Solutions for odor problems in small sewage treatment plants
When unpleasant odors escape from the shaft, they quickly become a nuisance for residents and neighbors. With the COALSI clamping ring, our odor filter system can be easily retrofitted into plastic and special shafts – without the need for drilling, doweling, or welding.
Challenges
When unpleasant odors arise right on your doorstep
Odor problems in small wastewater treatment systems are particularly unpleasant when the system is located in the immediate vicinity of living areas. At the same time, retrofitting a conventional odor filter is not always easy – especially with plastic or special shafts that lack suitable mounting options.
Unpleasant odors on the property
Odors from the shaft can bother residents and neighbors and diminish the quality of life around the property.
Plastic & special shafts
Many plastic and special shafts lack suitable mounting options for conventional odor filters.
No complex modifications
A suitable solution should be retrofittable without requiring structural changes to the existing shaft.
Maintenance must remain simple
Access to the shaft must be maintained for maintenance and inspection work even after the filter has been installed.
Our solution
Easy to retrofit. No drilling required.
With the COALSI clamping ring, the odor filter system can be easily and securely retrofitted even in plastic and special shafts that lack existing mounting options. The clamping ring is installed inside the shaft, while the filter mat can be easily lifted out for maintenance and inspection. Structural modifications such as drilling, doweling, or welding are not necessary.
Easy retrofitting even for plastic and special shafts
No structural modifications required
Activated carbon mat neutralizes unpleasant odors immediately
Filter easily removable for maintenance and inspection
Why COALSI?
Your benefits at a glance.
COALSI systems are designed for long-term use in sewers and public spaces. The main bodies are made of PE-HD containing 50% recycled material. PE-HD and stainless steel are corrosion-resistant materials, making them particularly well-suited for use in demanding environments.Thanks to robust materials and thoughtful design, our systems are built to last and engineered to minimize the need for replacement.
COALSI develops and manufactures its solutions in Germany. Short distances, direct communication, and the close integration of development, production, and customer requirements allow us to maintain strict control over our products and their quality.
Every application is different. COALSI helps you choose the right solution by taking into account local conditions, technical requirements, and your specific on-site needs. With our field service team, we are there for you in person throughout Germany. This gives you a dedicated contact person who understands your situation, can answer questions on-site, and work with you to develop the ideal solution.
How does the process work?
From your first question to the perfect solution.
Consultation
We will discuss your situation and clarify the requirements on-site together. We will then select the right solution for your application.
Easy DIY installation
Most COALSI products are easy to install yourself, allowing many applications to be implemented without the need for additional assembly services.
Technical support
If an installation situation is particularly challenging or requires a custom solution, our technical team can provide on-site support by arrangement. The installation will be tailored to your specific needs and quoted separately.
Frequently asked questions about solutions for
Small Sewage treatment plants
Yes. The COALSI clamping ring was specially developed for plastic and special manholes that lack conventional mounting options.
No. The clamping ring allows for retrofitting without the need for drilling, dowels, or welding.
The clamping ring is suitable for manhole diameters of up to 610 mm. Custom solutions are available for non-standard dimensions.
No problem, we are happy to help. Get in touch.