The fate of wood wastes: from the gasification and its application as adsorbent of textile pollutants

The fate of wood wastes: from the gasification and its application as adsorbent of textile pollutants | 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 The fate of wood wastes: from the gasification and its application as adsorbent of textile pollutants Luiz Martins Pereira Neto, Tiago José Marques Fraga, Maryne Patrícia da Silva, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6735995/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 22 Oct, 2025 Read the published version in Environmental Science and Pollution Research → Version 1 posted 6 You are reading this latest preprint version Abstract This work reports the use of wood wastes (WWs) to generate clean energy through gasification. WW chips were fed into two gasifiers, which generated 24.7 kWe and 1.2 kWe of electrical energy. Each gasifier generated synthesis gas (CO + H 2 ) and biochar as solid residue. Furthermore, biochar samples were employed as low-cost adsorbent for textile dyes, and was characterized through porosity (BET), scanning electron microscopy (SEM), thermogravimetry (TGA), infrared spectroscopy (FTIR), X-ray diffraction and point of zero charge techniques. A 2² factorial planning was carried out to investigate the effects of agitation velocity and particle size over the adsorption. Kinetic and equilibrium studies were applied to achieve the adsorption parameters of the biochars: kinetic constant, 0.08–0.54 g/mg/min (for pseudo-second-order model), maximum adsorption capacity 190–192 mg/g and equilibrium time 60 min; the data were compared with commercial activated carbon. Biochar material was pointed as the best alternative from the environmental point of view. This is due to the gasifier capacity to generate greater amounts of energy. Moreover, biochar structure exhibited a great uniformity and although its surface area is smaller than wood residue biochar, the average pores diameter is larger which may end up compensating. Real textile wastewater was collected from laundry effluent and its fate after adsorption onto the three samples of biochars was analyzed through phytotoxicity assessment, which showed germination index varying from 50%– 98%. Therefore, the results were very promising for wood residue biochars, with maximum adsorption capacity (192 mg/g) similarly to commercial activated carbon. adsorption circular economy clean energy gasification textile wastewater wastes reuse Full Text Supplementary Files SupplementaryMaterial.docx Cite Share Download PDF Status: Published Journal Publication published 22 Oct, 2025 Read the published version in Environmental Science and Pollution Research → Version 1 posted Editorial decision: Major Revision 14 Jul, 2025 Reviewers agreed at journal 06 Jun, 2025 Reviewers invited by journal 05 Jun, 2025 Editor invited by journal 05 Jun, 2025 Editor assigned by journal 03 Jun, 2025 First submitted to journal 30 May, 2025 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. 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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-6735995","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":467016712,"identity":"4db9b923-9672-42c4-9b49-0783b8b18eb1","order_by":0,"name":"Luiz Martins Pereira Neto","email":"","orcid":"","institution":"Federal Rural University of Pernambuco: Universidade Federal Rural de Pernambuco","correspondingAuthor":false,"prefix":"","firstName":"Luiz","middleName":"Martins Pereira","lastName":"Neto","suffix":""},{"id":467016713,"identity":"2c329288-5938-48ae-8323-ef3e3874a956","order_by":1,"name":"Tiago José Marques 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