The core principle of the MBBR process is to use continuously operating, noncloggable biofilm reactors with no need for backwashing or return sludge flows, low pressure loss and high specific biofilm surface area. The biomass grows on small carrier elements that move along with the water in the reactor. The movement is typically produced by coarse bubble aeration in aeration zones and mechanical mixing in anoxic zones. The biofilm carrier elements are normally made of 0.96 specific gravity polyethylene.
Our employees have been engaged in MBBR designs for more than 30 years.
Selected References
FARA WWTP
New state of the art treatment plant for Fredrikstad og Hvaler
Design Load
Qdim: 2170 m³/h
Qmax: 6600 m³/h
TN: 1500 kg/d
TP: 167 kg/d
BOD: 6200 Kg/d
Technologies
Pumping station
Pre-treatment
MBBR
Dissolved air flotation
CoMag system
Effluent Requirements
TN: 85% removal or 6 mg/l
TP: 95% removal or 0,2 mg/l
BOD: 80% removal or 25 mg/l
Project Data
Awarded: 2022
Completion: 2027
UGRA WWTP
New State of the art treatment plant for Ullensaker Municipality
Design Load
PE: 125 000
Qmaxdim: 1 900 m³/h
BOD: 7470 kg/d
TN: 1530 kg/d
Technologies
Pumping station
Pre-treatment
MBBR
Dissolved air flotation
Sand filtration
Effluent Requirements
TN: 70 %removal
TP: 98% removal
BOD: 70% removal or 25 mg/l
Project Data
Awarded: 2020
Completion: 2025
Enga WWTP
Upgrading existing plant for Sandefjord Municipality
Design Load
PE: 103 500
Qmaxdim: 3200 m³/h
BOD: 6210 kg/d
Technologies
Pumping station
MBBR
Dissolved air flotation
Effluent Requirements
TP: 90% removal
BOD: 70% removal or 25 mg/l
Project Data
Awarded: 2018
Completion: 2025
Søbyholmen WWTP
Design Load
PE: 4000
Qmaxdim: 57 m³/h
BOD: 180 kg/d
COD: 360 kg/d
Technologies
Pumping station
Pre-treatment
MBBR
Dissolved air flotation
Sludge dewatering
Effluent Requirements
TP: 90% removal
BOD: 90% removal or 10 mg/l
Project Data
Awarded: 2020
Completion: 2022
