The diagram below shows how salt is removed from seawater to make it drinkable. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
The image illustrates the process of creating drinkable water from seawater by salt removal.
The process has four main steps, beginning with the pretreatment stage and ending with the storage stage.
In the first step, the seawater intake will undergo the pretreatment stage. After the first filtration, the unnecessary substance, known as filter backwash, will be returned to the sea while the processed water will resume with the next step. Following the previous step, the treated water will pass through the membrane with high pressure. Moreover, only water molecules are allowed to continue with the following step. However, impurities and salt, known as seawater concentrate, will be removed from the treated water before being sent back to the sea.
Subsequently, the processed water will enter the second treatment stage, where it will be post-treated with lime chlorine and fluoride. After the second treatment, the last step is to store the treated water to integrate the water supply system.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2023-05-30 | reverjae | 78 | view |
| 2021-07-21 | lili__nhnh | 81 | view |
- In many countries around the world rural people are moving to cities so the population in the countryside is decreasing Do you think this is a positive or a negative development f 56
- Technologies have changed the way children spend their free time Do you think the advantages outweigh the disadvantages 73
- Some people say that drug companies have a responsibility to spend money on researching medicines that will help people in poorer countries Others say the main responsibility of drug companies is to make money Discuss both these views and give your own op 73
- Fewer and fewer people today write by hand using a pen or pencil What are the reasons for this Is this a positive or a negative development 67
- Internet is becoming a dominant element in modern life What are the ad vantages and disadvantages of the Internet 78
Transition Words or Phrases used:
first, however, moreover, second, while
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 6.0 7.0 86% => OK
Auxiliary verbs: 7.0 1.00243902439 698% => Less auxiliary verb wanted.
Conjunction : 3.0 6.8 44% => More conjunction wanted.
Relative clauses : 1.0 3.15609756098 32% => OK
Pronoun: 1.0 5.60731707317 18% => OK
Preposition: 20.0 33.7804878049 59% => More preposition wanted.
Nominalization: 6.0 3.97073170732 151% => OK
Performance on vocabulary words:
No of characters: 849.0 965.302439024 88% => OK
No of words: 158.0 196.424390244 80% => More content wanted.
Chars per words: 5.37341772152 4.92477711251 109% => OK
Fourth root words length: 3.54539209256 3.73543355544 95% => OK
Word Length SD: 2.60867772775 2.65546596893 98% => OK
Unique words: 91.0 106.607317073 85% => More unique words wanted.
Unique words percentage: 0.575949367089 0.547539520022 105% => OK
syllable_count: 251.1 283.868780488 88% => OK
avg_syllables_per_word: 1.6 1.45097560976 110% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Article: 7.0 4.33902439024 161% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 3.0 3.36585365854 89% => OK
Performance on sentences:
How many sentences: 9.0 8.94146341463 101% => OK
Sentence length: 17.0 22.4926829268 76% => The Avg. Sentence Length is relatively short.
Sentence length SD: 27.9713257056 43.030603864 65% => OK
Chars per sentence: 94.3333333333 112.824112599 84% => OK
Words per sentence: 17.5555555556 22.9334400587 77% => OK
Discourse Markers: 4.33333333333 5.23603664747 83% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 1.0 1.13902439024 88% => OK
Sentences with neutral sentiment: 7.0 4.09268292683 171% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0713345482434 0.215688989381 33% => OK
Sentence topic coherence: 0.0402613424863 0.103423049105 39% => OK
Sentence topic coherence SD: 0.0537024239449 0.0843802449381 64% => OK
Paragraph topic coherence: 0.0634279921491 0.15604864568 41% => OK
Paragraph topic coherence SD: 0.0568419348361 0.0819641961636 69% => OK
Essay readability:
automated_readability_index: 12.6 13.2329268293 95% => OK
flesch_reading_ease: 54.22 61.2550243902 89% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 9.9 10.3012195122 96% => OK
coleman_liau_index: 13.57 11.4140731707 119% => OK
dale_chall_readability_score: 8.68 8.06136585366 108% => OK
difficult_words: 42.0 40.7170731707 103% => OK
linsear_write_formula: 6.5 11.4329268293 57% => Linsear_write_formula is low.
gunning_fog: 8.8 10.9970731707 80% => OK
text_standard: 9.0 11.0658536585 81% => OK
What are above readability scores?
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Rates: 78.6516853933 out of 100
Scores by essay e-grader: 7.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.