Aeration facility for biochemical treatment of sewage

Abstract

The invention belongs to an aeration facility for the biochemical treatment of sewage. The existing aeration device has the disadvantages of low aeration efficiency and large noise, and has an adverse effect on the environment. The aeration facility provided by the invention comprises a liquid manifold. The aeration facility is characterized in that a plurality of necked pipes communicated with the inside of the liquid manifold are arranged outside the liquid manifold, the diameter of the outlet end of each necked pipe is less than that of the inlet end connected into the liquid manifold, and the necked pipes are respectively communicated with a plurality of air-liquid mixing chambers arranged outside the liquid manifold; and the upper part of the liquid manifold is provided with an air guide manifold, and the air guide manifold is connected into the air-liquid mixing chambers through branched air pipes. By thoroughly mixing air and sewage before discharging into a sewage tank, the aeration facility improves the biochemical treatment effect; the aeration facility can refine contaminations and prevent the contaminations from being solidified; and the aeration facility has small noise, thereby avoiding affecting the environment.

Description

technical field [0001] The invention belongs to the field of environmental protection equipment, in particular to an aeration equipment for sewage biochemical treatment. Background technique [0002] Aeration refers to the artificial introduction of air into the biochemical aeration tank through appropriate equipment to achieve the desired purpose. Aeration not only makes the liquid in the pool contact with air to oxygenate, but also accelerates the transfer of oxygen in the air to the liquid due to the agitation of the liquid, so as to complete the purpose of oxygenation; in addition, aeration also prevents the suspension of the pool from sinking and strengthens the organic matter in the pool. The purpose of contacting with microorganisms and dissolved oxygen, so as to ensure that the microorganisms in the pool can oxidize and decompose organic matter in sewage under the condition of sufficient dissolved oxygen. The quality of the aeration device not only affects the effec...

AI Technical Summary

Problems solved by technology

The quality of the aeration device not only affects the effect of sewage biochemical treatment, but also directly affects the land occupation, investment and operation costs of the treatment site.

The existing aeration device is mainly to place an aeration tube in the sewage tank, and then use a blower to drive air into the tank through the aeration tube to make the sewage tank contain oxygen. However, this type of aeration device has the following problems: 1. A large amount of air is pumped into the sewage tank by a blower. Although the total amount of air is large, the volume is relatively large, so only the surface is easy to contact with the sewage, and most of the air is lost in the air. Gas efficiency is low

2. Due to the large operating noise of the blower, it has an impact on the environment. When the blower is working, it generates a lot of heat. If it encounters idling or poor heat dissipation, it is easy to burn out the blower and cause losses.

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