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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 a 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, roč.~78, č.~3, s.~169-178. ISSN~1214-1119.
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