Case alttag

Primary Wastewater Treatment

Primary treatment is a plain screening, sedimentation or flotation process to remove suspended organic and inorganic solids from the sewage. Chemicals are sometimes used to remove finely divided and colloidal solids.

Objectives of Primary Treatment

  1. To reduce the strength of wastewater to the extent 30% to 90%.
  2. To remove settleable solids by 80% to 90%.
  3. To remove FOG by 80% to 90%.
  4. To reduce BOD/COD by 30% to 90%.
  5. To make the wastewater fit for further treatment process.

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