广州市大坦沙污水处理厂三期工程设计研究

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1、-F』到=。、铷一I⑧天毕大薯÷目近代第-P#．k半-r程硕士学位论文领域作者姓名指导教师企业导师环境工程胡春茸朱立亭副救援型堕量白占天津大学研究生院2004年1，月AbstractWiththeindustrialdevelopment，populationincreaseandetc．，pollutiontoriversofthecitybecomesmoreandmoreheavy．Tospeeduptheconsuctionofmunicipalwastewatertreatmentplantisnowqui

2、teurgent．Withtheanalysisoftheexistingwaterquality，consideningthedesignandactualinflowquailtyofDatanshaph．1&2，inlowqualityofphase3isdeterminedas：BODs=120m鲋，CODcr=250mg／1，SS=150m酣，NH3-N=3嘶鲋，T—P--4mg／1．EffluentqualityWasdaerminedB5BODs=20mg／1．CODcr=60mg／1，SS。20mg／

3、1．NH3-N=10rag／1，T-P=0．5m鲋，accordingtorequirementsfromlocalenvironmentprotectionauthorityandreceivingbody．Datansllawastewatertreatmentplantphace1isoneoftheearlistnitrogenromovalanddephosphoraseplants．WhichWaSputmtouseinNovember1989．Theconstructioncapacityis150，0

4、00m。／d．TreatmentprocessWaSnitrogenromovalanddephosphorascactivesludgeA20．Thickeninganddewateringprocessisusedforsludgetreatment．Phase2projectWaSputintouseintheendof1996，capacityofwhichWasstill150，000m’／d．Treatmentprocessofsewageandsludgeforphase2WaSsanleasthato

5、fphase1．Theinflowqualityinoperationperiodofphase1waslowerthandesigndata．ThereforethedesigninflowqualityWasmottledforphase2．TotaltreatmentcapacityofphaseiandphaSe2WaS330，000m’／d．Thecapacityofphase3is220，000m3／d．TreatmentprocessappliedW88determinedaSinnovatedA‘Op

6、rocess、Ⅳitllreturnsludgedemitriflcationsectionafterdetaileconomicandtechricalcomparisonstudg．Sludgewillbethichenedanddewatered．Forfarfuturestage，sludgedryingplusincinerationproccsswillbeused．Totalinvestmentoftheprojectwillbe210．84millionyuan．Unitconstranationco

7、stwillbe958．35yuan／m3．Annnualtotalproductioncostwillbe40．90millionyuanandunitproductioncostisO．509yuan／ms．Annualoperationcostwillbe30．43millionyuanandunitoperationcostisO．379yuan／m3．PowercomsumptionwillbeO．229kwh／m3．Landoccupationwillbe0．232me／m3．Afterphase3put

8、tingmtooperation,thesewagetreatmentrateofGuang吐ouwillbeincreaSedfroml9．6％t027．5％．ThepollutantsdischargewillalSObereducedforexample．15,257ffyearforCODer,8,030t／yearforBODs，10