Water Quality

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  • Created by: Jasmin
  • Created on: 03-04-13 15:34
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  • Water Quality
    • Rivers and groundwater enter reservoirs
      • Water passes through filter made out of fine sand to remove any remaining particles of mud/grit
        • Passes through mesh screen to remove leaves/twigs
          • Aluminium sulfate and limme added to water. Small particles of dirt stick together and sink to bottom - landfill site as mud
            • Water filtered through gravel beds to remove all solids
              • Chlorine added to kill bacteria
                • pH checked if neutral - good
    • Filter Jugs
      • Contain activated carbon- reduces levels of chlorine
      • Ion - exchange resin - removes metal ions
      • Silver - discourage growth of bacteria in filter
    • Distillation
      • Boil water - turns into gas - steam - condense - collect = pure water
      • Need a lot of energy - expensive
  • Passes through mesh screen to remove leaves/twigs
    • Aluminium sulfate and limme added to water. Small particles of dirt stick together and sink to bottom - landfill site as mud
      • Water filtered through gravel beds to remove all solids
        • Chlorine added to kill bacteria
          • pH checked if neutral - good

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