INVESTIGADORES
CURUTCHET Gustavo Andres
artículos
Título:
Bio-dissolution of spent nickel-cadmium batteries using Thiobacillus ferrooxidans
Autor/es:
CERRUTTI, C.; CURUTCHET, G.; DONATI, E.
Revista:
JOURNAL OF BIOTECHNOLOGY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 1998 vol. 62
ISSN:
0168-1656
Resumen:
In this study, the production of sulphuric acid in bioreactors with Thiobacillus ferrooxidans attached on elementalsulphur was investigated. These bioreactors reached a maximum H productivity of 80 mmol kg1 d1 of support.This medium was used for the indirect dissolution of spent nickel?cadmium batteries recovering after 93 days 100%of cadmium, 96.5% of nickel and 95.0% of iron. Moreover, recoveries higher than 90.0% were reached when anodicand cathodic materials were directly added to Thiobacillus ferrooxidans cultures with sulphur as the sole energysource. The results presented show an economic and effective method which could be considered the first step torecycle spent and discarded batteries preventing one of the many problems of environmental pollution. © 1998Elsevier Science B.V. All rights reserved.
