Experimental study on the effect of ultrasonic waves on flocculation and sedimentation of cohesive sand

Experimental study on the effect of ultrasonic waves on flocculation and sedimentation of cohesive sand | 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 Experimental study on the effect of ultrasonic waves on flocculation and sedimentation of cohesive sand Chen Jian, Zhou Ang, Liu qinqin, Zhang Huijie, Li Yaowei, Chen Xinyang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4604787/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 Sediment flocculation and sedimentation is a common phenomenon in estuarine coastal areas, and its sedimentation characteristics are one of the key contents of sediment transport research. In order to realize the purpose of high turbidity sediment flocculation without affecting the water quality, the authors propose a method to promote the flocculation and sedimentation of viscous sand to realize the separation of water and sand - ultrasonic-assisted flocculation and sedimentation method. Flocculation and sedimentation of viscous sand was studied by ultrasonic waves, and the results showed that: (1) when the concentration of sand content was 29 ~ 79%, the rate of flocculation and sedimentation of viscous sand was V natural > V ultrasonic waves + natural, but compared with natural sedimentation, the turbidity of the water quality was significantly reduced by the flocculation and sedimentation of ultrasonic waves and then natural sedimentation; at the same time, due to the pulsating vortex generated by the ultrasonic waves, the algae in the water body and other At the same time, due to the pulsating vortex generated during the ultrasonic action, other impurities in the water body such as algae floated on the water surface, which had the effect of removing algae in the water; (2) when the concentration of sand content was 41%~52%, the ultrasonic action prompted the viscous sand to produce the best flocculation and sedimentation effect, which corresponded to the clear and muddy interface with the settling height of 3.05 ~ 3.45 cm, and the rate of settling was 0.161 ~ 0.173 cm/min; (3) under the action of ultrasonic action, the water content of water W top > W middle > W middle, and then natural settlement after flocculation and sedimentation were achieved at different times. (3) Under the effect of ultrasonic waves, different time corresponds to different layers of wet substrate with water content W upper > W middle > W lower , and dry substrate with water content W upper < W middle < W lower . The research results can provide research and technical references for the study of flocculation kinetics and the treatment of high turbidity sandy water bodies. Earth and environmental sciences/Environmental sciences Earth and environmental sciences/Limnology cohesive sand flocculation and sedimentation clear and muddy interface ultrasonic wave hydrostatic experiment 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. 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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-4604787","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":326599155,"identity":"5347dfa3-c5b8-4a95-adc9-44b564bb8ccd","order_by":0,"name":"Chen 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sand","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":"cohesive sand, flocculation and sedimentation, clear and muddy interface, ultrasonic wave, hydrostatic experiment","lastPublishedDoi":"10.21203/rs.3.rs-4604787/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4604787/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eSediment flocculation and sedimentation is a common phenomenon in estuarine coastal areas, and its sedimentation characteristics are one of the key contents of sediment transport research. In order to realize the purpose of high turbidity sediment flocculation without affecting the water quality, the authors propose a method to promote the flocculation and sedimentation of viscous sand to realize the separation of water and sand - ultrasonic-assisted flocculation and sedimentation method. Flocculation and sedimentation of viscous sand was studied by ultrasonic waves, and the results showed that: (1) when the concentration of sand content was 29\u0026thinsp;~\u0026thinsp;79%, the rate of flocculation and sedimentation of viscous sand was V natural\u0026thinsp;\u0026gt;\u0026thinsp;V ultrasonic waves\u0026thinsp;+\u0026thinsp;natural, but compared with natural sedimentation, the turbidity of the water quality was significantly reduced by the flocculation and sedimentation of ultrasonic waves and then natural sedimentation; at the same time, due to the pulsating vortex generated by the ultrasonic waves, the algae in the water body and other At the same time, due to the pulsating vortex generated during the ultrasonic action, other impurities in the water body such as algae floated on the water surface, which had the effect of removing algae in the water; (2) when the concentration of sand content was 41%~52%, the ultrasonic action prompted the viscous sand to produce the best flocculation and sedimentation effect, which corresponded to the clear and muddy interface with the settling height of 3.05\u0026thinsp;~\u0026thinsp;3.45 cm, and the rate of settling was 0.161\u0026thinsp;~\u0026thinsp;0.173 cm/min; (3) under the action of ultrasonic action, the water content of water W top\u0026thinsp;\u0026gt;\u0026thinsp;W middle\u0026thinsp;\u0026gt;\u0026thinsp;W middle, and then natural settlement after flocculation and sedimentation were achieved at different times. (3) Under the effect of ultrasonic waves, different time corresponds to different layers of wet substrate with water content W\u003csub\u003eupper\u003c/sub\u003e \u0026gt; W\u003csub\u003emiddle\u003c/sub\u003e \u0026gt; W\u003csub\u003elower\u003c/sub\u003e, and dry substrate with water content W\u003csub\u003eupper\u003c/sub\u003e \u0026lt; W\u003csub\u003emiddle\u003c/sub\u003e \u0026lt; W\u003csub\u003elower\u003c/sub\u003e. The research results can provide research and technical references for the study of flocculation kinetics and the treatment of high turbidity sandy water bodies.\u003c/p\u003e \u003cp\u003e \u003c/p\u003e","manuscriptTitle":"Experimental study on the effect of ultrasonic waves on flocculation and sedimentation of cohesive sand","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-25 07:49:25","doi":"10.21203/rs.3.rs-4604787/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":"c5e515db-04f3-4d05-b030-a173c12fe7d4","owner":[],"postedDate":"July 25th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":34558390,"name":"Earth and environmental sciences/Environmental sciences"},{"id":34558391,"name":"Earth and environmental sciences/Limnology"}],"tags":[],"updatedAt":"2024-09-25T15:08:38+00:00","versionOfRecord":[],"versionCreatedAt":"2024-07-25 07:49:25","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4604787","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4604787","identity":"rs-4604787","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}