REFERENCES

Kotka, Finland

Kotka, Finland

The first chain scraper system for circular tanks was installed at Mussalo's wastewater treatment plant in 2003, replacing the conventional bridge scraper. On the basis of the good experience, they chose to continue with Finnchain scrapers.

After the expansion (2008–2009), Mussalo's treatment plants will have the following Finnchain scrapers:

Tank type
Primary sedimentation
Secondary sedimentation
Secondary sedimentation
Sludge thickener
Grit Scraper – rectangular
Information
⌀ 26 m
⌀ 36 m
⌀ 39,5 m
⌀ 13 m
20 m x 1 m
Amount
3 tanks
2 tanks
2 tanks
3 tanks
3 tanks


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