Membrane distillation crystallization (MDC) is an emerging technology envisaged to manage challenges affecting the desalination industry. This can sustainably treat concentrated solutions of produced water and industrially discharged saline wastewater. Simultaneous recovery clean minerals achieved through integration membrane (MD). MDC has received vast research interest because its potential h...

Abstract Membrane distillation (MD) is a desalination technique that uses membrane to thermally separate potable water from sea or brackish water. The mass transport processes through the are commonly described by dusty gas model. These modeled assuming uniform, ideally cylindrical capillaries and adjusted for geometry including porosity tortuosity. tortuosity usually set 2 used as an adjusting...

Meat rendering operations produce stick water waste which is rich in proteins, fats, and minerals. Membrane distillation (MD) may further recover water and valuable solids, but hydrophobic membranes are contaminated by the fats. Here, commercial hydrophobic polytetrafluorethylene (PTFE) membranes with a hydrophilic polyurethane surface layer (PU-PTFE) are used for the first time for direct cont...

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...

Membrane distillation (MD) has unique advantages in the treatment of high-salt wastewater because it can make full use low-grade heat sources. The high salinity mine water western mining areas China is rich Ca2+, Mg2+, SO42? and HCO3?. In MD process, inorganic substances feed will cause membrane fouling. At same time, low surface tension organic which could be introduced process irreversible we...

Brines produced by desalination processes such as reverse osmosis (RO), electrodialysis reversal (EDR) and ion-exchange (IX) holds pollution potential for the water environment if not properly handled. These brines contain a high water content (95–98%) and chemicals that could possibly be recovered for reuse. Therefore, direct contact membrane distillation (DCMD) which has the potential for wat...

Membrane distillation (MD) has received much attention in recent years as an alternative technology for the removal of volatile compounds from industrial waters. The microporous hydrophobic membrane utilised in MD allows only vapour passing through and the process selectivity is essentially determined by the liquid-vapour equilibrium conditions existing at the liquid-membrane interface. In this...

Membrane distillation (MD) has the high potential to circumvent conventional desalination limitations in treating highly saline brines. However, performance of MD is limited by its low thermal efficiencyand temperature polarization (TP) effect. Consequently, driving force decreases when heat loss increases.In this study, we propose minimize TP through localized heating where thin feed channel w...

A methodology for predicting scaling in membrane distillation (MD), which considers thermodynamics, kinetics, and fluid mechanics, is developed and experimentally validated with calcium sulfate. The theory predicts the incidence of scaling as a function of temperature, concentration, and flow conditions by comparing the nucleation induction time to the residence time and applying an experimenta...