Anthony McMahan
Engineering at Bayberry Ln, Naperville, IL
License number
Louisiana PE.0008410
Issued Date
Jun 7, 1962
Category
Civil Engineer
Address
Address
420 Bayberry Ln, Naperville, IL 60563
Professional information
Intrachannel Clarifier
US Patent:
4952310, Aug 28, 1990
Filed:
Jul 7, 1988
Appl. No.:
7/216154
Inventors:
Anthony A. McMahan - Naperville IL
Donald C. Vock - Batavia IL
Donald C. Vock - Batavia IL
International Classification:
C02F 320
US Classification:
2101953
Abstract:
An intrachannel clarifier for an oxidation ditch includes an enclosure positioned in the flow path of the oxidation ditch. This enclosure defines a perimeter wall which surrounds an internal volume made up of an upper zone, a middle zone and a lower zone. The cross-sectional area of the internal volume increases progressively from the lower zone to the upper zone. A water inlet port introduces waste water from the flow path into the lower zone, a submerged pipe in the upper zone removes clarified water from the upper zone, and sludge is actively removed from the middle zone via a sludge removal manifold disposed in the middle zone to reduce the residence time of sludge in the middle zone while maintaining a filter blanket of sludge in the middle zone.