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Removal of metal(oi...
Removal of metal(oid)s from contaminated water using iron-coated peat sorbent
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- Kasiuliene, Alfroda (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Carabante, Ivan (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Bhattacharya, Prosun (author)
- KTH,Vatten- och miljöteknik,Department of Sustainable Development, Environmental Science and Engineering, Royal Institute of Technology, Teknikringen 76, SE-100 44, Stockholm, Sweden
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- Caporale, A.G. (author)
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100-80055, Portici, Italy
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- Adamo, P. (author)
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100-80055, Portici, Italy
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- Kumpiene, Jurate (author)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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(creator_code:org_t)
- Elsevier, 2018
- 2018
- English.
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In: Chemosphere. - : Elsevier. - 0045-6535 .- 1879-1298. ; 198, s. 290-296
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- This study aimed at combining iron and peat to produce a sorbent suitable for a simultaneous removal of cations and anions from a solution. Peat powder, an industrial residue, was coated with iron by immersing peat into iron salt solutions. The adsorption efficiency of the newly produced sorbent towards As, Cr, Cu and Zn was tested by means of batch adsorption experiments at a constant pH value of 5. Coating of Fe on peat significantly increased the adsorption of As (from <5% to 80%) and Cr (from <3% to 25%) in comparison to uncoated peat. Removal of cations on coated peat slightly decreased (by 10–15%), yet remained within acceptable range. Electron Microscopy combined with X-Ray Energy Dispersive Spectroscopy revealed that iron coating on the peat was rather homogenous and As and Cr were abundantly adsorbed on the surface. By contrast, Cu and Zn displayed a sparing distribution on the surface of the iron coated peat. These results indicate that iron-peat simultaneously target sufficient amounts of both cations and anions and can be used for a one-step treatment of contaminated groundwater.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Iron oxide
- Sorption
- Arsenic
- Metals
- Trace elements
- Copper
- Avfallsteknik
- Waste Science and Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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