Rural sewage horizontal flow air flotation device

Rural sewage horizontal flow air flotation deviceIt is a water treatment equipment that uses highly dispersed fine bubbles as carriers to adhere suspended flocs or oil droplets in water, forming a "bubble particle combination" with an overall density lower than water, and floating to the surface under buoyancy to achieve solid-liquid or liquid-liquid separation.

The name "advection type" comes from its water flow direction: the water to be treated (inlet) flows horizontally into the pool from one end, and the clarified water (outlet) flows horizontally out from the lower part of the other end, with the entire water flow path being horizontal. This is the main difference from structures such as "vertical flow" (upward and downward direction of water flow) and "dissolved gas reflux" (with complex reflux systems).

Highlight features and advantages

■ Simple structure and easy maintenance: No complex components such as pressure vessels, dissolved gas tanks, release devices, high-pressure pumps, etc., with few failure points and simple daily maintenance.

Low energy consumption: The vortex concave aerator directly sucks in air without the need for an air compressor or high-power reflux pump, and its energy consumption is usually lower than traditional dissolved air flotation (DAF).

Low investment and operating costs: simple equipment, relatively compact footprint, and minimal investment; The drug consumption is equivalent to DAF, but the power consumption is lower.

Easy to operate, automatic operation: fast start-up, can achieve fully automatic continuous operation (automatic slag scraping).

Good treatment effect: It can effectively remove suspended solids (SS), oil, colloidal substances, and some COD in wastewater, with a removal rate usually reaching 80% -95% (for SS and oil).

Key points of operation and maintenance

Pre treatment: A grille must be set up before entering the water to prevent large impurities from blocking the pipeline or damaging the aerator.

Chemical optimization: Adjusting the dosage and type of chemicals according to changes in water quality to ensure the formation of stable and dense alum flowers is the key to efficient operation.

Water level and slag scraping control: Adjust the water level to the appropriate height so that the floating slag can be smoothly scraped out without carrying clean water. Control the speed of the scraper to avoid water flow disturbance.

Regular maintenance: Regularly check the wear of the aerator impeller, the lubrication of the scraper chain, and clean the small amount of sludge that may have deposited at the bottom of the tank.

Rural sewage horizontal flow air flotation deviceIt is an air flotation technology with the core advantages of simple structure, energy saving and high efficiency, and easy maintenance. It performs well in treating low to medium concentration, oily, and light suspended solids wastewater, making it a cost-effective choice for many industrial wastewater pretreatment and some municipal applications.