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Influence of velocity gradient on optimisation of the aggregation process and physical properties of formed aggregates. Part 1. Inline high density suspension (IHDS) aggregation process
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SYSNO ASEP 0360313 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Influence of velocity gradient on optimisation of the aggregation process and physical properties of formed aggregates. Part 1. Inline high density suspension (IHDS) aggregation process Author(s) Polášek, Pavel (UH-J) Source Title Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X
Roč. 59, č. 2 (2011), s. 107-117Number of pages 11 s. Language eng - English Country SK - Slovakia Keywords flocculation optimum ; inline high density suspension (IHDS) formation process ; properties of aggregates ; intensity of agitation ; velocity gradient G Subject RIV BK - Fluid Dynamics R&D Projects GA103/07/1016 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000294700300004 DOI 10.2478/v10098-011-0009-5 Annotation This paper deals with optimisation and acceleration of the clarification process. It was established that both these objectives are closely inter-related and can be accomplished by the formation of aggregates with a high agitation intensity until the flocculation optimum is reached. This is a new method of formation of aggregates which is called the Inline High Density Suspension (IHDS) formation process. Further, under the IHDS process the aggregates are formed with a single root-mean-square velocity gradient G > 50 s-1. The resultant aggregates formed by the IHDS process are very compact, dense and homogeneous in their size, shape, volume and inner structure. Last but not least, the IHDS process applied to the HR-CSAV type sludge blanket clarifier facilitated its high attainable upflow velocity above of 25 m h-1. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2012
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