Video

BIOCOS® - Hybrid Activated Sludge Process

The BIOCOS® activated sludge process is  operated at a constant water level during the  whole process cycle, and therefore represents a hybrid technology (Biological Combined System) comprising features of continuous flow and SBR systems.

Benefits Include:

  • Enhanced Bio-P Activity — Biomass minimizes demand for chemical phosphorus precipitation
  • Small Tankage — Reliably improved settling performance due to densified biomass significantly reduces overall system volume
  • Post-denite Capability — Typically up to 50% of the nitrogen removal occurs in the sludge blanket of the settling compartments and therefore this post-denitrification approach is highly suitable for low BOD/N ratios in the feed
  • Low Fine Particles — Sequenced settling of the sludge blanket forms a floc-filter which reliably removes fines, producing an effluent low in suspended solids suitable for water reuse
  • Simple O & M — No mechanical equipment within the aeration tank and the settlers while blower air is utilized for RAS-recycle and mixing resulting in low maintenance requirements
  • Low Space Demand — Common-wall construction allows for a compact footprint with the reduced need for external piping runs and recycle pump station
  • Less Energy Demand — Substantial savings due to lack of mechanical devices while the addition of AvN-control reduces the aeration demand for nutrient removal
  • Capital Investment Savings — Lower investment costs due to lack of mechanical equipment (only blowers and in-tank piping compared to scrapers, mixers, recycle-pumps) and common wall construction between the AIR and ALT Reactors
  • Innovative but Proven Technology — more than 100 reference plants

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