In Italy, at Sutri
In Italy, at Sutri (in the region of Lazio) there is the only zoo technique firm that produces electric energy through “a biogas system”.
Mr Bruni's firm has got a breeding of 310 Frisona race cows whose defections, through a fermentative activity, produce mainly methane. The gas goes to power up an electricity – generating group for the electric energy.
Mr Bruni's firm has got a breeding of 310 Frisona race cows whose defections, through a fermentative activity, produce mainly methane. The gas goes to power up an electricity – generating group for the electric energy.
OPEN QUESTIONS
- Which condition allows cows to produce milk ?
- What is the peculiarity of the Frisona cows ?
- Which main gas is being produced during the fermentative activity ?
- What is the percentage of the gas produced ?
- Which other gases are being obtained ?
- How long does the mixture take to get to the second digester ?
- What is the difference between the gas produced in the first digester and in the second digester ?
- Do you know any other kinds of biomass ?
- Which kind of biomass produces gases? Name at least one of them and what its usage is.
- What are the conditions favouring the fermentative process?