As we have said many times, inventive ways to produce energy are needed. We can make use of solar energy, wind turbines, biomass, etc. Today we want to talk about biogas. Yes, that mixture of CO2 and methane that can be reused as natural gas after treatment. But, how can we obtain biogas? Where can it be generated? You may have read about pig farms or other waste sources. Nevertheless, have you ever thought about cheese as a source for biogas? Let’s see this unexpected application for cheese.
Whey, the source for ‘cheese’ biogas
Waste materials in factories can be used to produce biogas. You may well know the use of manure in pig farms. But other smaller uses can also be implemented. We have already talked in this blog about HomeBiogas, a home digestor where you can throw your wastes to produce biogas. Talking at a bigger scale, biogas can be an outstanding source for energy production in many countries.
But let’s talk about this thrilling case of cheese. Valbio is a company specilized in the production of biogas from anaerobic digestors. They have developed several projects in cheese factories. But what part of that delicious product is used to obtain methane? Well, the magic element is whey. When milk is transformed into cheese, whey is naturally produced. It must be disposed of and it is often used in farms as a nutritional additive.
But, could it be used for other purposes? That’s what Valbio must have thought. Thanks to an anaerobic digestor, whey can be used on-site for the production of energy. Regarding Valbio’s website, 1million litres of whey can produce up to 160,000kWh of biogas. Up to now, they have several study cases in Canada (Quebec) and have just installed the first one in France.
Thanks to this solution, cheese factories could become completely autonomous in terms of energy. As well as dimissing the emissions of methane to the atmosphere, one of the main contributors to greenhouse effect.