Stability of arsenate minerals in soil under biotically generated reducing conditions
Mining activities and arsenical pesticide applications can introduce arsenate compounds into soils and sediments. Under water-saturated (flooded) soil conditions arsenate solids are subjected to biotically generated reducing conditions and may undergo reductive dissolution. While thermodynamic calcu...
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| Veröffentlicht in: | Soil Science Society of America journal 1998-11, Vol.62 (6), p.1530-1537 |
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| creator | Rochette, E.A. (University of Idaho, Moscow, ID.) Li, G.C Fendorf, S.E |
| description | Mining activities and arsenical pesticide applications can introduce arsenate compounds into soils and sediments. Under water-saturated (flooded) soil conditions arsenate solids are subjected to biotically generated reducing conditions and may undergo reductive dissolution. While thermodynamic calculations have been used to predict the conditions under which mineral-associated As undergoes reduction there is relatively little data from systems in which well-characterized arsenate solids have been subjected to reducing conditions and a limited amount of information about the reduction of mineral-bound arsenate. In this study the behavior of five arsenates was observed under reducing conditions generated by flooded soils. The apparent solubility of the arsenates decreased in the order CaHAsO4 = Na2HAsO4(.)7H2O AlAsO4(.)2H2O MnHAsO4 FeAsO4(.)2H2O under oxic conditions; under anoxic conditions (redox potential 0 mV) the apparent solubility was FeAsO4(.)2H2O greater than or equal to CaHAsO4 AlAsO4(.)2H2O MnHAsO4. Calcium and sodium arsenates completely dissolved under the initial oxidizing conditions. X-ray absorption near-edge structure (XANES) spectroscopy indicated that As in AlAsO4(.)2H2O rapidly transformed to solid-phase As(III). Manganese arsenate yielded the least solution and solid-phase As(III) of all of the minerals. Iron arsenate underwent reductive dissolution, releasing As(III) to solution and solid phases and thus may yield solution or solid-phase As(III) if prolonged anoxic conditions prevail |
| doi_str_mv | 10.2136/sssaj1998.03615995006200060008x |
| format | Article |
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(University of Idaho, Moscow, ID.) ; Li, G.C ; Fendorf, S.E</creator><creatorcontrib>Rochette, E.A. (University of Idaho, Moscow, ID.) ; Li, G.C ; Fendorf, S.E</creatorcontrib><description>Mining activities and arsenical pesticide applications can introduce arsenate compounds into soils and sediments. Under water-saturated (flooded) soil conditions arsenate solids are subjected to biotically generated reducing conditions and may undergo reductive dissolution. While thermodynamic calculations have been used to predict the conditions under which mineral-associated As undergoes reduction there is relatively little data from systems in which well-characterized arsenate solids have been subjected to reducing conditions and a limited amount of information about the reduction of mineral-bound arsenate. In this study the behavior of five arsenates was observed under reducing conditions generated by flooded soils. The apparent solubility of the arsenates decreased in the order CaHAsO4 = Na2HAsO4(.)7H2O AlAsO4(.)2H2O MnHAsO4 FeAsO4(.)2H2O under oxic conditions; under anoxic conditions (redox potential 0 mV) the apparent solubility was FeAsO4(.)2H2O greater than or equal to CaHAsO4 AlAsO4(.)2H2O MnHAsO4. Calcium and sodium arsenates completely dissolved under the initial oxidizing conditions. X-ray absorption near-edge structure (XANES) spectroscopy