Periphyton filtration systems and associated methods

Details Periphyton filtration systems and associated methods Periphyton filtration systems and associated methods

2007-09-28

2009-12-29

Prince, Fred (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S259000, C210S416100

Reexamination Certificate

active

07638054

ABSTRACT:
A floway system for a building roof includes a substrate for supporting a periphyton culture that removes nutrient pollution from surface water and isolates the building envelope from solar-induced heat. The substrate is seedable to form a floway. A basin is provided for holding water to be treated, and a pump for pumping water therefrom to the floway inlet. At the floway outlet is positioned an effluent-collection gutter, which channels effluent to a collection vessel. Algal biomass can be harvested. A flexible divider is positioned in the gutter along the long axis, a top edge of securable adjacent the floway outlet so that, during harvesting, algal biomass is scraped into a distal section of the gutter, and thence to a biomass collection basin. The harvester can include a scraper and mechanism for traveling down the floway. The harvester can also move between adjacent floways and to the building roof.

REFERENCES:
patent: 6553723 (2003-04-01), Alcorn
patent: 6797124 (2004-09-01), Ludwig
patent: 2005/0120715 (2005-06-01), Labrador
patent: 29715819 (1998-01-01), None
patent: 2375761 (2002-11-01), None

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