Question

Match the following impurities with the correct purification process.

• A. Screening
• B. Disinfection
• C. Sedimentation

Answer 1

Water treatment is a process in which water is made fit for consumption through different steps:

• Firstly, larger bodies like broken glass, plastic pieces, and wood, etc. are removed by passing water through a series of grids, in a process called screening.
• Then, water is passed through a sedimentation chamber in which sand and grit are settled down.
• Lastly, it is passed through a chamber to kill germs and microbes in a process called disinfection.