potable water

• what is potable water

  water that is safe to drink
• is potable water pure

  no
• what do you need low levels of in drinking water

  dissolved salts and microbes
• what dictates method used to obain potable water

  supplies of water and local conditions
• how is most potable water produced in the UK

  choose appropriate source, pass water through filter beds, sterilise
• where is most of the potable water ontrained from in the UK


  rain water provides water with low levels of dissolved substances (fresh water) which collects in the ground and in lakes and rivers
• what are the three ways to sterilise water

  chlorine, ozone and ultra violet light
• what is another method to obtain potable water if fresh water is limited

  desalination of salty water or sea water
• what process is used in desalination

  distillation or using membranes by reverse osmosis
• what are the issues with desalination and reverse osmosis

  require large amounts of energy