Küssnacht am Rigi
In december 2010 a lake water ultrafiltration signed Membratec took up production in Küssnacht am Rigi.
It has been conceived to treat a maximum of 4000 m3/per day from the lake of the Four Cantons. With its two independent treatment trains it replaces an ancient UV irradiation system which was also still very uncommon when introduced in 1955.
