MOVING BED BIOFILM REACTOR: MBBR WASTEWATER TREATMENT

compact containerised MBBR wastewater treatment

RELIABLE, SIMPLE IN OPERATION AND WITH A SMALLER FOOTPRINT THAN OTHER TRADITIONAL WASTEWATER PLANTS

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Watercore MBBR wastewater treatment plants are reliable and easy to deploy. With a small footprint, simple operation these plants have the ability to withstand peak-flow variations. MBBR treatment plants with the versatility and adaptability to remove not only BOD but also biological nitrogen with little supervision and no interruption

1. MBBR wastewater treatment plants : how they work

MBBR wastewater treatment plant

Watercore MBBR system is a containerised wastewater treatment plant based on attached biological growth.

This is a biological reactor where microorganisms that carry out the treatment are kept suspended in the aeration tank attached to small plastic carrier media and is an ideal solution for sewage treatment plants of up to 1000 PE (population equivalent).

The purpose of the MBBR reactor being continuously aerated using pressurised air is to provide the oxygen required by the bacteria to digest the biological load on the one hand, and to ensure that the support carrier remains in suspension. Watercore process design also includes the suspended media in anoxic zones for sewage denitrification.

Different process configurations can be used for BOD removal, biological nitrification and biological nitrogen removal, but all of them will require a primary wastewater pre-treatment. To simplify the water input requirements Watercore MBBR plants include a compact pre-treatment chamber for screening and grit removal.

2. stages of watercore MBBR wastewater treatment plants

Typically, the first stage of the MBBR plant will remove most of the soluble BOD load. The second stage will include the nitrification reactors.

When nitrification is part of the design of the wastewater treatment it is important to consider the amount of soluble BOD entering our MBBR plant, as two BOD reactors in series can be used to guarantee effective nitrification rates. Two BOD reactors in series can also be used to increment the treatment capacity of industrial or combined domestic/industrial MBBR wastewater plants providing a high rate BOD uptake.

The major advantages of our MBBR sewage treatment plants are the small footprint, simplicity of operation, ability to withstand peak wet weather flow variations and versatility and adaptability to remove not only BOD but also biological nitrogen with no operational attention or interruption.

Because of the relatively low suspended solids concentration in the effluent from our MBBR wastewater plants (they all come with a Lamella Clarifier as standard feature), solids recycling is not required

The MBBR wastewater treatment process is quite flexible and can be used in several different ways :

  • For BOD removal (dimensioned for BOD/day)
  • For Nitrification reactor (dimensioned for NH3-N/day)
  • For Denitrification (dimensioned for NO3-N/day)
  • For any combination of the three above

3. Benefits of Watercore MBBR wastewater treatment plants

  • Up to 1,000 Population Equivalent (PE) capacity  
  • 90% -95% BOD removal
  • Minimum civil works: just a concrete slab is required
  • Quick deployment and scalability
  • Completely automated process with minimum supervision
  • Up to 50% less footprint compared to traditional treatments

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