Water Purification

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Across
  1. 5. A method used to make sea water potable
  2. 6. A method used to separate 2 different liquids
  3. 9. One of the final stages of purification, this stage kills bacteria
  4. 10. Normally a bad microorganism but can be used in a positive water to help make sewage clean enough to put into rivers
Down
  1. 1. 1 of 2 substances used to filter fresh water during purification
  2. 2. A process that separates the large solids from sewage
  3. 3. The name of the type of substance dissolved in sea water that makes it undrinkable
  4. 4. The temperature at which liquid water will evaporate into a gas
  5. 7. 2 of 2 substances used to filter fresh water during purification
  6. 8. This allows solid particles to settle and drop to the bottom of the tank