https://padlet.com/rohaizad0907/cityloubg6ktrs3j List korang punya source kat sini orait en-us 2023-11-15 06:53:43 UTC 2023-11-15 12:16:21 UTC hello@padlet.com https://padlet.net/icons/png/1f423.png rohaizad0907 https://padlet.com/rohaizad0907/cityloubg6ktrs3j/wish/2790405126 Primary treatment removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation. Screens are made of long, closely spaced, narrow metal bars. They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. In modern plants the screens are cleaned mechanically, and the material is promptly disposed of by burial on the plant grounds. A comminutor may be used to grind and shred debris that passes through the screens. The shredded material is removed later by sedimentation or flotation processes.

]]> 2023-11-15 07:02:44 UTC https://padlet.com/rohaizad0907/cityloubg6ktrs3j/wish/2790405126 rohaizad0907 https://padlet.com/rohaizad0907/cityloubg6ktrs3j/wish/2790406021 Encyclopædia Britannica, inc. (n.d.). Primary treatment. Encyclopædia Britannica. https://www.britannica.com/technology/wastewater-treatment/Primary-treatment

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