Citadel Biocat+ is now operational at 15 AD plants in 9 countries including Germany, Austria, Finland, Slovenia, Neteherlands, Czech Republic and the UK. Licensees in each country are currently sharing the benefits of the brand with operators of the plants. The benefits include increasing biogas production whilst improving stability and reducing both cycle time and odours. Increased biogas production of at least 10% has been made in each anearobic digestion plants. Additional benefits to biogas generation have been improved stability, reduced cycle time, increased loading, reduced organic content of waste.