Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin

Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin | 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 Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin Md. Faiaz Hossain, Md. Abdul Mottalib, Trisha Paul, Md. Aftab Ali Shaikh This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3954060/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 In the leather industry, 8–12% of chromium compound is used in tanning and around 60–70% of the applied chromium is consumed by the leather fibre and the rest of them are discharged to the effluent. This chromium has an adverse impact on the environment as well as on humans. Chromium (III) can be oxidized into chromium (VI) in many ways which are considered carcinogenic as well as mutagenic. Activated carbon generated from liming pelt trimming which is left over as a tannery solid waste with vegetable tannin (mimosa) was employed to investigate chromium (VI) adsorption from aqueous solutions. Activated carbon was prepared in a muffle furnace at 600 o C in the presence of sulfuric acid. Batch tests were performed to determine how several factors, such as pH, contact time, adsorbent dosage, initial chromium content, and temperature affected the adsorption process. The excellent maximum chromium (VI) removal efficiency was found 99.15% from aqueous solutions at pH 1 and an adsorbent dosage of 15 g/L. According to the kinetic investigation, the chromium (VI) removal by the activated carbon followed a pseudo-second-order kinetic with an R 2 of 0.9889. Thermodynamic parameters including ΔG o , ΔH o , and ΔS o revealed that the adsorption of chromium ions on the activated carbon was exothermic and spontaneous. The results prove that chromium (VI) could be removed from industrial wastewater using a very promising, cost-efficient biosorbent made from tannery solid waste. The novelty of the current approach is to utilize the tannery solid waste as an adsorbent to reduce the dangerous chemicals from the wastewater where pollutants will be eliminated by the treatment of waste. Adsorbent hexavalent chromium kinetics pollution solid waste Full Text Additional Declarations No competing interests reported. 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-3954060","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":272813071,"identity":"802f6725-2368-428c-b7dc-df9151da1161","order_by":0,"name":"Md. Faiaz Hossain","email":"","orcid":"","institution":"University of Dhaka","correspondingAuthor":false,"prefix":"","firstName":"Md.","middleName":"Faiaz","lastName":"Hossain","suffix":""},{"id":272813072,"identity":"42ec5aed-8def-4cda-b194-adf746ccd00d","order_by":1,"name":"Md. Abdul Mottalib","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA7ElEQVRIiWNgGAWjYDACCQYDhgcQJuOBxAYbxgYws4EZv5YEIM3DxsAA1JJGqhbGhsOEtfDPbt4mkcCwTc5evvnBgYc7zstuOMD88APjDmvcltw5VgbUctuYh43N4EDimdvGGw6wGUswnknH7bAbOWYgLYk9bAxALW23EzccYDBjYGw7jFOHPEIL+weglnNALezf8GoxQGjhAdlyAKiFB78thneOFVskGAD9ciynAOiXZOOZh3mKJRLx+EXudvPGGx8qbsuxNx/f+PDnDjvZvuPtGz98xBNiUOchc0AxkkBAwygYBaNgFIwC/AAAP7tdIxlS0EQAAAAASUVORK5CYII=","orcid":"","institution":"University of Dhaka","correspondingAuthor":true,"prefix":"","firstName":"Md.","middleName":"Abdul","lastName":"Mottalib","suffix":""},{"id":272813073,"identity":"bff05a80-fb0a-44a4-af8a-48bfd16ef399","order_by":2,"name":"Trisha Paul","email":"","orcid":"","institution":"Bangladesh Council of Scientific and Industrial Research","correspondingAuthor":false,"prefix":"","firstName":"Trisha","middleName":"","lastName":"Paul","suffix":""},{"id":272813074,"identity":"ad0984f8-35d7-4927-909a-027f86079f7c","order_by":3,"name":"Md. Aftab Ali Shaikh","email":"","orcid":"","institution":"University of Dhaka","correspondingAuthor":false,"prefix":"","firstName":"Md.","middleName":"Aftab Ali","lastName":"Shaikh","suffix":""}],"badges":[],"createdAt":"2024-02-13 17:29:23","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3954060/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3954060/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":62301086,"identity":"cd45ea01-e847-4998-8f15-21a14e7a9615","added_by":"auto","created_at":"2024-08-12 16:39:12","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":931836,"visible":true,"origin":"","legend":"","description":"","filename":"FaiazMottalibManuscriptFeb13.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3954060/v1_covered_c9bf3e2a-4c0d-4817-aa1b-ee15ebb4e63b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin","fulltext":[],"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":true,"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":"Adsorbent, hexavalent chromium, kinetics, pollution, solid waste","lastPublishedDoi":"10.21203/rs.3.rs-3954060/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3954060/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn the leather industry, 8\u0026ndash;12% of chromium compound is used in tanning and around 60\u0026ndash;70% of the applied chromium is consumed by the leather fibre and the rest of them are discharged to the effluent. This chromium has an adverse impact on the environment as well as on humans. Chromium (III) can be oxidized into chromium (VI) in many ways which are considered carcinogenic as well as mutagenic. Activated carbon generated from liming pelt trimming which is left over as a tannery solid waste with vegetable tannin (mimosa) was employed to investigate chromium (VI) adsorption from aqueous solutions. Activated carbon was prepared in a muffle furnace at 600\u003csup\u003eo\u003c/sup\u003eC in the presence of sulfuric acid. Batch tests were performed to determine how several factors, such as pH, contact time, adsorbent dosage, initial chromium content, and temperature affected the adsorption process. The excellent maximum chromium (VI) removal efficiency was found 99.15% from aqueous solutions at pH 1 and an adsorbent dosage of 15 g/L. According to the kinetic investigation, the chromium (VI) removal by the activated carbon followed a pseudo-second-order kinetic with an R\u003csup\u003e2\u003c/sup\u003e of 0.9889. Thermodynamic parameters including ΔG\u003csup\u003eo\u003c/sup\u003e, ΔH\u003csup\u003eo\u003c/sup\u003e, and ΔS\u003csup\u003eo\u003c/sup\u003e revealed that the adsorption of chromium ions on the activated carbon was exothermic and spontaneous. The results prove that chromium (VI) could be removed from industrial wastewater using a very promising, cost-efficient biosorbent made from tannery solid waste. The novelty of the current approach is to utilize the tannery solid waste as an adsorbent to reduce the dangerous chemicals from the wastewater where pollutants will be eliminated by the treatment of waste.\u003c/p\u003e","manuscriptTitle":"Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-02-16 17:28:35","doi":"10.21203/rs.3.rs-3954060/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","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}}],"origin":"","ownerIdentity":"b4e45175-58d3-4de8-991a-7ada55352d5b","owner":[],"postedDate":"February 16th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-08-12T16:31:03+00:00","versionOfRecord":[],"versionCreatedAt":"2024-02-16 17:28:35","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-3954060","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3954060","identity":"rs-3954060","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}