Patent ID: 6837991
Filing Date: 2005-01-04
Classification: C02F,Y02W

Abstract:
1. An algal scrubber system comprising: a) a drum having an axis and a perimeter, rotatably supported in a water treatment tank; b) an effluent pipe having a substantially constant diameter and an end shaped to substantially match said perimeter of said drum, said effluent pipe in fluid communication with said water treatment tank and a second tank; said effluent pipe carrying effluent from said second tank to said water treatment tank; c) an influent pipe in communication with said water treatment tank and said second tank, said influent pipe carrying influent to said second tank; d) an algal screen fastened to said perimeter of said drum to support algal growth, said algal screen being split radially exposing a gap in said algal screen, said gap being about as wide as the inside diameter of said effluent pipe, said shaped end of said effluent pipe being located in close proximity to and below said gap in said algal screen, whereby substantially increasing the area of the algal screen; (e) means for rotating said drum comprising means within said gap for capturing effluent from said effluent pipe; (f) for providing light.