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In the treatment of waste water discharge, which treatment stage involves biological treatment?
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The correct answer is:
Secondary treatment
During waste water treatment :
(a) Primary treatment involves physical process of removing the suspended matters.
(b) Secondary treatment involves biological treatment.
(c) Tertiary treatment involves the removal of phosphate, nitrate and sulphate.
(a) Primary treatment involves physical process of removing the suspended matters.
(b) Secondary treatment involves biological treatment.
(c) Tertiary treatment involves the removal of phosphate, nitrate and sulphate.
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