Conference Proceedings (Abstracts in Conference Proceedings)
Recovery of acetoclastic activity in anaerobic granular sludge, monitored by methanogenic activity measurements and image analysis
- Micro’05-Biotec’05: Livro de Actas do Congresso MICROBIOTEC’2005. Póvoa de Varzim, Portugal, 30 de Novembro - 3 de Dezembro, 272, 2005
Publisher: Universidade Católica Portuguesa. Escola Superior de Biotecnologia
Abstract
The specific acetoclastic activity (SAA) of anaerobic granular sludge was recovered in a lab scale EGSB reactor. The inoculum presented a very low acetoclastic activity (0.81+/-2.48mg COD-CH4/gVSS.day). Ethanol was fed at a COD concentration of 1.5g/L, as sole organic carbon source to promote the biogas production through the hydrogenophilic pathway. During the operation period the specific methanogenic activity (SMA)1 in the presence of acetate, propionate, butyrate, ethanol and H2/CO2, and the biomass morphology were quantified. The SAA steadily increased as expected by the reactor p ...
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