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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F03%3A00009000%21RIV08-MSM-14310___
rdf:type
skos:Concept n18:Vysledek
dcterms:description
Themobilityofheavymetalsinsedimentsandsoilsdependsstronglyonphysicalpropertiesandchemicalandmineralogicalcompositionofsuchenvironments.Fivetypesofsampleswithdifferentamountsofcarbonates,organicmatter,chemicalcompositionandvariousgrainsizeswerecho-sen.ExperimentalsorptiondatafrombatchtestswereevaluatedbyLangmuirandFreundlichtypeisotherms,whichprovidedmainsorptioncharacteris-ticsofsedimentsamplesforheavymetals(Cu,Cd).Inordertosimulatenaturalconditionsmorerealistically,severalleachingcolumntestswerealsoper-formed.Thesamplesorptioncapacitiesunderstaticanddynamicconditionswereevaluated.AllchosensamplesbondedCumoreefficientlyandfirmlythanCd.Distilledwaterwashedoutabout6%ofCuand44%ofCdfromHBS2(quartz-dominatedsamplewith74wt%ofsand-sizedfraction)and6%ofCuand9%ofCdfromHBS6(finer-grainedsamplewithsomeamountoforganicmatterandcarbonates).Carbonatesprovedtobecrucialforthemo-bilityofheavymetalsinnaturalsamples.Freemetalswerewashedoutofporesattheverybeginningofthedesorptionexperiments.Then,weaklyad-sorbedmetals(elec Themobilityofheavymetalsinsedimentsandsoilsdependsstronglyonphysicalpropertiesandchemicalandmineralogicalcompositionofsuchenvironments.Fivetypesofsampleswithdifferentamountsofcarbonates,organicmatter,chemicalcompositionandvariousgrainsizeswerecho-sen.ExperimentalsorptiondatafrombatchtestswereevaluatedbyLangmuirandFreundlichtypeisotherms,whichprovidedmainsorptioncharacteris-ticsofsedimentsamplesforheavymetals(Cu,Cd).Inordertosimulatenaturalconditionsmorerealistically,severalleachingcolumntestswerealsoper-formed.Thesamplesorptioncapacitiesunderstaticanddynamicconditionswereevaluated.AllchosensamplesbondedCumoreefficientlyandfirmlythanCd.Distilledwaterwashedoutabout6%ofCuand44%ofCdfromHBS2(quartz-dominatedsamplewith74wt%ofsand-sizedfraction)and6%ofCuand9%ofCdfromHBS6(finer-grainedsamplewithsomeamountoforganicmatterandcarbonates).Carbonatesprovedtobecrucialforthemo-bilityofheavymetalsinnaturalsamples.Freemetalswerewashedoutofporesattheverybeginningofthedesorptionexperiments.Then,weaklyad-sorbedmetals(elec Themobilityofheavymetalsinsedimentsandsoilsdependsstronglyonphysicalpropertiesandchemicalandmineralogicalcompositionofsuchenvironments.Fivetypesofsampleswithdifferentamountsofcarbonates,organicmatter,chemicalcompositionandvariousgrainsizeswerecho-sen.ExperimentalsorptiondatafrombatchtestswereevaluatedbyLangmuirandFreundlichtypeisotherms,whichprovidedmainsorptioncharacteris-ticsofsedimentsamplesforheavymetals(Cu,Cd).Inordertosimulatenaturalconditionsmorerealistically,severalleachingcolumntestswerealsoper-formed.Thesamplesorptioncapacitiesunderstaticanddynamicconditionswereevaluated.AllchosensamplesbondedCumoreefficientlyandfirmlythanCd.Distilledwaterwashedoutabout6%ofCuand44%ofCdfromHBS2(quartz-dominatedsamplewith74wt%ofsand-sizedfraction)and6%ofCuand9%ofCdfromHBS6(finer-grainedsamplewithsomeamountoforganicmatterandcarbonates).Carbonatesprovedtobecrucialforthemo-bilityofheavymetalsinnaturalsamples.Freemetalswerewashedoutofporesattheverybeginningofthedesorptionexperiments.Then,weaklyad-sorbedmetals(elec
dcterms:title
Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions
skos:prefLabel
Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions
skos:notation
RIV/00216224:14310/03:00009000!RIV08-MSM-14310___
n3:strany
169-178
n3:aktivita
n15:Z
n3:aktivity
Z(MSM 143100004)
n3:cisloPeriodika
3
n3:dodaniDat
n5:2008
n3:domaciTvurceVysledku
n10:4371003
n3:druhVysledku
n17:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
597536
n3:idVysledku
RIV/00216224:14310/03:00009000
n3:jazykVysledku
n12:eng
n3:klicovaSlova
Cu; Cd; adsorption; isotherm; soil; leaching column; sequential extraction analysis
n3:klicoveSlovo
n7:soil n7:leaching%20column n7:Cu n7:adsorption n7:isotherm n7:sequential%20extraction%20analysis n7:Cd
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[5FFFEEB20E93]
n3:nazevZdroje
Bulletin of Geosciences
n3:obor
n8:DD
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n5:2003
n3:svazekPeriodika
78
n3:tvurceVysledku
Zeman, Josef Müller, Pavel Müllerová, Hana Kruml, Ondřej Vybíhal, Karel
n3:zamer
n9:MSM%20143100004
s:issn
1214-1119
s:numberOfPages
10
n16:organizacniJednotka
14310