Aeration device for wastewater treatment

Abstract

An aeration device for wastewater treatment comprises an inflator pump, an airflow channel connected with the inflator pump and an aeration pipe fixed at the end of the airflow channel, the aeration pipe extends into a wastewater pool, the aeration pipe is made of an elastic material, a through hole is formed in the aeration pipe, and when the pressure in the aeration pipe is smaller than a set value, the aeration pipe is communicated with the aeration pipe. The through hole is in a closed state and is opened when the pressure in the aeration pipe exceeds a set value, and the set value is larger than the wastewater pressure intensity of the place where the aeration pipe is located. During use, the inflator pump inflates pressure air into the aeration pipe through the airflow pipeline, and when the air pressure in the aeration pipe is larger than a set value, the through holes in the aeration pipe are opened, and the air in the aeration pipe can enter waste water through the through holes. And when the air pump stops working, the air pressure in the aeration pipe is gradually reduced until the air pressure is lower than a set value, at the moment, the through hole recovers the closed state under the extrusion action of the closing material of the aeration pipe, and the equipment stops aeration.

Description

technical field [0001] The invention relates to an aeration device, in particular to an aeration device for wastewater treatment. Background technique [0002] Most of the existing wastewater treatment uses microorganisms to decompose, and microorganisms need to consume a large amount of oxygen during the work process, and the oxygen is generally added through an aeration device. [0003] A common aeration device is to use an air pump to pressurize the air and send it into the waste water tank, so that the oxygen in the air can be incorporated into the waste water. [0004] In this form of aeration device, in order to allow the inflated air to fully contact with the sewage, the air outlet is generally made as small as possible (usually realized by a microporous aeration tube), so that the generated air bubbles are small enough. But in this case, it is likely to cause blockage of the air outlet. Once the aeration device stops, the wastewater will enter the inside of the aera...

AI Technical Summary

Problems solved by technology

But in this case, it is likely to cause blockage of the air outlet. Once the aeration device stops, the wastewater will enter the inside of the aeration pipe along the air outlet, and then the impurities in the wastewater will block the small air outlet and cause blockage.

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