Effect of additives on the remediation of arsenic and chromium co-contaminated soil by an electrokinetic-permeable reactive barrier
To enhance the remediation efficiency of arsenic (As) and chromium (Cr)co-contaminated soil, the effect of various combinations of reducing and chelating agents on the removal of As and Cr was studied in the present work by using electrokinetic technology coupled with a permeable reactive barrier (E...
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| Veröffentlicht in: | Environmental science and pollution research international 2022-02, Vol.29 (8), p.11966-11975 |
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| creator | Ma, Chunzi Li, Jiangpeng Xia, Wei Ding, Ying Zhang, Liting Xu, Yunfeng |
| description | To enhance the remediation efficiency of arsenic (As) and chromium (Cr)co-contaminated soil, the effect of various combinations of reducing and chelating agents on the removal of As and Cr was studied in the present work by using electrokinetic technology coupled with a permeable reactive barrier (EK-PRB). In an experiment with EK-PRB, reducing agents (ascorbic acid and citric acid) and chelating agents (EDTA-2Na) were applied together with CaAl-layered double hydroxide (CaAl-LDH) to pretreat As and Cr co-contaminated soil. The chelating agents increased the removal efficiency of As and Cr, while the reducing agent only improved As removal in co-contaminated soil. The best removal efficiencies of As and Cr were 41.2% and 46.8%, respectively. The reducing agents promoted the production of As(III) and enhanced the migration of As. However, a large amount of Cr(VI) was reduced to Cr(III), which affected the migration of Cr. Although the addition of chelating agents partly increased the migration of Cr(III), the removal of total chromium (TCr) still decreased. In this remediation system, a PRB can effectively capture and fix As and Cr. The results indicated that As was mainly adsorbed on the surface of CaAl-LDH, while the surface adsorption and intercalation of CaAl-LDH were the main mechanisms for Cr. |
| doi_str_mv | 10.1007/s11356-021-16357-1 |
| format | Article |
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In an experiment with EK-PRB, reducing agents (ascorbic acid and citric acid) and chelating agents (EDTA-2Na) were applied together with CaAl-layered double hydroxide (CaAl-LDH) to pretreat As and Cr co-contaminated soil. The chelating agents increased the removal efficiency of As and Cr, while the reducing agent only improved As removal in co-contaminated soil. The best removal efficiencies of As and Cr were 41.2% and 46.8%, respectively. The reducing agents promoted the production of As(III) and enhanced the migration of As. However, a large amount of Cr(VI) was reduced to Cr(III), which affected the migration of Cr. Although the addition of chelating agents partly increased the migration of Cr(III), the removal of total chromium (TCr) still decreased. In this remediation system, a PRB can effectively capture and fix As and Cr. The results indicated that As was mainly adsorbed on the surface of CaAl-LDH, while the surface adsorption and intercalation of CaAl-LDH were the main mechanisms for Cr.</description><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-021-16357-1</identifier><identifier>PMID: 34558049</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Additives ; adsorption ; Aquatic Pollution ; Arsenic ; Ascorbic acid ; Atmospheric Protection/Air Quality Control/Air Pollution ; Chelating agents ; Chelation ; Chromium ; Chromium - analysis ; Citric acid ; Earth and Environmental Science ; Ecotoxicology ; Electrokinetics ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental Restoration and Remediation ; Environmental science ; Ethylenediaminetetraacetic acids ; Hydroxides ; Kinetics ; Permeable reactive barriers ; Pollution prevention ; Reagents ; Reducing agents ; Remediation ; Research Article ; Soil ; Soil contamination ; Soil permeability ; Soil Pollutants - analysis ; Soil pollution ; Soil remediation ; Soils ; Trivalent chromium ; Waste Water Technology ; Water Management ; Water Pollution Control</subject><ispartof>Environmental science and pollution research international, 2022-02, Vol.29 (8), p.11966-11975</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021</rights><rights>2021. 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In an experiment with EK-PRB, reducing agents (ascorbic acid and citric acid) and chelating agents (EDTA-2Na) were applied together with CaAl-layered double hydroxide (CaAl-LDH) to pretreat As and Cr co-contaminated soil. The chelating agents increased the removal efficiency of As and Cr, while the reducing agent only improved As removal in co-contaminated soil. The best removal efficiencies of As and Cr were 41.2% and 46.8%, respectively. The reducing agents promoted the production of As(III) and enhanced the migration of As. However, a large amount of Cr(VI) was reduced to Cr(III), which affected the migration of Cr. Although the addition of chelating agents partly increased the migration of Cr(III), the removal of total chromium (TCr) still decreased. In this remediation system, a PRB can effectively capture and fix As and Cr. The results indicated that As was mainly adsorbed on the surface of CaAl-LDH, while the surface adsorption and intercalation of CaAl-LDH were the main mechanisms for Cr.