Skip navigation

Heat exchanger

optimised energy utilisation ensured by plant specific design.

The AAT heat exchanger is used to heat the digester sludge in the digester.

For perfect fermenterind conditions,a constant sludge temperature is required in the digester.

In order to achieve this, the digester sludge is circulated in a pipe heat exchanger and is heated to the requested temperature through hot water in a counterflow procedure.

With respect to sludge quality, performance and energy efficiency, the heat exchangers are optimisted for the respective case of application.


  • Material: Stainless steel
  • Designed as specified by customer
  • Compact construction