Uranium Removal from Ground Water Using Zero Valent Iron Media
Removal of uranium from contaminated ground water using zero valent iron is currently under evaluation at several U.S. Department of Energy (DOE) facilities. Uranium removal by zero valent iron may occur via adsorption onto iron corrosion products, and by reduction to less soluble valence states by...
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| Veröffentlicht in: | Ground water 1999-07, Vol.37 (4), p.618-624 |
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| creator | Farrell, James Bostick, William D. Jarabek, Robert J. Fiedor, Joseph N. |
| description | Removal of uranium from contaminated ground water using zero valent iron is currently under evaluation at several U.S. Department of Energy (DOE) facilities. Uranium removal by zero valent iron may occur via adsorption onto iron corrosion products, and by reduction to less soluble valence states by reactions with elemental iron. This research investigated the effects of water chemistry and surface precipitate buildup on the removal of soluble uranium by zero valent iron. Batch testing was performed to assess solution chemistry effects on uranium adsorption to the potential iron corrosion products, magnetite and a mixed valent amorphous iron oxide. Uranium adsorption to the simulated iron corrosion products was highly dependent on pH, and the concentration and speciation of the background electrolyte solution. Uranium removal via reduction by elemental iron closely approximated pseudo‐first‐order removal kinetics, despite the buildup of up to 40,000 monolayers of precipitated uranium on the iron surfaces. This indicates that the rate of uranium removal is not strongly dependent on the thickness of the adsorbed uranium layer. Short‐term rates of uranium reduction were similar for all solutions tested, but long‐term rates were highly dependent on water chemistry. Compared to deionized water, uranium removal rates were increased in sodium chloride containing solutions and reduced in sodium nitrate solutions. The strong influence of water chemistry on long‐term reduction rates indicates that system design will require extnded testing with the ground water of interest. |
| doi_str_mv | 10.1111/j.1745-6584.1999.tb01150.x |
| format | Article |
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Uranium removal by zero valent iron may occur via adsorption onto iron corrosion products, and by reduction to less soluble valence states by reactions with elemental iron. This research investigated the effects of water chemistry and surface precipitate buildup on the removal of soluble uranium by zero valent iron. Batch testing was performed to assess solution chemistry effects on uranium adsorption to the potential iron corrosion products, magnetite and a mixed valent amorphous iron oxide. Uranium adsorption to the simulated iron corrosion products was highly dependent on pH, and the concentration and speciation of the background electrolyte solution. Uranium removal via reduction by elemental iron closely approximated pseudo‐first‐order removal kinetics, despite the buildup of up to 40,000 monolayers of precipitated uranium on the iron surfaces. This indicates that the rate of uranium removal is not strongly dependent on the thickness of the adsorbed uranium layer. Short‐term rates of uranium reduction were similar for all solutions tested, but long‐term rates were highly dependent on water chemistry. Compared to deionized water, uranium removal rates were increased in sodium chloride containing solutions and reduced in sodium nitrate solutions. The strong influence of water chemistry on long‐term reduction rates indicates that system design will require extnded testing with the ground water of interest.