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Heavy metal immobilization by chemical amendments in a polluted soil and influence on white lupin growth.
Chemosphere. 2005 Jul; 60(3):365-71.C

Abstract

The effects of chemical amendments (zeolite, compost and calcium hydroxide) on the solubility of Pb, Cd and Zn in a contaminated soil were determined. The polluted soil was from the Southwest Sardinia, Italy. It showed very high total concentrations of Pb (19663 mgkg(-1) d.m.), Cd (196 mgkg(-1) d.m.) and Zn (14667 mgkg(-1) d.m.). The growth and uptake of heavy metals by white lupin (Lupinus albus L., cv. Multitalia) in amended soils were also studied in a pot experiment under greenhouse conditions. Results showed that the amendments increased the residual fraction of heavy metals in the soils, and decreased the heavy metals uptake by white lupin compared with the unamended control. Among the three amendments, compost and Ca(OH)2 were the most efficient at reducing Pb and Zn uptake, while zeolite was the most efficient at reducing Cd uptake by the plants. White lupin growth was better in amended soils than in unamended control. The above ground biomass increased with a factor 1.8 (soil amended with zeolite), 3.6 (soil amended with compost) and 3.1 (soil amended with Ca(OH)2) with respect to unamended soil. The roots biomass increased with a factor 1.4 (soil amended with zeolite), 5.6 (soil amended with compost) and 4.8 (soil amended with Ca(OH)2). Results obtained suggest that the soil chemical treatment improved the performance of crops by reducing bioavailability of metals in the soils. However it would be therefore interesting to find a suitable mixture of these amendments to contemporarily immobilize the three main pollutants in the polluted soils.

Authors+Show Affiliations

Dipartimento di Scienze Ambientali Agrarie e Biotecnologie Agro, Alimentari, Sez. Chimica Agraria ed Ambientale, Università di Sassari, Viale Italia 39, 07100 Sassari, Italy. castaldi@uniss.itNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

15924955

Citation

Castaldi, Paola, et al. "Heavy Metal Immobilization By Chemical Amendments in a Polluted Soil and Influence On White Lupin Growth." Chemosphere, vol. 60, no. 3, 2005, pp. 365-71.
Castaldi P, Santona L, Melis P. Heavy metal immobilization by chemical amendments in a polluted soil and influence on white lupin growth. Chemosphere. 2005;60(3):365-71.
Castaldi, P., Santona, L., & Melis, P. (2005). Heavy metal immobilization by chemical amendments in a polluted soil and influence on white lupin growth. Chemosphere, 60(3), 365-71.
Castaldi P, Santona L, Melis P. Heavy Metal Immobilization By Chemical Amendments in a Polluted Soil and Influence On White Lupin Growth. Chemosphere. 2005;60(3):365-71. PubMed PMID: 15924955.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heavy metal immobilization by chemical amendments in a polluted soil and influence on white lupin growth. AU - Castaldi,Paola, AU - Santona,Laura, AU - Melis,Pietro, Y1 - 2005/01/21/ PY - 2004/07/16/received PY - 2004/11/25/revised PY - 2004/11/29/accepted PY - 2005/6/1/pubmed PY - 2005/8/9/medline PY - 2005/6/1/entrez SP - 365 EP - 71 JF - Chemosphere JO - Chemosphere VL - 60 IS - 3 N2 - The effects of chemical amendments (zeolite, compost and calcium hydroxide) on the solubility of Pb, Cd and Zn in a contaminated soil were determined. The polluted soil was from the Southwest Sardinia, Italy. It showed very high total concentrations of Pb (19663 mgkg(-1) d.m.), Cd (196 mgkg(-1) d.m.) and Zn (14667 mgkg(-1) d.m.). The growth and uptake of heavy metals by white lupin (Lupinus albus L., cv. Multitalia) in amended soils were also studied in a pot experiment under greenhouse conditions. Results showed that the amendments increased the residual fraction of heavy metals in the soils, and decreased the heavy metals uptake by white lupin compared with the unamended control. Among the three amendments, compost and Ca(OH)2 were the most efficient at reducing Pb and Zn uptake, while zeolite was the most efficient at reducing Cd uptake by the plants. White lupin growth was better in amended soils than in unamended control. The above ground biomass increased with a factor 1.8 (soil amended with zeolite), 3.6 (soil amended with compost) and 3.1 (soil amended with Ca(OH)2) with respect to unamended soil. The roots biomass increased with a factor 1.4 (soil amended with zeolite), 5.6 (soil amended with compost) and 4.8 (soil amended with Ca(OH)2). Results obtained suggest that the soil chemical treatment improved the performance of crops by reducing bioavailability of metals in the soils. However it would be therefore interesting to find a suitable mixture of these amendments to contemporarily immobilize the three main pollutants in the polluted soils. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/15924955/Heavy_metal_immobilization_by_chemical_amendments_in_a_polluted_soil_and_influence_on_white_lupin_growth_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(04)01206-8 DB - PRIME DP - Unbound Medicine ER -