Process Diagram

Band 4+: how water is treated and purified before it becomes safe drinking water. The typical stages

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Image for topic: how water is treated and purified before it becomes safe drinking water. The typical stages

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The image is a flowchart titled 'WATER TREATMENT PROCESS' showing eight stages with icons. The process flows in sequence on the top row from left to right: RAW WATER, followed by PUMPING, then SCREENING, and ending with SEDIMENTATION. An arrow points down from SEDIMENTATION to DISTRIBUTION, which is on the far right of the bottom row. The flow on the bottom row proceeds from right to left, indicated by left-pointing arrows: from DISTRIBUTION to STORAGE, then to DISINFECTION, and finally to FILTRATION.

Given the complexity of the image, the above description may not be entirely accurate.

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The process above illustrates the stage that water undergo treatment to be one safe for drinking.

The first step is pumping where in this step raw water is pumped in and then screened to observe the kind of impurities it contains. Then it’s suspended to sedimentation where sediment are separated in different layers for easy removal.

Filtration process follows where water is filtered to remove all the impurities then it’s disinfected to kill all the microorganisms before it’s stored in a tank ready for distribution.

Word Count: 85

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Overall Band Score

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Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 3

where: 3

Try using synonyms for the above words

Task Response

The report adequately describes the water treatment process, covering the main stages in a logical sequence. However, it could benefit from more detail and precision. For example, elaborating on the types of impurities removed during screening and filtration, and mentioning the specific methods used for disinfection would enhance the response. Additionally, explicitly stating the cyclical nature of the process, with distribution leading back to potential raw water sources, could improve the overall clarity and completeness. The report falls short of the required 150 words.

Coherence & Cohesion

The report presents a general overview of the water treatment process, but the description of each stage could be more detailed and precise. The flow of the process is generally followed, but transitions between stages could be smoother. Consider using more cohesive devices to link ideas and improve the overall flow. For example, you could use phrases like 'Following this,' 'Subsequently,' or 'As a result' to connect the stages more logically.

Lexical Resource

The vocabulary used is adequate for describing the process, but there's room for improvement in terms of precision and variety. For instance, instead of saying 'observe the kind of impurities it contains,' you could use more specific terms like 'assess the level and type of contaminants.' Consider incorporating more technical vocabulary related to water treatment to demonstrate a better command of the subject matter.

Grammatical Range & Accuracy

The report contains several grammatical errors that affect clarity. For example, 'the stage that water undergo treatment' should be 'the stages that water undergoes for treatment.' Also, 'sediment are separated' should be 'sediments are separated' or 'sediment is separated.' Pay closer attention to subject-verb agreement, article usage, and correct tense usage. Proofreading carefully before submission can help catch these errors.

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