Water Treatment

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Across
  1. 3. The first stage of treatment after pretreatment of wastewater
  2. 4. A chemical that can be used to disinfect water
  3. 6. A type of separation where a liquid mixture passes through a screen such as the 'bar screen' in wastewater pretreatment
  4. 9. A common use for the dried sludge removed from wastewater during treatment
  5. 10. The process that lets sediments settle to the bottom of a tank for collection
Down
  1. 1. Any water that goes down a drain or toilet in your house
  2. 2. One of the creek dams where Ballina gets its water
  3. 5. A chemical added to drinking water to help prevent tooth decay
  4. 7. One of the creek dams where Ballina gets its water
  5. 8. A chemical that can be used to disinfect water