WATER TECHNOLOGY

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Across
  1. 1. - a measure of the amount of oxygen required to decompose organic matter in water.
  2. 2. - the total amount of dissolved substances in water.
  3. 8. - The formation of foam on the surface of water during treatment.
  4. 9. – The intercrystalline cracking of boiler metal(corrosion) caused by exposure to high concentrations of caustic soda.
  5. 10. - a measure of the amount of oxygen required to oxidize organic and inorganic matter in water.
  6. 11. - The concentration of hydrogen ions in a solution.
  7. 12. - A water softening process using zeolites to remove calcium and magnesium ions.
  8. 15. - A type of ion exchange process using zeolites to soften water.
  9. 17. - The gradual deterioration of a material, typically due to a chemical reaction.
  10. 18. - The formation of slim, loose and non adherent precipitate
  11. 21. - A type of membrane filtration that can remove smaller particles than traditional filtration.
  12. 24. - The process of adding chemicals to water to cause suspended particles to clump together.
  13. 25. - The process of allowing suspended particles to settle at the bottom of a container.
  14. 26. - The process of production of wet steam
  15. 27. - The removal of ions, such as calcium, magnesium, and other minerals, from water.
Down
  1. 1. - The point at which chlorine added to water is completely consumed by oxidizable matter and residual chlorine begins to form.
  2. 3. - The removal of minerals from water.
  3. 4. - Process of removing salt from seawater.
  4. 5. - A process that uses an electric current to remove ions from water.
  5. 6. - The removal of large debris from water using screens or grids.
  6. 7. OSMOSIS - A water purification technology that uses a semipermeable membrane to remove ions and molecules from water.
  7. 13. - Separation technique to remove suspended particles.
  8. 14. – The formation of hard and adherent precipitate
  9. 16. - A water treatment process that uses ion exchange resins to remove ions from water.
  10. 19. - The process of introducing air into water.
  11. 20. - The capacity of water to neutralize acids.
  12. 22. - Contamination of water by harmful substances.
  13. 23. - Reusing treated wastewater for various purposes.