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Producing drinkable waters from seawater

Producing drinkable waters from seawater D2ljj
The diagram depicts the process which removes salt and other objects from seawater in order to make it drinkable. Overall, this process of desalination involves several distinct stages including filtration, purification, storage and distribution. As is shown in the illustration, seawater is pumped into the pre-treatment filter which separates debris such as garbage, marine life, and rocks from the water before sending them back to the sea as backwash. Meanwhile, the remaining water is sent to the next filter. There it is forced through a membrane at high pressure so as to allow water molecules to pass through while other minerals and contaminants are blocked and returned to the sea as seawater concentrate. Next, the freshwater is post-treated with lime, chlorine, and fluoride in order to kill any harmful bacteria and make it completely safe for use. Following this, the water is stored where it will then be distributed to the public bottles and faucets.
The diagram depicts the process which removes salt and other objects from seawater in order to
make
it drinkable.
Overall
, this process of desalination involves several distinct stages including filtration, purification, storage and distribution.

As
is shown
in the illustration, seawater
is pumped
into the pre-treatment filter which separates debris such as garbage, marine life, and rocks from the
water
before
sending them back to the sea as backwash. Meanwhile, the remaining
water
is
sent
to the
next
filter. There it
is forced
through a membrane at high pressure
so as to
allow
water
molecules to pass through while other minerals and contaminants
are blocked
and returned to the sea as seawater concentrate.

Next
, the freshwater is post-treated with lime, chlorine, and fluoride in order to kill any harmful bacteria and
make
it completely safe for
use
. Following this, the
water
is stored
where it will then
be distributed
to the public bottles and faucets.
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IELTS academic Producing drinkable waters from seawater

Academic
  American English
3 paragraphs
155 words
6.5
Overall Band Score
Coherence and Cohesion: 7.0
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
  • ?
    Include an introduction and conclusion
  • ?
    Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • ?
    Vary your linking phrases using synonyms
Lexical Resource: 6.0
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 6.5
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • ?
    Support ideas with relevant, specific examples
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