To be precise, we know how to produce the electricity from the collected spent coffee grounds.Īs mentioned before, a major fraction of coffee grounds is organic and, if left for a longer time, it degrades and produces CO2 and it smells bad. On top of that, electricity is being consumed for the coffee preparation process. That fraction of organics is in a form of spent coffee grounds. We worry about recycling the coffee cups, but we easily forget what happens before the ready-to-drink coffee is in our hands.Īctually, every time someone prepares a cup of coffee, a fraction of organic waste is generated. We love drinking coffee, and we do it on our daily basis. Have you ever dreamed of a world where you could take the used coffee grounds and charge your phone with electricity made out from those coffee grounds? Well, we're not quite in "Back to the Future" yet, but in this bioenergy approach, you'll discover that coffee grounds, biodegradable cups and other decaying organic matter, called biomass, are a rich source of energy. We asked a recycling company, Modus energy from Lithuania, to tell us how the bio-based recycling actually works. This entire project showed that in order to create a sustainable environment, it is necessary to start from ourselves and there will always be partners who want to join and help in this path. Recycling spent coffee grounds: How does it work? The writer, Dovile Baltrukeniene, is Marketing and products coordinator in Paulig Lithuania. Only 5 or 6 tons of coffee grounds were necessary to keep the Christmas tree lights going, so with all the hard work that was put in the project, we tripled the amount needed! In two months, we gathered more than 15 tons of coffee grounds that were used to produce around 8000 kWh of clean energy. And when December came, all the residents of Kaunas city were invited to join: a recycling container was put in the City Hall square, specifically for disposing of used coffee grounds, so everyone who wanted to help keep the Christmas tree illuminated was able to join. We gathered coffee grounds from these companies all through November. Half of them actually reached out to us themselves because they wanted to be a part of the project. In the end, more than 170 businesses joined our project. The result: 15K of coffee grounds and 8000 kWh of clean energy We invited cafés, hotels, restaurants, offices and gas stations to join us in this project. In order to acquire enough coffee grounds, we wanted everyone to join – not just our clients. We chose Kaunas because it is the second largest city in Lithuania and currently in a stage of rapid modern development. Therefore, we decided to get people hyped on using this unusual way of powering lights. If we wanted to attract people's attention, we needed to focus on the result. Our main goal was not only to generate green energy for powering Christmas lights but also to include as many people as possible in this project. When we had the idea of recycling coffee grounds, we needed to figure out a way to spread it to others. A very bright idea: Powering lights with old coffee grounds
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