Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Microbial Succession Within an Anaerobic Sequencing Batch Biofilm Reactor (ASBBR) Treating Cane Vinasse at 55 degrees C

Full text
Author(s):
Ferreira Ribas, Maria Magdalena [1] ; Chinalia, Fabio Alexandre [2] ; Pozzi, Eloisa [3] ; Foresti, Eugenio [3]
Total Authors: 4
Affiliation:
[1] Univ Estadual Maringa, BR-87820000 Cidade Gaucha, Pr - Brazil
[2] Natl Univ Ireland, Galway - Ireland
[3] Univ Sao Paulo, Escola Engn Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Brazilian Archives of Biology and Technology; v. 52, n. 4, p. 1027-1036, JUL-AUG 2009.
Web of Science Citations: 9
Abstract

The aim of this work was to investigate the anaerobic biomass formation capable of treating vinasse from the production of sugar cane alcohol, which was evolved within an anaerobic sequencing batch biofilm reactor (ASBBR) as immobilized biomass oil cubes of polyurethane foam at the temperature of 55 degrees C. The reactor was inoculated with mesophilic granular sludge originally treating poultry slaughterhouse wastewater. The evolution of the biofilm in the polyurethane foam matrices was assessed during seven experimental phases which were thus characterized by the changes in the organic matter concentrations as COD (1.0 to 20.0 g/L). Biomass characterization proceeded with the examination of sludge samples under optical and scanning electron microscopy. The reactor showed high microbial morphological diversity along the trial. The predominance of Methanosaeta-like cells was observed lip to the organic load of 2.5 gCOD/L.d. Oil the other hand, Methanosarcina-like microorganisms were the predominant archaeal population within the foam matrices at high organic loading ratios above 3.3 gCOD/L.d. This was suggested to be associated to a higher specific rate of acetate consumption by the later organisms. (AU)

FAPESP's process: 01/05489-0 - Development, analysis, improvement, and optimization of anaerobic reactors for wastewater treatment
Grantee:Eugenio Foresti
Support Opportunities: Research Projects - Thematic Grants