Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XIX
Written by Florin BÎJNEA, Ştefana JURCOANE, Gabriela NEAŢĂ
Biogas production from cheese whey as an energetically rich product that can contain more than 50 g/ L lactose was investigated. Whey, a by-product derived from the dairy industry, represents an optimal as primary material for biogas production by anaerobic methanogenic fermentation, compatible with liquid manure. In the analysis performed, it was concluded that whey development fulfills all the conditions favorable environment bacterial anaerobic digestion. Whey, having an organic carbon content of 0,798% was used. In our study, AD batches consisting of whey, and 4% inoculum, in 5 l bench top digester were conducted. Our results indicate biogas yields over 1000 cm3/ L fermentation medium. The concentration of main components in biogas was measured as well. Conclusion – anaerobic digestion of cheese whey is acceptable, with acidification substrate provided in the first phase.
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anaerobic digestion
