。70%。(8)6000m3/d。5　6　7　8　　Vol.29　No.7　20039　　　　1.3　,12,,。,,,。2　2.1　(1)。,,,,,,。(2)。2.2　1　17010041021N00920581185118630603N.limicola0961/μm0.70.71.41.2～20.60.41.00.60.50.71.00.9～1.30.81.11.0/μm10050≥200≥20050～10050≥200100～20050～1001005050～10050100100ppppppppppfp,fp,fpp-+----T----,F-------------------+-+--++--+----+-+------+--------±-------+---±--±--±--+±±+--+-++±-+--±+±+±±o-rvr-o--r,os,orrd,s,or-++,-----+-+---±--g--,±+---,g---,g--,g+-　:p;f;T;F;d;r;s;o;v;g()。,30min,,。,,。(),。2.3　,,,,50～200μm,0.7～1.4μm,,,,。2.4　SVI8,SVI19981,23,300mL/g,。3　3.1　3。(1)。:①;②;③。(2)。:①,;②pH;③25～30℃。(3)。:①,0.15kgBOD/(kgMLSS·d)②,1mg/L;③,7d。3.2　(1)3.3　(1),10　　　　Vol.29　No.7　2003。(2),(BOD),(0.1kgBOD/(kgMLSS·d)),(9d),,,。(3),,,0041。(4),。4　4.1　,,,,,。210:(1)。,6000m313000m3,70%,9d3d,。(2)。,,2000mg/L,1200mg/L,,0.1kgBOD/(kgMLSS·d),0.2kgBOD/(kgMLSS·d)。(3)。1500m3/min1000m3/min,4mg/L2mg/L,。4.2　,,,。(1)。2,210,33,3,3500mg/L1000～1500mg/L,。(2)。3,3,,,0.1kgBOD/(kgMLSS·d)0.3kgBOD/(kgMLSS·d),4410,,,,,0.2～0.3kgBOD/(kgMLSS·d)。(3)。4,210～353d,36,、,,3～4.5d。(4)。5,10.4mg/L,,,0.2mg/L。6,1,4mg/L。,,,2～3mg/L。(5)。7,1,11%,,330%,,10%。(6)。8,,1,,3,,300mL/g,,,100mL/g。(7)。29,,。212～32,,,,50～200μm,,,,、、,。33～38,,,,、,;315,,　Vol.29　No.7　200311　　　、。316～324,,,,325～43,,,,410～413,,,,417,。,,,。(8)、。29～32,,,,,33,,MLSS。,,,,,,。314～16322、23SS30mg/L(DO),SS21～29mg/L,BOD10～20mg/L。5　(1)。,:0.1kgBOD/(kgMLSS·d),,。(2)。①,,(9)3。②,,36～94,43～96,,,319～25,。210420,10,36410、,,(3),7,9。③,(2)(3)。(3)。,:1000～1500mg/L;0.1～0.3kgBOD/(kgMLSS·d);4～6d;2～3mg/L;0.2mg/L。⊙:100022　:[phone]　:2002-6-27··　　△2010　,,2010,。,,,;,;、,,、;,。,,,。(　杨　琦)△200470%　,9,:、、、、、、、。:、,、,13,18km,22。,4。2004。,142m3,70%。(通讯员　汪东林)12　　　　Vol.29　No.7　2003WATER&WASTEWATERENGINEERINGVol.29No.7July2003ABSTRACTSProblemsandDesignExampleofComprehensiveProtectionforWaterHammerduetoCavitiesCollapsingwithWaterColumnSeparationatMulti-PointsXiongShuiyingetal(1………………………………………………)Abstract:Thephenomenonofwatercolumnseparationatmulti-pointsmayoccureasilyandresultinthedamageofwaterhammerduetocavitiescollapsinginwatertransmissionlineoverlongdistance.Theoverallwaterhammercom-puteranalysisshouldbemade,andcomprehensiveprotectionmeasuresshouldbethentakeninthiskindofpumpingsta-tionandpipelineproject.Theconsiderationofcomprehensiveprotectionforwaterhammerduetocavitiescollapsingwithwatercolumnseparationatmulti-pointsispresentedonthebasisofmanyyears'researchandexperience,especiallytheestablishmentandapplicationofmathematics-physicsmodelformulti-pointfixedcompletecavitiesareexplained,andthemethodofone-waywaterintroductioniscomparedwiththatofone-wayairintroductionfordamp.Thecomputerpro-grammingforone-waywaterintrodutionatmulti-pointsisdiscussed.ThedesignexampleofwaterhammeranalysisandcomprehensiveprotectioninwatertransmissionprojectoverlongdistanceofZcityisalsopresentedindetails.SludgeBulkingControlinGaobeidianWastewaterTreatmentPlantZhangJianxinetal(8…………………………………)Abstract:TheoperatingparametersbeforeandaftersludgebulkinginGaobeidianWWTPareinvestigatedandthecausesofsludgebulkingarediscussed.Itisbelievedthatthisaccidentwascausedbymediumexpansionoffilamentouscolonyundertoolowsludgeloading.Thesludgeproblemhasbeencontrolledeffectivelybywaysofregulatedsludgeretentiontimeandloading,DOlevelandotheroperatingparameters.ExperimentalResearchonImprovementofOrganicCarbonRemovalinWaterRegenerationZhangJieetal(25……………)Abstract:Theregeneratedwastewaterwithlowsubstancecontentisdifficultlydegradable.ThehighTOCremovalofaerobicbio-filterwasdiscussed,andcontrolexperimentwasconducted.Undertheseconsiderationsthebestfiltratingspeedsforvariouskindsofaerobicbio-filtershavebeendetermined.Theexpansionflowaerobicbio-filterseemsdominat-ingtechnicallyandeconomically.ExperimentalResearchonGranularFluidizedBedforSludgeConcentrationandSeparationWangXiaochangetal(29……)Abstract:Pilotplantexperimentalresearchofupwardgranularfluidizedbedwasconductedforactivatedsludgethickeningandsolid/liquidseparationatBeishiqiaoWastewaterTreatmentPlantinXi'anCity.Bestsludgegranulatewasformedattotalhydraulicretentiontimeof20min.Byfurtherseparationofnet-filterbucketthewatercontentofsludgereducedto92.99%～94.36%andtheSScontentineffluentreducedto5mg/L.Thefunctionsofsludge-liquidseparationandsludgethickeningshouldbecompletedsimultaneouslyatthisfacilityandthesecondarysedimentationtankandsludgethickenercouldbereplaced.Thesludgegranulateswithcompactstructureandrefinedmorphologygiveessentialconfidencetothewastewatertreatment.PilotPlantResearchofUltra-FiltrationProcessonRawWaterPurificationDongBingzhietal(32…………………