The influence of velocity gradient on properties and filterability of suspension formed during water treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F12%3A00376735" target="_blank" >RIV/67985874:_____/12:00376735 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.seppur.2011.09.031" target="_blank" >http://dx.doi.org/10.1016/j.seppur.2011.09.031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.seppur.2011.09.031" target="_blank" >10.1016/j.seppur.2011.09.031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of velocity gradient on properties and filterability of suspension formed during water treatment

Popis výsledku v původním jazyce

This paper deals with the influence of the global velocity gradient G (in the range of 28?307 s-1) on properties of suspension (size and structure) formed during water treatment. Furthermore, it describes the influence of these properties on separation using depth filtration (filtration velocities of 3 and 6 m h-1). The methods of image and fractal analysis were used to determine the aggregate size and structure, respectively. The experiments were conducted in a pilot plant (a mixing tank and a rapid gravity sand filter) with ferric sulphate used as coagulant. The experiments confirmed that with an increasing velocity gradient the aggregate size decreased; the aggregate size distribution narrowed (suspension was more homogenous); the fractal dimensionD2 increased (aggregates were more compact) and the fractal dimension Dpf diminished (aggregates were more regular). The smallest and most compact aggregates (d 60 ?m and D2 = 1.9) formed at G > 200 s-1 displayed the best filterability wi

Název v anglickém jazyce

The influence of velocity gradient on properties and filterability of suspension formed during water treatment

Popis výsledku anglicky

This paper deals with the influence of the global velocity gradient G (in the range of 28?307 s-1) on properties of suspension (size and structure) formed during water treatment. Furthermore, it describes the influence of these properties on separation using depth filtration (filtration velocities of 3 and 6 m h-1). The methods of image and fractal analysis were used to determine the aggregate size and structure, respectively. The experiments were conducted in a pilot plant (a mixing tank and a rapid gravity sand filter) with ferric sulphate used as coagulant. The experiments confirmed that with an increasing velocity gradient the aggregate size decreased; the aggregate size distribution narrowed (suspension was more homogenous); the fractal dimensionD2 increased (aggregates were more compact) and the fractal dimension Dpf diminished (aggregates were more regular). The smallest and most compact aggregates (d 60 ?m and D2 = 1.9) formed at G > 200 s-1 displayed the best filterability wi

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP105%2F11%2F0247" target="_blank" >GAP105/11/0247: Charakterizace organických látek produkovaných sinicemi a řasami a jejich vliv na koagulaci a flokulaci</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Separation and Purification Technology

ISSN

1383-5866

e-ISSN

—

Svazek periodika

92

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

161-167

Kód UT WoS článku

000304584500023

EID výsledku v databázi Scopus

—