Davyhulme makes advances with thermal hydrolysis

摘要

United Utilities (UU) produces "lots of sludge" -around 200,000 tonnes dry solids (tds) a year, in fact. "If that's taken in wet tonnes that is enough to fill Old Trafford ten times over," says Richard Lancaster, UU's regional sludge manager. To help deal with this amount of sludge, UU has invested £100M at its Davyhulme, Manchester site to create a thermal hydrolysis and digestion plant. The Sludge Recycling Centre (SRC) project, undertaken by Black & Veatch, has created the largest thermal hydrolysis plant on the planet "at this moment in time", says Lancaster. It enables Davyhulme to provide farmers with a high quality soil conditioner as well as generate renewable electricity from the biogas produced during the process.