</description><identifier>ISSN: 0017-467X</identifier><identifier>EISSN: 1745-6584</identifier><identifier>DOI: 10.1111/j.1745-6584.1999.tb01150.x</identifier><identifier>CODEN: GRWAAP</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>054000 - Nuclear Fuels- Health & Safety ; ACTINIDES ; ADSORPTION ; Bioremediation ; CHEMISTRY ; CLEANING ; Corrosion and anti-corrosives ; DECONTAMINATION ; ELEMENTS ; Environmental aspects ; GROUND WATER ; Groundwater ; HYDROGEN COMPOUNDS ; IRON ; METALS ; NUCLEAR FACILITIES ; NUCLEAR FUEL CYCLE AND FUEL MATERIALS ; Oxidation-reduction reaction ; Oxidizing agents ; OXYGEN COMPOUNDS ; Pollution ; REMEDIAL ACTION ; SORPTION ; TRANSITION ELEMENTS ; URANIUM ; WATER ; WATER CHEMISTRY ; Water pollution ; Water, Underground</subject><ispartof>Ground water, 1999-07, Vol.37 (4), p.618-624</ispartof><rights>COPYRIGHT 1999 National Ground Water Association</rights><rights>Copyright Ground Water Publishing Company Jul/Aug 1999</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a6598-52e8c93c6cd4531436cddd9d3289a74769401aec53311540972d91e49d93c7373</citedby><cites>FETCH-LOGICAL-a6598-52e8c93c6cd4531436cddd9d3289a74769401aec53311540972d91e49d93c7373</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1745-6584.1999.tb01150.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1745-6584.1999.tb01150.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/6451510$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Farrell, James</creatorcontrib><creatorcontrib>Bostick, William D.</creatorcontrib><creatorcontrib>Jarabek, Robert J.</creatorcontrib><creatorcontrib>Fiedor, Joseph N.</creatorcontrib><title>Uranium Removal from Ground Water Using Zero Valent Iron Media</title><title>Ground water</title><description>Removal of uranium from contaminated ground water using zero valent iron is currently under evaluation at several U.S. Department of Energy (DOE) facilities. Uranium removal by zero valent iron may occur via adsorption onto iron corrosion products, and by reduction to less soluble valence states by reactions with elemental iron. This research investigated the effects of water chemistry and surface precipitate buildup on the removal of soluble uranium by zero valent iron. Batch testing was performed to assess solution chemistry effects on uranium adsorption to the potential iron corrosion products, magnetite and a mixed valent amorphous iron oxide. Uranium adsorption to the simulated iron corrosion products was highly dependent on pH, and the concentration and speciation of the background electrolyte solution. Uranium removal via reduction by elemental iron closely approximated pseudo‐first‐order removal kinetics, despite the buildup of up to 40,000 monolayers of precipitated uranium on the iron surfaces. This indicates that the rate of uranium removal is not strongly dependent on the thickness of the adsorbed uranium layer. Short‐term rates of uranium reduction were similar for all solutions tested, but long‐term rates were highly dependent on water chemistry. Compared to deionized water, uranium removal rates were increased in sodium chloride containing solutions and reduced in sodium nitrate solutions. The strong influence of water chemistry on long‐term reduction rates indicates that system design will require extnded testing with the ground water of interest.</description><subject>054000 - Nuclear Fuels- Health & Safety</subject><subject>ACTINIDES</subject><subject>ADSORPTION</subject><subject>Bioremediation</subject><subject>CHEMISTRY</subject><subject>CLEANING</subject><subject>Corrosion and anti-corrosives</subject><subject>DECONTAMINATION</subject><subject>ELEMENTS</subject><subject>Environmental aspects</subject><subject>GROUND WATER</subject><subject>Groundwater</subject><subject>HYDROGEN COMPOUNDS</subject><subject>IRON</subject><subject>METALS</subject><subject>NUCLEAR FACILITIES</subject><subject>NUCLEAR FUEL CYCLE AND FUEL MATERIALS</subject><subject>Oxidation-reduction reaction</subject><subject>Oxidizing agents</subject><subject>OXYGEN COMPOUNDS</subject><subject>Pollution</subject><subject>REMEDIAL ACTION</subject><subject>SORPTION</subject><subject>TRANSITION ELEMENTS</subject><subject>URANIUM</subject><subject>WATER</subject><subject>WATER CHEMISTRY</subject><subject>Water pollution</subject><subject>Water, Underground</subject><issn>0017-467X</issn><issn>1745-6584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqVklFv0zAUhSMEEmXwH6I9wAvJ7NiOYx5AVcXaiQEStCvi5co4bnFJ7M1OWPfvcdSp5aFiwn6wZX_n6Pj6JskpRjmO42yTY05ZVrKK5lgIkXc_EMYM5dtHyWh_9TgZIYR5Rkv-7WnyLIQNQogIJEbJ24WX1vRt-kW37rds0pV3bTr1rrd1upSd9ukiGLtOv2vv0ivZaNulF97Z9KOujXyePFnJJugX9-tJsjh_P5_MssvP04vJ-DKTJRNVxgpdKUFUqWrKCKYkbupa1KSohOSUl4IiLLVihMT0FAle1AJrKuoo4oSTk-R05-tCZyAo02n1UzlrteqgpAwzjCL0agdde3fT69BBa4LSTSOtdn0ATqNTxflg9_KfZIEjVxXVgyCO4QrB8MNgzBifLQ4v2YMb13sbiwcFKStaFQgdoHUsOBi7cp2XanCEMRPDRxcD9PoItNZWe9k4q1cmHv-NZ0fwOGvdGnWMf7PjlXcheL2Ca29a6e8AIxiaDzYwdBgMHQaDCO6bD7ZR_G4nvo2md_-hhOlyPC9xdYhrQqe3ewfpf0EZi85g-WkKX68-zMlsdg4T8gdyf-sJ</recordid><startdate>199907</startdate><enddate>199907</enddate><creator>Farrell, James</creator><creator>Bostick, William D.