The flow chart gives information about the process of producing clean
water
from saltwater so that it can be used for drinking.
Use synonyms
Overall
, seawater has to follow four main steps to be drinkable, beginning with the pretreatment filter stage and ending with the storage stage.
At Linking Words
first,
Linking Words
water
Use synonyms
that is
taken from the sea must go through the pretreatment step before filtration. Under high pressure, the treated Linking Words
water
Use synonyms
then
is forced through the membrane. The membrane only allows Linking Words
water
molecules to pass, Use synonyms
thus
impurities and salt are eliminated. The waste of the first two steps, filter backwash, and seawater concentrate, are all given back to the sea Linking Words
while
the main product is continued in Linking Words
further
steps.
Linking Words
Subsequently
, the filtered Linking Words
water
is post-treated with lime, chlorine, and fluoride in the third processing stage. The product of Use synonyms
this
final main step is drinkable Linking Words
water
. Before being transferred into an integrated Use synonyms
water
supply system, clean Use synonyms
water
is stored in storage conditions.Use synonyms
Poseidous