昆明第四水质净化厂MBR工艺7年运行实践分析

2020/2/25昆明第四水质净化厂MBR工艺7年运行实践分析https://x.cnki.net/read/article/xmlonline?filename=GSPS201714033&tablename=CJFDTOTAL&dbcode=CJFD&topic=&fileSourceType=1&taskId…1/11中国给水排水,2017,14,121-127昆明第四水质净化厂MBR工艺7年运行实践分析AnalysisofMBRof7YearsPracticalOperationintheFourthWastewaterPurificationPlantofKunmingYANGXue-guiXIAOXiao-wenSUNYanZHANGYa-ningKunmingFourthWastewaterTreatmentPlantKunmingCitySewageTreatmentOperationCo.Ltd.杨学贵肖晓文孙雁张亚宁昆明市第四水质净化厂昆明城市污水处理运营有限责任公司摘要:昆明第四水质净化厂由ICEAS工艺改造为MBR工艺,最大限度地利用了原有构筑物。MBR工艺省去了传统工艺的二沉池、深度处理工段,占地面积小,出水水质可达到再生水回用标准。该厂MBR工艺运行7年来,MLSS控制在50007000mg/L,出水TN<10mg/L,能耗为0.470.56kW·h/m3。分析了MBR内部配水、曝气、回流、节能降耗优化情况,MLSS、TMP与MBR使用年限及产水量之间的平衡关联,总结了膜清洗及维护的经验和教训,指出膜清洗本质并不复杂,MBR工艺可持续的最大约束性条件是使用到期时更换膜的经济成本相对较大。关键词:MBRICEAS能耗膜清洗作者简介：杨学贵(1965-),男,云南昆明人,大学本科,主要从事污水处理运行管理工作,现任昆明市第四水质净化厂副厂长。E-mail:yry366@163.com收稿日期：2017-04-19Abstract：InthefourthwastewaterpurificationplantofKunming,thetreatmentprocesswasconvertedfromICEASprocesstoMBRprocesssoastofullyadopttheoriginalstructures.TherewasnosecondarysedimentationtankandadvancedtreatmentstageinMBRprocesscomparedtothetraditionalprocess.TheoccupationareaofMBRwasrelativelysmall,theeffluentqualitycouldreachthereclaimedwaterreusestandard.SevenyearsoperationofMBRexhibitedeffectiveperformance,MLSSwascontrolledbetween5000-7000mg/L,effluentTNwasbelow10mg/L,energyconsumptionwasfrom0.47to0.56kW·h/m3.Basedontheanalysisofwastewaterdistribution,aeration,reflux,andoptimizationofenergyconsumption,itwasconcludedthattherewasbalanceamongMLSS,TMPandMBRservicelifeandwaterproduction.Aftersummaryoftheexperienceofmembranecleaningandmaintenance,thesimpleessenceofmembranecleaningofMBRprocesswaspointedout,themaximumsustainableconstraintfactorwastherelativelyhigheconomiccostsofmembranereplacement.Keyword：MBR，ICEAS，energyconsumption，membranecleaning2020/2/25昆明第四水质净化厂MBR工艺7年运行实践分析https://x.cnki.net/read/article/xmlonline?filename=GSPS201714033&tablename=CJFDTOTAL&dbcode=CJFD&topic=&fileSourceType=1&taskId…2/111升级改造前后设计参数及运行情况1.1ICEAS工艺流程及设计参数1.2提标升级改造MBR工艺