Equipment for treating cyanobacterial water through micro-nano air floatation and working method

Abstract

The invention discloses equipment for treating cyanobacterial water through micro-nano air floatation and a working method, and belongs to the field of biological pollution and soil treatment. Comprising a water tank, a water outlet pipe is arranged on the right side face of the water tank, a water inlet pipe is arranged on the left side face of the water tank, the water tank is internally divided into a slag collecting tank, a water collecting tank and an air floatation tank, and sludge scrapers of chain structures are arranged at the tops of the slag collecting tank and the air floatation tank; a micro-nano generation device is arranged on the side face of the water pool and comprises a dissolved air tank, an inlet of the dissolved air tank is connected with a backflow pipe and a micro-nano dissolved air pump which are connected with the water collecting pool through a tee joint, and an outlet of the dissolved air tank is connected with a micro-nano spray head through a pipeline; after being adhered to the micro-nano bubbles, the blue-green algae float to the water surface, so that the blue-green algae are fed into the slag collecting tank by the mud scraper and are discharged through the mud discharging pipe. The device is simple in structure, convenient to use and high in cyanobacterial water treatment efficiency.

Description

technical field [0001] The invention relates to a device and a working method for treating cyanobacteria water by micro-nano air flotation, belonging to the field of biological pollution and soil treatment. Background technique [0002] The micro-nano aeration method refers to the generation of micro-nano bubbles at the bottom of the sewage pool. During the rising process of the bubbles, the pollutants adhere to the bubbles, so that the pollutants and the bubbles float to the water surface, and then the sludge scraper at the bottom of the pool removes the pollutants. Collection and removal. Micro-nano aeration technology has the advantages of small bubble size, long residence time in water, good mass transfer effect, and high interface zeta potential. It has been widely used in sterilization and agricultural production, and has become a research hotspot that has attracted much attention. [0003] The air flotation method refers to the use of highly dispersed tiny air bubbl...

AI Technical Summary

Problems solved by technology

[0005] However, the bubbles produced by the current pressurized air-dissolving method are only formed by increasing the pressure in the air-dissolving tank to form oxygen-enriched water, which is then poured into the sewage tank to form ultra-fine bubbles. Due to the low efficiency of water, the efficiency of bubble generation is low, and the particle size of the generated bubbles is large, and the removal efficiency of pollutants in water is low

[0006] In addition, there is currently no good treatment method for cyanobacteria in water, so it is hoped that through this new type of micro-nano air flotation pool, the water polluted by cyanobacteria will be sent to the air flotation pool, and removed by micro-nano air bubbles.

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