Integrated ultrafiltration and pervaporation process using PDMS/ZnO-modified PSf nanohybrid membranes for enhanced bioethanol purification from fermentation broth
Tutuk Djoko Kusworo , Febio Dalanta , Dita Aulia Azizah , Adrian Nataldipa Putra , Tasya Paramita Hendratmo , Muhammad Itsar Hanif , Ilham Alkian , Tonny Agustiono Kurniawan
{"title":"Integrated ultrafiltration and pervaporation process using PDMS/ZnO-modified PSf nanohybrid membranes for enhanced bioethanol purification from fermentation broth","authors":"Tutuk Djoko Kusworo , Febio Dalanta , Dita Aulia Azizah , Adrian Nataldipa Putra , Tasya Paramita Hendratmo , Muhammad Itsar Hanif , Ilham Alkian , Tonny Agustiono Kurniawan","doi":"10.1016/j.cscee.2025.101278","DOIUrl":null,"url":null,"abstract":"<div><div>Bioethanol is a promising alternative to fossil fuels, but its separation from water remains challenging due to the presence of the azeotropic point. This study investigates a pervaporation membrane comprising a polydimethylsiloxane (PDMS) selective layer supported on a polysulfone (PSf) layer modified with ZnO nanoparticles. The optimized pervaporation membrane with 3 wt% PDMS and 1 wt% ZnO, achieved a stable flux of 1014.45 g m<sup>−2</sup> h<sup>−1</sup> and a separation factor of 3.96 at 50 °C. Pretreatment using ultrafiltration removed most of impurities reached 100 % and 67 % for yeast and glucose, respectively, significantly improving the membrane's performance and operational stability. This integrated ultrafiltration-pervaporation process offers an efficient process for bioethanol purification.</div></div>","PeriodicalId":34388,"journal":{"name":"Case Studies in Chemical and Environmental Engineering","volume":"12 ","pages":"Article 101278"},"PeriodicalIF":0.0000,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Chemical and Environmental Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666016425001859","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0
Abstract
Bioethanol is a promising alternative to fossil fuels, but its separation from water remains challenging due to the presence of the azeotropic point. This study investigates a pervaporation membrane comprising a polydimethylsiloxane (PDMS) selective layer supported on a polysulfone (PSf) layer modified with ZnO nanoparticles. The optimized pervaporation membrane with 3 wt% PDMS and 1 wt% ZnO, achieved a stable flux of 1014.45 g m−2 h−1 and a separation factor of 3.96 at 50 °C. Pretreatment using ultrafiltration removed most of impurities reached 100 % and 67 % for yeast and glucose, respectively, significantly improving the membrane's performance and operational stability. This integrated ultrafiltration-pervaporation process offers an efficient process for bioethanol purification.