Jing Luo, Tingxi Liu, Weiwei Chen, Caixia Dong, Jianguo Liu
{"title":"Dye wastewater treatment and membrane fouling in a moving bed-UV-photocatalytic modified membrane bioreactor","authors":"Jing Luo, Tingxi Liu, Weiwei Chen, Caixia Dong, Jianguo Liu","doi":"10.1039/d4ew00474d","DOIUrl":null,"url":null,"abstract":"A moving bed-UV-photocatalytic modified membrane bioreactor (MB-UVPMBR)system effectively removed organic matter, and the removal efficiency of LanasolBlue 3R (LB) reached 85.1%, which was significantly greater than that in a movingbed membrane bioreactor (MBMBR) system. The dye removal efficiency of the system was enhanced as a result of the degradation of LB by a polyvinylidene fluoride(PVDF)/TiO2-modified membrane under UV irradiation. An analysis of the membrane resistance distributions of the two systems showed that the main cause of membrane fouling was the deposition of a cake layer on the membrane surface. The membrane in the MB-UVPMBR exhibited a 67.5%reduction in total filtration resistance compared to the membrane in the MBMBR，attributed to the hydrophilicity and photocatalytic properties of the PVDF/TiO2-modified. Overall，the removal efficiency of organic pollutants in the MB-UVPMBR system was better than that in the MBMBR system.","PeriodicalId":75,"journal":{"name":"Environmental Science: Water Research & Technology","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Science: Water Research & Technology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1039/d4ew00474d","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
A moving bed-UV-photocatalytic modified membrane bioreactor (MB-UVPMBR)system effectively removed organic matter, and the removal efficiency of LanasolBlue 3R (LB) reached 85.1%, which was significantly greater than that in a movingbed membrane bioreactor (MBMBR) system. The dye removal efficiency of the system was enhanced as a result of the degradation of LB by a polyvinylidene fluoride(PVDF)/TiO2-modified membrane under UV irradiation. An analysis of the membrane resistance distributions of the two systems showed that the main cause of membrane fouling was the deposition of a cake layer on the membrane surface. The membrane in the MB-UVPMBR exhibited a 67.5%reduction in total filtration resistance compared to the membrane in the MBMBR，attributed to the hydrophilicity and photocatalytic properties of the PVDF/TiO2-modified. Overall，the removal efficiency of organic pollutants in the MB-UVPMBR system was better than that in the MBMBR system.
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Environmental Science: Water Research & Technology seeks to showcase high quality research about fundamental science, innovative technologies, and management practices that promote sustainable water.
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