Continuous Electricity Generation from Charged Total Dissolved Solids in Wastewater Using a Bio-based Ion-Selective Power Generator

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Abstract Exploring the potential for secondary utilization of wastewater is a prudent strategy to achieve "take-make-use-dispose" circular economy. Taking advantages of wood's hierarchical structure and large surface area, in this project, we fabricated surface-encapsulated anion-selective (S-AWM) and cation-selective (S-CWM) wood membranes (comprising up to 98% eco-friendly materials) through a two-step process: dip-coating with either positively charged 2(dimethylamino)ethyl methacrylate or negatively charged acrylic acid, followed by energy-efficient sunlight-induced polymerization. The output voltage and current of a single modified wood cell (R x T x L: 20 x 20 x 3 mm3) in modulated wastewater from flue gas desulfurization are 55 mV and 0.6 µA, respectively, tenfold higher than that of untreated wood cells. When five cells are connected in series, the output voltage reaches 0.27 V, sufficient to power simple electronic devices. This underscores its potential for scaling up and its viability for future applications in industrial power plants.
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Continuous Electricity Generation from Charged Total Dissolved Solids in Wastewater Using a Bio-based Ion-Selective Power Generator | 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 Article Continuous Electricity Generation from Charged Total Dissolved Solids in Wastewater Using a Bio-based Ion-Selective Power Generator Wenqing Yan, Jianguo Sun, Jonas Garemark, Maria Cortes Ruiz, Kunkun Tu, and 9 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3513100/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 Exploring the potential for secondary utilization of wastewater is a prudent strategy to achieve "take-make-use-dispose" circular economy. Taking advantages of wood's hierarchical structure and large surface area, in this project, we fabricated surface-encapsulated anion-selective (S-AWM) and cation-selective (S-CWM) wood membranes (comprising up to 98% eco-friendly materials) through a two-step process: dip-coating with either positively charged 2(dimethylamino)ethyl methacrylate or negatively charged acrylic acid, followed by energy-efficient sunlight-induced polymerization. The output voltage and current of a single modified wood cell (R x T x L: 20 x 20 x 3 mm3) in modulated wastewater from flue gas desulfurization are 55 mV and 0.6 µA, respectively, tenfold higher than that of untreated wood cells. When five cells are connected in series, the output voltage reaches 0.27 V, sufficient to power simple electronic devices. This underscores its potential for scaling up and its viability for future applications in industrial power plants. Physical sciences/Energy science and technology/Renewable energy Physical sciences/Materials science/Materials for devices Power generation bio-based ion selectivity wastewater Full Text Additional Declarations There is NO Competing Interest. Supplementary Files draftSIYanetal.pdf 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. 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