Detailed Information on Publication Record
2003
Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions
MÜLLEROVÁ, Hana, Ondřej KRUML, Karel VYBÍHAL, Josef ZEMAN, Pavel MÜLLER et. al.Basic information
Original name
Adsorption of copper and cadmium from aqueous solution by various types of sediments under static and dynamic conditions
Authors
MÜLLEROVÁ, Hana (203 Czech Republic), Ondřej KRUML (203 Czech Republic), Karel VYBÍHAL (203 Czech Republic), Josef ZEMAN (203 Czech Republic, guarantor) and Pavel MÜLLER (203 Czech Republic)
Edition
Bulletin of Geosciences, Praha, Czech geological survey, 2003, 1214-1119
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
Geochemistry
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/00216224:14310/03:00009000
Organization unit
Faculty of Science
Keywords in English
Cu; Cd; adsorption; isotherm; soil; leaching column; sequential extraction analysis
Změněno: 13/7/2005 07:52, doc. RNDr. Josef Zeman, CSc.
Abstract
V originále
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
Links
MSM 143100004, plan (intention) |
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