The Influence of Mixing, Addition of Buffer, Silage and Chicken Manure on the Biogas Production from Cattle Manure

E. Gregeby, G. Özdemir & U. Welander
A number of batch experiments were performed in order to evaluate the biogas production from cattle manure after addition of a buffer, silage or chicken manure. Some experiments were also performed to investigate the effect of mixing. All experiments were performed at 35 .C. The results showed that the extent of the mixing did not affect the biogas production in any larger extent. The addition of a buffer speeds up the start of the biogas...