Patent ID: 7270746

Claim:
A water treatment system for a water animal feeding facility comprising a pond containing water, wherein said water treatment system comprises: a waste collection arrangement disposed in said pond for generating a centripetal force within said pond to centripetally collect a waste contained in said water of said pond; and a waste disposal arrangement which has an outlet in said pond and comprises a suction pipe upwardly extended from said outlet at a position above a water level of said water in said pond, and a control valve operatively provided at said outlet to generate a pressure difference at said outlet with respect to an atmosphere pressure through said suction pipe when said control valve is shut off, wherein when said control valve is actuated to open, said suction pipe is adapted for guiding air to flow into said outlet, such that said waste disposal arrangement is adapted for flushing said water by means of air pressure and water pressure so as to discharge said waste out of said pond via said outlet.