1, equipment introduction

The principle of the combination of mechanical aeration and chemical flocculation is used to deal with different types of sewage, which is an ideal physical and chemical equipment for wastewater treatment. In the light of some pollutants in the sewage treatment, the treatment of water can be recycled or standard discharge and biochemical treatment technology combined, can be standard treatment.

The system is mainly used in the treatment of industrial wastewater such as papermaking, chemical industry, printing and dyeing, food, beer, pharmaceuticals, slaughter and so on.

2, equipment structure

3, operating characteristics

Vortex cavitation air flotation is a good technology and equipment innovation, reasonable design, convenient operation, running economy, it directly from the wastewater in addition to solid suspended solids, air produced by the air. Cavitation aerator "microbubbles" directly into the sewage without the need for prior dissolved gas, and then through the bulk gas to the impeller to "micro bubbles" uniform distribution in the sewage, so the whole operation process of blocking will not happen phenomenon, do not need more pressure dissolved gas, air compressor and circulating pump and other equipment.

Not the sewage first entered aeration shell gas, and fully mixed microbubbles, micro bubble in the rising process will be suspended solids brought to the surface, scraping mud machine along the surface dynamic bank suspended solids scraping to tilt material on the metal plate, then push into the sludge discharge pipe, sludge discharge pipe horizontal propellers, the transceiver sludge into sludge collector. The propeller and the scraper are driven by the same motor. Power only 0.55kw, sewage purification before discharge will be through the overflow groove inclined plate below the overflow groove is used to control the water level in the flotation tank, ensure that liquid tank can not enter the sludge discharge pipe, open throat flow pipeline from aeration section along the flotation tank at the bottom of the extension, in generating micro bubbles at the same time, cavitation aeration opportunity in the return pipe of the pool, stretching, in generating micro bubbles at the same time, cavitation aeration opportunity in return pipe of the pool bottom forms a negative pressure zone, the negative effect will the waste water from the bottom of the pool is returned to the aeration zone, and then return to the air. This process ensures that in the case of inlet flow, air flotation is still ongoing.

4, the advantages of vortex concave air floatation system:

1 save investment

Cavitation air flotation without pressure vessels, air compressor, circulation pumps and other equipment, and therefore less investment in equipment.

Equipment covers an area of small, reduce the construction investment.

2 operating costs low

This system because there is no pressure vessel, air compressor, pump and other equipment, thereby saving power consumption..

Cavitation air flotation system is very easy to operate, there is no complex equipment, so the manual operation and maintenance of the workload is very small, reduce labor costs and maintenance costs.

3 treatment effect is remarkable

The removal rate of oil and solid suspended solids (SS) is more than 80%.

The removal rate of BOD and COD is more than 60%. The removal rate of BOD and COD can only reach about 35%.

Can promote the oxidation of sulfide, reduce the amount of sulfur in the sewage.

4 simple operation

The system is very easy to operate, there is no complex equipment; the entire system consists of only two parts, unlike dissolved air flotation including pressure vessels, air compressor, circulating pumps, and many other necessary equipment.

5, equipment parameters