DESALINATION TECHNOLOGY THERMAL MEMBRANE SOLAR TECHNICAL ECONOMICS ENVIRONMENTAL POLITICAL.

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Presentation transcript:

DESALINATION TECHNOLOGY THERMAL MEMBRANE SOLAR TECHNICAL ECONOMICS ENVIRONMENTAL POLITICAL

Membrane separation processes (UF and RO) –Superior treatment –Relatively modest capital and operating costs Major obstacles –Permeate flux decline Concentration polarization Fouling –Temperature effects not well understood PERFORMANCE OF SPIRAL WOUND MEMBRANES

Figure 1 Concentration Polarization

Figure 2 i = n i = n-1 i = 2 J o (t)-decrease in pure water i = 1 permeability due to fouling Ja1Ja1 Ja2Ja2 J(t p )- flux decline due to concentration polarization tptp tctc permeation cleaning membrane life-time -t t JoJo J Time Solvent flux across membrane Flux Decline Due to Fouling

HUMIDIFICATION/ DEHUMIDIFICATION PROCESSES

SEAWATER GREENHOUSE FRESH WATER FROM SEA AND BRACKISH WATER CROP PRODUCTION COOL HOUSE ENVIRONMENTALLY FRIENDLY

Research Approach

AREAS FOR COLLABORATION Student Training Demonstration Seawater Greenhouse Seawater Greenhouse Condenser USDA/USDI RO membrane fouling Applied/Fundamental/Social/Environmental

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