boiler for anaerobic digestion

For many water companies, the annual electricity bill will exceed £1million per annum which renders it one of their most expensive operating overheads. The process of anaerobic digestion does however offer an alternative source of fuel, by converting sewage and other waste into a biogas that is used to generate renewable energy. In order for this to occur, the digester itself must reach a certain temperature for bacteria to produce the gas.

Following the Christmas period, we were contacted by a southern-based water contractor after they experienced an issue with one of their digesters on site. The mechanical tank had suffered a fault and was subsequently unable to reach the temperature that was required to break down organic waste.