Water body oxygenation method and device based on ultrasonic waves

Abstract

The invention discloses a method and a device for oxygenating water on the basis of ultrasonic waves. The device is characterized in that an oxygenating pool is connected with an inlet end of a water pump, an air inlet tank is connected with an outlet end of the water pump, and a water and oxygen mixer is connected with the air inlet tank. The method includes filling a primary mixing barrel in the middle of the water and oxygen mixer with the water; outwardly permeating the water into a secondary mixing barrel; sufficiently vibrating and stirring the water by the aid of primary ultrasonic energy transducers on the outer side of a barrel wall of the secondary mixing barrel; pressing the water in the secondary mixing barrel into a tertiary mixing barrel via a joint on the top of the secondary mixing barrel under the effect of water pressures; outwardly permeating the water in the tertiary mixing barrel into a fourth-stage mixing barrel via water permeating through holes under the effect of pressures; sufficiently vibrating and stirring the water again by the aid of secondary ultrasonic energy transducers on the outer side of a barrel wall of the fourth-stage mixing barrel. The tertiary mixing barrel hollowly sleeves the secondary mixing barrel. The method and the device have the advantages that the contact time of oxygen and the water can be greatly prolonged, the contact areas of the oxygen and the water can be enlarged, and the water and the oxygen can be sufficiently mixed with each other.

Description

technical field [0001] The invention relates to the technical fields of sewage treatment and aquaculture, and in particular to a water body oxygenation device and a control method thereof, which increase the contact area between air and water to fully mix oxygen and water, thereby increasing the oxygen content of the water body. Background technique [0002] In the environmental protection industry, there are usually four effective methods for treating industrial sewage: physical methods, chemical methods, physical chemical methods, and biological methods. Among them, the biological method uses the metabolism of microorganisms in the wastewater to decompose the degradable organic matter in the water. It is economical, reliable and efficient, and is currently a widely used water treatment method. Microorganisms are divided into two types: aerobic and anaerobic. Among them, aerobic microorganisms must be able to function under aerobic conditions, and their growth is positively...

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Problems solved by technology

However, the shortcomings of the above-mentioned oxygenation method are: the oxygen content in the air accounts for 21% of the total air. If the air is simply passed into the oxygenation pool, due to the slightly soluble nature of oxygen, this oxygenation method The efficiency is not high, and it is difficult to meet the oxygen supply demand of the water body; in addition, mechanical movements such as gear rotation will cause damage to the fish body, and the power consumption is large, and the noise generated is also likely to affect the fish and slow down the growth rate; chemical oxygenates Although it can produce more oxygen, it is expensive, and it is easy to destroy the acid-base balance of the fish pond water environment in the water, thereby affecting the normal growth of fish or causing food safety problems

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