Why Switch to Bead Filters for Biological Filtration?

MBBR or moving bed biological reactors are commonly used for biofiltration and as one step in a multi-step filtration process. While they get the job done, MBBR filters only accomplish one step in the process, and have a number of other shortcomings that can all be overcome by switching to floating bead filters.

AST Bead Filters Offer Advantages Over Moving Bed Filters:

  • Higher biological conversion rates per unit volume of media
  • Simultaneous solids capture – MBBR filters create solids that need to be filtered out later, while bead filters combine all solids capture and biofiltration in one unit
  • Lower energy requirements – bead filters require only a small pump to operate
  • No hysteresis
  • Control over mean cell residence time
  • Can also be used for denitrification
  • Self cleaning – while MBBR media needs periodic routine cleaning, bead filters have an automated backflush resulting in no downtime

By choosing a bead filter over a moving bed filter you can easily make improvements to your overall filtration system. With an AST bead filter you can eliminate a more complex multi-step system, reduce downtime for cleaning and maintenance, all while achieving more efficient biofiltration in a smaller footprint.

Add a Bead Filter to an Existing MBBR System

Need additional biological filtration capacity? An AST bead filter also makes a great addition to your existing filtration system. Using a bead filter as a clarifier prior to an MBBR will help prevent the accumulation of solids in the MBBR vessel extending the time between routine cleanings while at the same time increasing the biological filtration capacity of the system.

An added bead filter can remove solids that the MBBR adds to the water, and provide a second pass biofiltration.

Let's Discuss Your Project

From a simple filter to a complete custom system, our engineers can help you find the perfect filtration system for your needs. Get in touch today!