C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 9/14 (2006.01) A01K 63/04 (2006.01)
Patent
CA 2549299
A process for purification of water from freshwater fish farm systems which includes the stages, of feeding the water originating from the fish farm pools to a disc filter (2) which operates as mechanical filtration process, directing the water originated in the filter disc (2) to a pumping pool (3), from which it passes to a submerged biological filter (4), a portion of the originating water of the mentioned biological filter passes on to a de- nitrifying filter (5) and from said point it is directed to a percolator filter (6); after passing through the mentioned percolator filter (6), the water passes through a second pumping stage; a portion of the water is passed through a metallic foam filter (9) and then it returns to the fish farm pools; the rest of the water passes through the oxygenation cones (10) and from there it returns to the pisciculture pools. It also mentions, the use of a porous metallic foam, as a catalyst in the purification of recirculation water in a freshwater fish farm plant with the purpose of eliminating bacteria, pathogens, virus and fungi present in said waters.
Gowling Lafleur Henderson Llp
Ruiz Tirado Joaquin
LandOfFree
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