A method for water treatment, water purification and cleaning of contaminated water as well as for the sludge compression and plant for carrying out this method

摘要

In an apparatus for treating contaminated liquid comprising a flotation tank 3 adjustably mounted above a saturation chamber 1 and connected thereto by a spiral conduit 2, coagulant is added to the contaminated liquid and the latter is saturated with air, in the saturation chamber, under a predetermined pressure and for a predetermined time, the liquid then flows slowly through the conduit 2 under conditions which promote agglomeration of the contaminants and simultaneously the pressure of the liquid is reduced so that microbubbles of air adhere to the agglomerating contaminants casing them to float to the surface of the tank 3 within the cylinder 12. IMAGE