Why is Ferric ammonium sulfate generally not used as a coagulant? – McqOptions

MCQOPTIONS

1.	Why is Ferric ammonium sulfate generally not used as a coagulant?
A.	It is very expensive
B.	It is dependent on the Dissolved oxygen present in the waste water
C.	It is a very slow process
D.	It works only at high pH
Answer» C. It is a very slow process

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