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CASS工艺处理小区污水及中水回用张 统 概述了小区污水处理站的设计原则及常用工艺流程,详细介绍了CASS工艺处理小区污水具有出水水质好、运行稳定、管理简单、占地少、产泥量低等特点。CASS工艺的出水经过膜过滤和消毒处理即可达到中水回用的标准,为小区污水处理及回用提供了一种可供选择的工艺及配套设备。 CASS工艺 小区污水 膜过滤 中水回用1 ,。,,。,。1400m3/d,3785m3/d。,4000m3/d。(),。:,,,,。,:、()、。,,,。,(CASS)。2 2.1 (1),,《》(GB3838-88)《》(GB8978-96),。(2),,。(3),。(4),。,。(5),,。(6),,,,,,。(7),,。(8),。(9),。2.2 ,、、。,。:①※※※※※※。②※※※※※※。③※※※※SBRCASS※。④※※※※()※※()。64 Vol.27 No.7 2001DOI:10.13789/j.cnki.wwe1964.2001.07.020⑤※※※※※()※。,,,。,。,,,。,1000m3。,。3 CASS3.1 CASS(CyclicActivatedSludgeSystem)SBR,SBR,(、),。,10%。———,(),,。,。,。,,,,,,。,CASS,,,。CASS,、、,--,。3.2 ,CASS:(1)。、,20%～30%。,、、CASS、,,35%。(2)。,,,,,,,10%～25%。(3),。,、。(4),,。,,。(5),。3.3 ,,,。,CASS,,、,,,,。3.4 CASS,CASS。,,,,、。,、,,,,。,:、、、。, Vol.27 No.7 200165 ,,,。、、、。3.5 CASS:0.1～0.2kgBOD5/(kgMLSS·d),15～30d。12h,4h,2.5h,0.75h,0.5～0.75h。4 CASS,。。2700m3,1/4。,300180,50。,1/6,42m3,7～10m3。,,,、、。CASS,,,《》(CJ25.1-89),1。,。1 、、/mg/L12001000/mg/L105/3030pH6.5～9.06.5～9.0BOD/mg/L1010COD/mg/L5050/mg/L2010//L33 ,。,。、、。CASS,(),、、、。。,,。。1000m3/d,,,。,CASS+(2000m3/d)、(3000m3/d)(100m3/d)。,,,,,。5 ,、,。、、,,,,,,,。,+。:10002812 :(010)66758956 66758601 :2001-4-1166 Vol.27 No.7 2001WATER&WASTEWATERENGINEERINGVol.27No.7July2001OnTreatmentofAntibioticWastewaterbyIntegratedTwo-StageAnaerobicReactorQiPeishietal(49……………………………………………………………………………………………………………)Abstract:Inthispaper,anintegratedtwo-stageanaerobicreactorwasusedtotreattheanti-bioticwastewaterwiththemaxinletCODbeing26347mg/L,themaxvolumetricloadingrate8.57kgCOD/(m3·d),theabsoluteconcentra-tionofSO42-1325mg/LandtheCOD/SO42-ratio3.Theresultsshowedthatthisreactorappearsfairadaptabilityandbufferingcapacitytoresisttheimpactsoforganisminhibitingagentsandshockloadings.ProblemsintheDrinking-FireSharedWaterSystemforDwellingHousesYangQi(57………………………………………)Abstract:Themeritsofsharedwatersystemofdwellinghousesfordrinkingandfirewatersupplyarepresentedandtwomajorproblemsi.e.thereliabilityforfirewaterandthehealthsafetyfordrinkingwaterarediscussedemphati-cally.Onthebasisofmulti-factorcomparisonmeasuresandmethodsareproposedtosolvethoseproblemsinthesharedwatersystem.WaterSystemDesignofDivingPoolinShenzhenNatatoriumZhouWeietal(60……………………………………………)Abstract:Considerationsinthewatersystemdesignincludingthewaterdisinfection,thedecisionoffiltrationspeedandthearrangementofwaterinletsandoverflowopeningsoftheswimmingpoolaswellarepresentedinthispaper.ApplicationofCASSProcessforWastewaterTreatmentandReuseinResidentialQuartersZhangTong(64………………)Abstract:ThedesignprincipleandcommontechnicalschemeofCASS(CyclicActivatedSludgeSystem)processforwastewatertreatmentandreuseinresidentialquartersaredescribed.TheCASSprocessisfeasibleforresidentialquartersduetoalotofadvantagessuchasthereliableoperation,easymanagement,lowspacerequirementandlowsur-plussludgeyieldandsoon.IftheeffluentofCASSisfurthertreatedbymembranefiltrationanddisinfection,thefinaleffluentwillbegoodenoughtomeettherequirementofthereusestandardforintermediate.Thisprocesswillbeacandi-dateforthetreatmentandreuseofwastewaterinresidentialquarters.WaterSystemDesignforSeaScopePlazainShenzhenYangDonghui(67……………………………………………………)Abstract:TheessentialsinthewatersystemdesignofSeaScopePlazainShenzhencityarepresented,includingthesystemsforthedrinkingwaterandfirewater,andthesystemsfordomesticwastewater.Especiallytheinstallationoftheautomaticsprinklingsystemisdescribedindetail.ApplicationandDiscussiononSolarHotWaterSystemZhangJiguangetal(69………………………………………………)Abstract:Thebasiccharacteristicsofhotwatersystemwithsolarheatersaredescribedandtheschemeofsolarhotwatersystem(SHWS)forresidentialbuildingsisrecommended.TheanalysisofeconomicfeatureofSHWSshowsthatitsoperatingcostisverylowandtheinvestmentcanberecoveredinthreetofouryears.Assolarenergyisinfiniteandpollution-freeenergyresource,theSHWSisadesirableenergysavingsystemandworthpromoting.OntheSubmergedLayoutofPP-RPipelineLiFayuan(84……………………………………………………………………)Abstract:Somehot-pointproblemsinthedirectconcealedinstallationofPP-Rpipelineindwellinghouseconstruc-tionarediscussed,includingtheselectionofpipematerial,themannerofconcealedinstallation,thethermaljointingofpipesandthepressuretestingofpipeline.Theseshallbehelpfultoimprovetheinstallationqualityandtoguaranteethenormalwatersupply.OntheDesignandCalculationinJackingLayoutofPipelineHeLianetal(87………………………………………………)Abstract:Basedontheproblemsliedinthedesigningofthejackingforce,throughcomparingandanalyzingjack-ingforceofthelivingexamples,thechanginglawofthejackingforcewasstudiedsystematicallyandamethodforthedesigningofjackingforcewassummaried.ExperiencesonConstructionofLarge-CapacityWaterworksandtheAutomationSysteminJiuxiWaterworksJiangJishenetal(90………………………………………………………………………………………………………)Abstract:JiuXiWaterworksinHangzhoucityisoneofthemostadvancedwaterenterprisesintheworld.Theau-tomationsystemofthiswaterworksisdistinctiveineverystageofconstructionfromtheinvitingtender,design,constructionandtrialoperationtonormalperformance.Inthedesignoftheautomationsystemstandby(redundant)operationandotheradvancedtechniquesof1990'sworldwidew