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Träfflista för sökning "WFRF:(Cimbritz Michael) srt2:(2003-2004)"

Sökning: WFRF:(Cimbritz Michael) > (2003-2004)

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1.
  • Cimbritz, Michael, et al. (författare)
  • Particle-visualisation - a tool for determination of rise velocities
  • 2004
  • Ingår i: Water Science and Technology. - 0273-1223. ; 50:12, s. 229-236
  • Tidskriftsartikel (refereegranskat)abstract
    • Particles from post denitrifying Kaldnes Moving Bed(TM) Process were studied using an optical borescope, a visualisation technique that provides opportunities for both qualitative and quantitative studies of the separation mechanism in Dissolved Air Flotation (DAF). Rise rates for particle/bubble aggregates were estimated showing great variability. Two groups of aggregates were distinguished; relatively small floes (<100 mum) with single bubble's attached rising comparatively slowly and large flocs (>100 mum) with several bubbles attached rising very fast. The high rise rates for large aggregates are discussed, possibly explained and suggested as the reason for the effective separation of large particles noticed in previous studies. Removal efficiency of different size categories of particles in DAF were investigated on the basis of particle size analysis indicating increased separation efficiency with increasing particle size.
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2.
  • Cimbritz, Michael, et al. (författare)
  • Separation characteristics in dissolved air flotation - pilot and full-scale demonstration
  • 2003
  • Ingår i: Water Science and Technology. - 0273-1223. ; 48:3, s. 89-96
  • Tidskriftsartikel (refereegranskat)abstract
    • This study presents practical implications for particle separation in Dissolved Air Flotation (DAF). The objectives were to localise where particles are separated from the water phase and to determine what particles, in terms of size, are removed by the DAF-process. Both pilot- and full-scale plants were investigated. Particle sizes were analysed with a light-blocking particle counter and an optical borescope was used for visualisation of particle-bubble aggregates. It was found that particles are preferably separated upstream in the process, i.e. close to the contact zone. Furthermore, separation efficiency for particles increased with increasing particle size.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Jönsson, Lennart (2)
Cimbritz, Michael (2)
la Cour Jansen, Jes (1)
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Lunds universitet (2)
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Engelska (2)
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