Process Diagram

Band 7+: The diagram below illustrates the process of water treatment for residential use. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

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Image for topic: The diagram below illustrates the process of water treatment for residential use. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

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The image illustrates a water treatment process: water intake flows to coagulation with coagulants added, followed by sedimentation to remove sediment, then proceeds to filtration, disinfection, storage, and finally distribution.

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

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The diagram illustrates how water is taken from lakes, and processed step by step to be able to distribute clean water to houses in six steps.

The first stage is that water is pumped from the lake and then this water intake is passed through two coagulants in a coagulation stage. The third stage is a sedimentation stage where water is separated from sediments to get a cleaner water. Sediments are removed through a pipe in this system. After that, water is passed through four-step filtration stage so that more purified water is received. In the next stage, viruses are disinfected not to make the water contaminated. Finally, usable water is received and stored well before distributing it to homes for everyday use.

Water is treated well in every stage so that the final product becomes usable and these steps are repeated every time.

Word Count: 144

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
B2 - Upper Intermediate
Opt for even more advanced words when appropriate.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 10

stage: 7

through: 3

Try using synonyms for the above words

Task Response

The report adequately covers the main stages of the water treatment process, presenting a clear overview. However, there's room for improvement in terms of detail and comparative language. To enhance the response, consider elaborating on the specific types of filtration used or the methods of disinfection. Also, incorporating more comparative language to highlight the changes in water quality at each stage would strengthen the analysis. The report falls short of the required 150 words.

Coherence & Cohesion

The report presents a clear overview of the water treatment process. The progression of stages is logically described, and the paragraphing is adequate. To improve coherence, consider using more varied cohesive devices to link ideas within and between sentences. For instance, instead of repeatedly using "the next stage" or "after that," try using more sophisticated transition words or phrases to indicate sequence or consequence.

Lexical Resource

The report demonstrates a satisfactory range of vocabulary related to the water treatment process. Terms like "coagulation," "sedimentation," "filtration," and "disinfection" are used appropriately. To enhance lexical resource, try incorporating more specific or technical vocabulary related to water treatment. For example, instead of "viruses are disinfected," you could mention specific disinfection methods or agents. Also, avoid redundancy by varying word choices; for instance, instead of repeatedly using "stage," consider alternatives like "phase" or "step."

Grammatical Range & Accuracy

The report generally demonstrates good grammatical control, with mostly accurate sentence structures and punctuation. However, there are a few areas where improvements can be made. For example, in the sentence "viruses are disinfected not to make the water contaminated," the phrasing could be improved for clarity and grammatical correctness. Consider rephrasing it as "viruses are disinfected to prevent water contamination." Also, ensure consistent verb tense usage throughout the report. Review the report carefully to identify and correct any minor grammatical errors or awkward phrasing.

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