Abstract A generally closed loop fish rearing system and water conditioning apparatus, including a fish rearing tank with an aeration system and a generally flat floor, a biological means for removal of certain dissolved impurities, having an input conduit connected to the outlet in the fish rearing tank, a dissolved air flotation means for the removal of suspended solids and certain dissolved impurities, having an input conduit connected to the outlet in the biological means, and a fish rearing tank inlet conduit connected to the outlet in the dissolved air flotation means. The aeration system includes an air pressure means, and a distribution system. The distribution system includes a plurality of pre-fabricated air discharge holding means connected to the said conduits, and a plurality of aerating discharge means connected to said air discharge holding means to aerify and mix the water in said fish rearing tank.
A method of constructing a fish rearing tank floor with a generally flat floor and aeration means for the tank water comprising the steps of; pre-fabricating at least one discharge holding means each of which includes an inlet, and an outlet adjacent an upper surface, at least one aerating discharge outlet therein connected to said inlet, positioning each said holding means with its upper surface in the plane of the proposed floor surface, placing air pressure conduits below the proposed upper floor surface and connecting each said holding means inlet to said conduits, and pouring a flooring material up to the surface of said holding means to provide a generally flat fish rearing floor.
Claim 2
Independent Claim
114 words
A method of constructing a fish rearing tank floor with a generally flat floor and aeration means for the tank water comprising the steps of; pre-fabricating at least one discharge holding means each of which includes an inlet, and an outlet adjacent an upper surface, at least one aerating discharge outlet therein connected to said inlet, positioning each said holding means with its upper surface in the plane of the proposed floor surface, placing air pressure conduits below the proposed upper floor surface and connecting each said holding means inlet to said conduits, and pouring a flooring material up to the surface of said holding means to provide a generally flat fish rearing floor.
Claim 3
Dependent Claim
104 words
A method as set forth in claim 1, including the steps of; pre-fabricating a plurality of said holding means, positioning a plurality of said holding means with each upper surface in the plane of the proposed floor surface, placing a cap means over each said discharge outlet in said holding means prior to pouring the floor material, pouring a concrete flooring material up to the surface of each said holding means to provide a generally flat fish rearing floor having an upper surface in the same general plane, and thereafter removing each said cap means for providing aeration from the fish rearing tank floor.