{"id":{"repo_id":"unlv","oai_identifier":"oai:oasis.library.unlv.edu:rtds-1294"},"canonical_url":"https://search.dev.ndltd.org/etd/unlv/oai:oasis.library.unlv.edu:rtds-1294","repository":{"repo_id":"unlv","name":"University of Nevada - Las Vegas","base_url":"https://oasis.library.unlv.edu/do/oai/"},"display":{"title":"Exchange of oxygen and hydrogen isotopes between water and water vapor: Experimental results","abstract":"The exchange of {dollar}\\delta\\sp{18}{dollar}O, {dollar}\\delta{dollar}D, and tritium between water and water vapor was quantified using two methods. The first was quiescent equilibration of water samples having widely contrasting isotopic compositions, surface areas, volumes and temperatures, but similar salinities. Rates of exchange (k) depended on surface area and vapor pressure, while the end-point equilibrium was controlled by volume and isotopic composition of the exchanging waters. Values of k ranged from 0.09 to 0.19 cm/day at 22{dollar}\\sp\\circ{dollar}C and from 0.86 to 0.92 cm/day at 52{dollar}\\sp\\circ{dollar}C. The second method involved sparging 30 l of tritiated water (5,000 and 630,000 TU) with a constant 15 l/min flux of water-saturated air (TU {dollar}<{dollar} 10). Half of the tritium was exchanged into the vapor effuent over 40 days; k ranged from 0.025/day to 0.030/day. Equilibration with 630,000 TU was observed over a bubble path of 20 cm, suggesting an alternative method of tritium remediation.","abstract_html":"The exchange of {dollar}\\delta\\sp{18}{dollar}O, {dollar}\\delta{dollar}D, and tritium between water and water vapor was quantified using two methods. The first was quiescent equilibration of water samples having widely contrasting isotopic compositions, surface areas, volumes and temperatures, but similar salinities. Rates of exchange (k) depended on surface area and vapor pressure, while the end-point equilibrium was controlled by volume and isotopic composition of the exchanging waters. Values of k ranged from 0.09 to 0.19 cm/day at 22{dollar}\\sp\\circ{dollar}C and from 0.86 to 0.92 cm/day at 52{dollar}\\sp\\circ{dollar}C. The second method involved sparging 30 l of tritiated water (5,000 and 630,000 TU) with a constant 15 l/min flux of water-saturated air (TU {dollar}&lt;{dollar} 10). Half of the tritium was exchanged into the vapor effuent over 40 days; k ranged from 0.025/day to 0.030/day. Equilibration with 630,000 TU was observed over a bubble path of 20 cm, suggesting an alternative method of tritium remediation.","abstract_has_math":false,"creators":["Slattery, Michael Willem"],"institution":"University of Nevada, Las Vegas","degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Geoscience","degree_department":null,"school":null,"contributors":["Neil L. Ingraham"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1993,"date_issued":"1993-01-01T08:00:00Z","date_published":"1993-01-01T08:00:00Z","updated_at":"2026-07-24T05:24:22Z","subjects":[],"languages":["English"],"rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://oasis.library.unlv.edu/rtds/295"],"render_values":[{"text":"https://oasis.library.unlv.edu/rtds/295","href":"https://oasis.library.unlv.edu/rtds/295","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.25669/z6nr-dvzi","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Neil L. 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For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.25669/z6nr-dvzi","https://oasis.library.unlv.edu/rtds/295","https://oasis.library.unlv.edu/context/rtds/article/1294/viewcontent/uc.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The exchange of {dollar}\\delta\\sp{18}{dollar}O, {dollar}\\delta{dollar}D, and tritium between water and water vapor was quantified using two methods. The first was quiescent equilibration of water samples having widely contrasting isotopic compositions, surface areas, volumes and temperatures, but similar salinities. Rates of exchange (k) depended on surface area and vapor pressure, while the end-point equilibrium was controlled by volume and isotopic composition of the exchanging waters. Values of k ranged from 0.09 to 0.19 cm/day at 22{dollar}\\sp\\circ{dollar}C and from 0.86 to 0.92 cm/day at 52{dollar}\\sp\\circ{dollar}C. The second method involved sparging 30 l of tritiated water (5,000 and 630,000 TU) with a constant 15 l/min flux of water-saturated air (TU {dollar}<{dollar} 10). Half of the tritium was exchanged into the vapor effuent over 40 days; k ranged from 0.025/day to 0.030/day. Equilibration with 630,000 TU was observed over a bubble path of 20 cm, suggesting an alternative method of tritium remediation."]},{"key":"dc:format","label":"Dc Format","values":["pdf"]},{"key":"dc:title","label":"Title","values":["Exchange of oxygen and hydrogen isotopes between water and water vapor: Experimental results"]}]}],"canonical_facts":{"dc:contributor":["Neil L. Ingraham"],"dc:creator":["Slattery, Michael Willem"],"dc:description.abstract":["The exchange of {dollar}\\delta\\sp{18}{dollar}O, {dollar}\\delta{dollar}D, and tritium between water and water vapor was quantified using two methods. The first was quiescent equilibration of water samples having widely contrasting isotopic compositions, surface areas, volumes and temperatures, but similar salinities. Rates of exchange (k) depended on surface area and vapor pressure, while the end-point equilibrium was controlled by volume and isotopic composition of the exchanging waters. Values of k ranged from 0.09 to 0.19 cm/day at 22{dollar}\\sp\\circ{dollar}C and from 0.86 to 0.92 cm/day at 52{dollar}\\sp\\circ{dollar}C. The second method involved sparging 30 l of tritiated water (5,000 and 630,000 TU) with a constant 15 l/min flux of water-saturated air (TU {dollar}<{dollar} 10). Half of the tritium was exchanged into the vapor effuent over 40 days; k ranged from 0.025/day to 0.030/day. Equilibration with 630,000 TU was observed over a bubble path of 20 cm, suggesting an alternative method of tritium remediation."],"dc:format":["pdf"],"dc:identifier":["10.25669/z6nr-dvzi","https://oasis.library.unlv.edu/rtds/295","https://oasis.library.unlv.edu/context/rtds/article/1294/viewcontent/uc.pdf"],"dc:language":["English"],"dc:publisher":["University of Nevada, Las Vegas"],"dc:rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Exchange of oxygen and hydrogen isotopes between water and water vapor: Experimental results"],"dc:type":["Text"],"thesis:degree_discipline":["Geoscience"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:24:22Z"}