Bentonite and its modified derivates as adsorbents of lead
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F11%3A86078299" target="_blank" >RIV/61989100:27350/11:86078299 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/SGEM2011/S20.107" target="_blank" >http://dx.doi.org/10.5593/SGEM2011/S20.107</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/SGEM2011/S20.107" target="_blank" >10.5593/SGEM2011/S20.107</a>
Alternative languages
Result language
angličtina
Original language name
Bentonite and its modified derivates as adsorbents of lead
Original language description
The main objective was to study the removal of lead cations from aqueous solutions by sorption onto bentonite and its modifications. Modification included natrification by NaCl and intercalation by octadecylamine (ODA) in two different weight ratios. Thesorption isotherms were described using the Langmuir and Freundlich models. The adsorptive capacities of the original bentonite increased after the intercalation of ODA. Adsorption of Pb ions, calculated by the Langmuir model, yielded 97.15mg of Pb ionson 1g of bentonite (a sample intercalated by ODA in the weight ratio bentonite:ODA of 1:0.75). This sample was the most suitable for lead adsorption. The natrified sample also achieved better values of uptake capacity than the untreated bentonite, however, the contrast was not so obvious. The mechanisms of lead uptake are ion-exchange adsorption onto untreated bentonite and ion exchange plus Pb2+ octadecylamine complexation on the modified bentonite.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
DJ - Pollution and water control
OECD FORD branch
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Result continuities
Project
<a href="/en/project/1M06007" target="_blank" >1M06007: RESEARCH CENTRE FOR INTEGRATED SYSTEM DEVELOPMENT CONCERNING UTILISATION OF BY-PRODUCTS OF ENERGY RESOURCE MINING AND PROCESSING (RCforDIS)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
11th International Multidisciplinary Scientific GeoConference SGEM 2011 (1.-3. díl)
ISBN
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ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
199-206
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 20, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000307366500028