Question

Which of the following treatments removes phosphates and nitrates from sewage?
a) primary
b) secondary
c) tertiary
d) digester

Answer 1

Hii.

here is your answer. .

Digester remove phosphate & nitrates from sewage.

hope it helps you ☺

Answer 2

hii. ....friend

the answer is here,

Digester removes phosphates and nitrates from sewage.

:-)Hope it helps u.