What happens in the tertiary treatment for water pollution?(a) Sedimentation(b) Filtration(c) Sludge method(d) Removal of nitrates, phosphatesThis question was posed to me in an internship interview.This interesting question is from Environmental Issues topic in portion Environmental Issues of Biology – Class 12

What happens in the tertiary treatment for water pollution?(a) Sedimen

1.	What happens in the tertiary treatment for water pollution?(a) Sedimentation(b) Filtration(c) Sludge method(d) Removal of nitrates, phosphatesThis question was posed to me in an internship interview.This interesting question is from Environmental Issues topic in portion Environmental Issues of Biology – Class 12
Answer» Right answer is (d) REMOVAL of nitrates, phosphates For explanation I WOULD say: The tertiary treatment is the STAGE of wastewater treatment in which the water is disinfected chemically or physically prior to discharge into any water body. It involves the removal of nitrates, phosphates, disinfection to reduce the number of microorganisms in the water.

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