Do you know the difference between MBBR and MBR and FBR?
Friends of water treatment and fish farming, you can take five minutes to find out.
1.MBBR
MBBR is a moving bed biofilm reactor, which uses a free-floating plastic film medium to make microorganisms adhere to grow.
The plastic film medium needs to remain suspended, so the material needs to have a density close to that of water, and continuous aeration to make good contact between the pollutants and the attached biofilm, so as to effectively remove BOD.
Features of MBBR:
1.Simple construction and convenient operation.
2. The removal efficiency of organic matter is high, and the effect of nitrogen and phosphorus removal is good.
3. It is not easy to be blocked and does not need to be backwashed regularly.
4. A precipitation process is required after the treatment.
2.MBR
MBR stands for membrane bioreactor, which is a process that combines separation membrane technology with activated sludge.
Most of the membrane bioreactors are immersed in sewage, and the organic matter in the sewage is treated by the microorganisms that grow on the surface of the membrane.
Features of MBR:
1.It can operate under high volume load and low sludge load, and the remaining sludge output is low (theoretically, zero sludge discharge can be achieved), which reduces the cost of sludge treatment.
2.High MLSS concentration can be maintained in the reactor, and the volume load of the processing device is high, thereby reducing the floor space.
3. High microbial biomass requires sufficient aeration, so operation energy consumption is also higher. 4. It is easy to cause membrane fouling, which requires regular membrane cleaning or backwashing.
3.FBR
FBR fixed-bed biofilm reactor, its working principle is similar to MBBR, the difference is that the biofilm is attached to the fixed solid material block.
Aeration under the solid material block provides the oxygen required for the growth of the biofilm and controls the cleaning of the film block.
Features of FBR:
1.It can adapt to wastewater with large changes in the influent water volume and organic content.
2.It is more convenient to operate than MBBR and has lower energy consumption (because of direct aeration at the bottom).
Comparison table of the advantages and disadvantages of the MBBR/MBR/FBR:
In summary, MBBR is the most cost-effective choice.
If you want to know more details about MBBR,please contact Doris
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Email: Kate@aquasust.com