Aeration tank foam eliminating device applied to sewage treatment system

Abstract

The invention discloses an aeration tank foam eliminating device applied to a sewage treatment system, which comprises a water pump. The water pump is connected with a water inlet pipeline and a water outlet pipeline, one end of the water inlet pipeline far away from the water pump is a water inlet end, the water inlet end is arranged at the middle layer position of the water of a secondary sedimentation tank, and the free end of the water outlet pipeline extends to the upper side of the aeration tank. A plurality of spraying devices are arranged at the free end of the water outlet pipeline, each spraying device comprises a nozzle, a flow guide head and an adjustable spraying head are arranged on each nozzle, the flow guide heads are communicated with the water outlet pipeline, the adjustable spraying heads are located at the water outlet ends of the nozzles, and the adjustable spraying heads are used for assisting high-speed sprayed water to flow to the foam layer. The foam can be efficiently removed in a wide range in various spraying modes, the pool water in the secondary sedimentation tank is used, the tap water is saved, the environment is protected, the carbon emission is reduced, and the foam removing device adopts the physical removing method, such that the safety and the practicability are high, and the method is more environmentally friendly than the chemical removing method such as the addition of cationic polyacrylamide.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an aeration tank foam elimination device applied in a sewage treatment system. Background technique [0002] At present, most of the sewage treatment systems adopt the activated sludge treatment process, which is widely used in the world. When the sewage treatment plants and sewage treatment systems use the activated sludge process to treat sewage, the surface of the aeration tank will produce Lots of lather. [0003] Especially in winter, due to the drop in temperature, the generation of foam in the aerobic pool and hydrolysis pool in the sewage treatment system is easier, and it is not easy to break. Over time, a large amount of foam will overflow the pool and flow to the periphery of the pool, which will not only reduce the The aesthetics of the site will also affect the sanitation of the surrounding environment. Moreover, once the foam covers the water surface in t...

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Problems solved by technology

[0005] The purpose of the present invention is to propose an aeration tank foam elimination device applied in the sewage treatment system to solve the problems in the prior art that energy conservation and environmental protection cannot be taken into account while removing foam in the aeration tank, waste water can be used mechanically, and resources are fully utilized.

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