Micro-nano air floatation tank

Abstract

The invention discloses a micro-nano air floatation tank which comprises an air floatation head (1), a partition wall (2), a scum tank (3), a water inlet (4), a water outlet (5), a scum scraping machine (6) and a micro-nano bubble generator (7), wherein a cavity structure is arranged in a main body; the scum scraping machine (6) arranged at the top opening of the main body can remove scum produced on the water surface of a reactor in the fluidization air floatation process; the interior of an air floatation tank body is divided into a contact chamber (8) and a separation chamber (9) by the partition wall (2) to fulfill the full contact, adhesion and floatation of micro-bubbles and impurities in water. The micro-nano air floatation tank is low in failure rate, easy to maintain and good in scraping and air floatation effect, and has the outstanding advantages of low manufacturing cost and operation cost and the like.

Description

technical field [0001] The invention relates to an air flotation device, in particular to a micro-nano air flotation pool. Background technique [0002] Air flotation is a technology commonly used in wastewater treatment to remove oil. The air flotation treatment method is to introduce or generate a large number of fine air bubbles in the water to make them attach to the suspended oil particles, increase the buoyancy of the suspended particles, and use the principle of buoyancy to make the oil float on the water surface, thereby achieving the purpose of degreasing. [0003] The air flotation tank is divided into a contact chamber and a separation chamber by a partition wall to complete the full contact, adhesion and floating of the microbubbles and impurities in the water. The height of the existing air flotation partition wall is not enough, and the residence time of the water flow in the contact chamber is short. In this way, many air bubbles with oily stains cannot float...

AI Technical Summary

Problems solved by technology

The height of the existing air flotation partition wall is not enough, and the residence time of the water flow in the contact chamber is short. In this way, many air bubbles with oily stains cannot float to the water surface, but remain in the effluent water and are taken away by the effluent water, and the effect of removing oil stains is poor; There is no gap between the wall and the bottom of the pool, and the sludge deposited in the contact area cannot be cleaned. After a long time, a large amount of sludge accumulates, and it cannot flow away with the water until it is higher than the top of the partition wall; due to the sludge accumulation, the releaser is blocked

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