Increasing Water Availability: 5 Sustainable Methods and Texas' Colorado River
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Explore 5 ways to increase water availability sustainably, such as building more dams, using groundwater, transferring water, desalination, and conservation. Learn about Texas' Colorado River and its impact on water supply.
Increasing Water Availability: 5 Sustainable Methods and Texas' Colorado River
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Presentation Transcript
Welcome! Please get out your thinking map homework Please read the board
5 Ways to increase water availability • Build more dams – trap it upstream • Use more groundwater • Transfer water – pipe it long distances • Desalinate water – take the salt out of sea water • Reverse osmosis • Distillation – boiling, then trapping the fresh steam • Conserve water
5 Ways to increase water availability (sustainably?????) • Build more dams – trap it upstream • Use more groundwater • Transfer water – pipe it long distances • Desalinate water – take the salt out of sea water • Reverse osmosis • Distillation – boiling, then trapping the fresh steam • Conserve water
Three Gorges Dam • Yangtze River, China • One of the world’s largest power plants • Displaced 1.3 million people and flooded cultural/archeological sites • Controls flooding downstream
Disadvantages Dams Advantages
Use more Groundwater – Ogallala Advantages Disadvantages
Desalination Well, DUH!!!!
Desalination in Tejas • City of Seminole Project • Cost: $1, 625, 000 • Desalinating brackish groundwater from Dockum Aquifer using wind-power.
CONSERVATION!!!!! Too much to say! We’ll save it for Friday!
Two major topics: • Water SUPPLY • Water POLLUTANTS
Have you ever been in a place where you can’t drink the water? clean water
Pollutant of the Day! • Pathogens
World Health Organization Statistics: Concerns: Improvements: • 2.6 billion people do not have adequately clean water • rural habitants are 5 times less likely to use improved drinking water than those in urban centers. • 84% of the population in developing regions are using an improved source; • in 2000, 1 billion more people used such a source than in 1990.
UN-Water Decade Programme on Advocacy and Communication • One out of four urban dwellers does not have access to improved sanitation facilities. • 90% of all waste water in developing countries is discharged untreated, polluting rivers, lakes and seas. • Every day, 2 million tons of sewage and other effluents drain into the world's waters
Lake Conroe and Lake Houston: • E. Coli bacteria – double the limit set by state
Other Bacterial pathogens • Typhoid – diarrhea, severe vomiting, inflamed intestines • Cholera – diarrhea, severe vomiting • Dysentery – diarrhea, usually only fatal in infants
'Fiery serpent' ... A guinea worm emerges from the leg of a south Sudanese girl. (Reuters: Skye Wheeler, file photo)
How are all of these passed on? • Overloaded sewage treatment plants • Direct dumping of sewage in communities • Lack of water treatment plants
LifeStraw Swiss-based Vestergaard Frandsen for tourists and people living in developing nations. There are several models of the product: LifeStraw Personal filters a minimum of 700 litres of water, enough for one person and one year. LifeStraw Family filters a minimum of 18,000 litres of water, providing safe drinking water for a family for more than two years. It removes 99.9999% of waterborne bacteria, 99.99% of viruses, and 99.9% of parasites. LifeStraw Personal kills 99.9999% of waterborne bacteria and 98.5% of viruses.
Two types of sources • point sources – specific location that can be identified • nonpoint sources – spread out, may not be easy to identify.
Storm drains Carry water from streets to local bayou/water way The drain is just for rain!