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By: Alyssa Beerling, Frankie Victoria, Joey By: Alyssa Beerling, Frankie Victoria, Joey Seiler, Melissa LupinacciSeiler, Melissa Lupinacci
http://www.sciencedaily.com/releases/2010/04/100406093636.htm
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 waterPotential 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
Output of Desalination Plants
Impacts
BrineTwice as much saltToxic Chemicals
Treatment/Maintanence Heavy metals
Heated discharge
Subtle Changes in the marine environment can affect it extensivelyWorldwide ocean:
Temperature= 15 to 20 Degrees Celsius
Salinity= 30 to 37 pptAffects of brine
Salinity Chemicals
Thermal pollutionGroundwater is also at
risk
http://www.hardrainproject.com/hrpl?n=1178
Source Water AcquisitionMarine Water Intake Issues
ImpingementEntrainment
Brackish GroundwaterSustainability of the aquifer SubsidenceSeawater intrusion
Environmental Impacts from Concentrate ManagementCoastal Concentrate Discharge into Oceans,
Seas, EstuariesStudies of Effects of Concentrate on Specific
Marine OrganismsCase Studies
Sensitivity to Salinity (Rinne, 1971) Effects of Concentrate on Sea grass (Latorre, 2005)
Economic CostsTampa Bay Seawater
Desalination Plant150 million dollar
operation Yuma Desalting Plant
245 million dollar project
Costs of deliveryEfficiency of
desalination15%-50% efficient
Energy CostsSolubility properties
of saltDesalination in
AustraliaCoal as energy
sourceDesalination in
Saudi ArabiaOil as energy source
Environmental toll
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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