Automatic activated carbon filter at Viljandi Aken ja Uks production facility – air 85% cleaner
We installed an automatic activated carbon-based ventilation solution at the production facility of the timber manufacturer Viljandi Aken ja Uks, capturing volatile organic compounds from the air. The system consists of two parallel carbon filters, one of which is always in operation while the other awaits its turn after carbon reactivation. The purity of the ambient air improved by 85% compared to before, and in testing even 99.8% was achieved. The solution enables the company to increase production volumes and remain within environmental standards.
The project challenge
Viljandi Aken ja Uks employs 700 people, and the annual production capacity of the group's companies totals 700,000 units with a turnover of nearly 100 million euros. Wood finishing uses materials containing volatile organic compounds (paints, primers, solvents, stains) that can cause odour nuisance and impair the air quality of the surroundings. With large production volumes, the treatment of chemicals evaporating into the air became an increasingly greater challenge, especially as the industry is located near a residential area.
How we built it
In the coating and drying process, we introduced an automatic activated carbon filter that absorbs harmful compounds evaporating into the air, releasing purified air from the filter. The activated carbon granules installed in the ventilation system capture the necessary compounds. The solution was chosen in accordance with the action plan for reducing volatile organic compounds drawn up together with the Environmental Board. The entire system operates fully automatically and can be controlled remotely – when one filter fills up, another automatically switches on, ensuring uninterrupted reliability.
- Automatic activated carbon filter from the Swedish manufacturer MIAB
- 2 filter units used in parallel – one always in operation, the other awaiting its turn after the carbon is reactivated
- Activated carbon reactivation: after cleaning, the carbon is reusable
- Fully automatic control with remote management
- For smaller companies, a filter with manual carbon replacement based on a similar principle is also available
What we achieved
- The cleanliness of the surrounding air improved by 85% compared to before
- During testing, air cleanliness of even 99.8% was achieved
- Uninterrupted reliability thanks to two parallel filters
- The ability to increase production volumes while keeping the surrounding air clean
- Reduced odour nuisance and outdoor air pollution at the level prescribed by law
- Technology novel by Estonian standards, which at the time of the project was in use at only 2 companies
Galerii
FAQ
Frequently asked questions
How much cleaner does the air become with this solution?
How is the system's uninterrupted operation ensured?
Who is the filter manufacturer and is the technology widespread?
Can the activated carbon be reused?
Is the solution also suitable for smaller companies?
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