ESTUDIO DE LA CAPACIDAD DE REMEDIACIÓN DE LA PLANTA VETIVER (CHRYSOPOGON ZIZANIOIDES) EN SUELOS CONTAMINADOS
ESTUDIO DE LA CAPACIDAD DE REMEDIACIÓN DE LA PLANTA VETIVER (CHRYSOPOGON ZIZANIOIDES) EN SUELOS CONTAMINADOS
DOI: https://doi.org/10.22533/at.ed.1072511029
Palavras-chave: vetiver, fitorremediación, suelo contaminado, pH, conductividad eléctrica, DBO, coliformes, aceites, grasas.
Keywords: vetiver, phytoremediation, contaminated soil, pH, electrical conductivity, BOD, coliforms, oils, greases
Abstract: Soil is an indispensable natural resource for various human activities, providing functions and services with fundamental economic and environmental benefits for the development of daily life. Contamination is a problem arising from the improper disposal of organic and inorganic waste, which impacts its biological and physicochemical properties. Multiple technologies exist to treat contaminated soils, and according to Infante (n.d.), phytoremediation is one of the most used methods in Venezuela. Therefore, this study examines the remediation capacity of the Vetiver plant (Chrysopogon zizanioides) in soils contaminated with wastewater and used mineral oil through specific physicochemical and bacteriological parameters such as: pH, electrical conductivity (EC), biological oxygen demand (BOD), total and fecal coliforms, and oils and greases, with the objective of making it suitable for cultivation. Initial and final values of the parameters were collected in three sample groups with varying numbers of planted bulbs and contaminant concentrations: group A without contaminants, and B and C contaminated. After 5 months of treatment, the results indicated a decrease of approximately 81.1% in electrical conductivity, 76.4% of BOD, 92% of fecal coliforms, 9% of pH, and 98.1% of oils and greases, demonstrating that the Vetiver plant exerts a phytoremediation effect on contaminated soils.
- Analjorie Isabel Lugo Armas
- Verónica Luna Silva
- Valeria Amaranta Pacheco Herrera