C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/9
C02F 3/12 (2006.01)
Patent
CA 1250377
PROCESS AND INSTALLATION FOR THE BIOLOGICAL TREATMENT OF SEWAGE ABSTRACT OF THE DISCLOSURE The present invention relates to a compact sewage treatment method and apparatus, especially for sewage that is highly biologically charged, in which a secondary settling basin is disposed within an activator basin. A portion of the sludge separated within the settling basin is aerated, mixed with liquid separated within the activator basin, and also aerated and recycled to the activator basin. This mixed flow is at least partially degasified before recycling into the activator basin, and again aerated, if required. Uniform loading and reaction is achieved with the present invention since volumes can be reduced while maintaining the same flow rates as compared with previous installations, due to the specific design and operation of the apparatus and process of the present invention. A star-shaped arrangement of the respective aeration components, suction components, and mixing components about the activator basin is one embodiment of such a design and operation thereof.
466119
Hell Walter
Hillinger Bruno
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Waagner-Biro Aktiengesellschaft
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