Impact of dissolved silica on arsenite removal by nano-particulate FeS and FeS-coated sand
► Arsenite retention by the FeS was not significantly affected by dissolved silica. ► Arsenic-sulfur solid phase associations implicated in lack of dissolved silica impact. ► FeS-based sorbents may have advantage over Fe oxyhydroxides for arsenite retention. This work evaluated the inhibitory effect...
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| Veröffentlicht in: | Chemosphere (Oxford) 2013-07, Vol.92 (4), p.477-481 |
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| creator | Han, Young-Soo Demond, Avery H. Hayes, Kim F. |
| description | ► Arsenite retention by the FeS was not significantly affected by dissolved silica. ► Arsenic-sulfur solid phase associations implicated in lack of dissolved silica impact. ► FeS-based sorbents may have advantage over Fe oxyhydroxides for arsenite retention.
This work evaluated the inhibitory effect of dissolved silica on arsenite adsorption to nanoparticulate FeS (NP-FeS) or mackinawite and FeS-coated sand (CS-FeS) sorbents. Arsenite retention by the NP-FeS solid was not affected by dissolved silicate over a wide range in pH, in contrast to the known inhibitory effect of dissolved silica on As(III) uptake by Fe-(hydr)oxide systems. However, some inhibition was observed in CS-FeS system at pH 9. This latter result is attributed to the co-existence of both FeS and small amounts of Fe-(hydr)oxide phases on the sand surface. Given the ubiquitous presence of dissolved Si in groundwater, FeS-based sorbents may have an advantage for As retention compared to those based on Fe-(hydr)oxides in reducing subsurface environments. |
| doi_str_mv | 10.1016/j.chemosphere.2013.02.033 |
| format | Article |
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This work evaluated the inhibitory effect of dissolved silica on arsenite adsorption to nanoparticulate FeS (NP-FeS) or mackinawite and FeS-coated sand (CS-FeS) sorbents. Arsenite retention by the NP-FeS solid was not affected by dissolved silicate over a wide range in pH, in contrast to the known inhibitory effect of dissolved silica on As(III) uptake by Fe-(hydr)oxide systems. However, some inhibition was observed in CS-FeS system at pH 9. This latter result is attributed to the co-existence of both FeS and small amounts of Fe-(hydr)oxide phases on the sand surface. Given the ubiquitous presence of dissolved Si in groundwater, FeS-based sorbents may have an advantage for As retention compared to those based on Fe-(hydr)oxides in reducing subsurface environments.</description><identifier>ISSN: 0045-6535</identifier><identifier>EISSN: 1879-1298</identifier><identifier>DOI: 10.1016/j.chemosphere.2013.02.033</identifier><identifier>PMID: 23538091</identifier><identifier>CODEN: CMSHAF</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Adsorption ; Applied sciences ; arsenic ; Arsenite adsorption ; arsenites ; Arsenites - chemistry ; Dissolved silicate inhibition ; Drinking water and swimming-pool water. Desalination ; Environmental Restoration and Remediation ; Exact sciences and technology ; Ferrous Compounds - chemistry ; FeS ; FeS-coated sand ; General purification processes ; groundwater ; Hydrogen-Ion Concentration ; iron hydroxides ; Metal Nanoparticles - chemistry ; Pollution ; sand ; silica ; silicon ; Silicon Dioxide - chemistry ; Wastewaters ; Water treatment and pollution</subject><ispartof>Chemosphere (Oxford), 2013-07, Vol.92 (4), p.477-481</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><rights>Copyright © 2013 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c431t-61e5067c0a3edee7d3ee090620e1133e104fb6d661aaae2d51587149e6c388a3</citedby><cites>FETCH-LOGICAL-c431t-61e5067c0a3edee7d3ee090620e1133e104fb6d661aaae2d51587149e6c388a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.chemosphere.2013.02.033$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27410937$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23538091$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Han, Young-Soo</creatorcontrib><creatorcontrib>Demond, Avery H.</creatorcontrib><creatorcontrib>Hayes, Kim F.</creatorcontrib><title>Impact of dissolved silica on arsenite removal by nano-particulate FeS and FeS-coated sand</title><title>Chemosphere (Oxford)</title><addtitle>Chemosphere</addtitle><description>► Arsenite retention by the FeS was not significantly affected by dissolved silica. ► Arsenic-sulfur solid phase associations implicated in lack of dissolved silica impact. ► FeS-based sorbents may have advantage over Fe oxyhydroxides for arsenite retention.
