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• Pacific Islands have no fossil-fuel reserve; but they are rich in renewable energy including constant trade winds and strong solar radiation.
• Pacific islands have plenty of brackish groundwater.
• To protect marine environment requires high quality of aquaculture effluent
Background
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Water Table
Brackish
Water
Mean Sea Level
OceanCaprock
Saltwater
Dikes Freshwater Lens
Basal Water Lens on Hawaii Islands
Reference:Liu, C.C.K., and J. Dai (2012). Seawater intrusion and sustainable yield of basal aquifers, Journal of the American Water Resources Association (JAWRA), 48(5):861-870.
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Average wind speed on Oahu, Hawaii
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Solar map of Oahu, Hawaii
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Objective
To develop a renewable-energy-driven desalination and water Purification system for Pacific islands and remote communities where both freshwater and electricity are in short supply.
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(b) System Design of a Renewable-Energy-Driven RO System
RefgerenceLiu, C.C.K., Park, J.W., Migita, R. and Qing, G. (2002). Prototype Experiments of a Wind-Driven Reverse Osmosis Desalination System, Desalination, Vol. 150, No. 3, pp. 277-287.
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Windmill/pumping
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System Operation Control with Solar Energy