净水技术2023,42(2):103-108WaterPurificationTechnology范辉,高燕宁,刘克成,等.生物载体缓解管式膜MBR工艺中的膜污染[J].净水技术,2023,42(2):103-108.FANH,GAOYN,LIUKC,etal.MembranefoulingmitigationintubularmembraneMBRprocesswithbiocarriers[J].WaterPurificationTechnology,2023,42(2):103-108.生物载体缓解管式膜MBR工艺中的膜污染范辉1,高燕宁1,∗,刘克成1,魏伟2(1.国网河北省电力有限公司电力科学研究院,河北石家庄050021;2.天津伊唯信科技有限公司,天津300384)摘要膜污染一直是影响膜生物反应器(MBR)工艺稳定运行的难题。试验研究了浮球填料的加入对好氧管式膜MBR工艺中膜污染的影响规律及机理。结果表明,生物载体的加入能够显著减缓膜污染。与没有生物载体的MBR相比,载体填充率达到40%时可使滤饼层阻力下降约60.7%,孔堵阻力下降约90.6%,单周期运行时间延长约83.3%。机理分析表明,载体型MBR中悬浮污泥粒度明显增大,不可逆膜污染主要组分溶解性胞外聚合物(EPS)含量显著减少,而且EPS中蛋白质相对比例增加,滤饼层与膜面间的结合程度减弱,可改善低压冲洗和化学清洗效果。关键词管式膜膜生物反应器(MBR)浮球填料载体填充率膜污染中图分类号:X703文献标识码:A文章编号:1009-0177(2023)02-0103-06DOI:10.15890/j.cnki.jsjs.2023.02.013MembraneFoulingMitigationinTubularMembraneMBRProcesswithBiocarriersFANHui1,GAOYanning1,∗,LIUKecheng1,WEIWei2(1.ElectricPowerResearchInstitute,StateGridHebeiElectricPowerCo.,Ltd.,Shijiazhuang050021,China;2.TianjinYiweixinTechnologyCo.,Ltd.,Tianjin300384,China)AbstractMembranefoulingisrecognizedasaproblemthataffectsthestableoperationofthemembranebioreactor(MBR)process.Inthispaper,theinfluencelawandmechanismoffloatingballcarriersonmembranefoulingintubularmembraneMBRprocesswasstudied.Theexperimentalresultssuggestedthattheadditionofbiocarrierssignificantlyalleviatedmembranefouling.ComparedwiththeMBRwithoutcarriers,inMBRwith40%fillerfillingrate,thecakelayerresistancewasreducedbyabout60.7%,andtheporeblockingresistancewasreducedbyabout90.6%,whichresultedinabout83.3%extensioninsinglecycleoperationtimeofMBR.MechanismanalysissuggestedthattheparticlesizeofthesuspendedsludgeinMBRwithcarrierswassignificantlyincreased.Thedissolvedextrac...
