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Phytoextraction of cadmium and zinc from arable soils amended with sewage sludge using Thlaspi caerulescens: development of a predictive model.
Environ Pollut. 2007 Dec; 150(3):363-72.EP

Abstract

The objectives of this study were to assess the potential for using Thlaspi caerulescens as a phytoextraction plant and develop a user-advice model, which can predict the frequency of phytoextraction operation required under prescribed conditions. Pot and field trials were conducted using soil collected from a dedicated sewage sludge disposal facility. Soil amendments (sulphuric acid, potassium chloride and EDTA) intended to increase Cd solubility were also tested. Predictive models of Cd and Zn uptake were developed which were able to reproduce the observed pH-dependence of Cd uptake with an apparent maximum around pH 6. Chemical treatments did not significantly increase the uptake of Cd. The periodic use of phytoextraction with T. caerulescens to maintain soils below statutory metal concentration limits, when modern sewage sludges are repeatedly applied, seems very attractive given the non-intrusive and cost-effective nature of the process. The major limitations lie with the large-scale husbandry of T. caerulescens.

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Authors+Show Affiliations

Maxted AP
School of Biosciences, University of Nottingham, Biology Building, University Park, Nottingham NG7 2RD, UK.
Black CR
No affiliation info available
West HM
No affiliation info available
Crout NM
No affiliation info available
McGrath SP
No affiliation info available
Young SD
No affiliation info available

MeSH

Biodegradation, EnvironmentalBiomassCadmiumChelating AgentsEdetic AcidEnglandHydrogen-Ion ConcentrationMetals, HeavyModels, TheoreticalPotassium ChlorideSewageSoil PollutantsSulfuric AcidsThlaspiZinc

Pub Type(s)

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

Language

eng

PubMed ID

17379365

Citation

Maxted, A P., et al. "Phytoextraction of Cadmium and Zinc From Arable Soils Amended With Sewage Sludge Using Thlaspi Caerulescens: Development of a Predictive Model." Environmental Pollution (Barking, Essex : 1987), vol. 150, no. 3, 2007, pp. 363-72.
Maxted AP, Black CR, West HM, et al. Phytoextraction of cadmium and zinc from arable soils amended with sewage sludge using Thlaspi caerulescens: development of a predictive model. Environ Pollut. 2007;150(3):363-72.
Maxted, A. P., Black, C. R., West, H. M., Crout, N. M., McGrath, S. P., & Young, S. D. (2007). Phytoextraction of cadmium and zinc from arable soils amended with sewage sludge using Thlaspi caerulescens: development of a predictive model. Environmental Pollution (Barking, Essex : 1987), 150(3), 363-72.
Maxted AP, et al. Phytoextraction of Cadmium and Zinc From Arable Soils Amended With Sewage Sludge Using Thlaspi Caerulescens: Development of a Predictive Model. Environ Pollut. 2007;150(3):363-72. PubMed PMID: 17379365.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytoextraction of cadmium and zinc from arable soils amended with sewage sludge using Thlaspi caerulescens: development of a predictive model. AU - Maxted,A P, AU - Black,C R, AU - West,H M, AU - Crout,N M J, AU - McGrath,S P, AU - Young,S D, Y1 - 2007/03/26/ PY - 2006/08/23/received PY - 2007/01/21/revised PY - 2007/01/27/accepted PY - 2007/3/24/pubmed PY - 2008/5/13/medline PY - 2007/3/24/entrez SP - 363 EP - 72 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 150 IS - 3 N2 - The objectives of this study were to assess the potential for using Thlaspi caerulescens as a phytoextraction plant and develop a user-advice model, which can predict the frequency of phytoextraction operation required under prescribed conditions. Pot and field trials were conducted using soil collected from a dedicated sewage sludge disposal facility. Soil amendments (sulphuric acid, potassium chloride and EDTA) intended to increase Cd solubility were also tested. Predictive models of Cd and Zn uptake were developed which were able to reproduce the observed pH-dependence of Cd uptake with an apparent maximum around pH 6. Chemical treatments did not significantly increase the uptake of Cd. The periodic use of phytoextraction with T. caerulescens to maintain soils below statutory metal concentration limits, when modern sewage sludges are repeatedly applied, seems very attractive given the non-intrusive and cost-effective nature of the process. The major limitations lie with the large-scale husbandry of T. caerulescens. SN - 0269-7491 UR - https://www.unboundmedicine.com/medline/citation/17379365/Phytoextraction_of_cadmium_and_zinc_from_arable_soils_amended_with_sewage_sludge_using_Thlaspi_caerulescens:_development_of_a_predictive_model_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(07)00075-9 DB - PRIME DP - Unbound Medicine ER -