Liquid purification or separation – Processes – Treatment by living organism
Patent
1995-03-06
1996-11-12
Wyse, Thomas G.
Liquid purification or separation
Processes
Treatment by living organism
210170, 210241, 2102421, 47 14, 47 59, 56 8, C02F 332
Patent
active
055736696
ABSTRACT:
A floway for cleansing water of pollutants is presented that has an upstream weir wherein water to be cleansed is admitted, a downstream weir wherefrom water is discharged, and curbs extending between the weirs for retaining water along the sides. The bottom surface is specifically textured conducive for growing a bed of algae to form an algal turf thereon. The algae bioassimilates pollutants from the water and is harvested periodically by a vacuum system having a notched, rotating nozzle at the intake end. An ultraviolet reactor positioned at the downstream end is used to degrade volatile organic compounds. In addition, the water surface is disturbed to change the angle of incidence of light and focus additional light energy on the algae.
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