C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/18 (2006.01) C02F 3/12 (2006.01)
Patent
CA 2073305
An oxidation ditch for biological aerobic treatment of wastewater having a velocity control system to establish an increased and more uniform cross-sectional velocity throughout the flow channel. The system includes a turning baffle member positioned in at least one of the end sections of the flow channel. The turning baffle member is provided with an end portion that has an upper edge that extends under a brush aerator located across an elongated section of the flow channel. The upper edge of the other portion of the turning baffle member extends above the surface of the flowing mixed liquor stream. The flow of the mixed liquor downstream of the brush aerator is unrestricted by flow baffles located in the flow channel.
osse d'oxydation pour l'épuration biologique aérobie des eaux usées, comportant un dispositif de régularisation de l'écoulement des eaux dans le canal. Le dispositif de régularisation est constitué d'au moins une chicane tournante située à l'une des extrémités du canal. Le bord supérieur de l'une des extrémités de la chicane se prolonge sous une brosse d'aération placée en travers du canal, et le bord supérieur de l'autre extrémité de la chicane dépasse de la surface de la liqueur mixte. L'écoulement de la liqueur mixte en aval de la brosse d'aération n'est pas perturbé par la ou les chicanes du dispositif de régularisation.
Cooper Lindy Ty
Weis Frank G.
Finlayson & Singlehurst
Smith & Loveless Inc.
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