Bio-Electrochemical Systems for Simultaneous Wastewater Treatment and Green Hydrogen Production in a Decarbonized Energy Transition

Bio-Electrochemical Systems for Simultaneous Wastewater Treatment and Green Hydrogen Production in a Decarbonized Energy Transition | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Bio-Electrochemical Systems for Simultaneous Wastewater Treatment and Green Hydrogen Production in a Decarbonized Energy Transition Rajesh M This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7493667/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Microbial electrolysis cells (MECs) are used in this study to cleanse wastewater and produce green hydrogen in a decarbonised energy transition framework. The system produced steady hydrogen generation rates surpassing 18 L m⁻² d⁻¹ with ≥ 95% purity, COD elimination, and energy efficiency under fluctuating influent circumstances by using soft-sensor validation, forecasting, and supervisory control methodologies. MEC-derived hydrogen reduced global warming potential by 52% compared to traditional steam methane reforming, demonstrating its environmental benefits. However, difficulties such electrode passivation, membrane fouling, and cost fluctuation (2.1–3.8 $ kg⁻¹) require long-term durability research and techno-economic optimisation. MECs show promise for energy-positive wastewater treatment, cyclic resource recovery, and carbon-neutral hydrogen generation. Bio-electrochemical systems microbial electrolysis cell wastewater treatment green hydrogen decarbonization life cycle assessment supervisory control techno-economic analysis Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7493667","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":518277890,"identity":"b56dc94c-d400-4141-bc4f-7de2b4ab097f","order_by":0,"name":"Rajesh 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