Utilization of the Pilot-Scale Multistage Extractor for Removal of Zinc Ions with Central Composite Design Optimization; Case Study: Mass Transfer Rates

Utilization of the Pilot-Scale Multistage Extractor for Removal of Zinc Ions with Central Composite Design Optimization; Case Study: Mass Transfer Rates | 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 Utilization of the Pilot-Scale Multistage Extractor for Removal of Zinc Ions with Central Composite Design Optimization; Case Study: Mass Transfer Rates Mehdi Asadollahzadeh, Rezvan Torkaman This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4808327/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 this work, the removal of zinc ions from aqueous solution by using a multistage extractor was studied. This investigation discusses the significance of the pilot-scale column, and it provides a brief overview of the potential of mass transfer rates for the extraction stage of Zn(II) with D2EHPA extractant. In the first step, the central composite design approach was performed to analyze the extraction behavior by the mass transfer coefficients. The optimization study showed that within the design variables, the significant parameter was the rate of agitation. The higher mass transfer coefficient increased the extraction rate due to more complex formation from aqueous to the organic phase. The optimum conditions were obtained as the rotation speed of 3.58 s − 1 , aqueous feed velocity of 0.75 mm.s − 1 , organic feed velocity of 0.89 mm.s − 1 . In the second stage, the experimental data were examined for the description of mass transfer behavior with the previous correlations. The results showed that reaction condition is a significant factor in the variation of mass transfer coefficients. The obtained data could be referred to in future improvement and applications of a multistage extractor for wastewater treatment and the removal of zinc ions. Physical sciences/Engineering/Chemical engineering Earth and environmental sciences/Environmental sciences Zinc Extraction Response surface Methodology Multistage Extractor Mass Transfer Rates 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-4808327","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":343605448,"identity":"f61741a3-1329-440c-9e73-d9527eebe641","order_by":0,"name":"Mehdi Asadollahzadeh","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABCklEQVRIiWNgGAWjYLACHgYLGQYJMOOAHEjgAFiYGa8WCR6YFmPStSQ2EHKTbvvxhx/eVEjw8M9uBzHupPe3Nx88wFBxz66BnfcBNi1mZ3KMJeeckeCRuHMgGch4ljvjzLGEAwxnipMbmNkNsGo5kMMgzdsGdNiNhANAxuHchhs5BgcY2xKSGZjZsDrM7Pzzx79BWuRvJDb/5v13OF3+/hsCWm4kmIFtMbiRzCbN23A4weAGD1iLHW4tb8wsQX4xvJHGZjnn2GHDjWfSEg4knElIYMPpsPTHN95U2MjJ3QAxag7Lyx0/fPjDh4oEe37+Y1i14AAJDAyJbaRoAAN7knWMglEwCkbBcAUA62RkU5pVnYcAAAAASUVORK5CYII=","orcid":"","institution":"Nuclear Fuel Research School, Nuclear Science and Technology Research Institute","correspondingAuthor":true,"prefix":"","firstName":"Mehdi","middleName":"","lastName":"Asadollahzadeh","suffix":""},{"id":343605449,"identity":"2b12fc1d-cf78-4721-ac78-e354130a4234","order_by":1,"name":"Rezvan Torkaman","email":"","orcid":"","institution":"Nuclear Fuel Research School, Nuclear Science and Technology Research Institute","correspondingAuthor":false,"prefix":"","firstName":"Rezvan","middleName":"","lastName":"Torkaman","suffix":""}],"badges":[],"createdAt":"2024-07-26 13:16:35","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4808327/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4808327/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":66303824,"identity":"ee8b12eb-11d2-4700-8881-472dd5868721","added_by":"auto","created_at":"2024-10-10 06:54:54","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1630632,"visible":true,"origin":"","legend":"","description":"","filename":"ManuscriptZincK.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4808327/v1_covered_039cc9b2-ff62-457d-9eb4-171d9e037226.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Utilization of the Pilot-Scale Multistage Extractor for Removal of Zinc Ions with Central Composite Design Optimization; Case Study: Mass Transfer Rates","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":"Zinc Extraction, Response surface Methodology, Multistage Extractor, Mass Transfer Rates","lastPublishedDoi":"10.21203/rs.3.rs-4808327/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4808327/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this work, the removal of zinc ions from aqueous solution by using a multistage extractor was studied. This investigation discusses the significance of the pilot-scale column, and it provides a brief overview of the potential of mass transfer rates for the extraction stage of Zn(II) with D2EHPA extractant. In the first step, the central composite design approach was performed to analyze the extraction behavior by the mass transfer coefficients. The optimization study showed that within the design variables, the significant parameter was the rate of agitation. The higher mass transfer coefficient increased the extraction rate due to more complex formation from aqueous to the organic phase. The optimum conditions were obtained as the rotation speed of 3.58 s\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e, aqueous feed velocity of 0.75 mm.s\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e, organic feed velocity of 0.89 mm.s\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e. In the second stage, the experimental data were examined for the description of mass transfer behavior with the previous correlations. The results showed that reaction condition is a significant factor in the variation of mass transfer coefficients. The obtained data could be referred to in future improvement and applications of a multistage extractor for wastewater treatment and the removal of zinc ions.\u003c/p\u003e","manuscriptTitle":"Utilization of the Pilot-Scale Multistage Extractor for Removal of Zinc Ions with Central Composite Design Optimization; Case Study: Mass Transfer Rates","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-08-23 04:40:50","doi":"10.21203/rs.3.rs-4808327/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":"6c2c3855-a107-4223-87c0-7be4ba761ea7","owner":[],"postedDate":"August 23rd, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":36408495,"name":"Physical sciences/Engineering/Chemical engineering"},{"id":36408496,"name":"Earth and environmental sciences/Environmental sciences"}],"tags":[],"updatedAt":"2024-10-10T06:54:44+00:00","versionOfRecord":[],"versionCreatedAt":"2024-08-23 04:40:50","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4808327","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4808327","identity":"rs-4808327","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}