1 / 42

Water management

Water management. Mohamed Wahby Hussien Alexandria University - Faculty of science Microbiology/Environmental sciences Bibliotheca Alexandrina – LYM – April 15, 2012. Contents. Water chemical and physical properties Water cycle Water importance Water uses Water availability

temira
Download Presentation

Water management

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Water management Mohamed WahbyHussien Alexandria University - Faculty of science Microbiology/Environmental sciences Bibliotheca Alexandrina – LYM – April 15, 2012

  2. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  3. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  4. Chemical composition

  5. Solvent • Water is called the "universal solvent" because it dissolves all substances

  6. Water pH

  7. Three states Water is unique in that it is the only natural substance that is found in all three physical statesliquid, solid, and gas

  8. Phase changes in water

  9. Difference between vapour and steam • Water vapour is the gas formed when water evaporates and becomes a gas it is invisible

  10. Difference between vapour and steam • Steam is a collection of small water droplets formed when water vapour condense in the air and it is visible as a cloud.

  11. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  12. Water cycle http://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/watercycle.html

  13. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  14. Water importance

  15. Water importance

  16. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  17. Water uses

  18. Water uses

  19. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  20. Water distribution in nature

  21. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  22. The driving forces and pressures on our water resources • Population growth, particularly in water-short regions • Major demographic changes as people move from rural to urban environments • Higher demands for food security and socio-economic well-being • Pollutionfrom industrial, municipal and agricultural sources.

  23. Contents • Water chemical and physical properties • Water cycle • Water importance • Water uses • Water availability • The driving forces and pressures on our water resources • Egypt … a crisis we don’t see

  24. Egypt challenges • Arid • About 98% of its fresh water resources from outside its international borders • Increasing population (86 million, 2025) • 1 more country is added to the Nile basin.

  25. Nile basin

  26. Nile basin

  27. * After the Gungli CanalBased on Abdel-Dayem (1994) and El-Kassas (1998).

  28. Distribution of water uses in Egypt, 2008 Future challenges for watermanagement in Egypt, Dia Al-Quesy, 2008

  29. Irrigation techniques Total: 3 422 178 ha in 2000 FAO Water Report 29 (2005)

  30. Water quantity per capita (m3) Water Issue in Egypt: Resources, Pollution and Protection Endeavors Hussein I. Abdel-Shafy1 and Raouf O. Aly2

  31. Water quantity per capita (m3) UN – bottom line Water Issue in Egypt: Resources, Pollution and Protection Endeavors Hussein I. Abdel-Shafy1 and Raouf O. Aly2

  32. Future challenges

  33. Future challenges

  34. Future challenges

  35. Almost two in every three people who need safe drinking water survive on less than $2 a day and one in three on less than $1 a day.

  36. Facts

  37. 2.5 billion people lack access to improved sanitation

  38. Improved sanitation facilities are estimated to result in an average reduction in cases of diarrhea of more than 33%

  39. Washing hands with soap has been found to reduce diarrheaby more than 40%

  40. What you can do? • Turn off the water while shaving • Scrape dishes instead of rinsing them • Purchase a high-efficiency washing machine and wash only full loads  • Water your lawn only in the early morning or evening to avoid losing water to evaporation • Constant repair and check ups

  41. Know the value of what you are using http://news.bbc.co.uk/2/hi/8628832.stm http://www.wateruseitwisely.com/100-ways-to-conserve/index.php

  42. Thank you

More Related