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Dissolved Air Tank
The dissolved air tank is the core container in the DAF system for the full mixing of air and water. Its structural design directly affects the dissolved air efficiency. Through a reasonable air and water distribution structure, the pressurized air and water are brought into full contact, promoting efficient air dissolution and forming saturated dissolved air water. A high-quality dissolved air tank possesses excellent pressure resistance and corrosion resistance, maintaining a stable dissolved air environment and preventing pressure fluctuations or water corrosion from affecting the dissolved air effect, thus providing a sufficient source of microbubbles for subsequent air flotation separation.
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Dissolved Air Release Device
The dissolved air release device is a key component in converting saturated dissolved air water into microbubbles. Its performance determines the morphology and distribution of the bubbles. Through a special flow channel design, the pressure of the dissolved air water drops sharply during the release process, causing the dissolved air to quickly precipitate and form fine, uniform microbubbles. The release device must have good anti-clogging and anti-scaling capabilities to ensure long-term stable release of microbubbles. Simultaneously, the material must be suitable for different water qualities to avoid damage from corrosive substances and ensure efficient adsorption and binding of bubbles with water impurities.
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Booster Pump
The booster pump provides power to the entire dissolved air system and is the core equipment for maintaining dissolved air pressure. Its function is to pressurize the water to be treated and send it into the dissolved air tank, creating the necessary pressure conditions for air dissolution. A high-quality booster pump should have stable pressure output capability, minimal pressure fluctuations during operation, and high energy efficiency and durability. The pump body material must be selected according to the water quality characteristics to avoid wear and blockage caused by impurities or corrosive substances in the water, ensuring the continuous and stable operation of the dissolved air system.
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Scum Scraping Device
The scum scraping device is responsible for timely removal of the scum that accumulates on the water surface after air flotation separation, ensuring the continuity of solid-liquid separation. The device typically consists of a scraper blade, a transmission mechanism, etc. It must operate smoothly with moderate scraping force to thoroughly remove scum without damaging the air flotation layer on the water surface. The scum scraping device must possess excellent corrosion resistance and wear resistance, adapt to the characteristics of scum under different operating conditions, prevent scum accumulation from affecting the effluent quality, and be easy to maintain to minimize downtime and ensure the treatment efficiency of the DAF system.
Each component of the DAF system plays a critical role in ensuring efficient air flotation separation and reliable wastewater treatment performance.