indicated that As in AlAsO4(.)2H2O rapidly transformed to solid-phase As(III). Manganese arsenate yielded the least solution and solid-phase As(III) of all of the minerals. Iron arsenate underwent reductive dissolution, releasing As(III) to solution and solid phases and thus may yield solution or solid-phase As(III) if prolonged anoxic conditions prevail</description><identifier>ISSN: 0361-5995</identifier><identifier>EISSN: 1435-0661</identifier><identifier>DOI: 10.2136/sssaj1998.03615995006200060008x</identifier><identifier>CODEN: SSSJD4</identifier><language>eng</language><publisher>Madison: Soil Science Society of America</publisher><subject>ALFISOLS ; ANAEROBIOSE ; ANAEROBIOSIS ; Arsenic ; ARSENIC COMPOUNDS ; CHIMIE DU SOL ; COMPOSE ARSENICAL ; COMPUESTOS ARSENICALES ; CONCENTRATION ; ESTABILIDAD ; LOAM SOILS ; LUVISOL ; LUVISOLES ; LUVISOLS ; MINERALES ; MINERALS ; MINERAUX ; Mining ; Pesticide application ; Pesticides ; POTENCIAL REDOX ; POTENTIEL REDOX ; QUIMICA DEL SUELO ; REDOX POTENTIAL ; REDUCCION ; REDUCTION ; REDUCTIVE DISSOLUTION ; SALES ; SALTS ; SATURATED CONDITIONS ; SEL ; SILTY SOILS ; SOIL CHEMISTRY ; SOIL SOLUTION ; Soils ; SOL LIMONEUX ; SOL SABLOLIMONEUX ; SOLUBILIDAD ; SOLUBILITE ; SOLUBILITY ; SOLUCIONES DEL SUELO ; SOLUTION DU SOL ; STABILITE ; STABILITY ; SUELO FRANCO ; SUELO LIMOSO ; TEMPORAL VARIATION</subject><ispartof>Soil Science Society of America journal, 1998-11, Vol.62 (6), p.1530-1537</ispartof><rights>1998 Soil Science Society of America</rights><rights>Copyright American Society of Agronomy Nov 1998</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a560X-31cfb95b6432f86207bba993c5a952f379b109965efc5e1dea1fa53329630afd3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.2136%2Fsssaj1998.03615995006200060008x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.2136%2Fsssaj1998.03615995006200060008x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Rochette, E.A. (University of Idaho, Moscow, ID.)</creatorcontrib><creatorcontrib>Li, G.C</creatorcontrib><creatorcontrib>Fendorf, S.E</creatorcontrib><title>Stability of arsenate minerals in soil under biotically generated reducing conditions</title><title>Soil Science Society of America journal</title><description>Mining activities and arsenical pesticide applications can introduce arsenate compounds into soils and sediments. Under water-saturated (flooded) soil conditions arsenate solids are subjected to biotically generated reducing conditions and may undergo reductive dissolution. While thermodynamic calculations have been used to predict the conditions under which mineral-associated As undergoes reduction there is relatively little data from systems in which well-characterized arsenate solids have been subjected to reducing conditions and a limited amount of information about the reduction of mineral-bound arsenate. In this study the behavior of five arsenates was observed under reducing conditions generated by flooded soils. The apparent solubility of the arsenates decreased in the order CaHAsO4 = Na2HAsO4(.)7H2O AlAsO4(.)2H2O MnHAsO4 FeAsO4(.)2H2O under oxic conditions; under anoxic conditions (redox potential 0 mV) the apparent solubility was FeAsO4(.)2H2O greater than or equal to CaHAsO4 AlAsO4(.)2H2O MnHAsO4. Calcium and sodium arsenates completely dissolved under the initial oxidizing conditions. X-ray absorption near-edge structure (XANES) spectroscopy indicated that As in AlAsO4(.)2H2O rapidly transformed to solid-phase As(III). Manganese arsenate yielded the least solution and solid-phase As(III) of all of the minerals. Iron arsenate underwent reductive dissolution, releasing As(III) to solution and solid phases and thus may yield solution or