Removal of phenol from aqueous solution using biochar produced from Araucaria Columnaris Bark

Removal of phenol from aqueous solution using biochar produced from Araucaria Columnaris Bark | 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 Removal of phenol from aqueous solution using biochar produced from Araucaria Columnaris Bark Dinesh Chandola, Pooja Thathola, Ankit Bisht This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-748301/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 Abstract This work investigates the removal of phenol from aqueous solution using Araucaria Columnaris bark (ACB) as biochar. Five different types of biochars were developed through pyrolysis at different temp from 300 to 500°C. The effects of initial concentration, contact time, pH and temperature on adsorption behavior were studied in batch mode for each biochar. The optimum contact time observed for equilibrium condition was 60 mins for every biochar. And, the maximum adsorption followed the order 298 K > 308 K > 318 K. Adsorption equilibrium data were fitted to Langmuir and Freundlich isotherms by non-linear regression method and kinetic data by linear regression method, and fitted to pseudo-first order, pseudo-second order and Intraparticle diffusion models. Adsorption kinetics was reasonably described by pseudo-second order model with R 2 value 0.99. Thermodynamic parameters were also estimated that implied, the adsorption process was spontaneous and exothermic in nature. Study further showed that the acidic pH increased adsorption capacity of biochar but decreases continuously towards basic side. The removal of phenol with prepared biochar was achieved as high as 100 % for ACB-500. The maximum iodine adsorption value of prepared biochar was found to be 453.3 mg/g. Environmental Engineering Biochar preparation and characterization reaction kinetics and isotherm study Phenol removal and thermodynamic study 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-748301","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research","associatedPublications":[],"authors":[{"id":44353014,"identity":"9a738ad5-6f2b-491e-a25c-b1d60468a3a3","order_by":0,"name":"Dinesh Chandola","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABDElEQVRIiWNgGAWjYBAC/hlAgofBAkgmNgCJA3Ig0QMP8GiRuAHWIgHXYgzWkoBHi0EEXAtY2QGwRga8WqSbnz14UyEhz8Ce3Pbgw5876fPDDj8E2mInp9uAQ4vMMXPDOWckDBt4HrYbzmx7lrvxdpoBUEuysdkBHFokEsykedskGBskEtukeRsO526cnQDSciBxG04t6d9AWuzBWv78OZxuODv9A34tETlgWxLBWhjYDifIS+fgt0XiRk6ZJNAvyW08D9ske9sOG26Qzik4kGCA2y/8M9K3SbypsLHtZ09/JvHjz2F5+dnpmz98qLCTw6UFDtjgTgWrNCCgHAXIN5CiehSMglEwCkYCAABz2mOHWm/aMQAAAABJRU5ErkJggg==","orcid":"","institution":"GBPIHED: Govind Ballabh Pant National Institute of Himalayan Environment and Sustainable Development","correspondingAuthor":true,"prefix":"","firstName":"Dinesh","middleName":"","lastName":"Chandola","suffix":""},{"id":44353015,"identity":"af36e52c-eb79-4521-ac03-4f56cd3f2f45","order_by":1,"name":"Pooja Thathola","email":"","orcid":"","institution":"GB Pant Institute of Himalayan Environment and Development: Govind Ballabh Pant National Institute of Himalayan Environment and Sustainable Development","correspondingAuthor":false,"prefix":"","firstName":"Pooja","middleName":"","lastName":"Thathola","suffix":""},{"id":44353016,"identity":"15bcfe55-b622-4611-bc90-5fa7ff27d298","order_by":2,"name":"Ankit Bisht","email":"","orcid":"","institution":"IMS Unison University","correspondingAuthor":false,"prefix":"","firstName":"Ankit","middleName":"","lastName":"Bisht","suffix":""}],"badges":[],"createdAt":"2021-07-24 16:14:43","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-748301/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-748301/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[],"financialInterests":"","formattedTitle":"Removal of phenol from aqueous solution using biochar produced from Araucaria Columnaris Bark","fulltext":[{"header":"Full Text","content":"This preprint is available for \u003ca href='/article/rs-748301/latest.pdf' target='_blank'\u003edownload as a PDF\u003c/a\u003e."}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Biochar preparation and characterization, reaction kinetics and isotherm study, Phenol removal and thermodynamic study","lastPublishedDoi":"10.21203/rs.3.rs-748301/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-748301/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Abstract\nThis work investigates the removal of phenol from aqueous solution using Araucaria Columnaris bark (ACB) as biochar. Five different types of biochars were developed through pyrolysis at different temp from 300 to 500°C. The effects of initial concentration, contact time, pH and temperature on adsorption behavior were studied in batch mode for each biochar. The optimum contact time observed for equilibrium condition was 60 mins for every biochar. And, the maximum adsorption followed the order 298 K \u003e 308 K \u003e 318 K. Adsorption equilibrium data were fitted to Langmuir and Freundlich isotherms by non-linear regression method and kinetic data by linear regression method, and fitted to pseudo-first order, pseudo-second order and Intraparticle diffusion models. Adsorption kinetics was reasonably described by pseudo-second order model with R 2 value 0.99. Thermodynamic parameters were also estimated that implied, the adsorption process was spontaneous and exothermic in nature. Study further showed that the acidic pH increased adsorption capacity of biochar but decreases continuously towards basic side. The removal of phenol with prepared biochar was achieved as high as 100 % for ACB-500. 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