Renen successfully installed the first Induced Blanket Reactor (IBR) Anaerobic Digester in Africa
Renen Energy Solutions has partnered with Sunshine Seedling Services in the EEP funded Midlands Biogas Project to install a 110 kW biogas digester at Sunshine’s nursery near Pietermaritzburg in KwaZulu-Natal, South Africa. The biogas plant was completed in October 2017 and has started producing biogas.
EEP committed support for this new and innovative technology (IBR) which was developed at the University of Utah in the United States, and for which Renen Energy has secured an African exclusivity licence. The technology looks and operates in a vertical configuration unlike most commercial digesters, and allows for high performance processing of certain waste streams with a minimal ecological footprint and hydraulic retention time (HRT). The tall silo-like tanks are fed continuously with a waste stream entering the bottom of the tank. The waste passes through a sludge blanket, inoculating it thoroughly and allowing it to make its way naturally through the tank with rapid biological action. The thorough inoculation of digestate allows for a target HRT of only 5-6 days with 50% solids reduction.
The Midlands Biogas Plant includes a 110 kW Combined Heat and Power system, while relatively small, it is specifically designed to provide fertiliser, gas, heat and power alternatives for medium to large agricultural operations – of which there are thousands in South Africa. These farms are fraught with power security problems and are responsible for pollution in the form of chemical fertiliser use and animal waste being washed into natural water courses. Projects like the Midlands Biogas Project provide a decentralised opportunity for sustainable power, organic fertiliser and pollution avoidance. Renen is convinced that decentralisation of services is pivotal to Africa’s future and will continue to seek opportunities to realise its implementation.
See below more photos of the project >>