Merry Odour Free Christmas!

Centriair would like to wish all of our readers a Merry Christmas and a Happy New Year. This year has not been easy and has influenced all of us around the world. However in tough times, our team has proven to be even stronger in all aspects of work and delivered a lot of large and complex projects. We hope that next year we will all be able to go outside and enjoy the weather with no pandemic and no smells to disturb us.

New Order Received in UK

Centriair has received yet another order in UK to remove oil mist and treat odour at a food production site. The project delivery consists of 4 Olga type centrifuges and a ColdOxTM system. The system will not only ensure calm and happy society but will also put the customer on  the greener side of sustainable business.

Brista Installations Finalized

The installation works at Brista are now finalized. Thanks to our engineering team for delivering our ColdOx™ system for waste reception plant near Stockholm, Sweden. It is important to mention that this project has by far the record airflow being treated by our system  185 000 m3/h. The system treats the air from the reception hall and processing equipment.

New Captain, New Opportunities

Allow me to welcome our new Deputy CEO and Head of Sales and Marketing – Ulf Sandberg. Having a background in international sales, and a vast experience as CEO of Krusell for 15 years, Ulf has a lot of experience that Centriair will benefit from.


Currently he is responsible for the growth strategy at Centriair mainly focusing on rapid expansion and entrance to new markets. With Ulf as a head of the sales team, Centriair will be taking various growth directions simultaneously in order to truly become the technology leader in odour abatement.

Lithuania welcomes Centriair to perform an odour abatement project.

After a successful delivery of a DEO – 200 unit to a Latvian Biogas plant, Centriair has received yet another order to treat odour from a Biogas plant in Lithuania. Baltics region is a fast growing territory with a lot of potential. Odour is becoming a bigger issue every day and requires a trusted and stable solution.


For that reason Centriair will be delivering a ColdOxTM unit to treat 25 000 m3/h airflow from a local Biogas plant. We are very honored to be a part of such an important project.

Entering the Danish Market

We have received an order in Denmark! Our system will reduce odour at a waste reception and pre-treatment facility. The feed stock will consist of organic household waste and packed food waste from food chain companies in the greater Copenhagen area. The system will have a capacity for expansion, meaning that as the waste volume/odour volume increases, we can add components into the proposed system should the plant be expanded. How great is that? Easily expandable system without a need to retrofit!

Entering the Finnish Market

Centriair is very proud of our first ColdOxTM unit installation in Finland. The customer is building a Biogas plant where the process air and hall air need to be treated. Together with our country director for Finland – Jan Ronnberg, we managed to get a tremendous start to our operations in that region. Contact us directly if you want your very own ColdOxTM system.

Polish Market. An ordinary story of extraordinary project.

In Spring 2020 Centriair had signed an agreement on delivery of odour treatment technology to a fish meal producer in Poland. This is the second time our company takes on a project dealing with fish waste and we fully understand all the causes of the smell problems, arising from fish processing, and the best ways to treat them.


With our ColdOx system combined with acid scrubber we created a unique unbeatable technology whose performance matches to none. This is so far our 5th project in Poland and we are proud of our sales team, Polish distributors and mainly genius engineers that make our products so great.

Burning Empty Calories – Energy Waste in Food Processing


You have probably heard the term ‘empty calories’, referring to food with low or no nutritional value coupled with high energy content. The same concept can be transferred to energy use, consuming high amounts of energy (calories) to provide a small amount of actual work. Consider a hair dryer, it uses a lot of electricity to evaporate and remove a small amount of moisture from somebody’s hair. In the food industry many processes remove unwanted water content as part of the process, this requires a lot of energy. However, few recapture the energy that goes into the evaporation of water. This is a huge waste of energy, but solutions are readily available.

Current Situation – The Case of Potato Chips

Potato chips (UK: crisps) frying is perhaps one of the easiest case to dive into to explain the situation. Up to 90 percent of the energy when producing potato chips goes into the frying of chips. Then more than one quarter of the energy that goes into frying is lost in the exhaust gases. This because water needs to be removed from the potato to become a chips.

When entering the fryer, a potato chip contains about 80 percent water. After processing the moisture content is typically only two percent. Ready-to-eat breakfast cereals from wheat, rice or maize go through a similar process and end up with a similarly low moisture content. This list is long, just consider what processed or pre-fried foods there are available in the supermarket.

Another source of empty calories is that the exhaust contains compounds, such as frying oil, Volatile Organic Compounds (VOC) and odor particles. These need to be removed before releasing the exhaust to the air. More often than not, this is done by using even more energy to burn off the unwanted particles in the exhaust.

How we can solve it!

The water naturally occurring in the ingredients is both the problem and the key. As the water is evaporated it exits the process as low pressure steam. The evaporation of water takes a lot of energy, but as the waste heat is carried in water it is also relatively easy to recover the energy by condensation the water.

Companies such as Centriair have solutions that can recover both the wasted heat in the exhaust and remove unwanted particles. In a brilliant setup that first separates oil for reuse or recycling, a second step condensates the steam in a heat exchanger to capture the waste heat, and finally remove the particles by an advanced UV-treatment.

Recovered heat can then be used to heat buildings, preheat and the dry different stages of food processing. If there is no use for heating, a Climeon Heat Power System can convert this low temperature waste heat into electricity. The electricity can then be used to offset internal electricity consumption. Reducing the need for grid-purchased electricity while improving the factory energy efficiency.

Installation works ongoing at Nodra AB

Work on installing two odor reduction units consisting of ColdOxTM and Active Carbon is ongoing at Nodra AB in Norrköping.

One unit of 10 000 m3 will take care of main ventilation ducts and main pumping station. We also installed a smaller unit for external sludge reception to take care of the odor that is vented out of the property. If you want your own ColdOx system, feel free to send us a message!