A preliminary study on leachability of chromium from a contaminated site

A preliminary study on leachability of chromium from a contaminated site

In the present article, chromite ore processing residue (COPR) and soil samples were collected from a chromium contaminated site in Tamil Nadu State, India. Around 155.02 and 28.01 mg g−1 of Cr(VI) was present in COPR and soil samples, respectively. Leachability studies were carried out to assess th...

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Veröffentlicht in:Environmental progress 2013-12, Vol.32 (4), p.1096-1100
Hauptverfasser: Kanchinadham, Sri Bala Kameswari, Loganathan, Vidhya Devi, Kalyanaraman, Chitra
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chromite ore processing residue
hexavalent chromium
leachability and trivalent chromium
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creator Kanchinadham, Sri Bala Kameswari
Loganathan, Vidhya Devi
Kalyanaraman, Chitra
description In the present article, chromite ore processing residue (COPR) and soil samples were collected from a chromium contaminated site in Tamil Nadu State, India. Around 155.02 and 28.01 mg g−1 of Cr(VI) was present in COPR and soil samples, respectively. Leachability studies were carried out to assess the leachability of Cr(VI) and Cr(III) from COPR and soil samples following the toxicity characteristic leaching procedure (TCLP) test protocol using (i) acetic acid and (ii) water as leaching medium. Cr(VI) had leached out in both the mediums, whereas Cr(III) leached only in acetic acid as leaching medium since Cr(III) is insoluble at pH > 6. TCLP test results are requisite to assess the extent of leaching of chromium from the contaminated soil or COPR and are a helpful tool for implementation of remediation measures to avoid further contamination. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 1096–1100, 2013
doi_str_mv 10.1002/ep.11722
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subjects chromite ore processing residue
hexavalent chromium
leachability and trivalent chromium
title A preliminary study on leachability of chromium from a contaminated site
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