High-Efficiency Nanoscale Dry Air Flotation System

The high-efficiency nanoscale dry air flotation system is composed of a mixed flocculation reaction zone and a flotation main body. Wastewater initially enters the mixed flocculation reaction zone, where appropriate chemical agents are added. The reactor's unique internal swirling reaction method enables rapid and efficient mixing, flocculation, and reaction of the wastewater. After flocculation, the wastewater flows into the flotation main body. Here, a specially designed microbubble generator produces microbubbles with a diameter of 100 nanometers. These microbubbles form a "sponge layer" of 1000-2000 mm in the flotation separation zone. As the wastewater passes through the "sponge layer" from top to bottom, suspended solids, algae, and colloids are trapped by the "sponge layer," forming scum on the surface of the flotation main body. The scum is then removed by a scum scraper, while the clean water flows through the "sponge layer" and enters the clean water collection device at the bottom, achieving solid-liquid separation and water purification.

The system utilizes proprietary core technologies such as microbubble generation, subsurface capture, and laminar flow principles to efficiently separate suspended solids from wastewater. It combines dissolved air, wastewater, and chemical agents in a specially designed multi-stage batch coagulation reactor, producing "bubble-floc" with a specific gravity of less than 1, which flows into the flotation contact zone. Under the action of buoyancy, the "bubble-floc" rises to the liquid surface, forming scum and completing the solid-liquid separation.

A. Formation of Micro-Nano Bubbles:** Compressed air is released through the nanoscale bubble generator, producing a large number of microbubbles with diameters less than 100 nanometers.

B. Formation of Floc Particles:** Suspended solids in wastewater are one of the major pollutants. Floc particles originate from either naturally occurring particles in the water or those generated through chemical flocculation.

C. Formation of "Bubble-Floc":** Dissolved air water consists of a large number of microbubbles with diameters in the micro-nano range, appearing as an emulsion. The large surface area of these microbubbles allows them to fully attach to suspended solids in the water (commonly referred to as "blossoming"), forming "bubble-floc," which reduces their specific gravity and causes them to float to the surface, completing the solid-liquid separation.

A. The nanoscale bubble generator is made of special materials, resistant to high temperatures, high salinity, and highly corrosive liquids.

B. The system does not require reflux pumps, dissolved air pumps, or pressure tanks, avoiding secondary emulsification of oily wastewater and clogging issues in pressure tanks and release devices.

C. The system uses compressed air at pressures below 0.2 MPa.

D. The equipment occupies less space and consumes less energy compared to traditional dissolved air flotation systems.

- Equipment body

- Microbubble generator

- Air compressor

- Mixer

- Scum scraper

- Liquid level adjustment device

- Control system

This product introduction highlights the key features, working principles, and components of the high-efficiency nanoscale dry air flotation system, making it suitable for international markets.