The pulp and paper industries face the problem of being among the biggest environmental polluters. To reverse this image, they invest in constantly improving the treatment of their effluents.
As water is an essential component in this production system, a large amount of waste is also generated.
The dissolved air flotation process in water and effluent treatment is one of the most widely used alternatives by companies in this sector today. The main objective of flotation is to remove contaminants to increase the purity and appearance of the product.
This practice is efficient in removing suspended, liquid and colloidal particles, suspended solids, turbidity, color and total solids, in which the solids are retained by adhering to air bubbles.
The waste of water, containing fibers that can be reused, means a loss of raw material and money for the industry, since it increases the costs of acquiring material and disposing of the final residue in the environment, which could be reused.
> Source: Fast Cases
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