The behaviour of 134Cs, 60Co, and 85Sr radionuclides in marine environmental sediment.
Identifieur interne : 000A70 ( Main/Exploration ); précédent : 000A69; suivant : 000A71The behaviour of 134Cs, 60Co, and 85Sr radionuclides in marine environmental sediment.
Auteurs : Nariman H M. Kamel [Égypte]Source :
- TheScientificWorldJournal [ 1537-744X ] ; 2002.
Descripteurs français
- KwdFr :
- MESH :
- Wicri :
- geographic : Égypte.
English descriptors
- KwdEn :
- Absorption, Adsorption, Cations (chemistry), Cesium Radioisotopes (chemistry), Cobalt Radioisotopes (chemistry), Egypt, Geologic Sediments (chemistry), Hydrogen-Ion Concentration, Ions (analysis), Models, Chemical, Seawater, Strontium Radioisotopes (chemistry), Surface Properties, Trace Elements (analysis).
- MESH :
- chemical , analysis : Ions, Trace Elements.
- chemical , chemistry : Cations, Cesium Radioisotopes, Cobalt Radioisotopes, Strontium Radioisotopes.
- geographic : Egypt.
- chemistry : Geologic Sediments.
- Absorption, Adsorption, Hydrogen-Ion Concentration, Models, Chemical, Seawater, Surface Properties.
Abstract
This work describes experimental investigations and modelling studies on the sorption of radionuclides 134Cs, 60Co, and 85Sr by certain marine sediments within Egypt. The chemical composition of the marine sediments was determined. The soluble salts were measured for the sediments and the concentrations of the released cations, Al3+, Fe3+, and Si4+, were measured for the sediment materials in 0.1 M NaClO4 aqueous solution at different hydrogen ion concentrations. The two main factors that control the uptake of the radionuclides onto the sediment are the pH and the exchangeable capacities of the sediment materials. Surface complex model was used to estimate the surface charge densities and the electric surface potential of the marine sediment materials. These two parameters were calculated at the surface capacity sites of the sediment materials. The desorption of the adsorbed cations was determined by means of selective consecutive extraction tests using different chemical reagents including (1) 1 M MgCl2 (pH 7), (2) 1 M ammonium oxalate (pH 3-5), (3) 0.04 M NH2OH,HCl in 25% acetic acid (pH 3-4), (4) H2O2 in 5% HNO3(pH 2-3), and (5) digestion with nitric acid followed by hydrofluoric and perchloric acids (pH 2).
DOI: 10.1100/tsw.2002.290
PubMed: 12806132
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PubMed, to step Corpus: 000076
- to stream PubMed, to step Curation: 000076
- to stream PubMed, to step Checkpoint: 000076
- to stream Ncbi, to step Merge: 000019
- to stream Ncbi, to step Curation: 000019
- to stream Ncbi, to step Checkpoint: 000019
- to stream Main, to step Merge: 000A85
- to stream Main, to step Curation: 000A70
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">The behaviour of 134Cs, 60Co, and 85Sr radionuclides in marine environmental sediment.</title><author><name sortKey="Kamel, Nariman H M" sort="Kamel, Nariman H M" uniqKey="Kamel N" first="Nariman H M" last="Kamel">Nariman H M. Kamel</name><affiliation wicri:level="1"><nlm:affiliation>Radiation Protection Department, Nuclear Research Center, Atomic Energy Authority,P. O. Box 13759, Cairo, Egypt. narimankamel@hotmail.com</nlm:affiliation><country xml:lang="fr">Égypte</country><wicri:regionArea>Radiation Protection Department, Nuclear Research Center, Atomic Energy Authority,P. O. Box 13759, Cairo</wicri:regionArea><wicri:noRegion>Cairo</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2002">2002</date><idno type="RBID">pubmed:12806132</idno><idno type="pmid">12806132</idno><idno type="doi">10.1100/tsw.2002.290</idno><idno type="wicri:Area/PubMed/Corpus">000076</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000076</idno><idno type="wicri:Area/PubMed/Curation">000076</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000076</idno><idno type="wicri:Area/PubMed/Checkpoint">000076</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000076</idno><idno type="wicri:Area/Ncbi/Merge">000019</idno><idno type="wicri:Area/Ncbi/Curation">000019</idno><idno type="wicri:Area/Ncbi/Checkpoint">000019</idno><idno type="wicri:Area/Main/Merge">000A85</idno><idno type="wicri:Area/Main/Curation">000A70</idno><idno type="wicri:Area/Main/Exploration">000A70</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The behaviour of 134Cs, 60Co, and 85Sr radionuclides in marine environmental sediment.