Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2009 by Universidad Católica de Valparaíso -- Chile
Vol. 12 No. 3, Issue of July 15, 2009

Figure 4. sCOD concentrations during the reaction stage of: (a) phase I; (b) phase II; (c) phase III; (d) VFA concentration variation: (■) Acetic acid (○) Propionic acid and (▲) Butyric acid and (□) pH; (e) VFA-COD equivalent during the reaction stage of phase III.

Supported by UNESCO / MIRCEN network