The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Mar. 13, 2008
Jean-pierre Dautais, Basse Goulaine, FR;
Roger Lacasse, Notre-Dame du Portage, CA;
Denis Pettigrew, Notre-Dame du Portage, CA;
Pierre Talbot, Notre-Dame du Portage, CA;
Jean-Pierre Dautais, Basse Goulaine, FR;
Roger Lacasse, Notre-Dame du Portage, CA;
Denis Pettigrew, Notre-Dame du Portage, CA;
Pierre Talbot, Notre-Dame du Portage, CA;
Premier Tech Technologies LTEE, Riviere-du-Loup, Quebec, CA;
Abstract
Described are a tertiary disinfection system and process for treating a liquid effluent from a domestic secondary treatment unit. The liquid effluent has pathogenic micro-organisms, remaining suspended solids and dissolved organic pollutants. The system has an inlet, a subterranean initial treatment zone filled with a filtering material for removing some suspended solids, dissolved organic pollutants and pathogenic micro-organisms. The initial treatment zone allows the liquid effluent to percolate downward. The system also has a subterranean polishing zone extending horizontally outward from the initial treatment zone, and filled with a filtering material having pore sizes allowing upward capillary dispersion of the liquid effluent. The system also has a subterranean aeration zone having an interface with the initial treatment zone and the polishing zone, to provide aeration enabling aerobic accommodation of microflora for disinfection of the effluent.