VPE 511: Environment and Environmental Hygiene (2+1)

INTRODUCTION

Water Purification

• The method employed depends upon quantum of water to be purified.

Large Scale Purification

• The aim is to ensure the absence of pathogenic organisms, other factors like relative hardness in the water.
• The treatment received by public supplies at the present time may comprise one or all of the following processes.
  • Storage
  • Filtration with or without the aid of coagulants.
  • Chemical sterilization

Small Scale Purification

• Boiling
• Chlorination
• Potassium Permanganate