Reductive decolourisation of azo dyes by mesophilic and thermophilic methanogenic consortia
| Autor: | M.P. de Madrid, Francisco J. Cervantes, A. B. dos Santos, Alfons J. M. Stams, J.B. van Lier |
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| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Acidogenesis
azo compounds granular sludge Electron donor chemistry.chemical_compound anaërobe behandeling anaerobic sludge Microbiologie Organic chemistry anaerobic treatment azoverbindingen Water Science and Technology ontkleuring biology afvalwaterbehandeling anthraquinone dyes inhibition redox mediators Biochemistry redoxreacties Milieutechnologie slib Mesophile Environmental Engineering animal structures dyes Microbiology reactor microbiële afbraak redox reactions Bioreactor Life Science Formate Microbial biodegradation WIMEK Thermophile transformation toxicity bioreactors biology.organism_classification kleurstoffen (dyes) sludges quinone-respiration decolorization chemistry waste water treatment Environmental Technology microbial degradation Bacteria |
| Zdroj: | Proceedings of the 10th world congress on anaerobic digestion anaerobie, anaerobic bioconversion ...answer for sustainability, Montreal, Canada 29 August-2 September 2004. Montreal, Canada Proceedings of the 10th world congress on anaerobic digestion anaerobie, anaerobic bioconversion ...answer for sustainability, Montreal, Canada 29 August-2 September 2004 Scopus-Elsevier Water Science and Technology, 52(1-2), 351-356 Water Science and Technology 52 (2005) 1-2 |
| ISSN: | 0273-1223 |
| Popis: | 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. Keywords Azo dyes; decolourisation; methanogenic consortium; redox mediator; inhibitors |
| Databáze: | OpenAIRE |
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