Process Diagram

Band 5+: The diagram below showsthe process of filtering raw water using a slow sand filter.

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Image for topic: The diagram below showsthe process of filtering raw water using a slow sand filter.

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The image depicts the filtration process through a slow sand filter showing raw water entering the break pressure chamber, passing through 60-90 cm thick sand and 20-30 cm thick gravel layers with underdrains, and exiting as filtered water.

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

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The diagram illustrates how water is purified by using a slow sand filter.

Overall, there are 3 main stages in the filtering process, starting with the entrance of water and ending with becoming fresh water.

In the initial stage, the raw water goes through a pipe before being contained by a break pressure tank. Then the water flows to the second tank where filtration occurs. At this stage, the water divides into 3 main layers, which is dirt and particles, sand layer and grave layer. The sand layer depth is 60-90cm, while it is 20-30cm for the grave layer.

After the filtration, the fresh water is collected by underdrains, which are installed in the bottom of the second tank. Before flowing into the third chamber.

Word Count: 125

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Overall Band Score

5.5

(+/- 0.5)

Vocabulary Complexity:
B1 - Intermediate
Using more sophisticated words could be beneficial.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 6

layer: 3

Try using synonyms for the above words

Task Response

The report adequately describes the process of water purification using a slow sand filter, covering the main stages and components. However, there's room for improvement in terms of detail and precision. For example, elaborating on the purpose of the break pressure tank or the specific function of each layer (dirt/particles, sand, gravel) would enhance the description. Additionally, mentioning the relative positioning and flow direction more explicitly could provide a clearer understanding of the process. Overall, the report is well-organized and easy to follow, but adding more specific details would elevate it further. The report falls short of the required 150 words.

Coherence & Cohesion

The report is generally well-organized and easy to follow. The description of the process is logical. However, consider adding more specific transition words to enhance the flow between stages. For example, using phrases like 'Following this' or 'Subsequently' can improve coherence.

Lexical Resource

The vocabulary is adequate for describing the process. To improve, try to incorporate more specific and technical terms related to water filtration. For instance, instead of 'dirt and particles,' you could use 'sediment' or 'particulate matter.' Also, vary your word choice to avoid repetition. Boost vocabulary complexity to elevate the overall score.

Grammatical Range & Accuracy

The report demonstrates a reasonable command of grammar, but there are a few areas for improvement. Pay attention to article usage (e.g., 'the' vs. 'a') and ensure subject-verb agreement. Review the report carefully for minor errors to enhance accuracy.

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Band 5+: The diagram below showsthe process of filtering raw water using a slow sand filter.

Check Your Answer On This Topic?

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Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

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Answers On The Same Topic:

The diagram below showsthe process of filtering raw water using a slow sand filter.

The diagram below showsthe process of filtering raw water using a slow sand filter.

The diagram below showsthe process of filtering raw water using a slow sand filter.

The diagram below showsthe process of filtering raw water using a slow sand filter.

Other Topics:

The diagram below gives information about stages of the process of producing of olive oil. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram shows the procedure for university entry for high school graduates. Summarise the information by selecting and reporting the main features

The images below explain the process of how pollutants from modern life become acid rain that in turn pollute the environment and the food chain. Summarise the information by selecting and reporting the main features, and make comparisons where relevent.

The diagram below shows the recycling process of aluminium cans. Summarise the information by selecting and reporting the main features, and make comparison where relevant.

The diagram below describes how a solar box oven cooks food

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