Method for degrading ammonia nitrogen waste water by using device for treating ammonia nitrogen waste water

Abstract

The invention discloses a device for treating ammonia nitrogen waste water and a method for degrading the ammonia nitrogen waste water by using the device. The device comprises an ultrasonic flash tower, wherein the tower bottom is communicated with the tower top through a liquid flow circulation system; the tower top is connected with a gas guiding device; a heater is arranged in the liquid flowcirculation system or the ultrasonic flash tower; and ultrasonic equipment is arranged in the ultrasonic flash tower. The method comprises the following steps: adjusting the pH value of the waste water, conveying to the device, turning on the heater, and heating the waste water; conveying the waste water into the tower top of the ultrasonic flash tower by using the liquid flow circulation system,starting to flash and performing ultrasonic treatment on the ammonia nitrogen waste water at the tower bottom by using the ultrasonic equipment at the tower bottom; guiding the generated ammonia by using the gas guiding device and collecting the ammonia; and continuously heating the waste water subjected to the flash ultrasonic treatment, returning to the liquid flow circulation system and performing more than two stages of treatment, so that treatment on the ammonia nitrogen waste water reaches the standard. The device is simple in structure, convenient to operate, low in investment and operation cost and high in ammonia nitrogen removal efficiency.

Description

technical field [0001] The invention relates to a sewage treatment device and a treatment method, in particular to a treatment device and a treatment method for ammonia nitrogen wastewater. Background technique [0002] With the development of modern industry, the industrial wastewater produced by it has increasingly become a more serious factor affecting the environment. Especially for the high-concentration ammonia-nitrogen wastewater produced by chemical industry, smelting and other industries, the wastewater not only has a wide range of sources, but also has a large amount of discharge, such as chemical fertilizers, smelting, coking, petrochemicals, pharmaceuticals, food, and landfills. concentrated ammonia nitrogen wastewater. The discharge of a large amount of ammonia nitrogen wastewater into the water body will not only cause eutrophication of the water body, cause the water body to be black and smelly, but also increase the difficulty and cost of water supply treatm...

AI Technical Summary

Problems solved by technology

Although this technology uses ultrasonic waves to improve the blow-off removal rate, there are still disadvantages such as large and complex blow-off devices, inconvenient operation, large gas consumption, and high investment and operating costs.

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