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Welcome to Stähler GmbH,

We offer you a worldwide unique combined process for the biological treatment of wastewater the so-called STM-System.

It combines the submerged fixed film process and the activated sludge system and has proven its reliability in all variations.The efficiency of the typical activated sludge system is enhanced by working with higher concentrations in the suspended sludge as usual and by the additional effect of the biofilm.Advanced nitrification and denitrification as well as effective biological P-elimination are carried out simultaneously and safely in one tank. All this we offer in an simple and solid construction with lowest energy use.

Our product stand for:

  • efficient energy use
  • stable process performance
  • excellent characteristics of the biomass
  • simple and solid construction
  • very good price-performance ratio
  • space-saving design

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