Define filtration. What are the objects of filtration
1 Answer

Q. Define filtration. What are the objects of filtration?

Filtration is a process of removing particulate and bacterial impurities which could not be removed in earlier processes, from water by passing it through a porous medium. It is an important stage in the purification of water.

Objects of Filtration:

  • To remove suspended, colloidal and other impurities which impart turbidity to water and untrapped by previous processes.

  • To reduce bacterial load by about 90$\%$ .

  • To produce sparkling and aesthetically attractive water.

  • To reduce odour and colour imparted by fine colouring matter, by arresting them in filter media.

  • To alter the chemical characteristics of water.

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