Cadmium (II) and Lead (II) bioadsorption ability by using dead bacterial biomass in aqueous solutions
Keywords:
Biosorption, Cadmium, Lead, Bacterial dead biomass.Abstract
Annually our country exports higher quantities of metals and metallurgical products, that cause disturbance in ecosystems being mainly affected water resources.To solve this problem, biosorption process represents a promising alternative to remediate natural environments. The aim of this work was based on the evaluation of biosorption ability to Cd (II) and Pb (II) of the Serratia marcescens M8A-2T dead bacterial biomass. This strain reached maximum values of 16 000 mg / L and above 800 mg / L for CMI to Pb (II) and Cd (II) respectively, using plate cylinder method. Furthermore, in monometallic solutions were determined maximum biosorption efficiency of 99.89% and 61.32% for the metals Cd (II) and Pb (II) respectively at pH 9 and times of interaction between 15 and 120 minutes. These results let us conclude that the bacterial biomass can be used in remediation processes of environments contaminated by heavy metals.
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Copyright (c) 2016 Cinthya Elena Ballardo De la Cruz, Fernando Abilio Merino Rafael, Susana Mónica Gutiérrez Moreno
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Theorema segunda época by Vicerrectorado de Investigación y Posgrado is licensed under a Creative Commons Reconocimiento-NoComercial-CompartirIgual 4.0 Internacional License.
Creado a partir de la obra en http://revistasinvestigacion.unmsm.edu.pe/index.php/Theo/index.
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