The diagram shows how water is processed to make it drinkable. Summarize the information by selecting and reporting the main features and make comparisons where relevant.
The diagram illustrates how water from a river is processed to make it drinkable through four key stages: clarification, filtration, disinfection, and distribution.
Overall, the process involves removing impurities, filtering out particles, and disinfecting water before distributing it to consumers. Waste materials are collected and disposed of responsibly during the process.
The process begins with water abstraction from the river, which is pumped to the clarification tanks. Here, large impurities are removed, and chemicals are added in a flash mixer to bind smaller impurities into sludge. The sludge is transferred to a holding tank, filtered using a press, and sent for disposal via a conveyor.
Next, clarified water moves to the filtration stage, where a rapid gravity filter removes finer particles. The filtered water is then sent to a chlorine contact tank for disinfection, where chlorine kills bacteria and germs.
Finally, clean water is stored in a reservoir and distributed to homes, schools, and workplaces via pipelines, ensuring it is safe for consumption. This method efficiently produces drinkable water and minimizes waste.
The essay is logically organized and follows the sequence of the process. However, some transitions between stages could be smoother.
Suggestions
- Use linking words to improve transitions between stages.
- Clarify connections between different parts of the process.
- Ensure all stages are equally detailed.
The essay uses a range of vocabulary accurately, with some less common words related to the process.
The essay demonstrates a good range of grammatical structures with minor errors.
The essay effectively summarizes the diagram and includes key stages and details. Some comparisons could be more explicit.
Suggestions
- Include more explicit comparisons between stages.
- Ensure all key features are highlighted.