A biological turntable for sewage treatment

Abstract

The invention discloses a biological turntable used for sewage treatment. The biological turntable includes a sump, an aeration mechanism arranged inside the sump, a multitrophy turntable mechanism formed by sequentially connecting multiple good-care turntables, and a plurality of anaerobic turntables The anaerobic turntable mechanism formed by connecting in sequence, the good-raising turntable is a ring structure, so that a cavity coaxially arranged with the good-raising turntable mechanism is formed inside the good-raising turntable mechanism, and the biological turntable includes a shield shell located in the cavity, The anaerobic turntable mechanism is located in the protective shell, and the protective shell outside the cavity is fixed on the sump. The motor is fixed inside the protective shell, and the motor is connected to the rotating shaft. On the rotating shaft, the rotating shaft can simultaneously drive the well-raised turntable mechanism and the anaerobic turntable mechanism to rotate coaxially. It solves the problem that the eutrophic biofilm on the outside of the biological turntable is easy to fall off under the washing of the water flow, causing oxygen to enter the anaerobic biofilm inside, resulting in poor anaerobic treatment effect.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a biological turntable for sewage treatment. Background technique [0002] Rotating Biological Contactor (RBC for short) is a biofilm sewage treatment technology, pioneered by the former Federal Republic of Germany in the 1960s, developed on the basis of biological filters, also known as submerged biological filters . The process has the advantages of flexible system design, convenient installation, simple operation, reliable system, low operation and operation costs; it can obtain high purification effect in a short contact time, and has been widely used in various domestic sewage and industrial sewage treatment. The biological turntable uses a rotating disc instead of a fixed filter material. When working, the turntable is immersed or partially immersed in the contact reaction tank filled with sewage. Driven by the driving device, the rotating shaft drives the turntable to rotate...

AI Technical Summary

Problems solved by technology

In order to improve the purification effect, the biological turntable generally includes an aerobic biofilm fixed on the outside of the turntable and an anaerobic biofilm fixed on the inside of the turntable, but the aerobic biofilm outside the turntable is easy to fall off under the washing of the water flow, causing oxygen to enter the inside On the anaerobic biofilm, resulting in poor anaerobic treatment effect

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