乌鲁木齐市居民小区生活污水再生利用经济性分析_王维红
- 污水处理护水清
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2020-02-29 22:33:11
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净水技术2020,39(1):124-129WaterPurificationTechnology扫我试试?王维红,董星辽,刘倩倩,等.乌鲁木齐市居民小区生活污水再生利用经济性分析[J].净水技术,2020,39(1):124-129.WANGWH,DONGXL,LIUQQ,etal.EconomicanalysisofwastewaterreclaimationandreuseforresidentialareainUrumqiCity[J].WaterPurificationTechnology,2020,39(1):124-129.乌鲁木齐市居民小区生活污水再生利用经济性分析王维红,董星辽,刘倩倩,王燕杉(新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052)摘要城市生活污水处理达标后可作为景观和绿化用水。为实现污水资源化,提高水资源利用率,对乌鲁木齐市已建成的32座小型生活污水回用工程进行详实调查,并对出水水质稳定达标的几种处理工艺的单方水投资及占地指标进行分析。结果表明,生物接触氧化法处理小区生活污水具有明显的效能,投资成本低,推荐为绿化回用水的主流工艺。探讨各种污水处理工艺的处理规模与经济指标之间的合理匹配关系。结果表明:生物接触氧化法工艺处理规模在500m3/d时最经济;MBR工艺处理规模在1000m3/d时最经济;“CASS+曝气生物滤池”工艺出水水质可以达到景观用水标准,适合规模小于1000m3/d的工程。通过接触氧化法(AO)典型工艺实例,分析其经济成本,为乌鲁木齐挑选经济有效的再生水回用方案提供借鉴。关键词中水回用污水处理工艺处理规模单位投资额中图分类号:TU992.3文献标识码:B文章编号:1009-0177(2020)01-0124-06DOI:10.15890/j.cnki.jsjs.2020.01.022EconomicAnalysisofWastewaterReclaimationandReuseforResidentialAreainUrumqiCityWANGWeihong,DONGXingliao,LIUQianqian,WANGYanshan(SchoolofWaterConservancyandCivilEngineering,XinjiangAgriculturalUniversity,Urumqi830052,China)AbstractTreateddomesticsewagecanbeusedaslandscapeandgreeningwaterafterreachingthedischargestandard.Inordertore-alizetheutilizationofsewageresourcesandimproveutilizationrateofwaterresources,adetailedinvestigationof32smalldomesticsewagereuseprojectsbuiltinUrumqiisconducted,unitinvestmentandlandquotaofseveraltreatmentprocesseswithstablewaterqualitystandardsarealsoanalyzed.Theresultsshowthatbiologicalcontactoxidationmethodhasobviousefficiencyintreatingresiden-tialsewage,andtheinvestmentcostislow.Mainstreamprocessofgreeningandreturningwaterisrecommended.Atthesametime,reasonablematchingrelationshipbetweentreatmentcapacityofvarioussewagetreatmentprocessesandeconomicindicatorsisalsodis-cussed.Biologicalcontactoxidationprocesshasthemosteconomicalscaleof500m3/d.MBRprocesshasthemosteconomicalscaleof1000m3/d.Effluenttreatedby“CASS+aeratedbiologicalfilter”canreachlandscapewaterstandard,andissuitableforengineeringscaleoflessthan1000m3/d.Economiccostofcontactoxidationprocess(AO)isanalyzedthroughat
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