水处理的过程英语作文
    Water treatment is an essential process to ensure the quality of water for drinking, industrial use, and environmental sustainability. It involves various steps to remove impurities and contaminants from raw water.
    First, the water goes through a filtration process where large particles like sand, dirt, and debris are removed. This initial step helps clean up the water and prepares it for further treatment.
    Next, the water passes through a chemical treatment stage where chemicals are added to react with and remove specific contaminants. For instance, chlorine is often used to kill bacteria and viruses, making the water safer for consumption.
    After chemical treatment, the water undergoes a coagulation and flocculation process. Here, tiny particles suspended in the water are grouped together into larger clusters called floc. This floc is then easier to remove in the next step.
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    Sedimentation is the following step, where the floc settles to the bottom of the tank, allowing the clarified water to rise to the top. This separation of solids and liquids is crucial for purifying the water.
    Finally, the water goes through a disinfection process.

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