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Commercial Desalination

Commercial Desalination. By: Alyssa Beerling, Frankie Victoria, Joey Seiler, Melissa Lupinacci. http://www.sciencedaily.com/releases/2010/04/100406093636.htm. What is Desalination? . Misconception of Desalination .

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Commercial Desalination

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  1. Commercial Desalination By: Alyssa Beerling, Frankie Victoria, Joey Seiler, Melissa Lupinacci http://www.sciencedaily.com/releases/2010/04/100406093636.htm

  2. What is Desalination? Misconception of Desalination • is a process that involves the removal of brine and other minerals, such as chemical compounds from sea water or brackish water. • Desalination of sea and brackish water have offered a wide rang of human health, socio-economic, and environmental benefits by providing an unlimited and constant supply of high quality drinking water Potential Negative Impact • Impairment of coastal water quality • Affects on marine life • Air pollution emissions which are attributed to the energy and cost demand of the process

  3. Reverse Osmosis http://coolingtower-design.com/2011/01/25/reverse-osmosis

  4. Distillation http://www.ag.ndsu.edu/pubs/h2oqual/watsys/ae1032w.htm

  5. Output of Desalination Plants Impacts • Brine • Twice as much salt • Toxic Chemicals • Treatment/Maintanence • Heavy metals • Heated discharge • Subtle Changes in the marine environment can affect it extensively • Worldwide ocean: • Temperature= 15 to 20 Degrees Celsius • Salinity= 30 to 37 ppt • Affects of brine • Salinity • Chemicals • Thermal pollution • Groundwater is also at risk http://www.hardrainproject.com/hrpl?n=1178

  6. Source Water Acquisition • Marine Water Intake Issues • Impingement • Entrainment • Brackish Groundwater • Sustainability of the aquifer • Subsidence • Seawater intrusion

  7. Environmental Impacts from Concentrate Management • Coastal Concentrate Discharge into Oceans, Seas, Estuaries • Studies of Effects of Concentrate on Specific Marine Organisms • Case Studies • Sensitivity to Salinity (Rinne, 1971) • Effects of Concentrate on Sea grass (Latorre, 2005)

  8. Economic Costs • Tampa Bay Seawater Desalination Plant • 150 million dollar operation • Yuma Desalting Plant • 245 million dollar project • Costs of delivery • Efficiency of desalination • 15%-50% efficient

  9. Energy Costs • Solubility properties of salt • Desalination in Australia • Coal as energy source • Desalination in Saudi Arabia • Oil as energy source • Environmental toll

  10. Work Cited • http://www.theecologist.org/News/news_analysis/269784/desalination_pros_and_cons_of_a_typically_thorny_issue.html • http://www.resources.ca.gov/ocean/97Agenda/Chap5Desal.html • http://www.theoildrum.com/node/5155 • http://www.nytimes.com/2010/07/11/world/asia/11water.html?pagewanted=all • http://www.scientificamerican.com/article.cfm?id=why-dont-we-get-our-drinking-water-from-the-ocean • http://www.pacinst.org/reports/desalination/desalination_report.pdf •  http://www.sciencedirect.com/science/article/pii/S0011916407006005 • http://www.sciencedirect.com/science/article/pii/S0011916405006041

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