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Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2011 by Universidad Católica de Valparaíso -- Chile
Vol. 14 No. 3, Issue of May 15, 2011
 


Fig. 2 Behavior methanogenic activity and free ammonia concentration for RW (a) and TW (b). Sludge flocculent () and granular ().