Download - USA Water Use with emphasis on Southern CA David Quiros Final Project Presentation March 15, 2011
Desalination in CA
• Greatest regional water “need”, especially southern CA• Imported water problems include:– Transport losses
– Increased total dissolved solids (TDS)
– Insecurity (transport over San Andreas fault)
• Water rights decreasing• Increased demand with greater population scale
• But will it substantially augment the water supply?
Index Part 1: Digital Elevation Model
Index Value Range
2 < 30 meters
4 30-60 meters
6 60-90 meters
8 90-120 meters
10 120-150 meters
12 150-180 meters
14 180-210 meters
16 210-240 meters
18 240-270 meters
20 > 270 meters
Index Part 2: Network Analysis, CoverageIndex Value Range
1 Within 20 Miles of Plant
20 Greater than 20 Miles from Plant
Index = Part 1 + Part 2Index Value Qualifier
3-10 Most Suitable
10-15 More Suitable
15-21 Suitable
21-40 Less Suitable
>40 Unsuitable
Final remarks
• Membrane separation with Reverse Osmosis makes this feasible
• Large energy costs in production and distribution, much of population areas unsuitable
• Marine coastal effects large with rationale for keeping of once-through cooling systems
• At $0.10/kWh, conservation is 5x cheaper than desalination, and price signals will help maintain populations, and is the suggested route.
Google Mashup of Original Data
• http://dquiros.bol.ucla.edu/mashup.html