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Membrane Distillation
Membrane DistillationIntroduction
Membrane distillation (MD) is a thermally driven membrane process in which a hydrophobic microporous membrane separates a heated feed solution and a cooled receiving phase. The temperature difference across the membrane generates a water vapor pressure gradient and drives water vapor transferring through the pores from high vapor pressure side to the low one.
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Schematic diagram of membrane distillation |
More Information
Applications
• Desalination: seawater, wastewater
• Concentration: brine, hot spring
• Ammonia-containing wastewater treatment and recovery
• Membrane crystallization
Features
• Concentration independent operation
• Low pressure operation
• High quality permeate
• High water recovery
• Waste heat could be used
Patents
• TW M526569
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VMD for hot spring concentration
VMD for brine desalination |
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