Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/39441
Title: Anaerobic treatment of tequila vinasses under seasonal operating conditions: Start-up, normal operation and restart-up after a long stop and starvation period
Author: Jauregui-Jauregui, J.A.
Mendez-Acosta, H.O.
Gonzalez-Alvarez, V.
Snell-Castro, R.
Alcaraz-Gonzalez, V.
Godon, J.J.
Issue Date: 2014
Abstract: This study examines the performance of an anaerobic fixed-film bioreactor under seasonal operating conditions prevailing in medium and small size Tequila factories: start-up, normal operation and particularly, during the restart-up after a long stop and starvation period. The proposed start-up procedure attained a stable biofilm in a rather short period (28. days) despite unbalanced COD/N/P ratio and the use of non-acclimated inoculum. The bioreactor was restarted-up after being shut down for 6. months during which the inoculum starved. Even when biofilm detachment and bioreactor clogging were detected at the very beginning of restart-up, results show that the bioreactor performed better as higher COD removal and methane yield were attained. CE-SSCP and Q-PCR analyses, conducted on the biofilm prokaryotic communities for each operating condition, confirmed that the high COD removal results after the bioreactor clogging and the severe starvation period were mainly due to the stable archaeal and resilient bacterial populations. Zapotitlán 2014 Elsevier Ltd.
URI: http://hdl.handle.net/20.500.12104/39441
http://www.scopus.com/inward/record.url?eid=2-s2.0-84905036534&partnerID=40&md5=1f2cac834a2f1af9c4ec2e0068d9a50b
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=medl&AN=24785790
Appears in Collections:Producción científica UdeG

Files in This Item:
There are no files associated with this item.


Items in RIUdeG are protected by copyright, with all rights reserved, unless otherwise indicated.