Oxidation ditch velocity control system

Details Oxidation ditch velocity control system Oxidation ditch velocity control system

1991-08-02

1992-06-02

Silverman, Stanley S.

Liquid purification or separation

Recirculation

210219, 210926, C02F 318

Patent

active

051184150

ABSTRACT:
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.

REFERENCES:
patent: 3579439 (1971-05-01), Meiring et al.
patent: 4533470 (1985-08-01), Gyulavari
patent: 4902302 (1990-02-01), Reid
patent: 4975197 (1990-12-01), Wittmann et al.

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