One of the solutions to current fresh water challenge is desalination using low-grade heat (solar radiation or waste heat), such as Air-gap Membrane Distillation (AGMD). Based on evaporation, induced by a temperature gradient across hydrophobic membrane, this process has an improved energy efficiency thanks inclusion air-gap limiting losses, while hindering mass transfer at same time. Understan...

Hydrophilic ceramic membranes (tubular and planar) made of TiO2 and Al2O3 were efficiently modified with non-fluorinated hydrophobic grafting molecules. As a result of condensation reaction between hydroxyl groups on the membrane and reactive groups of modifiers, the hydrophobic surfaces were obtained. Ceramic materials were chemically modified using three various non-fluorinated grafting agent...

s The use of brackish water in the Saloum Delta in Senegal can be made by combining the processes of desalination as a source of solar energy, usually thermal and photovoltaic processes for membrane distillation. But the demand for energy is growing; the use of solar energy can be a good solution, given the high solar potential in these areas. Different experiences around the world have shown t...

the growing scarcity of fresh water is driving the implementation of wastewater treatment and water reuse on an increasingly large scale. various methods have been developed and used for water reuse from wastewater; however, the membrane distillation (md) process, as a promising separation technology, has recently gained more attention. the md process is a non-isothermal membrane-based separati...

Membrane distillation (MD) is a useful method for the purification of difficult feedwaters but it cannot be applied in range industries due to pore wetting. In this work, graphene oxide (GO) laminate coatings are explored overcome wetting issues. Air gap MD (AGMD) configuration was considered, using 35 g L −1 NaCl solution with 150 mg (150 ppm) Triton X-100 surfactant as feed material. The GO d...

in this study, the influence of the salts as an additive on the performance of the membrane was investigated and an extensive work was performed to optimize pvdf hollow fiber membranes through a response surface methodology (rsm). the prepared membranes were characterized by sem, contact angle and lep measurement. then, the rsm was used for the optimization of surface pore size, porosity and hy...