Process Diagram

Band 6+: The diagram below shows the various steps that water undergoes as it passes through a water purification plant.

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Image for topic: The diagram below shows the various steps that water undergoes as it passes through a water purification plant.

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The image diagrams the steps in a water purification plant: Raw Water enters a Coagulation and Flocculation Basin where Coagulants are added. The water then moves to a Sedimentation Basin. Afterwards, a Polymer is added before the water goes through a Filter. Following this, Disinfectant and Fluoride are added, and the water enters a Disinfectant Basin. A substance for Corrosion Control is then added before the water is held in Treated Water Storage, from which it is delivered for Home Consumption.

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

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Note: Both the topic and the answer were created by one of our users.

The image illustrates the several steps required for water to undergo inside a water purification plant. Overall, the process commences with raw water coming from rivers and finishes with the final treated product ready for home consumption. There are 5 steps requiring special machines and water treatment euipment.

First of all, raw water from rivers are passed through specific type of pipes inside the plant, where coagulants are added. After that, it is passed through coagulation and flocculation basin. Before adding certain type of polymer, water goes through the sedimentation basin. After sedimentation and polymerization, filters are used to remove any pollutants in the water at this stage.

Disinfectant Fluoride is then added to the filtered water through the pipes. Subsequently, a disinfectant basin takes over to pass the water to almost its final stage. Before the treated water being stored in the storage place, corrosion control scheme is applied to it through the pipes of the plant. After final treatment, water is ready for home consumption.

Word Count: 167

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Overall Band Score

6.5

(+/- 0.5)

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

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 11

through: 5

plant: 3

final: 3

pipes: 3

after: 3

basin: 3

Try using synonyms for the above words

Task Response

The report adequately covers the main stages of the water purification process. However, there is room for improvement in terms of organization and detail. For instance, the report could benefit from a clearer structure, perhaps by grouping related steps together or providing more specific information about the purpose of each stage. Additionally, while the report mentions the key components and processes, it could be enhanced by including more precise details about the substances added and the equipment used. Overall, the report demonstrates a good understanding of the process, but could be improved with more detail and a more structured presentation.

Coherence & Cohesion

The report is generally coherent, but the organization could be improved. The flow between steps could be clearer with better use of cohesive devices. Consider using more varied transition words and phrases to guide the reader through the process. Paragraphing is adequate but could be more strategically employed to group related stages of the purification process.

Lexical Resource

The vocabulary is adequate for describing the process, but there's room for improvement in using more precise and varied language. For example, instead of repeatedly using 'passed through,' consider alternatives like 'flows into,' 'enters,' or 'is channeled to.' Expanding the range of vocabulary related to water treatment processes would enhance the report.

Grammatical Range & Accuracy

The report contains grammatical errors that affect clarity. For instance, subject-verb agreement errors ('water from rivers are passed') and incorrect article usage ('a disinfectant Fluoride') are present. While the overall meaning is understandable, correcting these errors and ensuring consistent grammatical accuracy would significantly improve the report. Focus on proofreading for common errors and varying sentence structures.

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Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

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