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Related Concept Videos

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Distillation is a separation technique that takes advantage of the boiling point properties of disparate elements in a mixture. To perform distillation, we begin by heating a miscible mixture of two liquids with a significant difference in boiling points (at least 20°C). As the solution heats up and reaches the bubble point of the more volatile component, some molecules of the more volatile component transition into the gas phase and travel upward into the condenser, which is a glass tube...
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Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
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Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
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Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
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Advances in Membrane Distillation Module Configurations.

Lijo Francis1, Farah Ejaz Ahmed1, Nidal Hilal1

  • 1NYUAD Water Research Center, New York University-Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates.

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|January 21, 2022
PubMed
Summary
This summary is machine-generated.

Membrane Distillation (MD) configurations are advancing for energy efficiency. Novel designs focus on reducing heat loss and improving water flux, crucial for upscaling this temperature-driven process.

Keywords:
advanced membrane distillationbrine treatmentdesalinationmembrane modulespilot scale studieswater treatment

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Area of Science:

  • Membrane science and engineering
  • Water treatment technologies
  • Thermal processes

Background:

  • Membrane Distillation (MD) is a temperature-driven process for water reclamation, primarily focusing on membrane design.
  • Upscaling MD necessitates advancements in energy-efficient module designs and configurations beyond conventional types.
  • Optimizing system configurations for energy efficiency is critical for MD advancement across various applications.

Purpose of the Study:

  • To review advancements in modified and novel Membrane Distillation (MD) configurations.
  • To assess the impact of upscaling and pilot-scale studies on MD configurations.
  • To highlight challenges and opportunities in MD commercialization and application.

Main Methods:

  • Review of literature on modified and novel MD configurations.
  • Analysis of studies focusing on upscaling and pilot-scale MD systems.
  • Discussion of specific configurations like material gap MD, conductive gap MD, and vacuum-enhanced MD.

Main Results:

  • Novel MD configurations aim to reduce heat loss and enhance mass transfer for improved thermal efficiency.
  • Vacuum-enhanced MD and non-contact feed configurations show promise at lab scale.
  • Hollow fiber membrane pilot modules require further exploration, and standardized testing is needed for configuration comparison.

Conclusions:

  • Modified MD configurations offer improved thermal efficiency by mitigating temperature polarization and enhancing permeate flux.
  • Further research is needed for vacuum-enhanced and non-contact feed MD processes, alongside pilot studies of hollow fiber modules.
  • Standardized testing conditions are essential for comparing MD configurations and advancing commercialization.