Boosting secondary sludge gas

A common challenge for all types of biogas plants, including municipal wastewater treatment plants (WWTP), is how to increase the methane yield from the substrate as, compared to its theoretical potential, a relatively large portion share is not converted to gas in the digestion process. For WWTPs this is of particular significance as a means of both improving the treatment process while reducing operating costs and environmental footprint.

Read thefull article in Bioenergy International No 82, 6-2015 here.