Category Archives: Waste Water

Waste Water

Water pollution add substances or energy forms that directly or indirectly alter the nature of water body in such manner that negatively affects its legitimate uses.

By weight – Is 99.9% water – It is the 0.1% that we have added as waste. That 0.1% contains – Organic matter, Microorganisms (a few of which are pathogenic) and Inorganic compounds.

Waste water can’t be used without treatment because of:

  • High Oxygen Demand
  • High Biochemical oxygen demand
  • High Chemical oxygen demand
  • Presence of indicator organism Fecal coliform and Escherichia coli
  • Elevated level of Solids content e.g Total suspended solids and Total dissolved solids

After treatment waste water can be used for:

  • Irrigation purposes
  • Flushing
  • Washing of roads, cars, building etc

Waste water