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Drinking water treatment
 

Drinking water treatment

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    Drinking water treatment Drinking water treatment Presentation Transcript

    • Local Drinking Water Treatment
    • Where Does Your Tap Water Come From?
      • Your drinking water is processed by a company called Aquarion.
      • They have several treatment plants. Your tap water is treated in Fairfield, CT and travels down a 36” pipe underground along the Post Road.
      • The water source is a local reservoir called Hemlock Reservoir in Fairfield.
    • Easton Reservoir Water Treatment Plant
    • Water Reservoirs in Our Area This reservoir connects with the next body of water.
    • Water Reservoirs in Our Area Your Water Comes from Here k Raw water is treated here to become safe tap water k
    • How your water is treated:
      • The Gate House controls the amount of water that enters the treatment plant.
      • The Raw Water Pumping Station helps water up hill. The pumps are not used when gravity can do the work.
      • At the Settling Tank a chemical, Alum is added to make impurities clump together. This is called COAGULATION.
    •  
    • Coagulation and Flocculation
    • Sedimentation Basin
      • After the impurities settle, clarified water overflows the Sedimentation Tank leaving the clumps of impurities behind.
      • Next the water is Filtered by letting gravity pull the water through ground up coal and sand.
      • In a new tank Chlorine is added to kill all organisms.
    • Final Additives Before Going to the Storage Tank
      • Adjust PH from 6 to 7 to protect pipes from corrosion.
      • Phosphates are added to prevent dissolving lead & copper pipes.
      • Fluoride is added for dental health.
      • The Storage Tank is filled at night to be ready for peak demand in the morning when you get up to flush, shower, cook, drink, brush teeth and wash dishes.
    • Water Tests Performed Daily:
      • Turbidity – how clear the water is
      • Ph – Kept neutral ph 7
      • Chlorine Levels checked at furthest location because it escapes into the air. Enough is added so the organisms do not grow along the pipeline.
      • Many other tests are also performed, 115,000 tests per year automatically or manually.
    • More Water Facts:
      • The storage tanks are not allowed to be less than half full to provide water for the Fire Fighter.
      • 50 million gallons are processed each day in Fairfield alone.
      • Water use is metered at your homes and read by a truck when it passes by your house.
    • WATER METERS
    • Some Homes Use Well Water
      • Larger properties can drill their own well.
      • Properties far from a water treatment plant must have a well.
      • Well water is pumped from the raw water that collects underground.
      • A home with well water will have a pressure tank.
      • Families may purchase water treatment equipment to filter, soften or neutralize.
    •  
    • Water Pressure Tank for homes with a well
    • Home Water Treatment Filters remove impurities Water Softeners Remove Dissolved Minerals that Harm Pipes Multi Purpose Water Treatment Systems Filter, Soften and Neutralize Water
    • HOMEWORK
      • TONIGHT FIND OUT WHERE YOUR WATER COMES FROM
      • LOOK FOR:
        • WATER METER
        • WATER PRESSURE TANK
        • HOME WATER TREATMENT EQUIPMENT
    • REVIEW WATER TREATMENT AT THIS LINK:
      • Links to the the water treatment cycle: http://www.epa.gov/safewater/kids/watertreatmentplant/storage.html
      • Stop at each treatment point to show where the water is along the treatment path. You may click on each treatment point on the image for a little information about that treatment point.
    • Image Source
      • http://www.thewatertreatments.com/tag/water