Title: Sewage treatment system

Abstract: A system including an evacuator apparatus, an especially configured centrifugal mill, and a self cleaning screen is employed for treatment of aqueous sewage. The system expedites satisfaction of the biochemical oxygen demand and separates the solids from the sewage so that the treated water is suitable for uses such as irrigation, equipment cooling and the like, and the separated solids are suitable for use in fertilizers.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Burkett, Albert L. (Tucson, AZ, US)
Nelson, Albert O. (Tucson, AZ, US)

Application Number: 787567
Filing Date: 1977-04-14
Publication_date: 1979-03-13
Assignee:
Primary Class(es): 210/104 210/136, 210/173, 210/210, 210/219, 210/380.3, 210/416.1, 241/46.17, 241/154
Other Classes:
US Patent Ref:

1932037	Oct, 1933	Gylstrom	417/129.
2300039	Oct, 1942	Yeomans et al.	417/138.
2695755	Nov, 1954	Denovan et al.	241/154.
2894697	Jul, 1959	Panning et al.	241/154.
3049489	Aug, 1962	Ciabattari	417/138.
3065919	Nov, 1962	Burkett et al.	241/161.
3160354	Dec, 1964	Burkett	241/300.
3375776	Apr, 1968	Dyson	241/46.
3772188	Nov, 1973	Edwards	210/173.
3987970	Oct, 1976	Burkett	241/154.

Other Refs:
Primary Examiner: Spitzer, Robert H.
Assistant Examiner:
Attorney: Haynes, Jr.; Herbert E.