AnoxKaldnes™ Moving Bed Biofilm Reactor (MBBR)

Biological water treatment system for industrial & municipal markets

Active biofilm carrier with optimal bacteria culture conditions for industrial and municipal wastewater use.

AnoxKaldnes™ Moving Bed Biofilm Reactor (MBBR) is a biological wastewater treatment system for industrial and municipal markets.

First devised over 40 years ago, it’s now used by over 1000 sites worldwide to remove biochemical oxygen demand (BOD), ammonia and nitrogen from process water and wastewater.

How does AnoxKaldnes™ MBBR work?

MBBR biological wastewater treatment involves thousands of plastic biofilm carriers. These have a large protected surface area which provides optimal conditions for microbial growth.

The carriers are suspended and circulated in a wastewater tank by air diffusers (aerobic treatment) or mixers (anaerobic treatment). Biofilms grow on the surface, separating microorganisms from the wastewater.

Retention sieves keep the biofilm carriers in the tank while the excess sludge and treated water flow out, ready for discharge or further treatment.

What is AnoxKaldnes™ MBBR used for?

MBBR wastewater systems are ideal for both new and existing sites in the industrial and municipal sectors. They help facilities optimise their wastewater treatment processes, meet ever-tightening discharge consents and avoid non-compliance penalties.

As well as a sole treatment, MBBR can also be used as pre- or post-treatment alongside other processes such as activated sludge.

AnchorWhat are the benefits of AnoxKaldnes™ MBBR?

AnoxKaldnes™ MBBR is available as a standard prefabricated package with the following advantages:

  • Efficient: highly effective at removing biological wastewater contaminants
  • Cost-effective: particularly economical as a pre-treatment upstream of existing processes
  • Short delivery time: fits on a truck for easy and quick transportation
  • Fast assembly: “plug & play” connections reduce on-site construction time
  • Compact footprint: ideal for limited space
  • Easy to use: minimal staff training required
  • Reliable & robust: low maintenance and downtime
  • Handles variable loads: great for plants with treatment load peaks
  • Can be linked to other technologies: simple to connect to pre-existing wastewater treatment processes

AnoxKaldnes™ MBBR is also available in flexible bespoke configurations, customised to meet your site’s specific needs and goals.

Want to find out more about AnoxKaldnes™ Moving Bed Biofilm Reactor? Fill in the form below and a lab water expert will be in touch.

Water Treatment Applications

We design and manage innovative solutions for a wide range of water and wastewater treatment applications.

Sustainable & economical wastewater treatment systems. Technologies for safe, environmentally compliant wastewater treatment systems and sewage treatment plant operations.

Sustainable & economical industrial water recycling systems

Efficient wastewater and sewage treatment plant technologies for UK environmental compliance.


Our teams of industry experts work with you to supply the water technologies and services you need to overcome challenges in your market.

Delivering compliant process and waste to recovery water for pharmaceutical/cosmetic needs.

Solutions to design, build, maintain and upgrade municipal water and wastewater treatment facilities.

Delivering ingredient water and waste to resource services in the food and beverage industry.

Optimising quality, waste to energy and water treatment for chemicals/petrochemicals industries.

Contact an Expert
Please complete all fields
At Veolia Water Technologies we have exciting offers and news about our products and services that we hope you'd like to hear about. We will use your information to predict what you might be interested in. We will treat your data with respect and you can find details in our privacy policy.
Don't forget, you can always change your contact preferences at anytime by using the unsubscribe links you will find on all of our emails.