MBBR用于某CAST工艺污水处理厂提标改造的效能及碳排放分析张玲丽1,顾敦罡1*,陆嘉麒1,张楠1,李光辉1,胡立江2,3,贾洪柏2,3,王寅义41.上海工程技术大学化学化工学院2.安吉国千环境科技有限公司3.浙江国阡环境与节能工程研究院4.安吉净源污水处理有限公司摘要通过对比分析浙江省某污水处理厂提标改造前后的运行数据,研究移动床生物膜反应器(MBBR)工艺镶嵌循环式活性污泥工艺(CAST)对系统污染物去除效果以及电耗、药耗、物耗对碳排放量的影响。结果表明:MBBR工艺强化了系统的生物脱氮除磷效果,提高了系统的抗冲击负荷能力。改造后污水处理厂出水COD与NH3-N、TN、TP浓度的全年平均值分别为13.7、0.2、4.3、0.05mg/L,均能稳定达到浙江省地方标准DB33/2169—2018《城镇污水处理厂主要水污染物排放标准》要求。改造后污水处理厂内部电耗分布无明显变化,吨水电耗增加19%,而全年消耗的外加碳源、混凝剂、消毒剂均不同程度下降,吨水药剂总用量减少44%。改造后污水处理厂碳排放量由1.04kg/m3降至0.79kg/m3,处理过程产生的CH4和物耗对污水处理厂整体碳排放的贡献较大。关键词原位改造;移动床生物膜反应器(MBBR);污染物去除效率;电耗;药耗;碳排放中图分类号:X703文章编号:1674-991X(2023)02-0679-08doi:10.12153/j.issn.1674-991X.20220267PerformanceandcarbonemissionofapplyingCASTembeddedwithMBBRtoretrofitawastewatertreatmentplantZHANGLingli1,GUDungang1*,LUJiaqi1,ZHANGNan1,LIGuanghui1,HULijiang2,3,JIAHongbai2,3,WANGYinyi41.SchoolofChemistryandChemicalEngineering,ShanghaiUniversityofEngineeringScience2.AnjiGoachieveEnvironmentTechnologiesCo.,Ltd.3.ZhejiangGuoqianEnvironmentandEnergyEngineeringResearchInstitute4.AnjiJingyuanWastewaterTreatmentCo.,Ltd.AbstractTheeffectsofapplyingthecyclicactivatedsludgetechnology(CAST)processembeddedwithmovingbedbiofilmreactor(MBBR)onpollutantremoval,electricityconsumption,chemicalconsumption,andcarbonemissionwereinvestigatedbycomparingandanalyzingtheoperationaldataofawastewatertreatmentplant(WWTP)inZhejiangProvincebeforeandafterupgradingandretrofit.TheresultsshowedthatMBBRcouldstrengthenthebiologicalremovalofnitrogenandphosphorusandimprovetheanti-shockloadingcapacityofthesystem.Afterretrofitting,thewaterqualityo...