solid-phase As(III) if prolonged anoxic conditions prevail</description><subject>ALFISOLS</subject><subject>ANAEROBIOSE</subject><subject>ANAEROBIOSIS</subject><subject>Arsenic</subject><subject>ARSENIC COMPOUNDS</subject><subject>CHIMIE DU SOL</subject><subject>COMPOSE ARSENICAL</subject><subject>COMPUESTOS ARSENICALES</subject><subject>CONCENTRATION</subject><subject>ESTABILIDAD</subject><subject>LOAM SOILS</subject><subject>LUVISOL</subject><subject>LUVISOLES</subject><subject>LUVISOLS</subject><subject>MINERALES</subject><subject>MINERALS</subject><subject>MINERAUX</subject><subject>Mining</subject><subject>Pesticide application</subject><subject>Pesticides</subject><subject>POTENCIAL REDOX</subject><subject>POTENTIEL REDOX</subject><subject>QUIMICA DEL SUELO</subject><subject>REDOX POTENTIAL</subject><subject>REDUCCION</subject><subject>REDUCTION</subject><subject>REDUCTIVE DISSOLUTION</subject><subject>SALES</subject><subject>SALTS</subject><subject>SATURATED CONDITIONS</subject><subject>SEL</subject><subject>SILTY SOILS</subject><subject>SOIL CHEMISTRY</subject><subject>SOIL SOLUTION</subject><subject>Soils</subject><subject>SOL LIMONEUX</subject><subject>SOL SABLOLIMONEUX</subject><subject>SOLUBILIDAD</subject><subject>SOLUBILITE</subject><subject>SOLUBILITY</subject><subject>SOLUCIONES DEL SUELO</subject><subject>SOLUTION DU SOL</subject><subject>STABILITE</subject><subject>STABILITY</subject><subject>SUELO FRANCO</subject><subject>SUELO LIMOSO</subject><subject>TEMPORAL VARIATION</subject><issn>0361-5995</issn><issn>1435-0661</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNqV0UtLxDAQAOAgCq6PnyAED3rqmjSbtDmJiE8ED3XBW0jbZMnSTTRp0f33TlnxIIvgIZPLNzPJDELnlExzysRFSkkvqZTllDBBuZScEJETCHDKzx00oTPGMyIE3UWT0WQj2kcHKS0JgQxCJmhe9bp2nevXOFisYzJe9wavnDdRdwk7j1NwHR58ayKuXehdo7tujRdmFL1pcTTt0Di_wE3wretd8OkI7VnINsff9yGa3968XN9nT893D9dXT5nmgrxmjDa2lrwWM5bbEh5f1LWWkjVcS55bVsiaEikFN7bhhrZGU6s5Y7kUjGjbskN0vqn7FsP7YFKvVi41puu0N2FIqpixgrO8lCDP_pQwUi5gPgBPf8FlGKKHX4ARhDMhGKDLDWpiSCkaq96iW-m4VpSMpYT62Y7auh2ooDYVPlxn1v9NV9XVY15VEEezjbxCh5NNB6uD0ovokppXwGHtZSFy9gUOHKhV</recordid><startdate>199811</startdate><enddate>199811</enddate><creator>Rochette, E.A. (University of Idaho, Moscow, ID.)</creator><creator>Li, G.C</creator><creator>Fendorf, S.E</creator><general>Soil Science Society of America</general><general>American Society of Agronomy</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>KR7</scope></search><sort><creationdate>199811</creationdate><title>Stability of arsenate minerals in soil under biotically generated reducing conditions</title><author>Rochette, E.A. (University of Idaho, Moscow, ID.) ; Li, G.C ; Fendorf, S.E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a560X-31cfb95b6432f86207bba993c5a952f379b109965efc5e1dea1fa53329630afd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>ALFISOLS</topic><topic>ANAEROBIOSE</topic><topic>ANAEROBIOSIS</topic><topic>Arsenic</topic><topic>ARSENIC COMPOUNDS</topic><topic>CHIMIE DU SOL</topic><topic>COMPOSE ARSENICAL</topic><topic>COMPUESTOS ARSENICALES</topic><topic>CONCENTRATION</topic><topic>ESTABILIDAD</topic><topic>LOAM SOILS</topic><topic>LUVISOL</topic><topic>LUVISOLES</topic><topic>LUVISOLS</topic><topic>MINERALES</topic><topic>MINERALS</topic><topic>MINERAUX</topic><topic>Mining</topic><topic>Pesticide application</topic><topic>Pesticides</topic><topic>POTENCIAL REDOX</topic><topic>POTENTIEL REDOX</topic><topic>QUIMICA DEL SUELO</topic><topic>REDOX POTENTIAL</topic><topic>REDUCCION</topic><topic>REDUCTION</topic><topic>REDUCTIVE DISSOLUTION</topic><topic>SALES</topic><topic>SALTS</topic><topic>SATURATED CONDITIONS</topic><topic>SEL</topic><topic>SILTY SOILS</topic><topic>SOIL CHEMISTRY</topic><topic>SOIL SOLUTION</topic><topic>Soils</topic><topic>SOL LIMONEUX</topic><topic>SOL SABLOLIMONEUX</topic><topic>SOLUBILIDAD</topic><topic>SOLUBILITE</topic><topic>SOLUBILITY</topic><topic>SOLUCIONES DEL SUELO</topic><topic>SOLUTION DU SOL</topic><topic>STABILITE</topic><topic>STABILITY</topic><topic>SUELO FRANCO</topic><topic>SUELO LIMOSO</topic><topic>TEMPORAL VARIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rochette, E.A. (University of Idaho, Moscow, ID.)