Extractive and oxidative removal of copper bound to humic acid in soil
Copper (Cu) is often found strongly bound to natural organic matter (NOM) in soil through the formation of strong Cu-NOM complexes. Therefore, in order to successfully remediate Cu-contaminated soils, effective removal of Cu bound to soil organic matter should be considered. In this study, we invest...
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| Veröffentlicht in: | Environmental science and pollution research international 2015-04, Vol.22 (8), p.6077-6085 |
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| creator | Hwang, Bo-Ram Kim, Eun-Jung Yang, Jung-Seok Baek, Kitae |
| description | Copper (Cu) is often found strongly bound to natural organic matter (NOM) in soil through the formation of strong Cu-NOM complexes. Therefore, in order to successfully remediate Cu-contaminated soils, effective removal of Cu bound to soil organic matter should be considered. In this study, we investigated soil washing methods for Cu removal from a synthetic Cu-contaminated model silica soil coated with humic acid (HA) and from field contaminated soil. Various reagents were studied to extract Cu bound to NOM, which included oxidant (H₂O₂), base (NaOH), and chelating agents (citric acid and ethylenediaminetetraacetic acid (EDTA)). Among the wash reagents, EDTA extracted Cu most effectively since EDTA formed very strong complexes with Cu, and Cu-HA complexes were transformed into Cu-EDTA complexes. NaOH extracted slightly less Cu compared to EDTA. HA was effectively extracted from the model soil under strongly alkaline conditions with NaOH, which seemed to concurrently release Cu bound to HA. However, chemical oxidation with H₂O₂was not effective at destroying Cu-HA complexes. Fourier transform infrared spectroscopy and elemental analysis revealed that chelating agents such as citrate and EDTA were adsorbed onto the model soil via possible complexation between HA and extraction agents. The extraction of Cu from a field contaminated soil sample was effective with chelating agents, while oxidative removal with H₂O₂and extractive removal with NaOH separated negligible amounts of Cu from the soil. Based on these results, Cu bound to organic matter in soil could be effectively removed by chelating agents, although remnant agents may remain in the soil. |
| doi_str_mv | 10.1007/s11356-014-3810-y |
| format | Article |
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Therefore, in order to successfully remediate Cu-contaminated soils, effective removal of Cu bound to soil organic matter should be considered. In this study, we investigated soil washing methods for Cu removal from a synthetic Cu-contaminated model silica soil coated with humic acid (HA) and from field contaminated soil. Various reagents were studied to extract Cu bound to NOM, which included oxidant (H₂O₂), base (NaOH), and chelating agents (citric acid and ethylenediaminetetraacetic acid (EDTA)). Among the wash reagents, EDTA extracted Cu most effectively since EDTA formed very strong complexes with Cu, and Cu-HA complexes were transformed into Cu-EDTA complexes. NaOH extracted slightly less Cu compared to EDTA. HA was effectively extracted from the model soil under strongly alkaline conditions with NaOH, which seemed to concurrently release Cu bound to HA. However, chemical oxidation with H₂O₂was not effective at destroying Cu-HA complexes. Fourier transform infrared spectroscopy and elemental analysis revealed that chelating agents such as citrate and EDTA were adsorbed onto the model soil via possible complexation between HA and extraction agents. The extraction of Cu from a field contaminated soil sample was effective with chelating agents, while oxidative removal with H₂O₂and extractive removal with NaOH separated negligible amounts of Cu from the soil. Based on these results, Cu bound to organic matter in soil could be effectively removed by chelating agents, although remnant agents may remain in the soil.