Record details

Title
    Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions
Author
    Kruml, Ondřej
    Müller, Pavel
    Müllerová, Hana
    Vybíhal, Karel
    Zeman, Josef
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Bulletin of Geosciences
Vol./nr.
    Roč. 78, č. 3
Pages
    10
Year
    2003
Thesaurus term
    adsorption
    Cd
    Cu
    isotherm
    leaching column
    sequential extraction analysis
    soil
Keyword
    Adsorption
    Aqueous
    Cadmium
    Conditions
    Copper
    Dynamic
    Sediments
    Solution
    Static
    Types
    Various
Abstract (in english)
   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.
Contributor
    MU Brno, Přírodovědecká fakulta
Contributor code
    MU, PřF
Source format
    R
Import date
    8. 8. 2012