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Chemistry · L2 · Why Water Treatment Needs Four Steps

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Each step in water treatment removes a different kind of contaminant — no single step can do the whole job.

by @openstemUpdated Chemistry
Untreated water contains: floating debris, suspended grit, and pathogensWhat kind of contaminant?Screening removes itSedimentation and filtration remove itChlorination kills itWater free of debrisWater free of solid particlesWater free of pathogensSafe to drinkLarge floating debrisSuspended grit and siltBacteria and pathogens

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