BRIEF INTRODUCTION

• PRELIMINARY TREATMENT

  Its objective is physical separation of large sized contaminants. This level/process include Screening, Sedimentation, Grit Chamber, Clarifiers Primary Treatment’s aim is removal of floating and settleable materials such as suspended solids and organic matter. In this treatment, both physical and chemical methods are used which includes: Flocculation, Coagulation, Neutralization, Primary Clarifiers.

• SECONDARY OR BIOLOGICAL TREATMENT

  The objective of this treatment is the further treatment of the effluent from primary treatment to remove the suspended solids and residual organics.

  In this step, biological and chemical processes like Activated Sludge Process, Aerated Lagoons Trickling Filters, Rotating Biological Contactor are involved.

• TERTIARY / ADVANCED / DISINFECTION TREATMENT

  Treatment The purpose of tertiary treatment is to provide a final treatment stage to raise the effluent quality to the desired level before it is reused, recycled or discharged to the environment. Process involved: Chemical Coagulation and Sedimentation, Ultrafiltration, Reverse Osmosis, UV Disinfection.