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How is wastewater Purified to create safe potable water?

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How is wastewater Purified to create safe potable water?

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First, the sewage department captures wastewater from toilets, sinks and showers. It runs the water through a standard sewage treatment plant, where it comes out clean. They than send it through a system of pipes, filters and tanks, where it undergoes a purification process.

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Some contaminants that need to be removed from wastewater include salt, prescription drugs, unwanted chemicals, bacteria, viruses and any other living contaminants.

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they filter the sewage water because it contains salt, prescription drugs, chemicals and other bacterias and unwanted virus's 

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they filter the sewage water because it contains salt, prescription drugs, chemicals and other bacterias and unwanted virus's 

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After learning about the processed we have all come to a conclusion that we would drink the purified water. We learned that after the process, the water is so pure that they have to add minerals to add flavor to the water. It seems safe and a great way to reuse water instead of wasting it.

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Yes

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they use a ultraviolet light and hydrogen peroxide and they add minerals 

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they use a ultraviolet light and hydrogen peroxide and they add minerals 

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As sewage enters a plant for treatment, it flowsthrough a screen, which removes large floatingobjects such as rags and sticks that might clogpipes or damage equipment. After sewage hasbeen screened, it passes into a grit chamber, wherecinders, sand, and small stones settle to the bottom.A grit chamber is particularly important in communities with combined sewer systems where sand orgravel may wash into sewers along with stormwater. Jake, Evan Mc., NateDawg377

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As sewage enters a plant for treatment, it flowsthrough a screen, which removes large floatingobjects such as rags and sticks that might clogpipes or damage equipment. After sewage hasbeen screened, it passes into a grit chamber, wherecinders, sand, and small stones settle to the bottom.A grit chamber is particularly important in communities with combined sewer systems where sand orgravel may wash into sewers along with stormwater. Jake, Evan Mc., NateDawg377

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zinc,volile,falium,sodium chloride etc

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Sticks, Rags, Medicine, "Waste", Bleach, Your dead goldfish, etc.

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Sticks, Rags, Medicine, "Waste", Bleach, Your dead goldfish, etc.

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Primary: Mechanical processes

Removes larger solids

20-30% of BOD and 50-60% of suspended solids

Secondary: Biological treatment involving microbes

Removes dissolved organic matter

85% of BOD and suspended solids

Tertiary: Disinfection (with chlorine) and UV treatment

Wetlands

Removes 90% of all impurities