Measuring total solids measurement prior to the digester

To run the process as efficiently as possible, it is necessary to know the exact dry content in the inlet, because the digester gas yield depends, among other things, on the dry matter. Berthold‘s microwave-based systems provide real-time solids content and enable reliable monitoring and optimisation of the digestion process.

Technical Features

  • Reliable online concentration measurement
  • Representative output with microwave transmission measurement through entire pipe or through product stream
  • No wear of components
  • Precise measurement with only one calibration coefficient even with different sludges
  • Automatic temperature compensation
  • Maintenance-free measuring system


Customer benefits

  • Precise determination of the dry content in the inlet of the digestion tower
  • Increase in gas yield
  • Reduction of heating costs by reducing the amount of water in the digestion tank
  • Non-optical measurement, therefore unaffected by impurities

Berthold's measurement solution

MicroPolar LB 566

MicroPolar is the latest microwave based online analyzer for the reliable measurement of dry substance, water content, or density (e.g. in g/l, Brix, or °Bé).

Microwave FlowCell

Microwave FlowCell with EHEDG certification from DN 50 - DN 150