Water Science and Technology 2005-01-01

Reductive decolourisation of azo dyes by mesophilic and thermophilic methanogenic consortia.

F J Cervantes, A B dos Santos, M P de Madrid, A J M Stams, J B van Lier

Index: Water Sci. Technol. 52(1-2) , 351-6, (2005)

Full Text: HTML

Abstract

The contribution of acidogenic bacteria and methanogenic archaea on the reductive decolourisation of azo dyes was assessed in anaerobic granular sludge. Acidogenic bacteria appeared to play an important role in the decolourising processes when glucose was provided as an electron donor; whereas methanogenic archaea showed a minor role when this substrate was supplemented in excess. In the presence of the methanogenic substrates acetate, methanol, hydrogen and formate, methane production became important only after colour was totally removed from the batch assays. This retardation in methane production may be due to either a toxic effect imposed by the azo dyes or to the competitive behaviour of azo dyes to the methanogenic consortia for the available reducing equivalents.

Related Compounds

  • Sodium 2-bromoetha...

Related Articles:

Methanogens: principal methylators of mercury in lake periphyton.

2011-09-15

[Environ. Sci. Technol. 45(18) , 7693-700, (2011)]

Polyphasic characterization of two microbial consortia with wide dechlorination spectra for chlorophenols.

2012-11-01

[J. Biosci. Bioeng. 114(5) , 512-7, (2012)]

The reductive dechlorination of 2,3,4,5-tetrachlorobiphenyl in three different sediment cultures: evidence for the involvement of phylogenetically similar Dehalococcoides-like bacterial populations.

2006-02-01

[FEMS Microbiol. Ecol. 55(2) , 248-61, (2006)]

Strategies to suppress hydrogen-consuming microorganisms affect macro and micro scale structure and microbiology of granular sludge.

2011-08-01

[Biotechnol. Bioeng. 108(8) , 1766-75, (2011)]

Typical methanogenic inhibitors can considerably alter bacterial populations and affect the interaction between fatty acid degraders and homoacetogens.

2010-08-01

[Appl. Microbiol. Biotechnol. 87(6) , 2267-79, (2010)]

More Articles...