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1Unidad Academica Multidisciplinaria Zona Media, Centro de Investigación y Extensión de la Zona Media-El Balandrán, Universidad Autonoma de San Luis Potosi, Mexico
2Laboratorio de Micología Experimental, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, México
3Universidad Autonoma del Estado de Hidalgo, Instituto de Ciencias Agronomicas, Unidad Academica de Medicina Veterinaria, México
*Corresponding author:Juan F Cárdenas González, Unidad Academica Multidisciplinaria Zona Media, Centro de Investigación y Extensión de la Zona Media- El Balandrán, Universidad Autonoma de San Luis Potosi, Carretera Rioverde-San Ciro Km. 4.5, Colonia Puente del Carmen, C.P. 79617, Rioverde, S.L.P., Mexico
Submission: October 01, 2019;Published: October 18, 2019
ISSN: 2637-7659 Volume5 Issue2
The objective of this work was study the resistance and removal capacity of heavy metals by the fungi Aspergillus niger. We analyzed the resistance to some heavy metals by dry weight and plate: the fungi it grows in 2000 ppm of zinc, lead, and mercury, 1200 and 1000ppm of arsenic (III) and (VI), 800ppm of fluor and cobalt and least in cadmium (400ppm). With respect to their potential of removal of heavy metals, this removal efficiently zinc, (100%), mercury (83.2%), fluor (83%), cobalt (71.4%), fairly silver (48%) and copper (37%). We determine the optimal characteristics for lead, mercury, cobalt and zinc removal in dry cells. The ideal conditions for the removal of 100mg/L of the heavy metals Cr (VI) were 28 °C, pH between 4.0-5.5, 100ppm of heavy metal, and 5g of fungal biomass.
Keywords: Biosorption; Heavy metals; Bioremediation; Microorganisms; Aspergillus niger
Ph.D in Agriculture from Faculty of Agriculture, Tohoku University
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