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What types of sewage can be treated by Air floatation device

2025-05-07
Air floatation device is suitable for treating many types of sewage. The following are some common types of sewage:
1. Industrial sewage
Oil-containing sewage: Petroleum, chemical, mechanical processing and other industries will produce a large amount of oil-containing sewage. Air floatation device generates tiny bubbles by introducing air into sewage, so that oil droplets adhere to the bubbles and rise to the water surface with the bubbles, thereby separating oil from water and effectively removing oil substances in sewage.
Heavy metal ion sewage: Sewage in electroplating, electronics and other industries often contains heavy metal ions such as chromium, nickel, and copper. Air floatation device can add suitable flocculants to make heavy metal ions form flocs, and then float to the water surface in combination with bubbles, so as to achieve the purpose of removing heavy metal ions and reduce pollution to the environment.
High-concentration organic sewage: Sewage generated by industries such as food processing and brewing contains a large amount of organic matter, such as protein, starch, sugar, etc. Air floatation device can combine these organic matter with bubbles to separate them from sewage, reduce the chemical oxygen demand (COD) and biological oxygen demand (BOD) of sewage, and create conditions for subsequent biochemical treatment.
2. Domestic sewage
Community domestic sewage: Community domestic sewage contains various suspended solids, organic matter, grease and other pollutants. Air floatation device can be used as a pretreatment unit to remove large suspended particles and grease in sewage, reduce the blockage and load of subsequent treatment equipment, and improve the efficiency of the entire sewage treatment system.
Urban comprehensive domestic sewage: The comprehensive domestic sewage accepted by urban sewage treatment plants has complex components. Air floatation device can play a role in its treatment process, separating fine suspended particles and difficult-to-precipitate organic matter in sewage, which helps to improve the effluent quality.
3. Other sewage
Printing and dyeing sewage: The sewage from the printing and dyeing industry has the characteristics of high chroma, high organic content, and complex composition. Air floatation device can remove dye particles and some organic matter in sewage, reduce the chroma and COD value of sewage, and reduce pollution to water bodies.

Pharmaceutical wastewater: The wastewater generated during the pharmaceutical process contains a large amount of pharmaceutical ingredients, organic solvents, and microorganisms. The Air floatation device can be combined with other treatment processes to separate and remove suspended impurities and some organic matter in the wastewater, thereby improving the water quality of the wastewater.

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