A membrane bioreactor (MBR) is a wastewater treatment process that combines membrane filtration with biological treatment. A suction force is applied to draw the water through the membrane, while the sludge is retained on the membrane surface
MBR is a proven technology that offers important advantages over the conventionally activated sludge process. MBR retains the biomass completely thus the biological reactor can work at high biomass concentrations, as a result a higher effluent quality is achieved.
When ↑ MLSS ⇒ ↓ Volume
When ↑ MLSS ⇒ ↓ Cm
When ↑ MLSS, Cm ct and V cte. ⇒ Increase in degradation capacity
Better effluent quality
Smaller space requirements
Ease of automation
Lower sludge production
The membrane units can be installed either directly in the reactor or in downstream filtration tanks. Both ways ensure that activated sludge, bacteria and viruses are safely retained there. A conventional secondary settling tank is no longer needed to achieve the highest effluent quality.
MBR Internal Configuration:
Biológical Reactor + UF Membranes
MBR External Configuration:
Biológical Reactor + UF Membranes
Due to…
We achieve…
CAS
Footprint: X m2
Organic Load: X KgCOD/day
Mlss: 2000 mg/L
Sludge production: X Kg
MBR
Footprint: ¼ X m2
Organic Load: 2·X kgCOD/day
Mlss: 8000 mg/L
Sludge production: ½ X kg