dissolved air flotation
nounUK /dɪˈzɒlvd eə fləʊˈteɪʃən/
US /dɪˈzɑːlvd er floʊˈteɪʃən/
A way to clean dirty water by blowing tiny air bubbles through it so the dirt floats to the top.
The water plant uses dissolved air flotation to remove oil and tiny bits of dirt from the water.
OTHER MEANINGS
2. A separation process in which pressurized water releases dissolved air as micro-bubbles that carry particles upward.
Dissolved air flotation is widely used in industrial wastewater treatment.
3. A technique used in the food industry to separate fats and solids from liquids.
The dairy factory applies dissolved air flotation to clarify its process water.
4. A method in paper recycling for removing ink and contaminants from pulp.
Deinking plants rely on dissolved air flotation to lift ink particles out of the pulp.