Conventional water treatment plants play a crucial role in ensuring that the water we consume is safe and free from contaminants. These plants follow a series of processes to treat raw water and make it suitable for drinking, industrial use, and other purposes. One of the key components of a conventional water treatment plant is the flow chart, which outlines the step-by-step process that water undergoes as it moves through the plant.
Let’s take a closer look at the typical flow chart of a conventional water treatment plant and understand the various stages involved in treating water.
Conventional Water Treatment Plant Flow Chart
Key Stages in a Conventional Water Treatment Plant Flow Chart
1. Coagulation and Flocculation: The first stage in the treatment process involves adding chemicals such as alum and polymer to the raw water. These chemicals help to destabilize particles in the water and form larger floc particles through a process called flocculation. These floc particles can then be easily removed in subsequent stages of the treatment process.
2. Sedimentation: After the coagulation and flocculation process, the water is allowed to settle in a sedimentation tank. During this stage, the floc particles settle to the bottom of the tank, forming a layer of sediment. The clear water on top is then ready to move on to the next stage of the treatment process.
3. Filtration: In the filtration stage, the clear water from the sedimentation tank passes through layers of sand, gravel, and activated carbon. These filtration media help to remove any remaining particles, bacteria, and other impurities from the water, ensuring that it is clean and safe to drink.
Conclusion
Conventional water treatment plants follow a systematic flow chart to treat raw water and make it safe for consumption. By understanding the key stages involved in the treatment process, we can appreciate the importance of these plants in providing clean and safe drinking water to communities.