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Smarter Wastewater Treatment Starts Here

MBBR Biological Reactors

Smarter Wastewater Treatment Starts Here

At AWP, we build wastewater treatment systems that perform—and the MBBR Biological Reactor is at the heart of it all. We incorporate Moving Bed Biofilm Reactor (MBBR) technology into over 90% of the wastewater treatment plants we design, delivering a powerful, efficient, and low-maintenance solution for biological treatment.

What Is an MBBR Biological Reactor?

The MBBR biological reactor is a high-efficiency treatment system based on fixed-film biofilm principles. Unlike traditional activated sludge systems, MBBR eliminates the need for sludge return while maintaining high biological activity in a compact footprint.
Inside the reactor, free-floating plastic carriers provide an ideal surface for bacterial growth. With consistent aeration and mixing, these carriers remain suspended throughout the tank, supporting robust biofilm development. As the biofilm thickens, excess biomass naturally sloughs off and is removed with the treated water—streamlining operation and reducing solids handling downstream.

Engineered for Performance

Advanced Multi-Zone Treatment Design

Each AWP MBBR system is custom-designed to optimize treatment outcomes. Typical configurations include:

  • 2–3 Aeration Zones – Promote aerobic digestion of organics and ammonium.

  • Degassing Zone – Eliminates excessive gases that can disrupt biological performance.

  • Denitrification Zone – Supports biological nitrogen removal to meet tight Total Nitrogen (TN) and Total Kjeldahl Nitrogen (TKN) limits.

Precision Aeration & Energy Efficiency

AWP’s MBBR systems include variable frequency drives (VFDs) and integrated dissolved oxygen (DO) sensors, allowing real-time control of aeration intensity. This means:

  • Automated blower speed adjustment
  • Optimal oxygen levels for bacteria
  • Energy savings and cost reductions
  • Enhanced system stability and process performance

Why Choose MBBR Technology?

High Efficiency in a Compact Footprint

Delivers high treatment capacity with lower sludge production and no need for sludge recycling.

Low Operating Costs

Energy-efficient performance with minimal maintenance requirements.

Adaptable & Resilient

Handles flow surges, organic loading, and process upsets with ease; easily expandable with additional carrier media.

Optimized Biological Performance

Enhances nitrification and sludge retention time (SRT) for advanced treatment results.

Ideal Applications

Our MBBR systems are designed for a variety of applications

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