This HTML5 document contains 51 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n20http://localhost/temp/predkladatel/
n22http://linked.opendata.cz/resource/domain/vavai/projekt/
n19http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n10http://linked.opendata.cz/resource/domain/vavai/subjekt/
n9http://linked.opendata.cz/ontology/domain/vavai/
n14http://linked.opendata.cz/resource/domain/vavai/zamer/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n5http://linked.opendata.cz/ontology/domain/vavai/riv/
rdfshttp://www.w3.org/2000/01/rdf-schema#
n11http://bibframe.org/vocab/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n15http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n8http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n17http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n13http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n16http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n12http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n21http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F46747885%3A24220%2F13%3A%230002824%21RIV14-MPO-24220___/
n18http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F46747885%3A24220%2F13%3A%230002824%21RIV14-MPO-24220___
rdf:type
skos:Concept n9:Vysledek
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0169131713001713
dcterms:description
Knowledge of pore water composition is crucial information in research of long-term stability of bentonite and is also crucial for any stability predictions based on geochemical modeling. This paper reports validation results of two frequently used extraction methods — centrifugation and leaching. Three types of bentonite materials were used in our study. The first one was the Czech raw bentonite from the Rokle deposit. The second type of bentonite was “Mock-Up-Cz”, which is a mixture of bentonite material from the Rokle deposit with finely ground quartz and graphite powder. The third type of material was the FEBEX bentonite obtained from the Cortijo de Archidona deposit. All the bentonite samples were placed into pressure vessels and interacted with natural water during a one-year experiment. Free water, obtained during these interactions, was used as a comparative pore water composition for both of the extraction methods. The high water content in saturated bentonite, reaching about 50 m%, allowed the use of both methods. Concentrations of Mg2 +, Ca2 +, K+ and Na+ in water were determined. Centrifugation could be generally considered as a more suitable method because of the smaller differences between free water composition and concentrations obtained from extracted pore water compared to the leaching method. However, actual differences will depend on the type of bentonite and on the composition of the water media. In some cases, the leaching method yields better results. Leaching usually leads to higher concentrations of alkali metals and lower concentrations of alkaline earth metals. This indicates that bentonite substrates are sensitive to the change of external conditions and quickly interact with the water media. Knowledge of pore water composition is crucial information in research of long-term stability of bentonite and is also crucial for any stability predictions based on geochemical modeling. This paper reports validation results of two frequently used extraction methods — centrifugation and leaching. Three types of bentonite materials were used in our study. The first one was the Czech raw bentonite from the Rokle deposit. The second type of bentonite was “Mock-Up-Cz”, which is a mixture of bentonite material from the Rokle deposit with finely ground quartz and graphite powder. The third type of material was the FEBEX bentonite obtained from the Cortijo de Archidona deposit. All the bentonite samples were placed into pressure vessels and interacted with natural water during a one-year experiment. Free water, obtained during these interactions, was used as a comparative pore water composition for both of the extraction methods. The high water content in saturated bentonite, reaching about 50 m%, allowed the use of both methods. Concentrations of Mg2 +, Ca2 +, K+ and Na+ in water were determined. Centrifugation could be generally considered as a more suitable method because of the smaller differences between free water composition and concentrations obtained from extracted pore water compared to the leaching method. However, actual differences will depend on the type of bentonite and on the composition of the water media. In some cases, the leaching method yields better results. Leaching usually leads to higher concentrations of alkali metals and lower concentrations of alkaline earth metals. This indicates that bentonite substrates are sensitive to the change of external conditions and quickly interact with the water media.
dcterms:title
Determination of pore water composition during long term interaction of bentonite substrates with water media: Comparative study Determination of pore water composition during long term interaction of bentonite substrates with water media: Comparative study
skos:prefLabel
Determination of pore water composition during long term interaction of bentonite substrates with water media: Comparative study Determination of pore water composition during long term interaction of bentonite substrates with water media: Comparative study
skos:notation
RIV/46747885:24220/13:#0002824!RIV14-MPO-24220___
n9:predkladatel
n10:orjk%3A24220
n5:aktivita
n13:Z n13:S n13:P n13:I
n5:aktivity
I, P(FR-TI1/362), S, Z(MSM0021622412)
n5:cisloPeriodika
August 2013
n5:dodaniDat
n18:2014
n5:domaciTvurceVysledku
n19:4662210
n5:druhVysledku
n16:J
n5:duvernostUdaju
n8:S
n5:entitaPredkladatele
n21:predkladatel
n5:idSjednocenehoVysledku
68916
n5:idVysledku
RIV/46747885:24220/13:#0002824
n5:jazykVysledku
n17:eng
n5:klicovaSlova
Bentonite; Pore water extraction; Mock-Up-Cz experiment; Centrifugation; Leaching
n5:klicoveSlovo
n15:Leaching n15:Centrifugation n15:Pore%20water%20extraction n15:Mock-Up-Cz%20experiment n15:Bentonite
n5:kodStatuVydavatele
NL - Nizozemsko
n5:kontrolniKodProRIV
[5A18FA5587FB]
n5:nazevZdroje
Applied Clay Science
n5:obor
n12:DD
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
5
n5:projekt
n22:FR-TI1%2F362
n5:rokUplatneniVysledku
n18:2013
n5:svazekPeriodika
80-81
n5:tvurceVysledku
Kuchovský, Tomáš Vašíček, Radek Hanuláková, Dana Zeman, Josef Přikryl, Richard
n5:wos
000325039100010
n5:zamer
n14:MSM0021622412
s:issn
0169-1317
s:numberOfPages
7
n11:doi
10.1016/j.clay.2013.06.006
n20:organizacniJednotka
24220