Počet záznamů: 1

A fluidized layer of granular material used for the separation of particulate impurities in drinking water treatment

  1. 1.
    0360312 - UH-J 2012 RIV SK eng J - Článek v odborném periodiku
    Pivokonský, Martin - Bubáková, Petra - Hnaťuková, Petra - Knesl, Bohuslav
    A fluidized layer of granular material used for the separation of particulate impurities in drinking water treatment.
    Journal of Hydrology and Hydromechanics. Roč. 59, č. 2 (2011), s. 95-106 ISSN 0042-790X
    Grant CEP: GA AV ČR IAA200600902
    Výzkumný záměr: CEZ:AV0Z20600510
    Klíčová slova: aggregation * destabilization * fluidized layer * separation * water treatment
    Kód oboru RIV: BK - Mechanika tekutin
    Impakt faktor: 0.340, rok: 2011

    The paper deals with the application of a fluidized layer of granular material (FLGM) for the direct separation of impurities in drinking water treatment. Further, it investigates the effect of operation parameters (grain size, arrangement, velocity gradient, dose of destabilisation reagent and temperature) on the aggregation (α) and separation efficiency (φ) of FLGM. The highest φ was achieved, when the particles entered FLGM immediately after the dosing of the destabilisation reagent, when they had the lowest degree of aggregation. The maximal value of φ was reached at G~250 s-1 The highest value of φ(Al) was achieved at T=5 °C, but the effect of T on φ(TOC) was not very significant. The maximal separation efficiency reached the values φ(Al)=0.81 at the optimal dosage D(Al)=1.55 mg/L and φ(TOC)=0.31 at the dosage D(Al)=2.36 mg/L. The separation of impurities proceeded via their interception on the FLGM grains in a form of solid, water-free shell (ρ=2450 kg/m3).
    Trvalý link: http://hdl.handle.net/11104/0006480
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