2023年第43卷第1期化工环保ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY·137·技术应用“UBF—BAF—气浮—UF—树脂吸附—RO”工艺处理印染废水朱绍东1,周丰2,3,石洪雁2,3,王俊琪2,3,鲁明元2,3,蔡建国2,3(1.浙江省绍兴生态环境监测中心,浙江绍兴312099;2.江苏海普功能材料有限公司,江苏苏州215000;3.苏州市吸附与催化功能纳米材料工程技术研究中心,江苏苏州215000)[摘要]采用“复合式厌氧流化床反应器(UBF)—曝气生物滤池(BAF)—气浮—超滤(UF)—树脂吸附—反渗透(RO)”工艺对低浓度印染废水进行深度处理,通过60d的现场试验重点考察了树脂吸附对RO产水率、产水水质以及浓水水质的影响。试验结果表明:低浓度印染废水经该工艺处理后,RO产水COD≤30mg/L、产水率为75%~80%,满足中水回用要求;RO浓水COD≤150mg/L、色度≤50倍、SS约为35mg/L,符合纳管排放标准;系统稳定运行期间,平均处理成本为5.11元/t,扣除中水回用节约的用水费用后,综合处理成本仅1.36元/t。[关键词]印染废水;中水回用;树脂吸附;产水率[中图分类号]X791[文献标志码]A[文章编号]1006-1878(2023)01-0137-05[DOI]10.3969/j.issn.1006-1878.2023.01.021Treatmentofdyeingwastewaterbycombinationprocessof“UBF-BAF-floatation-UF-resinadsorption-RO”ZHUShaodong1,ZHOUFeng2,3,SHIHongyan2,3,WANGJungqi2,3,LUMingyuan2,3,CAIJianguo2,3(1.ZhejiangShaoxingEcologicalandEnvironmentalMonitoringCenter,Shaoxing312099,China;2.JiangsuHelperFunctionalMaterialsCo.Ltd.,Suzhou215000,China;3.SuzhouResearchCenterofAdsorption&CatalyticFunctionalNanoMaterialsEngineeringTechnology,Suzhou215000,China)Abstract:Theprocessof“UBF-BAF-floatation-UF-resinadsorption-RO”isusedforadvancedtreatmentoflowconcentrationdyeingwastewater.Theeffectsofresinadsorptiononwaterproductionrate,permeatewaterqualityandconcentratedwaterqualityofROstagewereinvestigatedthrough60don-sitetest.Theresultsshowthat:withthisprocess,theCODofROpermeatewaterislessthan30mg/Landthewaterproductionrateis75%-80%,whichmeetthetherequirementsforreclaimedwaterreuse;theCODofROconcentratedwaterislessthan150mg/L,thechromaislessthan50times,andtheSSisabout35mg/L,whichmeettheinfluentstandardfo...