Europe’s leading provider of mobile filtration solutions, DESOTEC, today announced it has acquired the mobile gas filtration business of UK-based Environ Consultants. This transaction builds on a successful and long-standing 15-year relationship between the two companies, paving the way for a natural transition.


Private equity funds managed by BLACKSTONE, one of the world’s leading investment firms, have acquired DESOTEC from its previous investor, EQT, who will remain co-investor with a 15% minority stake through its EQT Mid Market Europe fund.
These investments will bring further strength to DESOTEC's pan-European growth strategy and fortify its market-leading position. For DESOTEC, the BLACKSTONE investment and continuous support of EQT are a demonstration of their trust in our strategy and team. DESOTEC continues its mission to protect the planet through innovative circular filtration solutions, enabling clean water, air, and soil.


DESOTEC expands its recycling facilities for industrial purification solutions by opening a new state-of-the-art reactivation plant. This furnace, built at DESOTEC headquarters in Roeselare, Belgium is the fourth and largest one, offering even greater recycling capabilities, especially for heavily loaded activated carbon waste streams, containing high concentrations of organics, sulphur, chlorine, and many other contaminants. With this investment, DESOTEC strengthens its European market-leading position, having the largest industrial reactivation facility in Europe combined with the biggest mobile filter fleet.


DESOTEC acquires Odoroff's business for mobile filtration solutions in Finland. The agreement is an important step to expand DESOTEC's mobile filtration business in the Nordics and achieve its ambitious international growth objectives. This acquisition is a great opportunity for DESOTEC to harness its market know-how to serve growing business needs for purification solutions in the Nordics and continue its sustainable growth over Europe.


DESOTEC integrates the activated carbon business from F3 Fenice Energia, the Italian (bio)gas cogeneration specialist. This commercial agreement strengthens DESOTEC local presence in Italy and adds local market knowledge and technical know-how to the Italian branch of DESOTEC. This deal provides DESOTEC Italia with the additional experienced sales force to accelerate its growth in the supply of mobile activated carbon filtration solutions for air emission and wastewater treatment, biogas and chemicals purification and soil remediation in Italy.


The Swedish investment fund EQT buys Desotec from the previous investor AAC and its founders.
The current management led by CEO Mario Hertegonne is also investing in the acquisition structure.
EQT will support Desotec in further growth and development through international expansion and the investment in reactivation capacity and mobile filter fleet.


DESOTEC doubles its capacity at its mobile filter technical department in Izegem in order to accelerate its growth in mobile filters. DESOTEC establishes Desotec Italia to support its growth on a Pan-European scale.


DESOTEC inaugurates its second distribution centre : new warehouse facility of 4500 m² under roof and 10 extra fiilling stations for big filters. Desotec inaugurates as well its third reactivation furnace in Roeselare (Belgium), enhancing its leading capabilities to reactivate industrial spent activated carbon.


CEO Mario Hertegonne develops and implements with his management team a Pan-European strategy to roll-out DESOTEC’s leadership position in purification solutions with mobile activated carbon filters for 5 markets segments: Air Emission, Biogas, Chemicals, Remediation and Waste Water.


DESOTEC IBERICA. The new branch is located in Tarragona not far from the harbour with sales offices, 1100m2 warehouse and 1200m2 outside storage.


DESOTEC activated carbon develops and patents the world’s largest mobile air treatment filter system, the AIRCON® V-XL. The system consists of a fixed part, the AIRCONNECT®, on top of which the AIRCON® V-XL is positioned. This fixed part is connected directly to the gas to be treated which makes the need of flexible connections superfluous. The AIRCONNECT® – AIRCON® V-XL has a revolutionary design which results in the world’s first real click-and-start activated carbon filtration system for gas flow rates up to 55,000m3/h per unit.


DESOTEC POLSKA opens a new service centre in Gdansk with a new warehouse, workshop and modern sales offices.


AAC Capital Partners, a leading Northern European mid-market buy-out firm, acquired a majority stake in DESOTEC activated carbon whilst the company’s founders retain a significant minority interest.


DESOTEC activated carbon expands the reactivation capacity with a 2nd reactivation furnace.But this is not all… Further investments are done in the expansion of the fleet of mobile filters, also for the treatment of biogas, and in a special designed truck for the exchange of activated carbon in fixed filters, discharging and loading with the same truck.


DESOTEC activated carbon constructs a new plant with over 5,000m² of storage space and a special zone for the handling of activated carbon and a completely new office building.DESOTEC activated carbon establishes DESOTEC POLSKA with production facilities and offices in Gdynia (near Gdansk).


DESOTEC activated carbon starts with the construction of its own environmentally friendly reactivation furnace to recycle spent activated carbon by thermal reactivation for reuse. This reactivation kiln, specialised off gas treatment and continuous exhaust gas monitoring are unique in Europe.


DESOTEC activated carbon develops OXYCON®, a hybrid technology whereby the activated carbon filters are aerated. Within this context, the company is nominated for the Filtration and Separation Product Achievement Award.


DESOTEC activated carbon specialises in activated carbon with the focus on environmental applications for the purification of liquids and gases. DESOTEC activated carbon starts to develop and offer tailor-made fixed-bed activated carbon filters and interchangeable mobile filter systems to make the use of activated carbon simple and easy. The AIRCON® mobile adsorption systems are designed to purify gases using the AIRPEL® range of products, while the MOBICON® systems are used to purify liquids with the ORGANOSORB® range of products. Today DESOTEC activated carbon has the largest fleet of mobile activated carbon filters in Europe.


Founded by Joost Desmet and Bart & Peter Sobry. Initially, DESOTEC activated carbon designed and built different types of installations for water treatment and sludge processing.

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