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Home| Questions|Q 92762
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Mahima Singh
Mahima Singh
Asked: December 11, 20222022-12-11T23:07:20+05:30 2022-12-11T23:07:20+05:30In: Water Supply & Waste Water Engg

What is the process of wastewater treatment?

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    1. Vaibhav Verma
      2022-12-13T14:47:48+05:30Added an answer on December 13, 2022 at 2:47 pm

      The wastewater treatment process typically involves the following steps:

      1. Pretreatment: Screening and/or grit removal to remove large objects, sand, and other solid materials from the wastewater.

      2. Primary treatment: Sedimentation using tanks or basins to allow suspended solids to settle out of the wastewater.

      3. Secondary treatment: This is usually biological processes that remove dissolved organic matter from the water, such as activated sludge processes and trickling filters.

      4. Tertiary treatment: This is usually a physical/chemical process like filtration or oxidation to further remove contaminants, such as nitrogen and phosphorus compounds, from the wastewater before it is discharged into the environment.

      5. Disinfection: The final stage in most wastewater treatment processes to kill or inactivate pathogenic organisms before the water can be reused or discharged. Common disinfection methods include chlorination and ultraviolet radiation.

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