河南科技HenanScienceandTechnology化工与材料工程总第802期第8期2023年4月MBBR+双层沉淀池贴建应用于集约型污水厂的扩建厉智成程树辉李张卿龚远君（北京市市政工程设计研究总院有限公司，北京100086）摘要：【目的】湛江某污水厂处理能力不能满足区域内污水量增加，需扩建8万t。【方法方法】结合现状条件，综合比较MBR和MBBR+双层沉淀池+磁混凝两种方案，考虑进水总磷达17.55mg/L，会使膜清洗频率增大，减少膜寿命，增加运行成本。因此，采用“MBBR+沉淀池+磁混凝”核心处理工艺。厂区主要构筑物贴建，进一步减少用地。【结果结果】水厂于2021年投产运行，出水可稳定达标。【结论结论】泥膜复合工艺+双层沉淀池+磁混凝可解决扩建用地紧张问题，运行成本约0.87元/m3。关键词：MBBR；双层沉淀池；贴建中图分类号：X703文献标志码：A文章编号：1003-5168（2023）08-0092-06DOI：10.19968/j.cnki.hnkj.1003-5168.2023.08.019MBBR+DoubleLayerSedimentationTankConstructionAppliedtotheExpansionofIntensiveWastewaterTreatmentPlantLIZhichengCHENGShuhuiLIZhangqingGONGYuanjun（BeijingGeneralMunicipalEngineeringDesign&ResearchInstituteCo.,Ltd.,Beijing100086,China）Abstract:[Purposes]ThetreatmentcapacityofasewageplantinZhanjiangcannotmeettheincreaseintheamountofsewageintheregion,anditneedstobeexpandedby80000tons.[Methods]Basedoncur⁃rentconditions,acomprehensivecomparisonwasmadebetweenMBRandMBBR+doublelayersedimen⁃tationtank+magneticcoagulationschemes.Consideringthatthetotalphosphorusintheinfluentwaterreaches17.55mg/l,itwillincreasethemembranecleaningfrequency,reducethemembranelife,andin⁃creasetheoperatingcost.Therefore,thecoretreatmentprocessof"MBBR+sedimentationtank+magneticcoagulation"isadopted.Themainstructuresintheplantareaarebuilttofurtherreducelanduse.[Findings]Thewaterplantwasputintooperationin2021,andtheeffluentcanstablyreachthestan⁃dard.[Conclusions]Mudfilmcompositeprocess+doublelayersedimentationtank+magneticcoagulationcansolvetheproblemoflandshortageforexpansion,withanoperatingcostofabout0.87yuan/m3.Keywords:MBBR;doublelayersedimentationtank;sticktobuild0引言随着大湾区政策的提出，广东省各市进入新一轮高速发展和建设阶段。对于污水处理...
