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@article{489641,
author = {Müllerová, Hana and Kruml, Ondřej and Vybíhal, Karel and Zeman, Josef and Müller, Pavel},
article_location = {Praha},
article_number = {3},
keywords = {Cu; Cd; adsorption; isotherm; soil; leaching column; sequential extraction analysis},
language = {eng},
issn = {1214-1119},
journal = {Bulletin of Geosciences},
title = {Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions},
url = {http://nts2.cgu.cz/servlet/page?_pageid=245,247,273&_dad=portal30&_schema=PORTAL30&453_TOC_140721.p_subid=71882&453_TOC_140721.p_sub_siteid=33&453_TOC_140721.p_edit=0},
volume = {78},
year = {2003}
}
TY - JOUR
ID - 489641
AU - Müllerová, Hana - Kruml, Ondřej - Vybíhal, Karel - Zeman, Josef - Müller, Pavel
PY - 2003
TI - Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions
JF - Bulletin of Geosciences
VL - 78
IS - 3
SP - 169-178
EP - 169-178
PB - Czech geological survey
SN - 12141119
KW - Cu
KW - Cd
KW - adsorption
KW - isotherm
KW - soil
KW - leaching column
KW - sequential extraction analysis
UR - http://nts2.cgu.cz/servlet/page?_pageid=245,247,273&_dad=portal30&_schema=PORTAL30&453_TOC_140721.p_subid=71882&453_TOC_140721.p_sub_siteid=33&453_TOC_140721.p_edit=0
N2 - 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(electricdoublelayer)werewashedoutandfinally,alowstationarymetalconcentrationwasestablished.Suchbehaviourshouldresultinaslow release of small amounts of a heavy metal, which should therefore not represent significant danger to the environment
ER -
MÜLLEROVÁ, Hana, Ondřej KRUML, Karel VYBÍHAL, Josef ZEMAN and Pavel MÜLLER. Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions. \textit{Bulletin of Geosciences}. Praha: Czech geological survey, 2003, vol.~78, No~3, p.~169-178. ISSN~1214-1119.
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