Explain coagulation - Surface Water, Civil Engineering

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Explain Coagulation

  • Surface waters must be treated to remove turbidity, color and bacteria
  • The traditional sand filtration is not sufficient in removing bacteria, viruses, soil particles and color
  • Object of coagulation (and flocculation) is to turn the small particles of color, turbidity, and bacteria into larger flocs either as precipitates or suspended particles which can then be removed
  • Typically coagulation is referred to a method to alter the colloids so that they will be able to approach each other and adhere to form larger floc

 


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