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Influence of electrical fields (AC and DC) on phytoremediation of metal polluted soils with rapeseed (Brassica napus) and tobacco (Nicotiana tabacum).
Chemosphere. 2011 Apr; 83(3):318-26.C

Abstract

The combined use of electrokinetic remediation and phytoremediation to decontaminate soil polluted with heavy metals has been demonstrated in a laboratory-scale experiment. The plants species selected were rapeseed and tobacco. Three kinds of soil were used: un-contaminated soil from forest area (S1), artificially contaminated soil with 15mgkg(-1) Cd (S2) and multi-contaminated soil with Cd, Zn and Pb from an industrial area (S3). Three treatment conditions were applied to the plants growing in the experimental vessels: control (no electrical field), alternating current electrical field (AC, 1Vcm(-1)) and direct current electrical field (DC, 1Vcm(-1)) with switching polarity every 3h. The electrical fields were applied for 30d for rapeseed and 90d for tobacco, each experiment had three replicates. After a total of 90d growth for rapeseed and of 180d for tobacco, the plants were harvested. The pH variation from anode to cathode was eliminated by switching the polarity of the DC field. The plants reacted differently under the applied electrical field. Rapeseed biomass was enhanced under the AC field and no negative effect was found under DC field. However, no enhancement of the tobacco biomass under the AC treatment was found. The DC field had a negative influence on biomass production on tobacco plants. In general, Cd content was higher in both species growing in S2 treated with AC field compared to the control. Metal uptake (Cd, Cu, Zn and Pb) per rapeseed plant shoot was enhanced by the application of AC field in all soils.

Authors+Show Affiliations

Institute of Environmental Technology (EUTEC), University of Applied Sciences Emden/Leer, Constantiaplatz 4, D-26723 Emden, Germany. biran_82@yahoo.com.cnNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

21237480

Citation

Bi, Ran, et al. "Influence of Electrical Fields (AC and DC) On Phytoremediation of Metal Polluted Soils With Rapeseed (Brassica Napus) and Tobacco (Nicotiana Tabacum)." Chemosphere, vol. 83, no. 3, 2011, pp. 318-26.
Bi R, Schlaak M, Siefert E, et al. Influence of electrical fields (AC and DC) on phytoremediation of metal polluted soils with rapeseed (Brassica napus) and tobacco (Nicotiana tabacum). Chemosphere. 2011;83(3):318-26.
Bi, R., Schlaak, M., Siefert, E., Lord, R., & Connolly, H. (2011). Influence of electrical fields (AC and DC) on phytoremediation of metal polluted soils with rapeseed (Brassica napus) and tobacco (Nicotiana tabacum). Chemosphere, 83(3), 318-26. https://doi.org/10.1016/j.chemosphere.2010.12.052
Bi R, et al. Influence of Electrical Fields (AC and DC) On Phytoremediation of Metal Polluted Soils With Rapeseed (Brassica Napus) and Tobacco (Nicotiana Tabacum). Chemosphere. 2011;83(3):318-26. PubMed PMID: 21237480.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of electrical fields (AC and DC) on phytoremediation of metal polluted soils with rapeseed (Brassica napus) and tobacco (Nicotiana tabacum). AU - Bi,Ran, AU - Schlaak,Michael, AU - Siefert,Eike, AU - Lord,Richard, AU - Connolly,Helen, Y1 - 2011/01/14/ PY - 2010/08/02/received PY - 2010/12/08/revised PY - 2010/12/09/accepted PY - 2011/1/18/entrez PY - 2011/1/18/pubmed PY - 2011/5/12/medline SP - 318 EP - 26 JF - Chemosphere JO - Chemosphere VL - 83 IS - 3 N2 - The combined use of electrokinetic remediation and phytoremediation to decontaminate soil polluted with heavy metals has been demonstrated in a laboratory-scale experiment. The plants species selected were rapeseed and tobacco. Three kinds of soil were used: un-contaminated soil from forest area (S1), artificially contaminated soil with 15mgkg(-1) Cd (S2) and multi-contaminated soil with Cd, Zn and Pb from an industrial area (S3). Three treatment conditions were applied to the plants growing in the experimental vessels: control (no electrical field), alternating current electrical field (AC, 1Vcm(-1)) and direct current electrical field (DC, 1Vcm(-1)) with switching polarity every 3h. The electrical fields were applied for 30d for rapeseed and 90d for tobacco, each experiment had three replicates. After a total of 90d growth for rapeseed and of 180d for tobacco, the plants were harvested. The pH variation from anode to cathode was eliminated by switching the polarity of the DC field. The plants reacted differently under the applied electrical field. Rapeseed biomass was enhanced under the AC field and no negative effect was found under DC field. However, no enhancement of the tobacco biomass under the AC treatment was found. The DC field had a negative influence on biomass production on tobacco plants. In general, Cd content was higher in both species growing in S2 treated with AC field compared to the control. Metal uptake (Cd, Cu, Zn and Pb) per rapeseed plant shoot was enhanced by the application of AC field in all soils. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/21237480/Influence_of_electrical_fields__AC_and_DC__on_phytoremediation_of_metal_polluted_soils_with_rapeseed__Brassica_napus__and_tobacco__Nicotiana_tabacum__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(10)01457-8 DB - PRIME DP - Unbound Medicine ER -