Question

Explain the role of the flocs during the sewage treatment.

State flocs role in biological treatment of sewage.

Answer 1

Clusters of suspended particles known as floes are created during the sewage treatment process when coagulants are introduced to wastewater. These coagulants enable colloidal particles to clump together by neutralising their negative charge. Through a process known as flocculation, floes aid in the removal of organic debris, suspended particles, and other pollutants from wastewater. Larger floes are easier to settle during sedimentation, which helps separate the solids from the liquid phase.