Phytoextraction of Cr(VI) from soil using Portulaca oleracea

Ayman H. Alyazouri, Roger A. Jewsbury, Hassan A. Tayim, Paul N. Humphreys, Mohammad H. Al-sayah

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Cr(VI) represents an environmental challenge in both soil and water as it is soluble and bioavailable over a wide range of pH. In previous investigations, Portulaca oleracea (a plant local to the United Arab Emirates (UAE)) demonstrated particular ability for the phytoextraction of Cr(VI) from calcareous soil of the UAE. In this publication, the results of the evaluation of P. oleracea phytoextraction of Cr(VI) from UAE soil at higher concentrations are reported. P. oleracea was exposed to nine different concentrations of Cr(VI) in soil from 0 to 400 mg kg−1. The uptake of Cr(VI) increased as its concentration in soil increased between 50 and 400 mg kg−1, with the most efficient removal in the range from 150 to 200 mg kg−1. The total chromium concentrations exceeded 4600 mg kg−1 in roots and 1400 mg kg−1 in stems, confirming the role of P. oleracea as an effective Cr(VI) accumulator. More than 95% of the accumulated Cr(VI) was reduced to the less toxic Cr(III) within the plant.
Original languageEnglish
Pages (from-to)1338-1347
Number of pages10
JournalToxicological and Environmental Chemistry
Volume95
Issue number8
DOIs
Publication statusPublished - 2013

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Portulaca
Soil
Soils
United Arab Emirates
soil
calcareous soil
chromium
stem
Chromium
Poisons
chromium hexavalent ion
Water

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Alyazouri, Ayman H. ; Jewsbury, Roger A. ; Tayim, Hassan A. ; Humphreys, Paul N. ; Al-sayah, Mohammad H. / Phytoextraction of Cr(VI) from soil using Portulaca oleracea. In: Toxicological and Environmental Chemistry. 2013 ; Vol. 95, No. 8. pp. 1338-1347.
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abstract = "Cr(VI) represents an environmental challenge in both soil and water as it is soluble and bioavailable over a wide range of pH. In previous investigations, Portulaca oleracea (a plant local to the United Arab Emirates (UAE)) demonstrated particular ability for the phytoextraction of Cr(VI) from calcareous soil of the UAE. In this publication, the results of the evaluation of P. oleracea phytoextraction of Cr(VI) from UAE soil at higher concentrations are reported. P. oleracea was exposed to nine different concentrations of Cr(VI) in soil from 0 to 400 mg kg−1. The uptake of Cr(VI) increased as its concentration in soil increased between 50 and 400 mg kg−1, with the most efficient removal in the range from 150 to 200 mg kg−1. The total chromium concentrations exceeded 4600 mg kg−1 in roots and 1400 mg kg−1 in stems, confirming the role of P. oleracea as an effective Cr(VI) accumulator. More than 95{\%} of the accumulated Cr(VI) was reduced to the less toxic Cr(III) within the plant.",
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Phytoextraction of Cr(VI) from soil using Portulaca oleracea. / Alyazouri, Ayman H.; Jewsbury, Roger A.; Tayim, Hassan A.; Humphreys, Paul N.; Al-sayah, Mohammad H.

In: Toxicological and Environmental Chemistry, Vol. 95, No. 8, 2013, p. 1338-1347.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Phytoextraction of Cr(VI) from soil using Portulaca oleracea

AU - Alyazouri, Ayman H.

AU - Jewsbury, Roger A.

AU - Tayim, Hassan A.

AU - Humphreys, Paul N.

AU - Al-sayah, Mohammad H.

N1 - Authors A H. Alyazouri and R. A. Jewsbury were at Huddersfield when output was published but not now - how do we affiliate them?

PY - 2013

Y1 - 2013

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AB - Cr(VI) represents an environmental challenge in both soil and water as it is soluble and bioavailable over a wide range of pH. In previous investigations, Portulaca oleracea (a plant local to the United Arab Emirates (UAE)) demonstrated particular ability for the phytoextraction of Cr(VI) from calcareous soil of the UAE. In this publication, the results of the evaluation of P. oleracea phytoextraction of Cr(VI) from UAE soil at higher concentrations are reported. P. oleracea was exposed to nine different concentrations of Cr(VI) in soil from 0 to 400 mg kg−1. The uptake of Cr(VI) increased as its concentration in soil increased between 50 and 400 mg kg−1, with the most efficient removal in the range from 150 to 200 mg kg−1. The total chromium concentrations exceeded 4600 mg kg−1 in roots and 1400 mg kg−1 in stems, confirming the role of P. oleracea as an effective Cr(VI) accumulator. More than 95% of the accumulated Cr(VI) was reduced to the less toxic Cr(III) within the plant.

KW - Phytoremediation

KW - phytoextraction

KW - hexavalent chromium

KW - Cr(VI)

KW - Portulaca oleracea

KW - UAE soil

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U2 - 10.1080/02772248.2013.877463

DO - 10.1080/02772248.2013.877463

M3 - Article

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JO - Toxicological and Environmental Chemistry

JF - Toxicological and Environmental Chemistry

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