Vapor transfer is an important phenomenon in various thermally driven membrane processes such as membrane distillation (MD), membrane evaporation and membrane condensation. In this study, we explore the mass transfer phenomena in sweeping gas membrane distillation (SGMD) by systematically investigating the effects of operational parameters on the process performance. It is found that mass trans...

This study demonstrates the robustness and treatment capacity of a forward osmosis (FO)-membrane distillation (MD) hybrid system for small-scale decentralized sewer mining. A stable water flux was realized using a laboratory-scale FO-MD hybrid system operating continuously with raw sewage as the feed at water recovery up to 80%. The hybrid system also showed an excellent capacity for the remova...

• Membrane structural parameters were evaluated for use in predicting water flux. • Membrane constant containing non-coupled membrane properties was introduced. • Membrane constant requires simple measurements and inexpensive analytical equipment. • Membrane constant correlates well with experimental water flux. • Comprehensive collection of MD membrane properties and water fluxes made availabl...

In this study, a novel integrated forward osmosis - membrane distillation (FO-MD) module equipped with an isolation barrier carefully placed between the FO and MD membranes is experimentally investigated, its performance compared conventional hybrid module. The function of to osmotically thermally separate draw solution (DS) feed channels. A systematic approach adopted compare flux through both...

To ascertain membrane distillation (MD) as an emerging desalination technology to meet the global water challenge, development of membranes with ideal material properties is crucial. Functionalized carbon nanotubes (CNTs) were anchored to nanofibres of electrospun membranes. Covalent modification and fluorination of CNTs improved their dispersibility and interfacial interaction with the polymer...

Membrane distillation has shown great promises in desalinating various water streams. Significant progresses have been made the past decades owing to development of advanced membrane materials, such as superhydrophobic and omniphobic membranes. However, fouling scaling remains a critical issue for stable operation. This account summarizes contemporary theories formation their limitations explai...

Graphene oxide (GO)-enhanced membranes are being developed to solve major limitations in both reverse osmosis (RO) and membrane distillation (MD) technologies, which include high electricity thermal energy consumption. This study performed, for the first time, a life cycle assessment determine effects of using GO-enhanced on environmental impacts seawater desalination via RO MD. Four scenarios ...

We systematically assess the efficiency of chemical cleaning and report a simple but elegant approach to control scaling during membrane distillation (MD) of brine from reverse osmosis (RO) treatment of coal seam gas (CSG) produced water. Results reported here show that increased feed water salinity and the permeation of CO2 from the feed solution resulted in only a small and gradual decrease i...

Growing uncertainty in the future availability of freshwater sources has led to an increase installations for desalination seawater. Reverse osmosis (RO), currently most widely adopted technique, caused environmental concerns over high associated greenhouse gas emissions and generation large amounts chemicals-containing brine. Significant consumption electricity RO is additional challenge, part...

As a consequence of the increase in reverse osmosis (RO) desalination plants, number discarded RO modules for 2020 was estimated to be 14.8 million annually. Currently, these are disposed nearby landfills generating high volumes waste. In order extend their useful life, this research study, we propose recycling and reusing internal components modules, membranes spacers, membrane engineering dis...