Whether it's a sewer system, sewage treatment plant or industrial exhaust air: We offer tailor-made solutions that eliminate odors sustainably and make your environment more livable.
against odour and foreign water problems.
Tailored, environmentally friendly systems to reduce odors and improve the quality of life for municipalities and industry.
COALSI combines physical, chemical & biological filter technology with foreign water retention and corrosion-free manhole covers.
With expert knowledge, we develop tailor-made solutions for your road, sewer and exhaust air projects.
Compact, powerful and environmentally friendly
Odors have a major impact on the quality of life and work. We are at your side and provide you with advice on sustainable and efficient solutions against odors and foreign water.
COALSI's unique filter technology combines physical, chemical and biological processes to achieve environmentally friendly results.
Hotel Baumann, Otterfing
“In the past, when the weather changed, we often had problems with unpleasant smells coming from the canal, especially near our beer garden. Since the COALSI road sewer filter was installed, the problem has completely disappeared. The installation was completed in just a few minutes and the effect was immediate. The long-lasting filter solution now provides permanent fresh air — a worthwhile investment for the well-being of our guests!”
Stadtwerke Landstuhl sewage treatment
“Our sewage treatment plant has a waste water supply of 125,000 m³ per month, which is why a spacious layout with far-sightedness and a generous filter area were decisive for us. Volumenmax impressed us due to its large filter capacity. The complex completely met our expectations. Volumenmax runs discreetly and correctly, which contributes to our complete satisfaction. I therefore fully recommend COALSI filter technology.”
City of Hockenheim, Civil Engineering
“The amount of dirt in municipal and commercial wastewater led to unpleasant fumes from the sewage system during the warm months. We had to act! For necessary reasons, but also for testing, we had already purchased several filters four years earlier. We have had good experiences with this. Among other things, because of the good filter effect, we used COALSI again for the current demand of around 60 applications.”
Emder Abwasser Technik
“COALSI made it possible to easily adapt the construction of the exhaust air system, which has so far proven effective thanks to the filter technology used.”
Hamburger Stadtentwässerung
“We opted for a COALSI multi-chamber filter, which was easy to integrate into the system thanks to its compact design and unobtrusive shape. The hybrid filter mat technology ensures reliable odour removal and easy maintenance with quick filter changes. So far, the filter has proven its effectiveness flawlessly.”
Would you like individual advice on one of our products or a holistic solution to your problem? Please feel free to contact us, we are here for you.