Spiral-shaped reactor for water disinfection

Handle URI:
http://hdl.handle.net/10754/609579
Title:
Spiral-shaped reactor for water disinfection
Authors:
Soukane, Sofiane; Ait-Djoudi, Fariza; Naceur, Wahib M.; Ghaffour, Noreddine ( 0000-0003-2095-4736 )
Abstract:
Chlorine-based processes are still widely used for water disinfection. The disinfection process for municipal water consumption is usually carried out in large tanks, specifically designed to verify several hydraulic and disinfection criteria. The hydrodynamic behavior of contact tanks of different shapes, each with an approximate total volume of 50,000 m3, was analyzed by solving turbulent momentum transport equations with a computational fluid dynamics code, namely ANSYS fluent. Numerical experiments of a tracer pulse were performed for each design to generate flow through curves and investigate species residence time distribution for different inlet flow rates, ranging from 3 to 12 m3 s−1. A new nature-inspired Conch tank design whose shape follows an Archimedean spiral was then developed. The spiral design is shown to strongly outperform the other tanks’ designs for all the selected plug flow criteria with an enhancement in efficiency, less short circuiting, and an order of magnitude improvement in mixing and dispersion. Moreover, following the intensification philosophy, after 50% reduction in its size, the new design retains its properties and still gives far better results than the classical shapes.
KAUST Department:
Water Desalination & Reuse Research Cntr; Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Spiral-shaped reactor for water disinfection 2016:1 Desalination and Water Treatment
Publisher:
Informa UK Limited
Journal:
Desalination and Water Treatment
Issue Date:
20-Apr-2016
DOI:
10.1080/19443994.2016.1173385
Type:
Article
ISSN:
1944-3994; 1944-3986
Sponsors:
The authors acknowledge software, computation, and US patent application (provisional application No. 61/942,357 filed on 20 February, 2014) support from King Abdullah University of Science and Technology (KAUST), Saudi Arabia.
Additional Links:
http://www.tandfonline.com/doi/full/10.1080/19443994.2016.1173385
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSoukane, Sofianeen
dc.contributor.authorAit-Djoudi, Farizaen
dc.contributor.authorNaceur, Wahib M.en
dc.contributor.authorGhaffour, Noreddineen
dc.date.accessioned2016-05-17T14:07:43Zen
dc.date.available2016-05-17T14:07:43Zen
dc.date.issued2016-04-20en
dc.identifier.citationSpiral-shaped reactor for water disinfection 2016:1 Desalination and Water Treatmenten
dc.identifier.issn1944-3994en
dc.identifier.issn1944-3986en
dc.identifier.doi10.1080/19443994.2016.1173385en
dc.identifier.urihttp://hdl.handle.net/10754/609579en
dc.description.abstractChlorine-based processes are still widely used for water disinfection. The disinfection process for municipal water consumption is usually carried out in large tanks, specifically designed to verify several hydraulic and disinfection criteria. The hydrodynamic behavior of contact tanks of different shapes, each with an approximate total volume of 50,000 m3, was analyzed by solving turbulent momentum transport equations with a computational fluid dynamics code, namely ANSYS fluent. Numerical experiments of a tracer pulse were performed for each design to generate flow through curves and investigate species residence time distribution for different inlet flow rates, ranging from 3 to 12 m3 s−1. A new nature-inspired Conch tank design whose shape follows an Archimedean spiral was then developed. The spiral design is shown to strongly outperform the other tanks’ designs for all the selected plug flow criteria with an enhancement in efficiency, less short circuiting, and an order of magnitude improvement in mixing and dispersion. Moreover, following the intensification philosophy, after 50% reduction in its size, the new design retains its properties and still gives far better results than the classical shapes.en
dc.description.sponsorshipThe authors acknowledge software, computation, and US patent application (provisional application No. 61/942,357 filed on 20 February, 2014) support from King Abdullah University of Science and Technology (KAUST), Saudi Arabia.en
dc.language.isoenen
dc.publisherInforma UK Limiteden
dc.relation.urlhttp://www.tandfonline.com/doi/full/10.1080/19443994.2016.1173385en
dc.rightsThis is an Accepted Manuscript of an article published by Taylor & Francis in Desalination and Water Treatment on 20 Apr 2016, available online: http://wwww.tandfonline.com/10.1080/19443994.2016.1173385.en
dc.subjectChlorination tanksen
dc.subjectWater disinfectionen
dc.subjectCFDen
dc.subjectTank designen
dc.subjectDisinfection criteriaen
dc.titleSpiral-shaped reactor for water disinfectionen
dc.typeArticleen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalDesalination and Water Treatmenten
dc.eprint.versionPost-printen
dc.contributor.institutionFaculty of Technology, Process Engineering Department, University of Blida 1, Blida 09000, Algeriaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorGhaffour, Noreddineen
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