River nitrogen removal promoting device without external air source

Abstract

The invention discloses a river nitrogen removal promoting device without an external air source. An existing aeration device has the problems of high cost, continuous consumption of electrical energyand low service life. The device comprises a floating ring, a bogie, an end cam, a sliding rod, a rotating disc, a main rotating shaft, an air sealing block, aeration blades, a wind chasing plate andan air blocking block. The bogie includes a rotating ring and a support frame. The rotating ring and the floating ring constitute a rotating pair. The main rotating shaft is supported on the rotatingring. The wind chasing plate is fixed on the support frame. The rotating disc includes a blade base column and a sliding rod disc. The n aeration blades are arranged on the blade base column. The aeration blades are hollow. A plurality of aeration holes are formed in the aeration blades. The working profile of the end cam is composed of a push-out section, a transition section and a retraction section. The sliding rod disc is provided with n sliding rod through grooves uniformly formed in the circumference direction of the sliding rod disc. The device is driven by the wind, and the continuousaeration of the water in the river can be achieved without external power.

Description

technical field [0001] The invention belongs to the technical field of aeration devices, and in particular relates to a river channel nitrogen removal promotion device without an external gas source. Background technique [0002] With the continuous development of social economy, the discharge of waste from life and production into rivers is becoming more and more serious. Therefore, the pollution situation of rivers and lakes is more serious than before. The water bodies of seriously polluted rivers are not as good as natural reoxygenation. Oxygen consumption, dissolved oxygen is very low, even in anoxic or anaerobic state. [0003] Ammonia nitrogen is a nutrient in water, which can lead to eutrophication. It is the main oxygen-consuming pollutant in water and is poisonous to fish and some aquatic organisms. At present, when the ammonia nitrogen in the river channel exceeds the standard, the ammonia nitrogen content in the river channel is often reduced by biological nitro...

AI Technical Summary

Problems solved by technology

However, aerobic nitrification and denitrification bacteria need to consume dissolved oxygen in the process of degrading ammonia nitrogen

Therefore, the low dissolved oxygen content in the river greatly limits the efficiency of biological nitrogen removal

[0004] Conventional oxygenation equipment requires an external gas source and consumes electricity continuously, which has the problems of high cost and low lifespan

In addition, due to the small contact area of ​​the water body, most of the air injected into the bottom of the existing aeration device floats up and overflows, causing serious waste

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