Jing Luo, Tingxi Liu, Weiwei Chen, Caixia Dong and Jianguo Liu
{"title":"移动床-紫外光催化改性膜生物反应器中的染料废水处理和膜堵塞问题","authors":"Jing Luo, Tingxi Liu, Weiwei Chen, Caixia Dong and Jianguo Liu","doi":"10.1039/D4EW00474D","DOIUrl":null,"url":null,"abstract":"<p >A moving bed-UV-photocatalytically modified membrane bioreactor (MB-UVPMBR) system effectively removed organic matter, and the removal efficiency of Lanasol blue 3R (LB) reached 85.1%, which was significantly greater than that of a moving bed 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)/TiO<small><sub>2</sub></small>-modified membrane under UV irradiation. An analysis of the membrane resistance distributions of the two systems revealed that the main cause of membrane fouling was the deposition of a cake layer on the membrane surface. Compared with the membrane in the MBMBR system, the membrane in the MB-UVPMBR system exhibited a 67.5% reduction in total filtration resistance, which was attributed to the hydrophilicity and photocatalytic properties of the PVDF/TiO<small><sub>2</sub></small>-modified material. Overall, the removal efficiency of organic pollutants in the MB-UVPMBR system was better than that in the MBMBR system.</p>","PeriodicalId":75,"journal":{"name":"Environmental Science: Water Research & Technology","volume":" 10","pages":" 2478-2490"},"PeriodicalIF":3.1000,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dye wastewater treatment and membrane fouling in a moving bed-UV-photocatalytically modified membrane bioreactor†\",\"authors\":\"Jing Luo, Tingxi Liu, Weiwei Chen, Caixia Dong and Jianguo Liu\",\"doi\":\"10.1039/D4EW00474D\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >A moving bed-UV-photocatalytically modified membrane bioreactor (MB-UVPMBR) system effectively removed organic matter, and the removal efficiency of Lanasol blue 3R (LB) reached 85.1%, which was significantly greater than that of a moving bed 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)/TiO<small><sub>2</sub></small>-modified membrane under UV irradiation. An analysis of the membrane resistance distributions of the two systems revealed that the main cause of membrane fouling was the deposition of a cake layer on the membrane surface. Compared with the membrane in the MBMBR system, the membrane in the MB-UVPMBR system exhibited a 67.5% reduction in total filtration resistance, which was attributed to the hydrophilicity and photocatalytic properties of the PVDF/TiO<small><sub>2</sub></small>-modified material. Overall, the removal efficiency of organic pollutants in the MB-UVPMBR system was better than that in the MBMBR system.</p>\",\"PeriodicalId\":75,\"journal\":{\"name\":\"Environmental Science: Water Research & Technology\",\"volume\":\" 10\",\"pages\":\" 2478-2490\"},\"PeriodicalIF\":3.1000,\"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://pubs.rsc.org/en/content/articlelanding/2024/ew/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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Science: Water Research & Technology","FirstCategoryId":"93","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ew/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}
Dye wastewater treatment and membrane fouling in a moving bed-UV-photocatalytically modified membrane bioreactor†
A moving bed-UV-photocatalytically modified membrane bioreactor (MB-UVPMBR) system effectively removed organic matter, and the removal efficiency of Lanasol blue 3R (LB) reached 85.1%, which was significantly greater than that of a moving bed 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 revealed that the main cause of membrane fouling was the deposition of a cake layer on the membrane surface. Compared with the membrane in the MBMBR system, the membrane in the MB-UVPMBR system exhibited a 67.5% reduction in total filtration resistance, which was attributed to the hydrophilicity and photocatalytic properties of the PVDF/TiO2-modified material. Overall, the removal efficiency of organic pollutants in the MB-UVPMBR system was better than that in the MBMBR system.
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