Potencial de remoción de plomo mediante bacterias aisladas del sedimento de laguna San Juan, Ascensión, Chihuahua
Potential for removal of lead by sediment isolated bacteria from San Juan Lake, Ascension, Chihuahua
DOI:
https://doi.org/10.54167/tch.v10i3.179Keywords:
resistant metal, Pb (II) removal, bioremediationAbstract
Lead (Pb) is a heavy metal found in the environment, its concentration levels in some ecosystems have increased due to anthropogenic activities, and this has effects in human health. Studies have been performed at the San Juan lagoon in Ascension, Chihuahua, to determine the presence of heavy metals, mainly detecting lead, among others. The application of metal resistant bacteria has aroused interest in bioremediation processes, so the aim of this study was to isolate bacteria resistant to Pb(II) from sampling points of the lagoon, 7 strains exhibited different morphological characteristics, and their resistance and capacity to remove lead, were evaluated. The isolated strains were able to resist concentrations up to 1200 mg/l of Pb (II) in liquid medium; the removal percentages of Pb (II) by action of bacteria, show values from 31.6 to 56.3 %, after 12 hours of exposure with the contaminated medium at a concentration of 10 mg/l. These bacteria displayed potential to be applied in bioremediation processes.
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