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

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: The influence of velocity gradient on properties and filterability of suspension formed during water treatment Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 dimension D2 increased (aggregates were more compact) and the fractal dimension Dpf diminished (aggregates were more regular). The smallest and most compact aggregates (d 60 μm and D2 = 1.9) formed at G > 200 s-1 displayed the best filterability with the time of filtration up to 78 h. On the contrary, the filtration of large and porous aggregates formed at G 30 s-1 lasted only about 30 h. 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 dimension D2 increased (aggregates were more compact) and the fractal dimension Dpf diminished (aggregates were more regular). The smallest and most compact aggregates (d 60 μm and D2 = 1.9) formed at G > 200 s-1 displayed the best filterability with the time of filtration up to 78 h. On the contrary, the filtration of large and porous aggregates formed at G 30 s-1 lasted only about 30 h. (en)
Title	The influence of velocity gradient on properties and filterability of suspension formed during water treatment The influence of velocity gradient on properties and filterability of suspension formed during water treatment (en)
skos:prefLabel	The influence of velocity gradient on properties and filterability of suspension formed during water treatment The influence of velocity gradient on properties and filterability of suspension formed during water treatment (en)
skos:notation	RIV/67985874:_____/12:00376735!RIV13-AV0-67985874
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP105/11/0247), Z(AV0Z20600510)
http://linked.open...iv/cisloPeriodika	May
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Bubáková, Petra Pivokonský, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	141685
http://linked.open...ai/riv/idVysledku	RIV/67985874:_____/12:00376735
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	aggregation; fractal dimension; filtration; particle size distribution; velocity gradient (en)
http://linked.open.../riv/klicoveSlovo	particle size distribution filtration velocity gradient aggregation fractal dimension
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[26672DCBCF2D]
http://linked.open...i/riv/nazevZdroje	Separation and Purification Technology
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Characterisation of algal organic matter and its effect on coagulation/flocculation process
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	92
http://linked.open...iv/tvurceVysledku	Bubáková, Petra Pivokonský, Martin
http://linked.open...ain/vavai/riv/wos	000304584500023
http://linked.open...n/vavai/riv/zamer	Dynamics of Fluid Systems and Transformation Processes in Hydrosphere
issn	1383-5866
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.seppur.2011.09.031

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software