Gold phytoextraction and mining-degraded soil reclamation

Gold phytoextraction is a technology used to obtain this metal (Au) throughout plants. Some of the benefits of this technology are the mitigation of the environmental impact, the fact that it does not imply the constant use of pollutants, and has the ability to promote soil reclamation. The aim of t...

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Bibliographic Details
Published in:Acta agronomica (Palmira) 2017-10, Vol.66 (4), p.574-579
Main Authors: Ramirez Pisco, Ramiro, Gómez Yarce, Juan Pablo, Guáqueta Restrepo, Juan José, Gaviria Palacio, Daniel
Format: Article
Language:English
Subjects:
Absorption
aggregates
AGRICULTURE, MULTIDISCIPLINARY
Ammonium
Brachiaria decumbens
Environmental impact
Flowers & plants
Gold
Helianthus annuus
Land reclamation
Mine reclamation
Mining
Mitigation
Physical properties
Plant extracts
Pollutants
Reclamation
roots
Soil conservation
Soil degradation
Soil improvement
Soil management
Soil physical properties
Soil pollution
Soil properties
Soil quality
Soils
Statistical analysis
Technology
Toxicity
transpiration
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Summary:Gold phytoextraction is a technology used to obtain this metal (Au) throughout plants. Some of the benefits of this technology are the mitigation of the environmental impact, the fact that it does not imply the constant use of pollutants, and has the ability to promote soil reclamation. The aim of this research was to determine if Brachiaria decumbens has the potential to improve soil physical properties while had achieved a gold extraction. For this purpose, Helianthus annuus and Brachiaria decumbens, were used in a completely randomized design with four replicates. To induce gold uptake, ammonium thiocyanate was applied to plants. The statistical analysis was performed using the R-Studio software. Finally, it became evident that B. decumbens is a gold extractor plant, which also improves the soil physical qualities and compared to H. annuus and present higher concentrations of gold than the latter (P
ISSN:0120-2812
2323-0118
DOI:10.15446/acag.v66n4.59773