Horizontal flow dissolved air flotation machine for papermaking wastewater treatment equipment

Horizontal flow dissolved air flotation machine for papermaking wastewater treatment equipmenttype

Horizontal flow dissolved air flotation equipmentThe dissolved air flotation machine dissolves a large amount of air in water under a pressure environment of 2.5-4kg/cm2, forming dissolved air water. As the working medium, it is suddenly depressurized through a release device and rapidly released, producing a large number of fine bubbles that adhere to the "alum flowers" in the wastewater after coagulation reaction, causing the flocs to quickly float up and remove pollutants from the water, achieving the purpose of water purification. It is mainly used to remove SS from wastewater and reduce insoluble COD.

Horizontal flow dissolved air flotation equipmentThe principle of water is to pressurize the air in the dissolved air tank to dissolve more air in the water, and then to precipitate a large number of micrometer sized small bubbles in the water through pressure stabilization. During the process of small bubbles floating up, they will adsorb suspended solids and flocculent substances in the sewage and float up together. The dissolved air flotation machine uses this principle to clarify water quality.

Dissolved air flotation technology has been widely used in water supply, drainage, and wastewater treatment in recent years. It can effectively remove light flocs that are difficult to precipitate in wastewater. Large processing capacity, high efficiency, small footprint, and wide range of applications.

Dissolved air flotation machines are widely used for the recovery of white water pulp and the reuse of clean water in papermaking; Removal of various heavy metal ions; Separation of refinery wastewater and oil pollution; Removal of impurities from tannery wastewater; Removal of chromaticity and impurities from printing and dyeing wastewater; Solid liquid separation of sludge and membrane after various biological treatments.

Winter maintenance precautions

1、 Check whether the inlet sewage pump and reflux pump of the dissolved air flotation machine are frozen during work every day, including lubrication and oil filling of the water pump, tightness of the packing, sealing of the bottom valve, and oil filling of the air compressor.

2、 Check whether the air filter of the air compressor has frozen, in order to determine whether the air compressor is operating normally and whether there are any noises or heating phenomena.

3、 Check whether the transmission part and scraper of the slag scraper have hardened or broken in cold conditions to avoid affecting its use.

4、 Pay attention to the mixing and storage tanks of coagulants to avoid freezing, and conduct small sample tests frequently.

5、 Inspect the valve pipelines of each device to prevent blockage, and place them in the "on" or "off" position as required.

6、 When stopping the machine, the water must be drained completely to avoid freezing and blockage

Horizontal flow dissolved air flotation machine for papermaking wastewater treatment equipmenttype