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Wastewater

Every drop counts. We treat wastewater efficiently and sustainably by using the most modern processes and technologies.

Today's understanding of energy efficiency demands municipalities to permanently optimise their wastewater assets. The requirements for the quality of the treated wastewater increase constantly.

Tailored to your specific requirements, we build efficient and reliable systems for treating wastewater by combining established processes with new processes and their associated plant components into a high-performance, integrated system.

The smooth and perfect execution of your project is key for us, from detailed planning to the optimised successful operation of your overall system.

Our engineers and technicians are among the best-qualified in the industry. They have the longtime knowledge and experience needed to implement both established and new innovative solutions.

Søbyholmen WWTP

OUR EXPERTISE IN WASTEWATER TREATMENT:

Mechanical Wastewater Treatment

  • Coarse and fine screening systems
  • Grit removal equipment, grit trap scraper, grit washer and graders
  • Primary clarifier equipment, primary clarifier scraper
  • Sedimentation tank equipment

Biological Wastewater Treatment

  • MBBR
  • Activated sludge/IFAS
  • MBR
  • Deammonification

Physical/Chemical Wastewater Treatment

  • Flocculation technology
  • Precipitation processes
  • Flotation processes

Sludge Treatment

  • Sludge thickening/dewatering
  • Sludge drying
  • Sludge hydrolysis
  • Sludge digestion

Micropollution Removal

  • Ozonation and Biofiltration
  • PAC and filtration

… and much more

  • Pumping stations
  • Phosphorus recovery
  • Pilot plants

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

HIAS WWTP

New BIO-P removal Process

Design Load

PE:200 000 (2050)
Qmaxdim:1 800 m³/h
BOD:11 907 kg/d
TP: 230 kg/d

Technologies

Pre-treatment (existing)
HIAS Process
Flocculation
Disc filtration

Effluent Requirements

TP: 95% removal
BOD: 70% removal or 25 mg/l

Project Data

Awarded: 2018
Completion: 2020

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

Alvim RA- MBR

   

Client

Sarpsborg municipality

Project manager

Iver Bakkeli

Contract value

85 MNOK

Contract period

2022-ongoing.

Description

Design and build contract for the delivery of the MBR stage for the upgraded Alvim WWTP, which will include biological phosphorus removal. The project is carried out in collaboration with Operon Oy AB and Alfa Laval, the supplier of the membrane system.

Garnes RA Wastewater treatment

   

Client

Bergen municipality

Project manager

Iver Bakkeli

Contract value

99 MNOK

Contract period

2023-ongoing.

Description

New treatment plant built inside an industrial hall. Large variation in water flow. The process consists of screens, grit and grease removal, MBBR, and flotation. Sludge dewatering is handled by screw presses. Highly advanced multi-stage odor control system.

Bekkelaget – Framework agreement for mechanical maintenance

   

Client

Oslo municipality

Project manager

Joachim Nygårdsmoen

Contract value

Løpende 1 MNOK/y

Contract period

2022- 2+2 years

Description

Framework agreement for maintenance of Longwood Escalator and Longwood Combi Wash

VEAS - Framework agreement for technical maintenance

   

Client

VEAS

Project manager

Joachim Nygårdsmoen

Contract value

Ongoing 1 MNOK/y

Contract period

2022- 2+2 years

Description

Framework agreement for mechanical services and industrial piping related to maintenance and upgrades at the VEAS facility.