BIOTIM® aerobic wastewater ­treatment

The BIOTIM® aerobic wastewater treatment technology is our conventional and proven-concept aerobic wastewater treatment system.

This solution is a turn-key and fully integrated biological wastewater treatment system in which the secondary or biological treatment step in the water treatment process consists of an activated sludge reactor tank separated, but connected to a clarifier or sedimentation tank

Nutrient removal

Our aerobic plants are designed to eliminate not only organic pollution (or BOD), but also nutrients like nitrogen (through nitrification - denitrification) and phosphorus (dephosphatation or "bio-P"), resulting in a high-quality effluent.

Post-treatment for water reuse

An adapted post-treatment may be needed in case of low discharge standards are to be met (ozonation, colour removal, sulphide oxidation, …), or for the purpose of recycling the treated effluent (AQUALITY® filtration, EXSEL® desalination).

Anaerobic pre-treatment

When the organic concentration in wastewater is high, our BIOTIM® anaerobic wastewater treatment technology becomes a valuable alternative for aerobic treatment, since an energy-rich biogas is produced in the anaerobic reactor tank, allowing the production of steam or electricity. A best-of-both solution consists of a first BIOTIM® anaerobic step followed by a BIOTIM® aerobic post-treatment step enabling gas production, lower sludge volume and a high-quality effluent.


  • Proven concept
  • Integrated solution
  • Continuous influent and effluent flow rate
  • Constant water level
  • Nutrient removal
  • High quality effluent
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