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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003161naa a2200385 4500
001oai:research.chalmers.se:be48e9f0-9d55-4237-a1db-9304fe0d1263
003SwePub
008171008s2012 | |||||||||||000 ||eng|
020 a 9789630845878
024a https://research.chalmers.se/publication/1632022 URI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a kon2 swepub-publicationtype
072 7a ref2 swepub-contenttype
100a Bondelind, Mia,d 1980u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)bondelin
2451 0a Eulerian modelling of the formation and flow of aggregates in dissolved air flotation
264 1c 2012
520 a Dissolved Air Flotation (DAF) is a well-established process within the drinking water treatment community. The process is driven by density differences caused by injection of air bubbles into the main water flow. Particulate matter in the water is flocculated into larger particles (termed flocs). The water, together with flocs, is thereafter mixed with the injected air bubbles. Buoyant aggregates are formed by adhesion of bubbles to the flocs. The aggregates rise to the surface of the unit where they are removed from the water phase. The objective of this paper is to conduct simulations of fluid dynamics of a DAF unit, with a specific aim to capture the formation and flow of aggregates. For that purpose, a model has been developed that explains the mechanisms that lead to creation of aggregates and results in estimation of their size. Details on the implementation of the aggregation model into an Eulerian framework are given in the paper. We show in the paper that the modelling framework can describe the dynamics of flotation by capturing the formation, change in size and movements of the aggregates through the contact zone of a pilot DAF unit as a function of the properties of the flocs.
650 7a TEKNIK OCH TEKNOLOGIERx Samhällsbyggnadsteknikx Vattenteknik0 (SwePub)201072 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Civil Engineeringx Water Engineering0 (SwePub)201072 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Strömningsmekanik och akustik0 (SwePub)203062 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Fluid Mechanics and Acoustics0 (SwePub)203062 hsv//eng
653 a Eulerian model
653 a water treatment
653 a floc
653 a aggregate model
653 a air bubble
653 a Dissolved Air Flotation (DAF)
700a Ström, Henrik,d 1981u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)k00sthe
700a Sasic, Srdjan,d 1968u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)srdjan
700a Bergdahl, Lars,d 1943u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)lasse
710a Chalmers tekniska högskola4 org
773t Proceedings of the conference on Modelling Fluid Flow, Budapest Hungary 2012g 2, s. 650-657q 2<650-657z 9789630845878
8564 8u https://research.chalmers.se/publication/163202

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