The diagram below shows how salt is removed from the sea water to make it drinkable. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

#salt #sea #water #information #features #comparisons

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The diagram illustrates the stages of making seawater suitable for drinking by reducing the salt. In general, desalination is a cycled process which consists of a number of filtering stages starting from pre-treatment filtering and submitting with the storage stage.

Firstly

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, the saltwater goes from the sea through a pretreatment filter before the main filtration.

Next,

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under high pressure, the

water

Use synonyms

is forced through a membrane, where impurities and salt molecules are eliminated.

After

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this

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stage filtered

water

Use synonyms

particles pass

further

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stages,

whereas

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filter backwash and seawater concentrate return back to the sea. In the third stage, the filtered

water

Use synonyms

is post-treated with lime, chlorine and fluoride for its disinfection,

as a result

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getting the potable

water

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Finally

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, desalinated

water

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is stored in a reservoir and

after

Change preposition

apply

show examples

served to people by an integrated

water

Use synonyms

supply system.

Submitted by zakhra.aliyeva2001 on Sun Nov 12 2023

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Common mistake: Your writing should be 150-250 words.

Basic structure: Change the third paragraph.

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Basic structure: Change the fourth paragraph.

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Vocabulary: Replace the words water with synonyms.

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Vocabulary: Only 3 basic words for charts were used.

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Vocabulary: Use several vocabularies to present the data in the third paragraph.

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Vocabulary: Use several vocabularies to present the data in the fourth paragraph.

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8
Linking words
meeting the goal of 7 or more
1
Word repetition
meeting the goal of 3 or fewer
1
Grammar mistakes
detected issues

0123456789.0505

Overall Band Score

Coherence and Cohesion: 9.0

Logical structure

Single idea per paragraph

Introduction & conclusion present

Accurate linking words

Variety in linking words

Lexical resource: 4.0

Varied vocabulary

Accurate spelling & word formation

Grammatical Range: 8.0

Mix of complex & simple sentences

Clear and correct grammar

Task Achievement: 4.0

Complete response

Suitable writing tone

Appropriate word count

4 paragraphs

136 words

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Topic Vocabulary:

desalination
intake
pre-treatment
filtering system
reverse osmosis
semi-permeable membrane
dissolved salts
impurities
post-treatment
minerals
palatable
distribution

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