Apparatus for treating waste water

摘要

An apparatus for treating waste water including a tank having at least one waste water inlet for passing waste water into an inlet region of the tank, at least one waste water outlet for draining waste water from an outlet region of the tank, at least one first baffle between said inlet region and a settlement region of the tank, wherein contaminants having a specific gravity less than one are able to settle out from the waste water for subsequent removal, at least one second baffle between the settlement region and the outlet region of the tank. A recirculation system is adapted to recirculate waste water from the outlet region to the inlet region of the tank. The recirculation system includes a water inlet arranged in the outlet region of the tank, at least one water outlet arranged in the inlet region of the tank, and a pump for pumping water from said water inlet to the water outlet. At least one water outlet of the recirculation system is arranged adjacent the surface of the waste water in the tank in use to deliver water in a stream parallel to the water surface.

主权项

1. An apparatus for treating waste water, comprising:
a tank having at least one waste water inlet for passing waste water into an inlet region of the tank, at least one waste water outlet for draining waste water from an outlet region of the tank, at least one first baffle between said inlet region and a settlement region of the tank, said first baffle being longitudinally extending wherein contaminants having a specific gravity less than one are able to settle out from the waste water for subsequent removal, and at least one second baffle between said settlement region and said outlet region of the tank, said second baffle being an underflow baffle; a recirculation system that is adapted to recirculate waste water from said outlet region to said inlet region of the tank, said recirculation system including a grey water inlet arranged in said outlet region of the tank, at least one other water outlet arranged in said inlet region of the tank, and a pump for pumping water from said grey water inlet to said other water outlet; wherein at least one other water outlet of the recirculation system is arranged adjacent the surface of the waste water in the tank in use to deliver water in a stream parallel to the water surface wherein the grey water inlet is arranged to receive water from an upper region of the outlet region of the tank.