Moving Bed Biofilm Reactor (MBBR) 

Moving Bed Biofilm Reactor (MBBR)

What is a Moving Bed Biofilm Reactor (MBBR)?

The Ecologix MBBR is a highly effective biological treatment process based on a combination of conventional activated sludge process and biofilm media. The MBBR process utilizes floating High Capacity MicroOrganism BioChips media within the aeration and anoxic tanks. The microorganisms consume organic material. The media provides increased surface area for the biological microorganisms to attach and grow. The increased surface area reduces the footprint of the tanks required to treat the wastewater. The treatment process can be aerobic and/or anaerobic and operates at high volume loads.

MBBR Media Used in Wastewater Treatment

Aeration tank:
The tank is similar to an activated sludge tank. The aeration is used to keep in motion the activated sludge and carriers. The MBBR system separates the excess bacteria and sludge which are directed to the final separator.

Special plastic carriers: They provide a surface for biofilm growth. Carrier materials are made of materials with a density close to that of water (1g/cm3) an example is high-density polyethylene (HDPE) with a density of 0.9g/cm3. These carriers are moved in the tank through the aeration system. This ensures good contact between the wastewater and the biomass on the carriers.

Benefits of MBBR Technology

  • Saving of space due to its compactness
  • Easy to maintain
  • Good for a high volume of load
  • Extension and expanding are easy. This made possible by increasing the filling degree of carriers.
  • Lower discharge costs
  • MBBR is not affected by toxic shock
  • Independent process performance because there is no return line for sludge; the MBBR eliminates the return activated sludge (RAS)
  • It has high effectiveness of sludge retention time (SRT) which enhances the nitrification process
  • Production of sludge is lower
  • It does not need recycling of the sludge-like activated sludge system
  • MBBR media is installed to retrofit existing activated sludge tanks in order to increase its capacity

Design of MBBR Systems

It uses a combination of activated sludge process i.e. suspended growth and biofilter i.e. attached growth. It uses the entire tank volume for biomass growth by implementing the carriers for attached growth of biofilm. Movement of carriers is enabled by air bubbles through agitation.

The reactor can be in any shape and support different load depending on carrier filling. MBBR design of reactor depended on the actual wastewater characteristics and locality. The plants come either with vertical or horizontal mounted rectangular mesh sieves. The reactor can also be fitted with cylindrical bar sieves.

  • Plug and play packaged system
  • All tank in civil with flexible positioning
  • Automatic / Manual screen
  • UV resistance MBBR Media
  • Proven design
  • Fully Factory Tested equipment’s
  • Systems available from 10 – 5000 kl/day and more
  • Compact and easy to build anywhere.
  • Standard on-site assembly suitable for concert tanks.
  • Fully / semi-automatic controls
  • Concert tank design enhance longevity
  • Flexible Positing of tanks
  • Can be built in one, two or three story.
  • Small footprints reduce land use.
  • Expandable and flexible designs
  • Completely above ground installation.
  • Easy to install &expand.
  • High removal efficiency for nitrogen, BOD & COD,
  • Treated Water reuse in irrigation and grey water applications.
  • Minimum maintenance requirements.
  • Full technical, installation and operation support from trained and experienced AWTm Team.
  • Proven Technology with reliable performance.
  • Reuse of Wastewater in gardening application.

Onsite Sewage Treatment Plants are ideal for the following applications:

  • Housing Project.
  • Schools & hostels.
  • Industrial Office &Parks.
  • Small Communities.
  • Recreational camps & travels trailer parks.
  • Shopping Centres.
  • Restaurants.
  • Resorts, Golf Courses and country clubs.
  • Rural Area Schools
  • Hospitals.


  • 21, Sundar Enclave Phase-1, Narayan Vihar, Mansarovar, Jaipur-302020 (Rajasthan) India
  • +91 9461372282