• Home
  • Search Results
  • Is vetiver grass of interest for the remediation of Cu and Cd to protect marketing gardens in Burkina Faso?

Is vetiver grass of interest for the remediation of Cu and Cd to protect marketing gardens in Burkina Faso?

Chemosphere (2014-07-30)
Norbert Ondo Zue Abaga, Sylvie Dousset, Saliou Mbengue, Colette Munier-Lamy
ABSTRACT

In Burkina-Faso, urban vegetable agriculture is often characterized by urban solid waste fertilizer inputs containing heavy metals such as Cu and Cd. Thus, the relevance of surrounding urban vegetable plots with vetiver hedges to reduce environmental pollution by Cu and Cd was investigated by adsorption studies and pot experiments. Vetiver biomass, its metal contents and, its total and MgCl2 extractable soil metals were monitored over 6months in the presence of a mixture of metal at two concentrations: 2-10 and 100-500mgkg(-1), for Cd and Cu, respectively. The Freundlich adsorption coefficient (Kf) values increased after vetiver growth and were significantly higher for vertisol than for lixisol. After 6months, the vetiver that was grown on lixisol accumulated more metal, increasing up to 4635mgkg(-1) for Cu and to 21.8mgkg(-1) for Cd, than did the vetiver that was grown on vertisol, increasing up to 1534mgkg(-1) for Cu and to 7.2mgkg(-1) for Cd. The metal bioconcentration factor, which was significantly higher for Cd, increased with the applied concentration and ranged from 1.6 to 14 for Cu and from 2.3 to 22 for Cd. Additionally, the translocation factors were higher for Cd (0.38-7.3) than for Cu (0.07-2.6), and the translocation was easiest from lixisol than from vertisol. Thus our results demonstrate the ability of vetiver for Cu and Cd phytoremediation in Burkina Faso soils. Nevertheless, these results should be confirmed across the field to advocate the establishment of vetiver hedges.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Copper, powder, <425 μm, 99.5% trace metals basis
Sigma-Aldrich
Copper, foil, thickness 0.25 mm, 99.98% trace metals basis
Sigma-Aldrich
Copper, powder, 99.999% trace metals basis
Sigma-Aldrich
Cadmium, powder, −100 mesh, 99.5% trace metals basis
Sigma-Aldrich
Copper, wire, diam. 1.0 mm, ≥99.9%
Sigma-Aldrich
Copper, ACS reagent, granular, 10-40 mesh, ≥99.90%
Sigma-Aldrich
Copper, nanopowder, 60-80 nm particle size (SAXS), ≥99.5% trace metals basis
Sigma-Aldrich
Cadmium, granular, 30-80 mesh, ≥99%
Sigma-Aldrich
Cadmium, granular, ≥99%, 5-20 mesh
Sigma-Aldrich
Copper, nanopowder, 40-60 nm particle size (SAXS), ≥99.5% trace metals basis
Sigma-Aldrich
Copper, powder (spheroidal), 10-25 μm, 98%
Sigma-Aldrich
Copper, powder, <75 μm, 99%
Sigma-Aldrich
Copper, foil, thickness 0.025 mm, 99.98% trace metals basis
Sigma-Aldrich
Copper, foil, ≥99.8% (complexometric)
Sigma-Aldrich
Copper, foil, thickness 1.0 mm, 99.999% trace metals basis
Sigma-Aldrich
Copper, powder (dendritic), <45 μm, 99.7% trace metals basis
Sigma-Aldrich
Copper, turnings, purum p.a., ≥99.0%
Sigma-Aldrich
Copper, foil, thickness 0.5 mm, 99.98% trace metals basis
Sigma-Aldrich
Copper, wire, diam. 0.25 mm, 99.999% trace metals basis
Sigma-Aldrich
Copper, bars (random sizes), ≥99.999% trace metals basis
Sigma-Aldrich
Copper, spherical shot, −20-+30 mesh, ≥99.5% trace metals basis
Sigma-Aldrich
Copper, rod, diam. 11 mm, 99.9999% trace metals basis
Sigma-Aldrich
Copper, shot, −3-+14 mesh, 99%
Sigma-Aldrich
Copper, beads, 2-8 mm, ≥99.99% trace metals basis
Sigma-Aldrich
Copper, electrolytic, Analytical Reagent, reag. Ph. Eur., ≥99.9% (complexometric), wire
Sigma-Aldrich
Copper, beads, 2-8 mm, 99.9995% trace metals basis
Sigma-Aldrich
Copper, wire, diam. 2.0 mm, 99.999% trace metals basis
Sigma-Aldrich
Copper, sputtering target, diam. × thickness 2.00 in. × 0.25 in., 99.95% trace metals basis
Sigma-Aldrich
Copper, wire, diam. 0.64 mm, 99.995% trace metals basis
Copper - O.F.H.C., foil, 150x150mm, thickness 0.1mm, annealed, 99.95+%