The effect of global velocity gradient on the character and filterability of aggregates formed during the coagulation/flocculation process

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F11%3A00360835" target="_blank" >RIV/67985874:_____/11:00360835 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/09593330.2010.536786" target="_blank" >http://dx.doi.org/10.1080/09593330.2010.536786</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/09593330.2010.536786" target="_blank" >10.1080/09593330.2010.536786</a>

Result language
angličtina
Original language name
The effect of global velocity gradient on the character and filterability of aggregates formed during the coagulation/flocculation process
Original language description
Paper describes the influence of the global velocity gradient G on the properties of aggregates formed during the coagulation/flocculation process. The methods of image and fractal analysis were used to determine aggregate size and structure, respectively. The influence of these aggregate properties on separation using depth filtration is also described. The suspension was formed in a flow mixing tank with global velocity gradients ranging from 28.4?307.2 s1 and ferric sulphate used as a coagulant. Predictably, it was shown that the aggregate size decreased with increasing global velocity gradient G. Furthermore it was demonstrated that, with increasing G, the aggregates became more compact and regular and the suspension became more homogeneous in size. The aggregates with the smallest diameter and highest fractal dimension displayed the best filterability, i.e. penetrated throughout the full depth of the filter bed and generated a minimum pressure drop.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
—

Project
<a href="/en/project/IAA200600902" target="_blank" >IAA200600902: Removal of organic matter produced by fytoplankton (AOM) and their influence on destabilisation and aggregation processes during water purification</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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