Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate
Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 ura...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Mehta, Vrajesh S [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2016 |
|---|
| Schlagwörter: |
|---|
| Übergeordnetes Werk: |
Enthalten in: Environmental science & technology - Washington, DC : ACS Publ., 1967, 50(2016), 6, Seite 3128 |
|---|---|
| Übergeordnetes Werk: |
volume:50 ; year:2016 ; number:6 ; pages:3128 |
| Links: |
|---|
| Katalog-ID: |
OLC1972871897 |
|---|
| LEADER | 01000caa a2200265 4500 | ||
|---|---|---|---|
| 001 | OLC1972871897 | ||
| 003 | DE-627 | ||
| 005 | 20230714183721.0 | ||
| 007 | tu | ||
| 008 | 160427s2016 xx ||||| 00| ||eng c | ||
| 028 | 5 | 2 | |a PQ20160430 |
| 035 | |a (DE-627)OLC1972871897 | ||
| 035 | |a (DE-599)GBVOLC1972871897 | ||
| 035 | |a (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 | ||
| 035 | |a (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 050 |a 333.7 |q DNB |
| 100 | 1 | |a Mehta, Vrajesh S |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate |
| 264 | 1 | |c 2016 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 520 | |a Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. | ||
| 650 | 4 | |a Adsorption | |
| 650 | 4 | |a Precipitation | |
| 650 | 4 | |a Calcium | |
| 650 | 4 | |a Fluorescence | |
| 650 | 4 | |a Thermodynamics | |
| 650 | 4 | |a Uranium | |
| 700 | 1 | |a Maillot, Fabien |4 oth | |
| 700 | 1 | |a Wang, Zheming |4 oth | |
| 700 | 1 | |a Catalano, Jeffrey G |4 oth | |
| 700 | 1 | |a Giammar, Daniel E |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |t Environmental science & technology |d Washington, DC : ACS Publ., 1967 |g 50(2016), 6, Seite 3128 |w (DE-627)129852457 |w (DE-600)280653-8 |w (DE-576)01515274X |x 0013-936X |7 nnns |
| 773 | 1 | 8 | |g volume:50 |g year:2016 |g number:6 |g pages:3128 |
| 856 | 4 | 2 | |u http://www.ncbi.nlm.nih.gov/pubmed/26934085 |
| 856 | 4 | 2 | |u http://search.proquest.com/docview/1777505699 |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a SYSFLAG_A | ||
| 912 | |a GBV_OLC | ||
| 912 | |a SSG-OLC-UMW | ||
| 912 | |a SSG-OLC-TEC | ||
| 912 | |a SSG-OLC-CHE | ||
| 912 | |a GBV_ILN_70 | ||
| 912 | |a GBV_ILN_252 | ||
| 912 | |a GBV_ILN_2006 | ||
| 912 | |a GBV_ILN_4323 | ||
| 951 | |a AR | ||
| 952 | |d 50 |j 2016 |e 6 |h 3128 | ||
| author_variant |
v s m vs vsm |
|---|---|
| matchkey_str |
article:0013936X:2016----::fetfecinahaotexetnmcaimfrnuvimblzt |
| hierarchy_sort_str |
2016 |
| publishDate |
2016 |
| allfields |
PQ20160430 (DE-627)OLC1972871897 (DE-599)GBVOLC1972871897 (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur DE-627 ger DE-627 rakwb eng 050 333.7 DNB Mehta, Vrajesh S verfasserin aut Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium Maillot, Fabien oth Wang, Zheming oth Catalano, Jeffrey G oth Giammar, Daniel E oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 50(2016), 6, Seite 3128 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:50 year:2016 number:6 pages:3128 http://www.ncbi.nlm.nih.gov/pubmed/26934085 http://search.proquest.com/docview/1777505699 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 50 2016 6 3128 |
| spelling |
PQ20160430 (DE-627)OLC1972871897 (DE-599)GBVOLC1972871897 (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur DE-627 ger DE-627 rakwb eng 050 333.7 DNB Mehta, Vrajesh S verfasserin aut Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium Maillot, Fabien oth Wang, Zheming oth Catalano, Jeffrey G oth Giammar, Daniel E oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 50(2016), 6, Seite 3128 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:50 year:2016 number:6 pages:3128 http://www.ncbi.nlm.nih.gov/pubmed/26934085 http://search.proquest.com/docview/1777505699 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 50 2016 6 3128 |
| allfields_unstemmed |
PQ20160430 (DE-627)OLC1972871897 (DE-599)GBVOLC1972871897 (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur DE-627 ger DE-627 rakwb eng 050 333.7 DNB Mehta, Vrajesh S verfasserin aut Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium Maillot, Fabien oth Wang, Zheming oth Catalano, Jeffrey G oth Giammar, Daniel E oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 50(2016), 6, Seite 3128 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:50 year:2016 number:6 pages:3128 http://www.ncbi.nlm.nih.gov/pubmed/26934085 http://search.proquest.com/docview/1777505699 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 50 2016 6 3128 |
| allfieldsGer |
PQ20160430 (DE-627)OLC1972871897 (DE-599)GBVOLC1972871897 (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur DE-627 ger DE-627 rakwb eng 050 333.7 DNB Mehta, Vrajesh S verfasserin aut Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium Maillot, Fabien oth Wang, Zheming oth Catalano, Jeffrey G oth Giammar, Daniel E oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 50(2016), 6, Seite 3128 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:50 year:2016 number:6 pages:3128 http://www.ncbi.nlm.nih.gov/pubmed/26934085 http://search.proquest.com/docview/1777505699 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 50 2016 6 3128 |
| allfieldsSound |
PQ20160430 (DE-627)OLC1972871897 (DE-599)GBVOLC1972871897 (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur DE-627 ger DE-627 rakwb eng 050 333.7 DNB Mehta, Vrajesh S verfasserin aut Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium Maillot, Fabien oth Wang, Zheming oth Catalano, Jeffrey G oth Giammar, Daniel E oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 50(2016), 6, Seite 3128 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:50 year:2016 number:6 pages:3128 http://www.ncbi.nlm.nih.gov/pubmed/26934085 http://search.proquest.com/docview/1777505699 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 50 2016 6 3128 |
