SME
Environmental Engineering · Problem type
Order of a conventional treatment plant
Use this for “Put filtration, coagulation, sedimentation, disinfection and flocculation in the order river water meets them.”
Put in order
Put the stages of a conventional water treatment plant in order, from intake to tap.
1
?
2
?
3
?
4
?
5
?
6
?
7
?
Assumptions
•
A conventional plant treating river or lake water; groundwater plants often skip the first stages.
•
Coagulant (alum or ferric salt) is mixed in fast; the floc then grows in gentle mixing.
•
Disinfection comes after filtration, so the chlorine meets clear water with few particles to shield microbes.
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