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GATE Exam Questions

Q1: The treatment that should be given to the water from a deep tube well is :

A pre-settling only

B coagulation and flocculation only

C filtration only

D disinfection only

ANS:D - disinfection only

As the water comes from deep earth strata we don't need to filter it as there will be fewer coagulated particles and also we don't need to add flocculent, but it contains multivalent cations so we, may need to aerate but we can use this water by only disinfecting it.



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