Patent ID: 7033506

Claim:
Apparatus for treating water by skimming, the apparatus comprising: a reaction chamber ( 8 ); injector means ( 4 ) for delivering water for treatment via an injection orifice ( 32 ) into the reaction chamber; at least one water flow orifice ( 14 ) for discharging water from the reaction chamber into water in which the apparatus is floating; wherein the center of a flow orifice ( 14 ) and the center of the injection orifice ( 32 ) are separated by an angle (β), defined in projection onto a horizontal plane, lying in the range 50° to 70 °, and preferably equal to 62°, means ( 20 ) for injecting microbubbles of gas with the water to be treated in the reaction chamber; a condensation chamber ( 10 ) for collecting the resulting foam, which is provided above the reaction chamber; a cone ( 26 ) provided with at least one opening, which separates the reaction chamber ( 8 ) and the condensation chamber ( 10 ); wherein the cone ( 26 ) separating the reaction chamber ( 8 ) and the condensation chamber ( 10 ) is adjustable in height.