Chemical-Physical & Biological


Protecno designs and builds physical- chemical plants for the treatment of primary, process and discharge waters. These plants generally have considerable dimensions and usually require concrete walls to contain tanks, basins and sedimentation tanks etc. The design and building of these plants require a through knowledge of the physical-chemical processes, therefore a good basis in engineering is applied at advanced levels. Protecno manufacturers several types of physical- chemical treatment plants for the most various applications with very high runs and difficult process configurations, obtaining high quality results on every occasion.


To manufacture physical- chemical plants the most important processes utilized by Protecno are the following:

  • Coagulation
  • pH correction
  • Oxide reduction
  • Flocculation
  • Flotation
  • Sedimentation
  • Thickening
  • Dehydration
  • Concentration


The physical- chemical plants manufactured by Protecno are utilized for the following applications:

Primary waters

  • Clarification of river water
  • Clarification of lake water
  • Clarification of sea water
  • Clarification of surface waters
  • Clarification of water bed
Process waters

  • Clarification of process waters
  • Removal of oils
Waste water

  • Treatment of chemical industrial waste water
  • Treatment of galvanic industrial waste water
  • Treatment of industrial waste water