Air flotation sewage treatment device

Abstract

The invention discloses a sewage air flotation treatment device, which comprises a cylinder, a dissolved air flotation device and an ultrasonic generator; the cylinder comprises a sewage chamber, an air flotation treatment chamber, an ultrasonic demulsification chamber and Clear water overflow chamber; the top of the sewage chamber is provided with a sewage water inlet, and a first partition perpendicular to the bottom of the cylinder is provided between the sewage chamber and the air flotation treatment chamber; the top of the air flotation treatment chamber is provided with A slag scraping mechanism, the slag scraping mechanism includes a sprocket, a chain and a scraper vertically arranged on the chain, a second partition perpendicular to the bottom of the cylinder is provided between the air flotation treatment chamber and the ultrasonic demulsification chamber, The side of the second partition located in the air flotation treatment chamber is provided with a slag discharge tank corresponding to the slag scraping mechanism; chamber, and an oil suction pump is arranged in the oil collection chamber.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a sewage air flotation treatment device. Background technique [0002] Sewage usually contains a large amount of impurities and oil. At present, the common electrolytic air flotation sewage treatment method uses insoluble anodes and cathodes to directly electrolyze wastewater, and the tiny bubbles of hydrogen and oxygen generated by electrolysis will intercept and float the flocculated suspended matter to the water surface to achieve For the purpose of solid-liquid separation, although this method has a good treatment effect, it has the problems of high electrolysis energy consumption and electrode plate loss, and high operating costs. Contents of the invention [0003] In order to solve the problems existing in the prior art, the object of the present invention is to provide a sewage air flotation treatment device with simple structure, low energy consumption, low ope...

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Problems solved by technology

[0002] Sewage usually contains a large amount of impurities and oil. At present, the common electrolytic air flotation sewage treatment method uses insoluble anodes and cathodes to directly electrolyze wastewater, and the tiny bubbles of hydrogen and oxygen generated by electrolysis will intercept and float the flocculated suspended matter to the water surface to achieve For the purpose of solid-liquid separation, although this method has a good treatment effect, there are problems of electrolysis energy consumption and electrode plate loss, and high operating costs.

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