| language |
English |
| source |
Enthalten in Environmental science & technology 50(2016), 6, Seite 3128 volume:50 year:2016 number:6 pages:3128 |
| sourceStr |
Enthalten in Environmental science & technology 50(2016), 6, Seite 3128 volume:50 year:2016 number:6 pages:3128 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium |
| dewey-raw |
050 |
| isfreeaccess_bool |
false |
| container_title |
Environmental science & technology |
| authorswithroles_txt_mv |
Mehta, Vrajesh S @@aut@@ Maillot, Fabien @@oth@@ Wang, Zheming @@oth@@ Catalano, Jeffrey G @@oth@@ Giammar, Daniel E @@oth@@ |
| publishDateDaySort_date |
2016-01-01T00:00:00Z |
| hierarchy_top_id |
129852457 |
| dewey-sort |
250 |
| id |
OLC1972871897 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC1972871897</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230714183721.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">160427s2016 xx ||||| 00| ||eng c</controlfield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20160430</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC1972871897</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC1972871897</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">050</subfield><subfield code="a">333.7</subfield><subfield code="q">DNB</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Mehta, Vrajesh S</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2016</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Adsorption</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Precipitation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Calcium</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fluorescence</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Thermodynamics</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Uranium</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Maillot, Fabien</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Zheming</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Catalano, Jeffrey G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Giammar, Daniel E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Environmental science & technology</subfield><subfield code="d">Washington, DC : ACS Publ., 1967</subfield><subfield code="g">50(2016), 6, Seite 3128</subfield><subfield code="w">(DE-627)129852457</subfield><subfield code="w">(DE-600)280653-8</subfield><subfield code="w">(DE-576)01515274X</subfield><subfield code="x">0013-936X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:50</subfield><subfield code="g">year:2016</subfield><subfield code="g">number:6</subfield><subfield code="g">pages:3128</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://www.ncbi.nlm.nih.gov/pubmed/26934085</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://search.proquest.com/docview/1777505699</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-UMW</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-CHE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_252</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2006</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">50</subfield><subfield code="j">2016</subfield><subfield code="e">6</subfield><subfield code="h">3128</subfield></datafield></record></collection>
|
| author |
Mehta, Vrajesh S |
| spellingShingle |
Mehta, Vrajesh S ddc 050 misc Adsorption misc Precipitation misc Calcium misc Fluorescence misc Thermodynamics misc Uranium Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate |
| authorStr |
Mehta, Vrajesh S |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)129852457 |
| format |
Article |
| dewey-ones |
050 - General serial publications 333 - Economics of land & energy |
| delete_txt_mv |
keep |
| author_role |
aut |
| collection |
OLC |
| remote_str |
false |
| illustrated |
Not Illustrated |
| issn |
0013-936X |
| topic_title |
050 333.7 DNB Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate Adsorption Precipitation Calcium Fluorescence Thermodynamics Uranium |
| topic |
ddc 050 misc Adsorption misc Precipitation misc Calcium misc Fluorescence misc Thermodynamics misc Uranium |
| topic_unstemmed |
ddc 050 misc Adsorption misc Precipitation misc Calcium misc Fluorescence misc Thermodynamics misc Uranium |
| topic_browse |
ddc 050 misc Adsorption misc Precipitation misc Calcium misc Fluorescence misc Thermodynamics misc Uranium |
| format_facet |
Aufsätze Gedruckte Aufsätze |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
nc |
| author2_variant |
f m fm z w zw j g c jg jgc d e g de deg |
| hierarchy_parent_title |
Environmental science & technology |
| hierarchy_parent_id |
129852457 |
| dewey-tens |
050 - Magazines, journals & serials 330 - Economics |
| hierarchy_top_title |
Environmental science & technology |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X |
| title |
Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate |
| ctrlnum |
(DE-627)OLC1972871897 (DE-599)GBVOLC1972871897 (PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60 (KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur |
| title_full |
Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate |
| author_sort |
Mehta, Vrajesh S |
| journal |
Environmental science & technology |
| journalStr |
Environmental science & technology |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
000 - Computer science, information & general works 300 - Social sciences |
| recordtype |
marc |
| publishDateSort |
2016 |
