Aran has engineered a packaging solution to capture biogas from the fermentation of agricultural waste and deliver renewable energy to households with limited access to traditional energy sources.
Designed for HomeBiogas systems, the bag is made of high-barrier materials and is described as the largest gas packaging solution in the world at 2.2 x 7 metres. It is believed to hold approximately 7 cubic metres of gas and enable farmers to conveniently and safely process organic waste.
Each bag comes with special fitments designed for the HomeBiogas system, with a four-inch opening designed to allow the insertion of organic waste into the collection bag.
Reportedly, it uses high barrier technology to securely contain the gas generated during anaerobic digestion; this ensures that harmful greenhouse gases do not escape into the atmosphere or leach into groundwater. The bag is then used to transport clean and renewable energy to regions lacking in energy infrastructure.
Aran anticipates that providing such communities with gas for cooking, heating, lighting, and other daily activities will help them become self-sufficient. Furthermore, it hopes to reduce reliance on fossil fuels by encouraging the use of waste as a resource and uplifting a circular economy.
“When HomeBiogas approached us, they had two key specifications that were outside the scope of our previous projects,” says Yakir Tal, project manager in Aran, as he explains the challenges involved with developing the bags.
“The first challenge was the bag size, which was a substantial increase over our regular products. The second challenge was the need for high-barrier capability to preserve methane gas.
“While Aran’s bags are designed to prevent oxygen from entering and affecting stored food, HomeBiogas requires bags that would prevent methane from escaping.
“To meet this challenge, we developed a stronger laminate layer based on nylon or metalized PET to create a more effective barrier against methane. This innovation ensured that the gas storage bag could securely retain the gas, providing reliable performance.”
The bag was recently awarded under the World Packaging Organisation’s WorldStar Global Packaging Awards 2025.
On an industrial scale, enfinium is launching a carbon capture pilot at an energy-from-waste site; it hopes to capture one tonne of CO2 emissions from the plant’s operations every day and, if the trial is successful, plans to deploy the technology across its six energy-from-waste facilities in the UK to keep CO2 out of the atmosphere.
Meanwhile, Fortum Recycling & Waste plans to repurpose CO2 more directly, claiming to have converted CO2 emissions captured from waste incineration into biodegradable plastic. The material is said to offer the same properties as fossil-based virgin plastics while closing the carbon cycle due to its recyclability.
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