Spontaneous arsenic (III) oxidation with bioelectricity generation in single-chamber microbial fuel cells.
J Hazard Mater
; 306: 8-12, 2016 Apr 05.
Article
em En
| MEDLINE
| ID: mdl-26685120
ABSTRACT
Arsenic is one of the most toxic elements commonly found in groundwater. With initial concentration of 200µgL(-1), spontaneous As(III) oxidation is realized completely during 7 days operation in single-chamber microbial fuel cells (MFCs) in the present study, with the maximum power density of 752.6±17mWm(-2). The product is less toxic and mobile As(V), which can be removed from aqueous solution more easily. High-throughput 16S rRNA gene pyrosequencing analysis indicates the existence of arsenic-resistant bacteria as Actinobacteria, Comamonas, Pseudomonas and arsenic-oxidizing bacteria as Enterobacter, with electrochemically active bacteria as Lactococcus, Enterobacter. They interact together and are responsible for As(III) oxidation and bioelectricity generation in MFCs. This study offers a potential attractive method for remediation of arsenic-polluted groundwater.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Arsênio
/
Poluentes Químicos da Água
/
Fontes de Energia Bioelétrica
Idioma:
En
Revista:
J Hazard Mater
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
China