MBBR Wastewater Treatment Plants

The Moving Bed Bio Reactor is a very effective technology widely used for biological treatment of domestic & industrial wastewater.

Most MBBR systems around the world use plastic carriers covered in biofilm to decompose waste.

But the Rekien Solutions Moving Bed Bioreactor (MBBR) systems are developed with the use of Biochips.

Developed from experience gained over decades, our Biochip has evolved into a robust & light carrier material with protected pore structure that is evenly distributed to provide an optimal habitat for the microorganisms critical to the activated sludge treatment process.


In the field of wastewater treatment, the chip-shaped high-performance biofilm carrier is unsurpassed especially when it comes to nitrification.

Attached to the carrier media surface, which accounts for up to 5,500 m²/m³ (1,677 ft²/ft³) (whereas the most competing products provide only between 500 and 800 m²/m³ (152.5 and 244 ft²/ft³)) and which is provided in the form of a detailed pore system, the highly sensitive nitrifying bacteria are optimally protected from external mechanical influences.

Despite the low diffusion depth of substrate and oxygen, the bacteria are optimally supplied from both sides of the thin carrier (thickness: approx. 1.1 mm = 0.043’’).

Benefits of the MBBR Biochip removal performance

The protected active surface area of up to 5,500 m²/m³ (1,677 ft²/ft³), improves the removal performance of the MBBR Biochip which is correspondingly higher per m³ of carrier media compared to other solutions in the market today.

Another critical element is that the pores are kept very thin due to self-cleaning by shear forces which work on the outer side of the carrier (resulting from the carrier’s movement in the wastewater).

Diffusion depth of biofilms, thin biofilms, are essential for optimal substrate and oxygen transfer from the water to the microorganisms.

No Clogging

Clogged carrier elements are characterized by thick biofilms which do not allow for the deeper biofilm layers being supplied with substrate, nutrients, and oxygen. Consequently, these deeper layers are not at all or only hardly biologically active, whereas the thick biofilms reduce the surface area purposed for the attachment of active microorganisms, resulting in a decrease in biodegradation capacity.

The Biochip is prevented from clogging due to its specific shape and motion characteristics: The movement of the carrier elements in the wastewater creates shear forces at the outside of the Biochip, which permanently abrade the biomass growing out of the pores.

Consequently, the biofilms are permanently thin and the optimal transfer of substrate, nutrients, and oxygen from the wastewater to all biofilm layers is ensured.

Reduced footprint of the reaction tank

The high biodegradation performance of Biochip carrier allows for using less carrier volume than with “conventional” carriers since there is less Biochip volume required for providing the similar protected active surface area.

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