Which of the following statement is wrong regarding Iron salt?
(a) Iron salt produces less floc than Alum
(b) Detention time for sedimentation by using Iron salt as coagulant is less
(c) Handling of Iron salt requires some skills
(d) Iron removes H2S, taste and odor
I have been asked this question by my school teacher while I was bunking the class.
I'd like to ask this question from Sedimentation with Coagulation in section Sedimentation of Environmental Engineering