The AnoxKaldnes Moving Bed Biofilm Reactor (MBBR) is a wastewater treatment technology that uses biofilm carriers to optimize bacteria cultures for use in industrial and municipal applications. The plastic carriers are mixed with the wastewater by an aeration system, and the treated water flows out of the tank through a sieve. The compact system removes BOD, ammonia, and nitrogen, and the design of systems in flexible based on application.
Distributors / Implementing Organizations
The AnoxKaldnes MBBR is built to bespoke configurations and customised to meet the sites specific requirements.
Intellectural Property Type
User Provision Model
MBBRs are designed with and then purchased though the manufacturer, to ensure that treatment is optimal for specific applications.
Distributions to Date Status
More than 600 MBBR systems have been implemented worldwide.
Flow rate (L/min)
100 – 800 L/min
Power Supply Type
MBBR, aeration, biofilm
BOD Removal Efficiency
COD removal efficiency
NH4-N Removal Efficiency
TSS removal efficiency
Total Phosphorus Removal Efficiency
Fecal Coliform Removal Efficiency
The AnoxKaldnes MBBR system is designed as a tank with an inlet for wastewater and an outlet, covered by a sieve, for the treated wastewater. Small plastic biofilm carriers are mixed in the tank through aeration from the bottom of the tank. These carriers are designed to provide the optimal surface area for biofilm to grow on, effectively treating the wastewater. This video further explains how the system works.
Technical support is provided by the manufacturer through various water services and maintenance support packages. These packages include water plant maintenance and chemicals for water treatment. In addition all of the packages include remote technical support.
Individual components are available from the manufacturer for replacement through the technical support plans.
The AnoxKaldnes MBBR has has an observed operational lifespan of over 15 years with no reduction in performance.
Manufacturer Specified Performance Parameters
The manufacturer specifies performance targets related to small plant footprints, accommodating high loading, and creating optimal bacteria culture conditions.
Vetted Performance Status
The AnoxKaldnes MBBR must be operated safely and correctly to ensure that users are not harmed by either the growing bacteria or the untreated wastewater.
Complementary Technical Systems
The system can be coupled with settlers, clarifiers, or disk filters which enable downstream separation of sludge from treated water.
Academic Research and References
McQuarrie, J., Boltz, J., 2011, “Moving Bed Biofilm Reactor Technology: Process Applications, Design, and Performance,” Water Environment Research, 83, pp. 560-75.
Hoang, V. et. al., 2014, “Nitrifying moving bed biofilm reactor (MBBR) biofilm and biomass response to long term exposure to 1C,” Water Research, 49, pp. 215-224.
Biswas, K., Taylor, M., Turner, S., 2013, “Successional development of biofilms in moving bed biofilm reactor (MBBR) systems treating municipal wastewater,” Applied Microbiology and Biotechnology, 98, pp. 1429-1440.
Casas, M. et. al., 2015, “Biodegradation of pharmaceuticals in hospital wastewater by staged Moving Bed Biofilm Reactors (MBBR),” Water Research, 83, pp. 293-302.
Hoang, V., et al., 2014, “An Investigation of Moving Bed Biofilm Reactor Nitrification during Long-Term Exposure to Cold Temperatures,” Water Environment Research, 86, pp. 36-42.
Piculell, M., 2016, “New dimensions of moving bed biofilm carriers influence of biofilm thickness and control possibilities,” Ph.D dissertation, Lund University, Lund, Sweden.
Compliance with regulations