Waste water treatment plant and method
AssigneeBioshaft Water Technology, Inc
InventorHassan Badreddine
Life of this patent
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Abstract
A waste water treatment plant includes a treatment chamber or reactor (26) containing a plurality of buoyant sludge carriers (38). In the base of the treatment chamber (26) is a biofilm collection chamber (40). Arranged coaxially within the chamber (26) is a hollow shaft (30) with an air injection device (32) arranged at the foot thereof. In use waste water is introduced into the treatment chamber through an inlet (28) and is caused to circulate around the treatment chamber through the pumping action of the shaft (30) and air injector. Treated water passes through the biofilm collection chamber (40) to an outer settlement chamber (42) having an outlet (44) for treated water.
Claims20
A waste water treatment plant including:
- a treatment chamber containing a plurality of sludge carrier elements, and, in a lower part thereof a bio-film collection region for receiving in use bio-film from said sludge carrier elements;
- an outlet for delivering waste water into an upper part of said treatment chamber;
- a settlement chamber in flow communication at its lower end with said treatment chamber, whereby in use water may flow from said treatment chamber via said bio-film collection region to said settlement chamber;
- a generally vertical column disposed in said treatment chamber and having an upper end which projects above the liquid surface in use, and a lower region in flow communication with said treatment chamber, and air delivery means for introducing air or other gas into a lower region of said column in use to aerate the liquid therein and to cause the liquid to flow upwardly to overflow into said treatment chamber.
A sludge carrier element of generally spherical form with a central bore passing from one side to the other.
Dependencies are inferred from the claim text.