Plastic media BIOFILL® type C & CT

The BIOFILL® type C is the latter and better product designed by technicians specialized in biological treatments of fix biomass, in collaboration with the Polytechnic University of Catalonia and the CSIC. The filling is designed in order to contain a large quantity of biomass in its cavities and increase significantly the performance of the treatment where it is to be put, either aerobic or anaerobic.

It is produced in two versions:

  • type C, with density under 1
  • type CT, with density over 1

Its areas of application are many, covering mobile beds for the ampliation of wastewater treatment plants (either urban or industrial), agriculture wastewater treatment plants (collector and packaging plants for legumes, tubers, vegetables and fruits) and aquaculture (fish farming in general). In this range we also include the regeneration of lagoons, rivers and subterranean waters, anaerobic treatments and others.

Main features
Specific surface > 460 m2/m3
Free volume 90 %
Nº of pieces/m3 75.000
Piece diameter 25 mm
Weight per piece 1,7 gr
Weight per m3 standar 127 Kg
Weight per piece BIOFILL® CT 1.8 gr
Weight per m3 BIOFILL® CT 133 Kg
Made by injection in PP and PE
Compression 0 cm/500Kg
Max. working temperature 65 ºC
Resistance to hydrocarbons Good
Resistance to alkalis Excellent
Collocation Random


The advantages that our product has compared to other ones existing:

  • It is a product made by injection.
  • Curvilinear forms and micro concavities that retain the water drops for long time.
  • Promotes biomass grow, which is fixed on the concave and rough walls of each piece.

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BIOFILL® type C achieves good synergy with the products MICROCAT®. The addition of MICROCAT®products to the process will help to increase the biomass growth and nitrification time.
  • MICROCAT DEN. Optimum for denitrification in anoxic conditions. Download PDF
  • MICROCAT AL. To maintain water transparency in fish farming factories and ponds. Download PDF