About: Impact of hydrodynamic conditions on gypsum growth

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The interaction of gypsum (CaS04.2H20) with water is controlled by mixed transport-surface reaction kinetics. Therefore, the rate of gypsum growth/precipitation should depend on hydrodynamic conditions. Gypsum nucleation and crystal growth were studied in a batch reactor under ambient conditions in dependence on varying hydrodynamic conditions (advection of solution). The statistically significant dependence (R2 = 0.875), u = 4E-7v+0.0007 (where u is crystal growth rate in mol/min and v is stirring rate in rpm) was found for gypsum growth rate and stirring rate of solution. In contrast, induction times at gypsum nucleation were slightly increasing, i.e., nucleation rates decreased with increasing stirring rate. However, no statistically significant dependence (R2 = 0.115) was found. The interaction of gypsum (CaS04.2H20) with water is controlled by mixed transport-surface reaction kinetics. Therefore, the rate of gypsum growth/precipitation should depend on hydrodynamic conditions. Gypsum nucleation and crystal growth were studied in a batch reactor under ambient conditions in dependence on varying hydrodynamic conditions (advection of solution). The statistically significant dependence (R2 = 0.875), u = 4E-7v+0.0007 (where u is crystal growth rate in mol/min and v is stirring rate in rpm) was found for gypsum growth rate and stirring rate of solution. In contrast, induction times at gypsum nucleation were slightly increasing, i.e., nucleation rates decreased with increasing stirring rate. However, no statistically significant dependence (R2 = 0.115) was found. (en) The interaction of gypsum (CaS04.2H20) with water is controlled by mixed transport-surface reaction kinetics. Therefore, the rate of gypsum growth/precipitation should depend on hydrodynamic conditions. Gypsum nucleation and crystal growth were studied in a batch reactor under ambient conditions in dependence on varying hydrodynamic conditions (advection of solution). The statistically significant dependence (R2 = 0.875), u = 4E-7*v+0.0007 (where u is crystal growth rate in mol/min and v is stirring rate in rpm) was found for gypsum growth rate and stirring rate of solution. In contrast, induction times at gypsum nucleation were slightly increasing, i.e., nucleation rates decreased with increasing stirring rate. However, no statistically significant dependence (R2 = 0.115) was found. (cs)
Title	Impact of hydrodynamic conditions on gypsum growth (en) Vliv hydrodynamických podmínek na růst sádrovce Vliv hydrodynamických podmínek na růst sádrovce (cs)
skos:prefLabel	Impact of hydrodynamic conditions on gypsum growth (en) Vliv hydrodynamických podmínek na růst sádrovce Vliv hydrodynamických podmínek na růst sádrovce (cs)
skos:notation	RIV/00216224:14310/11:00054674!RIV12-MSM-14310___
http://linked.open...avai/riv/aktivita	I Z
http://linked.open...avai/riv/aktivity	I, Z(MSM0021622412)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Faimon, Jiří Pospíšilová, Jarmila
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	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	238859
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/11:00054674
http://linked.open...riv/jazykVysledku	cze - čeština
http://linked.open.../riv/klicovaSlova	gypsum; crystal growth; induction time; hydrodynamic conditions; nucleation; rate (en)
http://linked.open.../riv/klicoveSlovo	hydrodynamic conditions crystal growth gypsum nucleation rate induction time
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[325C9544C9A8]
http://linked.open...i/riv/nazevZdroje	Geologické výzkumy na Moravě a ve Slezsku
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	XVIII/2011
http://linked.open...iv/tvurceVysledku	Faimon, Jiří Pospíšilová, Jarmila
http://linked.open...n/vavai/riv/zamer	Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)
issn	1212-6209
number of pages	2 (xsd:int)
http://localhost/t...ganizacniJednotka	14310

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