Landscape river aeration device and aeration method

Abstract

The invention mainly discloses a landscape river aeration device and aeration method. The technical scheme is as follows: the device comprises a mounting rack, a gas inlet unit, a main pipeline, an aeration pipe and a rotary impeller, wherein the main pipeline is connected with a gas-liquid mixture and a bubble generator; the gas inlet unit comprises an air inlet pipe, a high-pressure water inlet pipe and an oxygen gas inlet pipe; the aeration pipe is composed of four aeration branch pipes which communicate with each other end to end; a connecting pipe is arranged between the two aeration branch pipes which are symmetrically arranged; the rotary impeller is installed on the connecting pipe; and the aeration branch pipes and connecting pipes are respectively provided with a sprayer on which a diaphragm is covered. The method comprises bubble aeration and surface aeration, has the advantages of simple installation, stable structure, favorable firmness and reasonable design, and is beneficial to implementing large-scale high oxygen solubility of the water body and enhancing the oxygen dissolution efficiency. By arranging the diaphragms, the aeration pores can not be easily blocked, thereby prolonging the service life of the aeration pipe, reducing the cleaning frequency and lowering the maintenance cost.

Description

technical field [0001] The invention relates to a landscape river aeration device and an aeration method. Background technique [0002] In recent years, as the pollution of rivers and lakes has become more and more serious, people have gradually shifted from a single urban sewage treatment to a large concept of river and lake treatment. There are various treatment methods for rivers and lakes, but the most effective method is the combination of biochemical and ecological treatment. One of the biggest problems to be solved in biochemical treatment is aeration in the river. The principle of aeration is to fully contact water and air to exchange gaseous substances and remove volatile substances in water, or to make gas escape from water, such as removing water Odor or harmful substances such as titanium dioxide and hydrogen sulfide, or oxygen into the water to increase the concentration of dissolved oxygen, to remove iron, manganese or promote aerobic microorganisms to degrade...

AI Technical Summary

Problems solved by technology

[0004] However, the aeration effect that the previous aeration devices can achieve is limited, the aeration range is small, and the pores in the bubble aeration method are difficult to produce micron-level bubbles, and the bubbles are easy to merge with each other in the water body to form large bubbles, which overflow the water surface. The specific surface area of ​​the gas is small, the residence time in the water body is short, the oxygenation efficiency is low, and the sludge and other pollutants in the water are easy to block the aeration holes, thereby reducing the aeration efficiency and increasing the cleaning cost; the dissolved oxygen content of the surface aeration method is less , the aeration effect is not good. In addition, in the turbulent river, the aeration device is not equipped with a fixed frame, and the aeration device is not fixed firmly. A little carelessness will easily cause the aeration device to be washed away by the water flow. Above the river, it will affect the aesthetics and performance of the river

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