</description><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-014-3810-y</identifier><identifier>PMID: 25388560</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Acetic acid ; Acidic soils ; Acids ; Adsorption ; Alkaline soils ; Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Catalysis ; Chelating ; Chelating agents ; Chelating Agents - chemistry ; citrates ; Citric Acid ; Contamination ; Copper ; Copper - analysis ; Copper - isolation & purification ; Earth and Environmental Science ; Ecotoxicology ; Edetic Acid ; EDTA ; EDTA (chelating agent) ; Environment ; Environmental Chemistry ; Environmental Health ; Extraction ; Fourier analysis ; Fourier transform infrared spectroscopy ; Fourier transforms ; Heavy metals ; Humic acids ; Humic Substances - analysis ; Hydrogen peroxide ; Hydrogen Peroxide - chemistry ; Hydroxyapatite ; Infrared spectroscopy ; Metals ; Methods ; Microscopy, Electron, Scanning ; Models, Chemical ; Organic matter ; Organic soils ; Oxidants ; Oxidation ; Oxidation-Reduction ; Oxidizing agents ; polluted soils ; Reagents ; Research Article ; Silica ; Silicon Dioxide ; Sodium hydroxide ; Sodium Hydroxide - chemistry ; Soil (material) ; Soil contamination ; Soil organic matter ; Soil Pollutants - analysis ; Soil pollution ; Soil remediation ; soil washing ; Spectroscopy, Fourier Transform Infrared ; Spectrum analysis ; Waste Water Technology ; Water Management ; Water Pollution Control</subject><ispartof>Environmental science and pollution research international, 2015-04, Vol.22 (8), p.6077-6085</ispartof><rights>Springer-Verlag Berlin Heidelberg 2014</rights><rights>Springer-Verlag Berlin Heidelberg 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c569t-8a979820f13344661923089d38af49909e3f1f6c83f2eafb7e19c4802141cfd53</citedby><cites>FETCH-LOGICAL-c569t-8a979820f13344661923089d38af49909e3f1f6c83f2eafb7e19c4802141cfd53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11356-014-3810-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11356-014-3810-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25388560$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hwang, Bo-Ram</creatorcontrib><creatorcontrib>Kim, Eun-Jung</creatorcontrib><creatorcontrib>Yang, Jung-Seok</creatorcontrib><creatorcontrib>Baek, Kitae</creatorcontrib><title>Extractive and oxidative removal of copper bound to humic acid in soil</title><title>Environmental science and pollution research international</title><addtitle>Environ Sci Pollut Res</addtitle><addtitle>Environ Sci Pollut Res Int</addtitle><description>Copper (Cu) is often found strongly bound to natural organic matter (NOM) in soil through the formation of strong Cu-NOM complexes. Therefore, in order to successfully remediate Cu-contaminated soils, effective removal of Cu bound to soil organic matter should be considered. In this study, we investigated soil washing methods for Cu removal from a synthetic Cu-contaminated model silica soil coated with humic acid (HA) and from field contaminated soil. Various reagents were studied to extract Cu bound to NOM, which included oxidant (H₂O₂), base (NaOH), and chelating agents (citric acid and ethylenediaminetetraacetic acid (EDTA)). Among the wash reagents, EDTA extracted Cu most effectively since EDTA formed very strong complexes with Cu, and Cu-HA complexes were transformed into Cu-EDTA complexes. NaOH extracted slightly less Cu compared to EDTA. HA was effectively extracted from the model soil under strongly alkaline conditions with NaOH, which seemed to concurrently release Cu bound to HA. However, chemical oxidation with H₂O₂was not effective at destroying Cu-HA complexes. Fourier transform infrared spectroscopy and elemental analysis revealed that chelating agents such as citrate and EDTA were adsorbed onto the model soil via possible complexation between HA and extraction agents. The extraction of Cu from a field contaminated soil sample was effective with chelating agents, while oxidative removal with H₂O₂and extractive removal with NaOH separated negligible amounts of Cu from the soil. Based on these results, Cu bound to organic matter in soil could be effectively removed by chelating agents, although remnant agents may remain in the soil.</description><subject>Acetic acid</subject><subject>Acidic soils</subject><subject>Acids</subject><subject>Adsorption</subject><subject>Alkaline soils</subject><subject>Aquatic Pollution</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Catalysis</subject><subject>Chelating</subject><subject>Chelating agents</subject><subject>Chelating Agents - chemistry</subject><subject>citrates</subject><subject>Citric Acid</subject><subject>Contamination</subject><subject>Copper</subject><subject>Copper - analysis</subject><subject>Copper - isolation & purification</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Edetic Acid</subject><subject>EDTA</subject><subject>EDTA (chelating agent)</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Extraction</subject><subject>Fourier analysis</subject><subject>Fourier transform infrared spectroscopy</subject><subject>Fourier transforms</subject><subject>Heavy metals</subject><subject>Humic acids</subject><subject>Humic Substances - analysis</subject><subject>Hydrogen peroxide</subject><subject>Hydrogen Peroxide - chemistry</subject><subject>Hydroxyapatite</subject><subject>Infrared spectroscopy</subject><subject>Metals</subject><subject>Methods</subject><subject>Microscopy, Electron, Scanning</subject><subject>Models, Chemical</subject><subject>Organic matter</subject><subject>Organic soils</subject><subject>Oxidants</subject><subject>Oxidation</subject><subject>Oxidation-Reduction</subject><subject>Oxidizing agents</subject><subject>polluted soils</subject><subject>Reagents</subject><subject>Research Article</subject><subject>Silica</subject><subject>Silicon Dioxide</subject><subject>Sodium hydroxide</subject><subject>Sodium Hydroxide - chemistry</subject><subject>Soil (material)</subject><subject>Soil contamination</subject><subject>Soil organic matter</subject><subject>Soil Pollutants - analysis</subject><subject>Soil pollution</subject><subject>Soil remediation</subject><subject>soil washing</subject><subject>Spectroscopy, Fourier Transform Infrared</subject><subject>Spectrum analysis</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><issn>0944-1344</issn><issn>1614-7499</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNkkFvFSEUhYnR2Gf1B7hREjduRu8FhoGlaVo1adJF7ZrwGKg0M8MTZpq-fy-vU41x0XRFbvjO4d57IOQtwicE6D4XRN7KBlA0XCE0-2dkg7JWndD6OdmAFqJBLsQReVXKDQADzbqX5Ii1XKlWwoacnd7N2bo53npqp56mu9jb-yr7Md3agaZAXdrtfKbbtFRiTvTnMkZHrYs9jRMtKQ6vyYtgh-LfPJzH5Ors9MfJt-b84uv3ky_njWulnhtldacVg4C8diUlasZB6Z4rG2rLoD0PGKRTPDBvw7bzqJ1QwFCgC33Lj8nH1XeX06_Fl9mMsTg_DHbyaSkGpWYCpGLsCagCwTvF4QmorJtUoGRFP_yH3qQlT3Vmg51SElC1XaVwpVxOpWQfzC7H0ea9QTCH6MwananRmUN0Zl817x6cl-3o-7-KP1lVgK1AqVfTtc__PP2I6_tVFGwy9jrHYq4uGWB7-Ax15Zz_Blf8qh0</recordid><startdate>20150401</startdate><enddate>20150401</enddate><creator>Hwang, Bo-Ram</creator><creator>Kim, Eun-Jung</creator><creator>Yang, Jung-Seok</creator><creator>Baek, Kitae</creator><general>Springer-Verlag</general><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>FBQ</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>3V.</scope><scope>7QL</scope><scope>7SN</scope><scope>7T7</scope><scope>7TV</scope><scope>7U7</scope><scope>7WY</scope><scope>7WZ</scope><scope>7X7</scope><scope>7XB</scope><scope>87Z</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FRNLG</scope><scope>FYUFA</scope><scope>F~G</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>K9.</scope><scope>L.-</scope><scope>M0C</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7N</scope><scope>P64</scope><scope>PATMY</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>7X8</scope><scope>7ST</scope><scope>SOI</scope><scope>7SU</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20150401</creationdate><title>Extractive and oxidative removal of copper bound to humic acid in soil</title><author>Hwang, Bo-Ram ; Kim, Eun-Jung ; Yang, Jung-Seok ; Baek, Kitae</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c569t-8a979820f13344661923089d38af49909e3f1f6c83f2eafb7e19c4802141cfd53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Acetic acid</topic><topic>Acidic soils</topic><topic>Acids</topic><topic>Adsorption</topic><topic>Alkaline soils</topic><topic>Aquatic Pollution</topic><topic>Atmospheric Protection/Air Quality Control/Air Pollution</topic><topic>Catalysis</topic><topic>Chelating</topic><topic>Chelating agents</topic><topic>Chelating Agents - 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chemistry</topic><topic>Soil (material)</topic><topic>Soil contamination</topic><topic>Soil organic matter</topic><topic>Soil Pollutants - analysis</topic><topic>Soil pollution</topic><topic>Soil remediation</topic><topic>soil washing</topic><topic>Spectroscopy, Fourier Transform Infrared</topic><topic>Spectrum analysis</topic><topic>Waste Water Technology</topic><topic>Water Management</topic><topic>Water Pollution Control</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hwang, Bo-Ram</creatorcontrib><creatorcontrib>Kim, Eun-Jung</creatorcontrib><creatorcontrib>Yang, Jung-Seok</creatorcontrib><creatorcontrib>Baek, Kitae</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Access via ABI/INFORM (ProQuest)</collection><collection>ABI/INFORM Global (PDF only)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ABI/INFORM Global (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ABI/INFORM Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Natural Science Collection (ProQuest)</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Business Premium Collection (Alumni)</collection><collection>Health Research Premium Collection</collection><collection>ABI/INFORM Global (Corporate)</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Business Collection (Alumni Edition)</collection><collection>ProQuest Business Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ABI/INFORM Professional Advanced</collection><collection>ABI/INFORM Global</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database (ProQuest)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>ProQuest One Business</collection><collection>ProQuest One Business (Alumni)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>Environment Abstracts</collection><collection>Environment Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Environmental science and pollution research international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hwang, Bo-Ram</au><au>Kim, Eun-Jung</au><au>Yang, Jung-Seok</au><au>Baek, Kitae</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Extractive and oxidative removal of copper bound to humic acid in soil</atitle><jtitle>Environmental science and pollution research international</jtitle><stitle>Environ Sci Pollut Res</stitle><addtitle>Environ Sci Pollut Res Int</addtitle><date>2015-04-01</date><risdate>2015</risdate><volume>22</volume><issue>8</issue><spage>6077</spage><epage>6085</epage><pages>6077-6085</pages><issn>0944-1344</issn><eissn>1614-7499</eissn><abstract>Copper (Cu) is often found strongly bound to natural organic matter (NOM) in soil through the formation of strong Cu-NOM complexes. Therefore, in order to successfully remediate Cu-contaminated soils, effective removal of Cu bound to soil organic matter should be considered. In this study, we investigated soil washing methods for Cu removal from a synthetic Cu-contaminated model silica soil coated with humic acid (HA) and from field contaminated soil. Various reagents were studied to extract Cu bound to NOM, which included oxidant (H₂O₂), base (NaOH), and chelating agents (citric acid and ethylenediaminetetraacetic acid (EDTA)). Among the wash reagents, EDTA extracted Cu most effectively since EDTA formed very strong complexes with Cu, and Cu-HA complexes were transformed into Cu-EDTA complexes. NaOH extracted slightly less Cu compared to EDTA. HA was effectively extracted from the model soil under strongly alkaline conditions with NaOH, which seemed to concurrently release Cu bound to HA. However, chemical oxidation with H₂O₂was not effective at destroying Cu-HA complexes. Fourier transform infrared spectroscopy and elemental analysis revealed that chelating agents such as citrate and EDTA were adsorbed onto the model soil via possible complexation between HA and extraction agents. The extraction of Cu from a field contaminated soil sample was effective with chelating agents, while oxidative removal with H₂O₂and extractive removal with NaOH separated negligible amounts of Cu from the soil. Based on these results, Cu bound to organic matter in soil could be effectively removed by chelating agents, although remnant agents may remain in the soil.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>25388560</pmid><doi>10.1007/s11356-014-3810-y</doi><tpages>9</tpages></addata></record> |
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| ispartof | Environmental science and pollution research international, 2015-04, Vol.22 (8), p.6077-6085 |
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| subjects | Acetic acid Acidic soils Acids Adsorption Alkaline soils Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Catalysis Chelating Chelating agents Chelating Agents - chemistry citrates Citric Acid Contamination Copper Copper - analysis Copper - isolation & purification Earth and Environmental Science Ecotoxicology Edetic Acid EDTA EDTA (chelating agent) Environment Environmental Chemistry Environmental Health Extraction Fourier analysis Fourier transform infrared spectroscopy Fourier transforms Heavy metals Humic acids Humic Substances - analysis Hydrogen peroxide Hydrogen Peroxide - chemistry Hydroxyapatite Infrared spectroscopy Metals Methods Microscopy, Electron, Scanning Models, Chemical Organic matter Organic soils Oxidants Oxidation Oxidation-Reduction Oxidizing agents polluted soils Reagents Research Article Silica Silicon Dioxide Sodium hydroxide Sodium Hydroxide - chemistry Soil (material) Soil contamination Soil organic matter Soil Pollutants - analysis Soil pollution Soil remediation soil washing Spectroscopy, Fourier Transform Infrared Spectrum analysis Waste Water Technology Water Management Water Pollution Control |
| title | Extractive and oxidative removal of copper bound to humic acid in soil |
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