Delivering Smart Aeration to VEAS

Watch our videos

Norway's largest water treatment plant, VEAS plays a vital role in keeping the Oslofjord clean. Wastewater from approximately 700,000 inhabitants travels in large underground pipes to be treated at the VEAS plant

Industry: Wastewater

Howden equipment: KA Compressors, Uptime


During the first few months after the deployment of Uptime, VEAS experienced two distinct challenges where the benefits of Uptime were clearly demonstrated.

VEAS plays a vital role in keeping the Oslofjord clean. Wastewater from approximately 700,000 inhabitants travels in large underground pipes to be treated at the VEAS plant, located on the outskirts of Oslo. In the 1970’s, the Norwegian Government decided to take action to clean the Oslofjord. At this time, the fjord was so dirty, people were hesitant to swim in the water. The VEAS plant was built during this time and it is now the largest wastewater treatment plant in Norway, treating water for 2/3 of Oslo’s population.

Howden has a long-standing relationship with VEAS and we have been working together for many years. Howden’s reliable turbo compressors were installed in the plant in early 1990’s when the Norwegian Government introduced new regulations to remove Nitrogen from the water. Five HV-TurboTM KA compressors are used in the biological cleaning process and have been running continuously for more than 100,000 hours.

Howden engineer arrives at VEAS

A step further in our good relationship with Howden.

- Robert Sikström VEAS Project Manager, VEAS

Uptime install

Learn about how easy it is to install our Internet of Things Solution Uptime at a wastewater plant


VEAS speak highly of our Smart Aeration solution

The challenge

A typical Wastewater Treatment Plant requires the movement of large volumes of air at low pressure and Howden’s turbo compressors provide a reliable source of air for its key process. Biological aeration was accounting for between 60-80% of VEAS’ plant energy requirements. As a result, a key driver for Uptime was to reduce energy consumption and operate the plant more efficiently.

Our customer, VEAS, was experiencing high inlet temperature trips on one of the compressors but could not understand why. VEAS had also noticed they were experiencing a complete fleet trip when they started a particular machine. Due to the nature of this fault, the control panel did not give out the correct information to allow them to understand why this was happening, but they were able to find the issue using Uptime.

The solution

Using the Uptime portal, Howden looked at the historical data for the compressor and reviewed the performance before, during and after the temperature trips had happened. Howden engineers were able to quickly come to the conclusion that the compressor was surging due to the back pressure being too high. VEAS were instructed to check the valves on the system and solved the issue which stopped the temperature trips.

To solve the issue of the complete fleet trips, Howden used the Uptime alarm log and found that one of the sensors, for backwards rotation, had been disconnected during a routine service and had not been reconnected. Using Uptime, Howden’s team of experts were able to solve this issue remotely.


Full Case Study

Please complete the fields below to get your copy.

Email Address
First Name
Last Name

Full List of Case Study pages

The introduction of Howden's VN seal system to the air preheaters brought an immediate drop in leakage level from 26% to 5%.

Howden completed a retrofit of VARIAX ID fans on the 640MW unit 5 at Asnaes Power Station, Denmark.

The Howden Free Floating Piston is a proven unique technolgy that turns the weakest point to one of the strongest, which removes rider bands wear at a stroke

Berre Petrochemical Cluster, which includes polypropylene and polyethylene plants, trusted Howden to reduce its power costs by 7% within a 3 year return on investment.

VentSim CONTROL technologies result in impressive cost and energy savings while also raising productivity at Goldcorp Eleonore gold mine.

Fresnillo mine is one of the most technologically advanced deep mines in the world, and incorporates VentSim CONTROL ventilation management.

UPTIME provides advanced compressor performance analysis at Gunvor Petroleum in the Netherlands

Howden worked with a North American hard rock mine to introduce a Ventilation on Demand system using VentSim CONTROL technology.

Installing a bigger hub at Herningvaerket, reducing installation costs and future service expenses.

The understanding and knowledge provided by Howden is an essential factor when installing additional equipment on your compressors.

New integrally geared compressor (IGC) results in power savings up to 31MW/h a day

Replacement of primary plate heaters with Howden custom designed rotary air preheaters.

200 bar to 300 bar hybrid compressor retrofit for helium capacity filling

At Millmerran Power Station, Howden provides a tailored service that supports their needs of the plant to prepare for their upcoming major outage.

New boiler and FGD processes called for a total change of the ID booster fan at a power plant in Plzen

Howden develop method to drastically reduce the cylinder repair time of reciprocating compressors.

Upgrade your reciprocating compressor with our innovative coated liner solution.

The introduction of Howden's HC element to the air preheater resulted in extended operational times.

Huge savings were realised by using Howden's turnkey service to reduce heater leakage and running costs.

A large chemical plant on the east coast of the United States contacted Howden to perform a full Turnkey project on their critical path air preheaters.

Howden expertise solves long lasting problems with an axial fan at Uniper's Franken plant.

During the first few months after the deployment of Uptime, VEAS experienced two distinct challenges where the benefits of Uptime were clearly demonstrated.

VentSim CONTROL case study for three typical mining projects.

Replacement of existing blades at the Wangqu Thermal Power Station

Efficient engineering solves impeller failures at the Wibank coalfield.

Centrifugal Fan

At Tarmac (Dunbar cement plant, UK), their existing Raw Mill fan was replaced with an enhanced Howden design in 2007.

Reciprocating Compressor

Building the world's biggest reciprocating compressor - a white paper and video.

If you would like to submit an enquiry please get in touch.

Your local Howden contact

The below contact(s) are the representatives for your country. You can change country below.