</creator><creator>Jarabek, Robert J.</creator><creator>Fiedor, Joseph N.</creator><general>Blackwell Publishing Ltd</general><general>National Ground Water Association</general><general>Ground Water Publishing Company</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7ST</scope><scope>7UA</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>R05</scope><scope>S0X</scope><scope>SOI</scope><scope>7TV</scope><scope>7TG</scope><scope>KL.</scope><scope>7SE</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>OTOTI</scope></search><sort><creationdate>199907</creationdate><title>Uranium Removal from Ground Water Using Zero Valent Iron Media</title><author>Farrell, James ; Bostick, William D. ; Jarabek, Robert J. ; Fiedor, Joseph N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a6598-52e8c93c6cd4531436cddd9d3289a74769401aec53311540972d91e49d93c7373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>054000 - 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Academic</collection><collection>Corrosion Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>OSTI.GOV</collection><jtitle>Ground water</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Farrell, James</au><au>Bostick, William D.</au><au>Jarabek, Robert J.</au><au>Fiedor, Joseph N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Uranium Removal from Ground Water Using Zero Valent Iron Media</atitle><jtitle>Ground water</jtitle><date>1999-07</date><risdate>1999</risdate><volume>37</volume><issue>4</issue><spage>618</spage><epage>624</epage><pages>618-624</pages><issn>0017-467X</issn><eissn>1745-6584</eissn><coden>GRWAAP</coden><abstract>Removal of uranium from contaminated ground water using zero valent iron is currently under evaluation at several U.S. Department of Energy (DOE) facilities. Uranium removal by zero valent iron may occur via adsorption onto iron corrosion products, and by reduction to less soluble valence states by reactions with elemental iron. This research investigated the effects of water chemistry and surface precipitate buildup on the removal of soluble uranium by zero valent iron. Batch testing was performed to assess solution chemistry effects on uranium adsorption to the potential iron corrosion products, magnetite and a mixed valent amorphous iron oxide. Uranium adsorption to the simulated iron corrosion products was highly dependent on pH, and the concentration and speciation of the background electrolyte solution. Uranium removal via reduction by elemental iron closely approximated pseudo‐first‐order removal kinetics, despite the buildup of up to 40,000 monolayers of precipitated uranium on the iron surfaces. This indicates that the rate of uranium removal is not strongly dependent on the thickness of the adsorbed uranium layer. Short‐term rates of uranium reduction were similar for all solutions tested, but long‐term rates were highly dependent on water chemistry. Compared to deionized water, uranium removal rates were increased in sodium chloride containing solutions and reduced in sodium nitrate solutions. The strong influence of water chemistry on long‐term reduction rates indicates that system design will require extnded testing with the ground water of interest.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1745-6584.1999.tb01150.x</doi><tpages>7</tpages></addata></record> |
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| ispartof | Ground water, 1999-07, Vol.37 (4), p.618-624 |
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| subjects | 054000 - Nuclear Fuels- Health & Safety ACTINIDES ADSORPTION Bioremediation CHEMISTRY CLEANING Corrosion and anti-corrosives DECONTAMINATION ELEMENTS Environmental aspects GROUND WATER Groundwater HYDROGEN COMPOUNDS IRON METALS NUCLEAR FACILITIES NUCLEAR FUEL CYCLE AND FUEL MATERIALS Oxidation-reduction reaction Oxidizing agents OXYGEN COMPOUNDS Pollution REMEDIAL ACTION SORPTION TRANSITION ELEMENTS URANIUM WATER WATER CHEMISTRY Water pollution Water, Underground |
| title | Uranium Removal from Ground Water Using Zero Valent Iron Media |
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