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Introduction
The dissolved air flotation machine dissolves a large amount of air in water under a pressure environment of 4-5kg/cm2 to form dissolved air water. As the working medium, Dissolved Air flotation device is suddenly decompressed by the releaser and released quickly, resulting in a large number of fine bubbles adhering to the coagulation process. After the reaction, the "alum" in the wastewater will float up quickly, thereby quickly removing pollutants in the water to achieve the purpose of water purification. It is mainly used to remove SS in the wastewater and reduce insoluble COD at the same time.
Working Principle
Before further dewatering, they are usually used to concentrate the remaining biological sludge, thereby reducing the polymer consumption in the dewatering system. Used for the clarification of biological sludge after the aeration tank, which can increase the concentration in the aeration tank to 8-10g/l.
Application
Dissolved air flotation technology has been widely used in water supply and drainage and wastewater treatment in recent years, and it can effectively remove light and floating flocs that are difficult to settle in wastewater. Large processing capacity, high efficiency, small footprint, and wide range of use. To
Dissolved air flotation machines are widely used in papermaking white water pulp recovery and clean water reuse; removal of various heavy metal ions; separation of oil refining wastewater and oil pollution; removal of impurities in tanning wastewater; removal of chromaticity and impurities of printing and dyeing wastewater; various types of sewage after biological treatment Solid-liquid separation of mud and membrane.
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