This work evaluated the inhibitory effect of dissolved silica on arsenite adsorption to nanoparticulate FeS (NP-FeS) or mackinawite and FeS-coated sand (CS-FeS) sorbents. Arsenite retention by the NP-FeS solid was not affected by dissolved silicate over a wide range in pH, in contrast to the known inhibitory effect of dissolved silica on As(III) uptake by Fe-(hydr)oxide systems. However, some inhibition was observed in CS-FeS system at pH 9. This latter result is attributed to the co-existence of both FeS and small amounts of Fe-(hydr)oxide phases on the sand surface. Given the ubiquitous presence of dissolved Si in groundwater, FeS-based sorbents may have an advantage for As retention compared to those based on Fe-(hydr)oxides in reducing subsurface environments.</description><subject>Adsorption</subject><subject>Applied sciences</subject><subject>arsenic</subject><subject>Arsenite adsorption</subject><subject>arsenites</subject><subject>Arsenites - chemistry</subject><subject>Dissolved silicate inhibition</subject><subject>Drinking water and swimming-pool water. Desalination</subject><subject>Environmental Restoration and Remediation</subject><subject>Exact sciences and technology</subject><subject>Ferrous Compounds - chemistry</subject><subject>FeS</subject><subject>FeS-coated sand</subject><subject>General purification processes</subject><subject>groundwater</subject><subject>Hydrogen-Ion Concentration</subject><subject>iron hydroxides</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Pollution</subject><subject>sand</subject><subject>silica</subject><subject>silicon</subject><subject>Silicon Dioxide - chemistry</subject><subject>Wastewaters</subject><subject>Water treatment and pollution</subject><issn>0045-6535</issn><issn>1879-1298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU9v1DAQxS1ERbeFrwDmgMQlYRzHTnJEK0orVeqh5cLFmrUn1KskDnZ2pX77erXLn2NPI9u_N2_mmbGPAkoBQn_ZlvaRxpDmR4pUViBkCVUJUr5iK9E2XSGqrn3NVgC1KrSS6pxdpLQFyGLVvWHnlVSyhU6s2M-bcUa78NBz51MKw54cT37wFnmYOMZEk1-Ix-y3x4FvnviEUyhmjIu3uwHz2xXdc5zcoRY25JvcIZ_fsrMeh0TvTvWSPVx9e1hfF7d332_WX28LW0uxFFqQAt1YQEmOqHGSCDrQFZAQUpKAut9op7VARKqcEqptRN2RtrJtUV6yz8e2cwy_d5QWM_pkaRhworBLRuRd66ZpVZXR7ojaGFKK1Js5-hHjkxFgDsmarfkvWXNI1kBlcrJZ-_5ks9uM5P4q_0SZgU8nAJPFoY84WZ_-cU0toJNN5j4cuR6DwV8xMz_us5PK36Nl3jsT6yNBObW9p2iS9TRZcj6SXYwL_gUDPwOrzKWo</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Han, Young-Soo</creator><creator>Demond, Avery H.</creator><creator>Hayes, Kim F.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20130701</creationdate><title>Impact of dissolved silica on arsenite removal by nano-particulate FeS and FeS-coated sand</title><author>Han, Young-Soo ; Demond, Avery H. ; Hayes, Kim F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c431t-61e5067c0a3edee7d3ee090620e1133e104fb6d661aaae2d51587149e6c388a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adsorption</topic><topic>Applied sciences</topic><topic>arsenic</topic><topic>Arsenite adsorption</topic><topic>arsenites</topic><topic>Arsenites - chemistry</topic><topic>Dissolved silicate inhibition</topic><topic>Drinking water and swimming-pool water. Desalination</topic><topic>Environmental Restoration and Remediation</topic><topic>Exact sciences and technology</topic><topic>Ferrous Compounds - chemistry</topic><topic>FeS</topic><topic>FeS-coated sand</topic><topic>General purification processes</topic><topic>groundwater</topic><topic>Hydrogen-Ion Concentration</topic><topic>iron hydroxides</topic><topic>Metal Nanoparticles - chemistry</topic><topic>Pollution</topic><topic>sand</topic><topic>silica</topic><topic>silicon</topic><topic>Silicon Dioxide - chemistry</topic><topic>Wastewaters</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Han, Young-Soo</creatorcontrib><creatorcontrib>Demond, Avery H.</creatorcontrib><creatorcontrib>Hayes, Kim F.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Chemosphere (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Han, Young-Soo</au><au>Demond, Avery H.</au><au>Hayes, Kim F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impact of dissolved silica on arsenite removal by nano-particulate FeS and FeS-coated sand</atitle><jtitle>Chemosphere (Oxford)</jtitle><addtitle>Chemosphere</addtitle><date>2013-07-01</date><risdate>2013</risdate><volume>92</volume><issue>4</issue><spage>477</spage><epage>481</epage><pages>477-481</pages><issn>0045-6535</issn><eissn>1879-1298</eissn><coden>CMSHAF</coden><abstract>► Arsenite retention by the FeS was not significantly affected by dissolved silica. ► Arsenic-sulfur solid phase associations implicated in lack of dissolved silica impact. ► FeS-based sorbents may have advantage over Fe oxyhydroxides for arsenite retention.
This work evaluated the inhibitory effect of dissolved silica on arsenite adsorption to nanoparticulate FeS (NP-FeS) or mackinawite and FeS-coated sand (CS-FeS) sorbents. Arsenite retention by the NP-FeS solid was not affected by dissolved silicate over a wide range in pH, in contrast to the known inhibitory effect of dissolved silica on As(III) uptake by Fe-(hydr)oxide systems. However, some inhibition was observed in CS-FeS system at pH 9. This latter result is attributed to the co-existence of both FeS and small amounts of Fe-(hydr)oxide phases on the sand surface. Given the ubiquitous presence of dissolved Si in groundwater, FeS-based sorbents may have an advantage for As retention compared to those based on Fe-(hydr)oxides in reducing subsurface environments.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23538091</pmid><doi>10.1016/j.chemosphere.2013.02.033</doi><tpages>5</tpages></addata></record> |
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| subjects | Adsorption Applied sciences arsenic Arsenite adsorption arsenites Arsenites - chemistry Dissolved silicate inhibition Drinking water and swimming-pool water. Desalination Environmental Restoration and Remediation Exact sciences and technology Ferrous Compounds - chemistry FeS FeS-coated sand General purification processes groundwater Hydrogen-Ion Concentration iron hydroxides Metal Nanoparticles - chemistry Pollution sand silica silicon Silicon Dioxide - chemistry Wastewaters Water treatment and pollution |
| title | Impact of dissolved silica on arsenite removal by nano-particulate FeS and FeS-coated sand |
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