Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/2973
Título: Dual augmentation for aerobic bioremediation of MTBE and TCE pollution in heavy metal-contaminated soil
Autor: Fernandes, Virgínia C.
Albergaria, José Tomás
Oliva-Teles, Maria Teresa
Delerue-Matos, Cristina
Marco, P. De
Palavras-chave: Bioremediation
Heavy metal
Data: 2009
Editora: Springer
Relatório da Série N.º: Biodegradation; Vol. 20, Issue 3
Resumo: In this work we isolated from soil and characterized several bacterial strains capable of either resisting high concentrations of heavy metals (Cd2+ or Hg2+ or Pb2+) or degrading the common soil and groundwater pollutants MTBE (methyl-tertbutyl ether) or TCE (trichloroethylene). We then used soil microcosms exposed to MTBE (50 mg/l) or TCE (50 mg/l) in the presence of one heavy metal (Cd 10 ppm or Hg 5 ppm or Pb 50 or 100 ppm) and two bacterial isolates at a time, a degrader plus a metalresistant strain. Some of these two-membered consortia showed degradation efficiencies well higher (49–182% higher) than those expected under the conditions employed, demonstrating the occurrence of a synergetic relationship between the strains used. Our results show the efficacy of the dual augmentation strategy for MTBE and TCE bioremediation in the presence of heavy metals.
Peer review: yes
URI: http://hdl.handle.net/10400.22/2973
ISSN: 0923-9820
Versão do Editor: http://link.springer.com/article/10.1007/s10532-008-9228-9
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