| contenttype_str_mv |
txt |
| container_start_page |
3128 |
| author_browse |
Mehta, Vrajesh S |
| container_volume |
50 |
| class |
050 333.7 DNB |
| format_se |
Aufsätze |
| author-letter |
Mehta, Vrajesh S |
| dewey-full |
050 333.7 |
| title_sort |
effect of reaction pathway on the extent and mechanism of uranium(vi) immobilization with calcium and phosphate |
| title_auth |
Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate |
| abstract |
Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. |
| abstractGer |
Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. |
| abstract_unstemmed |
Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases. |
| collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 |
| container_issue |
6 |
| title_short |
Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate |
| url |
http://www.ncbi.nlm.nih.gov/pubmed/26934085 http://search.proquest.com/docview/1777505699 |
| remote_bool |
false |
| author2 |
Maillot, Fabien Wang, Zheming Catalano, Jeffrey G Giammar, Daniel E |
| author2Str |
Maillot, Fabien Wang, Zheming Catalano, Jeffrey G Giammar, Daniel E |
| ppnlink |
129852457 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth oth oth |
| up_date |
2024-07-04T00:53:17.323Z |
| _version_ |
1803607759729459200 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC1972871897</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230714183721.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">160427s2016 xx ||||| 00| ||eng c</controlfield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20160430</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC1972871897</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC1972871897</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)p805-76a7f59dd201215218dcd93eb0033317df1d98feac6e5abd54383109e3d028a60</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0072627320160000050000603128effectofreactionpathwayontheextentandmechanismofur</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">050</subfield><subfield code="a">333.7</subfield><subfield code="q">DNB</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Mehta, Vrajesh S</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Effect of Reaction Pathway on the Extent and Mechanism of Uranium(VI) Immobilization with Calcium and Phosphate</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2016</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Phosphate addition to subsurface environments contaminated with uranium can be used as an in situ remediation approach. Batch experiments were conducted to evaluate the dependence of the extent and mechanism of uranium uptake on the pathway for reaction with calcium phosphates. At pH 4.0 and 6.0 uranium uptake from solution occurred via autunite (Ca(UO2)2(PO4)2) precipitation irrespective of the starting forms of calcium and phosphate. At pH 7.5, a condition at which calcium phosphate solids could form, the uptake mechanism depended on the nature of the calcium and phosphate as determined by X-ray absorption spectroscopy and laser-induced fluorescence spectroscopy. When dissolved uranium, calcium, and phosphate were added simultaneously, uranium was structurally incorporated into a newly formed amorphous calcium phosphate solid. Adsorption was the dominant removal mechanism for uranium contacted with preformed amorphous calcium phosphate solids. When U(VI) was added to a suspension containing amorphous calcium phosphate solids as well as dissolved calcium and phosphate, then removal occurred through precipitation (57 ± 4%) of autunite and adsorption (43 ± 4%) onto calcium phosphate. Dissolved uranium, calcium, and phosphate concentrations with saturation index calculations helped identify removal mechanisms and determine thermodynamically favorable solid phases.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Adsorption</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Precipitation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Calcium</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fluorescence</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Thermodynamics</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Uranium</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Maillot, Fabien</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Zheming</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Catalano, Jeffrey G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Giammar, Daniel E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Environmental science & technology</subfield><subfield code="d">Washington, DC : ACS Publ., 1967</subfield><subfield code="g">50(2016), 6, Seite 3128</subfield><subfield code="w">(DE-627)129852457</subfield><subfield code="w">(DE-600)280653-8</subfield><subfield code="w">(DE-576)01515274X</subfield><subfield code="x">0013-936X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:50</subfield><subfield code="g">year:2016</subfield><subfield code="g">number:6</subfield><subfield code="g">pages:3128</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://www.ncbi.nlm.nih.gov/pubmed/26934085</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://search.proquest.com/docview/1777505699</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-UMW</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-CHE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_252</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2006</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">50</subfield><subfield code="j">2016</subfield><subfield code="e">6</subfield><subfield code="h">3128</subfield></datafield></record></collection>
|
| score |
7.400467 |