</description><subject>Additives</subject><subject>adsorption</subject><subject>Aquatic Pollution</subject><subject>Arsenic</subject><subject>Ascorbic acid</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Chelating agents</subject><subject>Chelation</subject><subject>Chromium</subject><subject>Chromium - analysis</subject><subject>Citric acid</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Electrokinetics</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental Restoration and Remediation</subject><subject>Environmental science</subject><subject>Ethylenediaminetetraacetic acids</subject><subject>Hydroxides</subject><subject>Kinetics</subject><subject>Permeable reactive barriers</subject><subject>Pollution prevention</subject><subject>Reagents</subject><subject>Reducing agents</subject><subject>Remediation</subject><subject>Research Article</subject><subject>Soil</subject><subject>Soil contamination</subject><subject>Soil permeability</subject><subject>Soil Pollutants - analysis</subject><subject>Soil pollution</subject><subject>Soil remediation</subject><subject>Soils</subject><subject>Trivalent chromium</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>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqFkU2L1TAUhoMoznX0D7iQgBs30ZwkTdqlDOMHDLjRdUnTEydjm1yTVJi1f9zUOyq40FUI5znPy-El5Cnwl8C5eVUAZKcZF8BAy84wuEcOoEExo4bhPjnwQSkGUqkz8qiUG84FH4R5SM6k6rqeq-FAvl96j67S5Kmd51DDNyw0RVqvkWZccQ62hvbf57lgDI7aOFN3ndMatpW6xFyK1a4h2oozLSksdLptEMWliXP6EiLW4NgR84p2WnavdXsQnWzOAfNj8sDbpeCTu_ecfHpz-fHiHbv68Pb9xesr5hTvKxNmmjho3UvRI_QwSbTCeO56sN7g7PuuiW2PznnUMEzzjlkA0WuhPZfn5MXJe8zp64aljmsoDpfFRkxbGYWWWslmNv9HO6O1GlQnG_r8L_QmbTm2Q5pQSMFh0Hu2OFEup1Iy-vGYw2rz7Qh83NscT22Orc3xZ5sjtKVnd-ptalX8XvlVXwPkCShtFD9j_pP9D-0PNyqrzw</recordid><startdate>20220201</startdate><enddate>20220201</enddate><creator>Ma, Chunzi</creator><creator>Li, Jiangpeng</creator><creator>Xia, Wei</creator><creator>Ding, Ying</creator><creator>Zhang, Liting</creator><creator>Xu, Yunfeng</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><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>AEUYN</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>7S9</scope><scope>L.6</scope></search><sort><creationdate>20220201</creationdate><title>Effect of additives on the remediation of arsenic and chromium co-contaminated soil by an electrokinetic-permeable reactive barrier</title><author>Ma, Chunzi ; Li, Jiangpeng ; Xia, Wei ; Ding, Ying ; Zhang, Liting ; Xu, Yunfeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c408t-27bb01668328e181b3ea27f0c81af7edf85eaca8eccfe619bd8e18a1128626f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Additives</topic><topic>adsorption</topic><topic>Aquatic Pollution</topic><topic>Arsenic</topic><topic>Ascorbic acid</topic><topic>Atmospheric Protection/Air Quality Control/Air Pollution</topic><topic>Chelating agents</topic><topic>Chelation</topic><topic>Chromium</topic><topic>Chromium - 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Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Environmental science and pollution research international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Chunzi</au><au>Li, Jiangpeng</au><au>Xia, Wei</au><au>Ding, Ying</au><au>Zhang, Liting</au><au>Xu, Yunfeng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of additives on the remediation of arsenic and chromium co-contaminated soil by an electrokinetic-permeable reactive barrier</atitle><jtitle>Environmental science and pollution research international</jtitle><stitle>Environ Sci Pollut Res</stitle><addtitle>Environ Sci Pollut Res Int</addtitle><date>2022-02-01</date><risdate>2022</risdate><volume>29</volume><issue>8</issue><spage>11966</spage><epage>11975</epage><pages>11966-11975</pages><issn>0944-1344</issn><eissn>1614-7499</eissn><abstract>To enhance the remediation efficiency of arsenic (As) and chromium (Cr)co-contaminated soil, the effect of various combinations of reducing and chelating agents on the removal of As and Cr was studied in the present work by using electrokinetic technology coupled with a permeable reactive barrier (EK-PRB). In an experiment with EK-PRB, reducing agents (ascorbic acid and citric acid) and chelating agents (EDTA-2Na) were applied together with CaAl-layered double hydroxide (CaAl-LDH) to pretreat As and Cr co-contaminated soil. The chelating agents increased the removal efficiency of As and Cr, while the reducing agent only improved As removal in co-contaminated soil. The best removal efficiencies of As and Cr were 41.2% and 46.8%, respectively. The reducing agents promoted the production of As(III) and enhanced the migration of As. However, a large amount of Cr(VI) was reduced to Cr(III), which affected the migration of Cr. Although the addition of chelating agents partly increased the migration of Cr(III), the removal of total chromium (TCr) still decreased. In this remediation system, a PRB can effectively capture and fix As and Cr. The results indicated that As was mainly adsorbed on the surface of CaAl-LDH, while the surface adsorption and intercalation of CaAl-LDH were the main mechanisms for Cr.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>34558049</pmid><doi>10.1007/s11356-021-16357-1</doi><tpages>10</tpages></addata></record> |
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| subjects | Additives adsorption Aquatic Pollution Arsenic Ascorbic acid Atmospheric Protection/Air Quality Control/Air Pollution Chelating agents Chelation Chromium Chromium - analysis Citric acid Earth and Environmental Science Ecotoxicology Electrokinetics Environment Environmental Chemistry Environmental Health Environmental Restoration and Remediation Environmental science Ethylenediaminetetraacetic acids Hydroxides Kinetics Permeable reactive barriers Pollution prevention Reagents Reducing agents Remediation Research Article Soil Soil contamination Soil permeability Soil Pollutants - analysis Soil pollution Soil remediation Soils Trivalent chromium Waste Water Technology Water Management Water Pollution Control |
| title | Effect of additives on the remediation of arsenic and chromium co-contaminated soil by an electrokinetic-permeable reactive barrier |
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