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Electrokinetic enhancement on phytoremediation in Zn, Pb, Cu and Cd contaminated soil using potato plants.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2008 Jul 01; 43(8):926-33.JE

Abstract

The use of a combination of electrokinetic remediation and phytoremediation to decontaminate soil polluted with heavy metals has been demonstrated in a laboratory-scale experiment. Potato tubers were planted in plastic vessels filled with Zn, Pb, Cu and Cd contaminated soil and grown in a greenhouse. Three of these vessels were treated with direct current electric field (DC), three with alternative current (AC) and three remained untreated as control vessels. The soil pH varied from anode to cathode with a minimum of pH 3 near the anode and a maximum of pH 8 near the cathode in the DC treated soil profile. There was an accumulation of Zn, Cu and Cd at about 12 cm distance from anode when soil pH was 5 in the DC treated soil profile. There was no significant metal redistribution and pH variation between anode and cathode in the AC soil profile. The biomass production of the plants was 72% higher under AC treatment and 27% lower under DC treatment compared to the control. Metal accumulation was generally higher in the plant roots treated with electrical fields than the control. The overall metal uptake in plant shoots was lower under DC treatment compared to AC treatment and control, although there was a higher accumulation of Zn and Cu in the plant roots treated with electrical fields. The Zn uptake in plant shoots under AC treatment was higher compared to the control and DC treatment. Zn and Cu accumulation in the plant roots under AC and DC treatment was similar, and both were higher comparing to control. Cd content in plant roots under all three treatments was found to be higher than that in the soil. The Pb accumulation in the roots and the uptake into the shoots was lower compared to its content in the soil.

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Authors+Show Affiliations

Aboughalma H
Institute of Environmental Technology (EUTEC), University of Applied Sciences FHOOW, Emden, Germany.
Bi R
No affiliation info available
Schlaak M
No affiliation info available

MeSH

Biodegradation, EnvironmentalCadmiumCopperElectrochemistryHydrogen-Ion ConcentrationLeadSoil PollutantsSolanum tuberosumZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18569305

Citation

Aboughalma, Hanssan, et al. "Electrokinetic Enhancement On Phytoremediation in Zn, Pb, Cu and Cd Contaminated Soil Using Potato Plants." Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering, vol. 43, no. 8, 2008, pp. 926-33.
Aboughalma H, Bi R, Schlaak M. Electrokinetic enhancement on phytoremediation in Zn, Pb, Cu and Cd contaminated soil using potato plants. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2008;43(8):926-33.
Aboughalma, H., Bi, R., & Schlaak, M. (2008). Electrokinetic enhancement on phytoremediation in Zn, Pb, Cu and Cd contaminated soil using potato plants. Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering, 43(8), 926-33. https://doi.org/10.1080/10934520801974459
Aboughalma H, Bi R, Schlaak M. Electrokinetic Enhancement On Phytoremediation in Zn, Pb, Cu and Cd Contaminated Soil Using Potato Plants. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2008 Jul 1;43(8):926-33. PubMed PMID: 18569305.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrokinetic enhancement on phytoremediation in Zn, Pb, Cu and Cd contaminated soil using potato plants. AU - Aboughalma,Hanssan, AU - Bi,Ran, AU - Schlaak,Michael, PY - 2008/6/24/pubmed PY - 2008/9/23/medline PY - 2008/6/24/entrez SP - 926 EP - 33 JF - Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering JO - J Environ Sci Health A Tox Hazard Subst Environ Eng VL - 43 IS - 8 N2 - The use of a combination of electrokinetic remediation and phytoremediation to decontaminate soil polluted with heavy metals has been demonstrated in a laboratory-scale experiment. Potato tubers were planted in plastic vessels filled with Zn, Pb, Cu and Cd contaminated soil and grown in a greenhouse. Three of these vessels were treated with direct current electric field (DC), three with alternative current (AC) and three remained untreated as control vessels. The soil pH varied from anode to cathode with a minimum of pH 3 near the anode and a maximum of pH 8 near the cathode in the DC treated soil profile. There was an accumulation of Zn, Cu and Cd at about 12 cm distance from anode when soil pH was 5 in the DC treated soil profile. There was no significant metal redistribution and pH variation between anode and cathode in the AC soil profile. The biomass production of the plants was 72% higher under AC treatment and 27% lower under DC treatment compared to the control. Metal accumulation was generally higher in the plant roots treated with electrical fields than the control. The overall metal uptake in plant shoots was lower under DC treatment compared to AC treatment and control, although there was a higher accumulation of Zn and Cu in the plant roots treated with electrical fields. The Zn uptake in plant shoots under AC treatment was higher compared to the control and DC treatment. Zn and Cu accumulation in the plant roots under AC and DC treatment was similar, and both were higher comparing to control. Cd content in plant roots under all three treatments was found to be higher than that in the soil. The Pb accumulation in the roots and the uptake into the shoots was lower compared to its content in the soil. SN - 1093-4529 UR - https://www.unboundmedicine.com/medline/citation/18569305/Electrokinetic_enhancement_on_phytoremediation_in_Zn_Pb_Cu_and_Cd_contaminated_soil_using_potato_plants_ L2 - https://www.tandfonline.com/doi/full/10.1080/10934520801974459 DB - PRIME DP - Unbound Medicine ER -