Bioreactors

Secondary treatment bioreactors create ideal conditions for microorganisms to degrade pollutants found in wastewater streams. Aeration and mixing in bioreactors ensures the microorganisms are properly homogenized with the pollutants they use as food and the oxygen they use to proliferate. In many bioreactors, the aeration equipment provides both the oxygen and the mixing. This approach limits the flexibility of the system, whereas decoupling oxygen demand from mixing requirements provides the operational flexibility to reduce the airflow rate to meet the air required for plant loading.

The BioCycle-ENR Activated Sludge Process and FlexZone Adaptive Process Volume System are ideally suited for bioreactors within municipal and industrial secondary treatment processes. The technology is extremely effective for plants that are underloaded compared to design, or plants with wide diurnal variations.

In mixing limited applications, BioMix Compressed Gas Mixing can be interlaced with diffused aeration grids, allowing simultaneous operation and preventing over-aeration.

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Advantages

Scroll through the tabs to learn about the application-specific advantages of each technology.

FlexZone
BioCycle-ENR
Unparalleled Flexibility Icon
Unparalleled Flexibility
  • Adjusts the bioreactor between anoxic, low DO, and aerobic environments in real time
  • Can be designed for greenfield treatment facilities or integrated into facility upgrades utilizing existing equipment
Energy Efficiency Icon
Energy Efficiency
  • Delivers up to 50% energy savings during periods of low loading by turning off unnecessary aeration and enabling mixing
  • Provides the ideal blend of oxygen delivery and mixing without over-aeration
Straightforward Operation Icon
Straightforward Operation
  • Dynamic process volume control, eliminating the need for fixed process volumes segregated by baffle walls
  • No mechanical or electrical components in the wastewater
Process Optimization
  • Matches the volumetric process environment to influent flow, load, and temperature changes
  • Improves carbon management and optimizes current and future nutrient removal
Energy Efficiency Icon
Energy Efficiency
  • Delivers up to 50% energy savings during periods of low loading by turning off unnecessary aeration and enabling mixing
  • Matches the aeration and mixing needs of the facility, whether it is year one or year twenty
Straightforward Operation Icon
Straightforward Operation
  • Dynamic process volume control, eliminating the need for fixed process volumes segregated by baffle walls
  • No mechanical or electrical components in the wastewater
Process Optimization
  • Matches the anoxic, low DO, and aerobic volumes to changing influent flow, load, and temperature
  • Enhances phosphorus removal and reduces chemicals for phosphorus precipitation
  • Improves carbon management and optimizes current and future nutrient removal
Unparalleled Flexibility Icon
Unparalleled Flexibility
  • Optimizes a variety of proven activated sludge processes — such as MLE, A2O, and others
  • Can be designed for greenfield treatment facilities or integrated into facility upgrades utilizing existing equipment