Potable water
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5 Terms
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Potable water
Potable water is safe for drinking and meets quality standards. It undergoes treatment to remove pathogens.
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Screening and Grit Removal
Large materials (e.g., plastic bags, twigs) are removed by screening. Grit (small particles) settles out.
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Sedimentation
Water stands still in a tank, allowing heavier solids to sink (forming sewage sludge) and lighter matter (effluent) to float.
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Aerobic Digestion
Effluent is treated with aerobic bacteria to break down remaining waste.
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Anaerobic Digestion
Sewage sludge is broken down anaerobically by bacteria, releasing methane gas as a byproduct.
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