Reflection of Acueduct

In the visit of the people of the Acueduct we have learned lots of things of the water. One thing we learned was that the transportation of the water is very difficould because first it is on a river, then it is cleaned by the acueduct people in huge tanks, then it goes on a tube and it arrives to our sewers on our houses.

Other thing i liked was that the acueduct purify the water with wastes that comes from our homes in different tanks outside the city and than the water is send to the bogota river without many obstructions or wastes.

I found this process very interesting because since the water enters the tube, the water takes 16 hours to arrive to our homes very clean and drinkable because they have already cleaned it.

It was a very good experience to talk about what do the most important enterprice of water in bogotá do to improve the quality of water in our city.

WATER

Water principal characteristics:

Water is a chemical substance that is composed of oxigen and hydrogen and is vital for all known forms of life.

In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseus state, water vapor or steam.

Clean, fresh drinking water is essencial to human and other life forms. Access to save drinking water has inproved steadly and substancially over the last decades in almost avery psrt of the world.

Earth's water percentage:

1.6% of water below grund in aquifers.
0.001% in the air.
97% in oceans.
2.4% in glaciers and polar ice caps.
0.6% rivers, lakes and ponds.
2.75% fresh water.
0.04% In the atmosphere.

Fresh and non-fresh water

Only 2.7% of the water on eath is fresh water, about 2/3 of its frozen in glaciers, a quarter is groundwater and only 0.005 percent of it is surface water. Fresh water lakes, most notably lake baikal in russia and the great lakes in north america, contain 7/8 of this fresh surface water. Swaps have most of the balance with only a small amount in rivers, most notably the amazon river.

Clean, fresh drinking water is essential to human and other life forms. Access to safe drinking water has improved steadily and substantially over the last decades in almost every part of the world. There is a clear correlation between access to safe water and GDP per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability. A recent report (November 2009) suggests that by 2030, in some developing regions of the world, water demand will exceed supply by 50%. Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70% of freshwater is consumed by agriculture.