EU Green Capital Valencia will host 2024 edition of European Urban Resilience Forum
Crucial aspects of resilience, sustainable development and recovery will be under the thematic spotlight
Biogas can be used in all the different sectors where its fossil fuel counterpart is used
Starting this month, the food waste that has been collected from households and businesses in Copenhagen will be used to produce biogas, which will be directly injected into the city’s natural gas network. Thus, the Danish capital’s circular approach can serve to alleviate the reliance on imported fossil fuels by tapping into domestic natural foodstuff consumption as the solution.
Biogas produced from food waste can directly replace fossil gas in electricity and heat production, in city buses and garbage trucks that run on gas, and in the stoves in homes that use city gas.
Food waste across Copenhagen is now taken to a biogas plant in Solrød instead of the former plant near Slagelse. In addition to the fact that the plant in Solrød is closer to Copenhagen, it is also this plant that enables the biogas to be upgraded and used in the gas network throughout Denmark. The biogas has previously been used for electricity and heat at a local heating plant.
When the gas is collected from the food waste, the rest of the food waste is used as fertilizer, which can then be used on organic fields. The fertilizer contains important nutrients, which are good to send back into nature’s cycle.
Another new initiative is that bio bags are also included in the composting process. This ensures a high real recycling rate of around 97%.
In 2021, 15,000 tonnes of food waste was collected in Copenhagen, which corresponds to the energy consumption of five million hot baths lasting five minutes. It is possible to collect more than twice as much food waste in Copenhagen, and therefore there is great potential.
Copenhagen Municipality has a goal of recycling 70% of Copenhageners’ waste by 2024.
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This, however, is likely to change soon
Crucial aspects of resilience, sustainable development and recovery will be under the thematic spotlight
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