The ANDRITZ RheoScan is the first optical measurement system on the market that detects the actual sludge viscosity during thickening and dewatering processes.

The ANDRITZ RheoScan has been developed to control the adjustment of polymer to the current sludge conditions in real time 24/7.  Polymer and sludge processing costs will be reduced due to avoidance of drop off in cake dryness, blinded belts, and overdosing of polymer. In all types of municipal and industrial sludge processing facilities the ANDRITZ RheoScan can be applied to belt filter presses and gravity belt tables of all manufacturers.

Rheoscan (EN) - Real time, automatic adjustment of polymer dosage to reduce your costs by up to 40%


  • Municipal sludge, industrial sludge


  • Cost savings of up to 40% thanks to reduced polymer consumption
  • Amortization period of only a few months
  • Massive reduction of overspills
  • Gas yield increase through optimized polymer dosage for digested sludge
  • Increases plant reliability and stability of machine operation
  • Operates without requiring supervision
  • A patented technology which works with any manufacturers’ automated polymer delivery system
  • CE-certified & UL508A optional

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ANDRITZ AUTOMATION is a leading supplier of machines and plant control systems with 65 sites worldwide.

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  • RheoScan

    Real-time, automatic adjustment of polymer dosage to reduce your costs by up to 40%

    PDF : 833 KB
  • Case study: Process optimization with RheoScan at a wastewater treatment plant in Slovenia PDF : 430 KB