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QUANTIFICATION OF HEAVY METALS ABSORBED BY Raphanus raphanistrum L. IN HIGH BASIN OF


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Investigación básica

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The soils adjacent to the upper basin of the Bogotá river (Villapinzón Cundinamarca) are contaminated by anthropic use. An economical alternative to this problem is phytoremediation. The objective of this work was to evidence the accumulation of heavy metals in the organs of Raphanus raphanistrum L. using the atomic absorption technique to determine their phytoremediation potential. Digestion was obtained with nitric acid, hydrochloric acid 1:1, to obtain chlorides and nitrates, followed by atomic absorption analysis for the metals cadmium, lead, arsenic, chromium and cobalt. As a result, high concentrations of arsenic, lead, and chromium, cadmium and cobalt lows in mg of metal / kg of organ were collected from the species collected in Villapinzón compared to that collected in Bogotá. The results indicate a high contamination by heavy metals in soils of the upper basin of the Bogotá river and it is concluded that Raphanus raphanistrum L. is a species with potential of phytoremediation

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Documentos SILAE_2017_VF2.pdf_hazzi.pdf

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