Communities

Anaerobic digestion is a biological process where organic matter, such as manure, farm residues, or food production waste, is broken down in a sealed, oxygen-free tank called an anaerobic digester. The process produces biogas, a source of renewable energy, and a nutrient-rich biofertiliser used for crop growth and soil enrichment.

Sites can range from 2-3 hectares. At GMT, we design all of out Plug Flow Digesters to be no greater than 7 metres in height. Compared to traditional CSTR round tanks, which typically measure 12-20 metres in height.

Unlike food waste-based plants, which can emit strong odours, our AD plants only process straw and agricultural waste, which do not produce putrid smells. The entire system is fully sealed, meaning there is no exposure to open air. We take extensive measures to ensure odour does not escape from the facility and welcome visitors to our operational sites if they wish to see for themselves.

Our plants are designed to operate with minimal noise impact. Noise assessments are conducted as part of the planning process to ensure compliance with all regulations.

No it doesn’t. GMT uses straw as its primary feedstock which is a residue from the wheat harvest. It often is left on fields and ploughed back into the land.

Deliveries are carefully scheduled to minimise disruption. No deliveries take place before 7 AM, ensuring operations align with local regulations and community considerations. Focusing on energy dense feedstocks such as straw, means we typically have less vehicle movements than other AD plants.