Planning Portal

Draft PPS18: Renewable Energy
Annex 1 Introduction: Sewage Gas

C5. Sewage sludge differs from farm waste in that it generally has a far higher inert content (usually >40% of the dry solid matter in sewage is ash). However, as it is only the organic matter that is digested, the gas produced from sewage is of a similar composition to that from farm waste, and the main difference in the digestion plant is one of scale: as sewage waste treatment is generally more centralised, sewage sludge digesters are usually much larger than farm waste digesters.
Previous Next

Draft PPS18: Renewable Energy

Get Adobe Reader software (link opens in a new browser window)