Elimination Technologies

Innovative catalytic, oxidative and adsorbing technologies eliminate harmful process gases and odors with low energy and maintenance costs.

ColdOx™ is the Centriair proprietary solution for cold oxidation of gaseous compounds. ColdOx™ uses mainly ionizing UV light to break up gas molecules and transform them to less odorous forms. The ColdOx™ is particularly powerful for molecules that are the result of a natural process, such as Waste degradation and maturing.

The UV reactors are the practical means of applying the ColdOx™ technology in the field. We have several models, depending on airflow and other process conditions such as ATEX. The UV reactors are manufactured from stainless steel and come with integrated safety sensors and CIP (Cleaning in Place) to clean the system automatically.

For high concentration application as well as gases that are stable and where the ColdOx™ is less suitable we have developed a catalytical treatment technology. Our Catalytical technology, which we integrate into the DEO™ and Dualcat™ products ranges are based on a patented solution where the catalyst is applied on a metal net. This gives us a compact solution with good performance as the metal nets ensure a homogeneous temperature for all the treated gas.

Activated carbon filtration, or adsorption as it is called chemically, is a process where mainly VOCs are filtered away. Active carbon is especially efficient in combination with ColdOx™, as the two technologies have their max performance for complementary types of gases. In addition, the active carbon destroys ozone that is created by the ColdOx™ to ensure no ozone is in the outlet air. In the same process a cleaning effect of carbon occurs that extends the active carbon life.

Sewage and biogas are applications where H2S and other sulphur compounds occur in high concentrations. Several sulphur compounds have high odour activity, in fact they are come of the most odorous compounds that are known. The SulphaRed™ media reduces only the sulphur compounds and may be used as the only stage or in combination with ColdOx™ as the final treatment for remaining VOCs etc. The SulphaRed™ has a high capacity for sulphur compounds and therefore offers long life and attractive operational costs.

Scrubbing, i.e., removal of gases by absorption into a water phase, is a well-known technology. We operate mainly acid scrubbers for ammonia removal ahead of a ColdOx™ system for high and stable performance. Application areas are typically composting, sewage plants or biogas plants.

For applications with stable VOCs in low concentrations, the VOCs are concentrated using a zeolite wheel. Once collected and concentrated the gases are released to a efficient treatment stage that then treats a limited gas volume

For applications with stable VOCs in low contrentrations, the VOCs are concentrated using a zeolite wheel. Once collected and concentrated the gases are released to a efficient treatment stage that then treats a limited gas volume


Reduce environmental and health impact

Highly effective particle and gas removal, odor elimination, aerosol and gas separation, and climate emission reduction.

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Save energy, space and costs

Ensure the highest energy efficiency, smallest footprint and lowest total cost of ownership.

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High performance assured

Assured high performance with specialized solutions for key industrial applications, controlled and verified by real-time data.

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