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Skip Navigation LinksEvoqua Water Technologies > en > Brands > Envirex > BioSphere® MBBR / IFAS Biological Treatment System

 contact product expert

Mark Pamperin
Product Manager - Biological Processes
262.521.8263

BioSphere® MBBR / IFAS Biological Treatment System

Proven fixed-film technology, ideal for BNR upgrades, and capacity expansions

The BioSphere®​ system incorporates a biomass carrier into a moving bed fixed-film process that provides a protected, extremely high surface area environment for biofilm growth. The system increases capacity by 200% or more and ensures compliance with ever-tightening permit limits—all within the existing plant footprint.

The BioSphere system can be used as an IFAS system or as a MBBR system. It provides complete bioreactor mixing with enhanced oxygen transfer capabilities.

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 applications

The BioSphere Biological System is ideal for plant upgrades, retrofits, or expansions of both municipal and industrial wastewater treatment plants. The flexibility and efficiency of the system also makes it a cost-effective solution for the construction of new plants, as well.

  • The BioSphere System in an IFAS configuration combines biofilm and activated sludge systems for retrofitting existing plants for biological (TN) and total phosphorus (TP) removal.
  • Ideal for increasing plant capacity and improving effluent quality
  • Used to upgrade existing lagoon systems
  • Provides BOD removal with a very short hydraulic retention time (HRT)
  • Can be applied as a roughing filter for pretreatment or as a post-treatment polishing bioreactor

 features

  • Small footprint – The system can successfully achieve BOD to < 5.0 mg/L, and enhanced nutrient removal performance, including total nitrogen (TN) < 3 mg/L without adding tanks to an existing plant. The high-rate treatment allows for a smaller footprint than conventional processes.
  • Flexible design - The treatment system integrates into most activated sludge bioreactors. It can also be applied as a roughing filter for pretreatment or as a post-treatment polishing bioreactor.
  • Expandable - Simple media additionally allows for easy plant expansion to accommodate population growth or other needs for capacity.
  • Stable operation - Toxic upsets and hydraulic "wash out" events do not affect the entire microbial population in the biofilm, ensuring smooth, and rapid system recovery.
  • Intensive and low-temperature nitrification - A separate microbial population held on the biomass carriers enables quantitative nitrification even at a low sludge age. An autotroph-rich biofilm allows stable nitrification, even at low temperatures.

 key benefits

  • Cost effective – Design and implementation efficiencies ensure lower capital and operation costs than conventional alternatives.
  • Reduced maintenance –  Elimination of plugging
  • Nitrogen removal without increased hydraulic retention time
  • Fixed-film biomass is attached to carriers designed to remain in the aeration basin even under hydraulic upset conditions. Due to biofilm layers on the media, toxic upsets typically do not affect all active biomass and recovery is much quicker than with suspended growth systems.
  • Expandable - Simple media addition allows for easy plant expansion to accommodate population growth or other needs for capacity.
  • Reliable media retention - Efficient use of non-clogging wedge wire screens ensures reliable retention of the biomass carriers in the bioreactor
  • Durable - Heavy duty carriers can exceed 20-year life expectancy, even under intense bioreactor mixing conditions.
     
mark.pamperin@evoqua.com BioSphere® MBBR / IFAS Biological Treatment System