Comparative Evaluation of Bio-Hydrogen Production From Cheese Whey Wastewater Under Thermophilic and Mesophilic Anaerobic Conditions
Articles > Article · 2009
Authors: Nuri AZBAR, F. T. Dokgoez, TUĞBA KESKİN GÜNDOĞDU, Rengin ELTEM, Kemal Sami KORKMAZ, Yüksel GEZGİN, Z. Akbal, S. Oencel, Meltem DALAY, C. Goenen, F. Tutuk
INTERNATIONAL JOURNAL OF GREEN ENERGY, Journal Indexed in SCI Expanded, International, 2009, vol 6, pp 192-200
DOI: 10.1080/15435070902785027
Summary
Hydrogen production from cheese whey wastewater via dark fermentation was conducted using mixed culture under mesophilic (36C 1) and thermophilic (55C 1) conditions, respectively. The hydrogen yields and specific hydrogen production rates were found as follows: mesophilic: 9.2 mmol H2 /g COD (chemical oxygen demand) and 5.1 mL H2 /g VSS h; thermophilic: 8.1 mmol H2 / g COD and 1.1 mL H2 /g VSS h. The reaction mixture for the mesophilic condition was composed of acetate (0.3-14.7%) and iso-butyrate (85-98%), plus other volatile fatty acids. On the other hand, the reactor mixture for the thermophilic condition was composed of acetate (1-43%) and iso-butyrate (29-46%).