New digester mixing technology has helped a prominent food waste-to-energy plant enhance its biogas production by an average of more than 43%.
Biogas yields have been improved by Landia and Hayley Group working together closely.
Hayley Group, an engineering component supplier, was consulted about the availability of an alternative, superior mixing system for its customer's second digester; mixers that, unlike those in the first tank, would eliminate typical biogas process problems such as foam, blocking, and crusting – and in doing so, help boost the levels of methane in the gas.
Hayley Group’s Engineer, Rob Bentley, said:
“We constantly look to help customers improve efficiencies. This project is of particular note because, with the new, superior mixing system, the increase per cubic metre in gas from the second digester is over 40%. This is extremely encouraging, to say the least, especially when you consider that the second digester also has 10% less capacity than the older first tank”.