One of UK`s largest wastewater treatment works (WwTW) is set to become a valuable source of renewable energy. The benefits of a major upgrade at Davyhulme WwTW in Manchester include the generation of up to 10 megawatts of electricity, 24 hours per day, from biogas
In addition the plant will process biosolids that can be applied to land as fertilizer as a sustainable soil improver or a feedstock to Mersey Valley Sludge Processing Center.
The renewable energy source provided by the new installation at Davyhulme will contribute towards the UK`s target of 15% of all energy supplied by the National Grid coming from renewable sources by 2020.
The Thermal hydrolysis plant will increase capacity of existing digesters by nearly two and a half times. This will allow United Utilities to import and treat sludge from other treatment plants in north-west England and avoid building a planned new incinerator near Preston.
Davyhulme WwTW has been in operation since 1894 and serves a population equivalent of 1.2 million for sewage treatment in and around the city of Manchester. The digestion plant will serve a population equivalent of 3 million people.