</creatorcontrib><creatorcontrib>Li, G.C</creatorcontrib><creatorcontrib>Fendorf, S.E</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Soil Science Society of America journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rochette, E.A. (University of Idaho, Moscow, ID.)</au><au>Li, G.C</au><au>Fendorf, S.E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stability of arsenate minerals in soil under biotically generated reducing conditions</atitle><jtitle>Soil Science Society of America journal</jtitle><date>1998-11</date><risdate>1998</risdate><volume>62</volume><issue>6</issue><spage>1530</spage><epage>1537</epage><pages>1530-1537</pages><issn>0361-5995</issn><eissn>1435-0661</eissn><coden>SSSJD4</coden><abstract>Mining activities and arsenical pesticide applications can introduce arsenate compounds into soils and sediments. Under water-saturated (flooded) soil conditions arsenate solids are subjected to biotically generated reducing conditions and may undergo reductive dissolution. While thermodynamic calculations have been used to predict the conditions under which mineral-associated As undergoes reduction there is relatively little data from systems in which well-characterized arsenate solids have been subjected to reducing conditions and a limited amount of information about the reduction of mineral-bound arsenate. In this study the behavior of five arsenates was observed under reducing conditions generated by flooded soils. The apparent solubility of the arsenates decreased in the order CaHAsO4 = Na2HAsO4(.)7H2O AlAsO4(.)2H2O MnHAsO4 FeAsO4(.)2H2O under oxic conditions; under anoxic conditions (redox potential 0 mV) the apparent solubility was FeAsO4(.)2H2O greater than or equal to CaHAsO4 AlAsO4(.)2H2O MnHAsO4. Calcium and sodium arsenates completely dissolved under the initial oxidizing conditions. X-ray absorption near-edge structure (XANES) spectroscopy indicated that As in AlAsO4(.)2H2O rapidly transformed to solid-phase As(III). Manganese arsenate yielded the least solution and solid-phase As(III) of all of the minerals. Iron arsenate underwent reductive dissolution, releasing As(III) to solution and solid phases and thus may yield solution or solid-phase As(III) if prolonged anoxic conditions prevail</abstract><cop>Madison</cop><pub>Soil Science Society of America</pub><doi>10.2136/sssaj1998.03615995006200060008x</doi><tpages>8</tpages></addata></record> |
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| subjects | ALFISOLS ANAEROBIOSE ANAEROBIOSIS Arsenic ARSENIC COMPOUNDS CHIMIE DU SOL COMPOSE ARSENICAL COMPUESTOS ARSENICALES CONCENTRATION ESTABILIDAD LOAM SOILS LUVISOL LUVISOLES LUVISOLS MINERALES MINERALS MINERAUX Mining Pesticide application Pesticides POTENCIAL REDOX POTENTIEL REDOX QUIMICA DEL SUELO REDOX POTENTIAL REDUCCION REDUCTION REDUCTIVE DISSOLUTION SALES SALTS SATURATED CONDITIONS SEL SILTY SOILS SOIL CHEMISTRY SOIL SOLUTION Soils SOL LIMONEUX SOL SABLOLIMONEUX SOLUBILIDAD SOLUBILITE SOLUBILITY SOLUCIONES DEL SUELO SOLUTION DU SOL STABILITE STABILITY SUELO FRANCO SUELO LIMOSO TEMPORAL VARIATION |
| title | Stability of arsenate minerals in soil under biotically generated reducing conditions |
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