In sewage treatment, the removal of large objects and particulate matter is achieved during

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The removal of large objects and particulate matter is achieved during primary treatment, which involves physical processes such as screening and sedimentation to remove larger materials and settle solids. Secondary treatment involves biological processes to break down organic matter, while tertiary treatment is a further treatment stage to remove remaining nutrients and pollutants. Quaternary treatment refers to additional treatment processes such as disinfection or advanced nutrient removal.

In Sewage Treatment, the Removal of Large Objects and Particulate