</title><author><name sortKey="Kamel, Nariman H M" sort="Kamel, Nariman H M" uniqKey="Kamel N" first="Nariman H M" last="Kamel">Nariman H M. Kamel</name><affiliation wicri:level="1"><nlm:affiliation>Radiation Protection Department, Nuclear Research Center, Atomic Energy Authority,P. O. Box 13759, Cairo, Egypt. narimankamel@hotmail.com</nlm:affiliation><country xml:lang="fr">Égypte</country><wicri:regionArea>Radiation Protection Department, Nuclear Research Center, Atomic Energy Authority,P. O. Box 13759, Cairo</wicri:regionArea><wicri:noRegion>Cairo</wicri:noRegion></affiliation></author></analytic><series><title level="j">TheScientificWorldJournal</title><idno type="eISSN">1537-744X</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption</term><term>Adsorption</term><term>Cations (chemistry)</term><term>Cesium Radioisotopes (chemistry)</term><term>Cobalt Radioisotopes (chemistry)</term><term>Egypt</term><term>Geologic Sediments (chemistry)</term><term>Hydrogen-Ion Concentration</term><term>Ions (analysis)</term><term>Models, Chemical</term><term>Seawater</term><term>Strontium Radioisotopes (chemistry)</term><term>Surface Properties</term><term>Trace Elements (analysis)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Absorption</term><term>Adsorption</term><term>Cations ()</term><term>Concentration en ions d'hydrogène</term><term>Eau de mer</term><term>Ions (analyse)</term><term>Modèles chimiques</term><term>Oligoéléments (analyse)</term><term>Propriétés de surface</term><term>Radio-isotopes du cobalt ()</term><term>Radio-isotopes du césium ()</term><term>Radio-isotopes du strontium ()</term><term>Sédiments géologiques ()</term><term>Égypte</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Ions</term><term>Trace Elements</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Cations</term><term>Cesium Radioisotopes</term><term>Cobalt Radioisotopes</term><term>Strontium Radioisotopes</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Egypt</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Ions</term><term>Oligoéléments</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Geologic Sediments</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Absorption</term><term>Adsorption</term><term>Hydrogen-Ion Concentration</term><term>Models, Chemical</term><term>Seawater</term><term>Surface Properties</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Absorption</term><term>Adsorption</term><term>Cations</term><term>Concentration en ions d'hydrogène</term><term>Eau de mer</term><term>Modèles chimiques</term><term>Propriétés de surface</term><term>Radio-isotopes du cobalt</term><term>Radio-isotopes du césium</term><term>Radio-isotopes du strontium</term><term>Sédiments géologiques</term><term>Égypte</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Égypte</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This work describes experimental investigations and modelling studies on the sorption of radionuclides 134Cs, 60Co, and 85Sr by certain marine sediments within Egypt. The chemical composition of the marine sediments was determined. The soluble salts were measured for the sediments and the concentrations of the released cations, Al3+, Fe3+, and Si4+, were measured for the sediment materials in 0.1 M NaClO4 aqueous solution at different hydrogen ion concentrations. The two main factors that control the uptake of the radionuclides onto the sediment are the pH and the exchangeable capacities of the sediment materials. Surface complex model was used to estimate the surface charge densities and the electric surface potential of the marine sediment materials. These two parameters were calculated at the surface capacity sites of the sediment materials. The desorption of the adsorbed cations was determined by means of selective consecutive extraction tests using different chemical reagents including (1) 1 M MgCl2 (pH 7), (2) 1 M ammonium oxalate (pH 3-5), (3) 0.04 M NH2OH,HCl in 25% acetic acid (pH 3-4), (4) H2O2 in 5% HNO3(pH 2-3), and (5) digestion with nitric acid followed by hydrofluoric and perchloric acids (pH 2).</div></front></TEI><affiliations><list><country><li>Égypte</li></country></list><tree><country name="Égypte"><noRegion><name sortKey="Kamel, Nariman H M" sort="Kamel, Nariman H M" uniqKey="Kamel N" first="Nariman H M" last="Kamel">Nariman H M. Kamel</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/CobaltMaghrebV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000A70 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000A70 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= CobaltMaghrebV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= pubmed:12806132
|texte= The behaviour of 134Cs, 60Co, and 85Sr radionuclides in marine environmental sediment.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:12806132" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a CobaltMaghrebV1
| This area was generated with Dilib version V0.6.32. |  |