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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/IAA200600902" target="_blank" >IAA200600902: Odstranitelnost organických látek produkovaných fytoplanktonem a jejich vliv na destabililizační a agregační prosesy při úpravě vody</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Technology

ISSN

0959-3330

e-ISSN

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Svazek periodika

32

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1355-1366

Kód UT WoS článku

000296187700005

EID výsledku v databázi Scopus

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