The improvement of an innovative dual membrane contactor process for treatment of combined hygiene and metabolic wastewater was investigated. Flux and solute rejection in the combined direct osmosis/osmotic distillation (DO/OD) process were enhanced by incorporating membrane distillation (MD) concepts into the process. Two new configurations were investigated: DO/MD, in which the driving force was

Providing clean water to a rapidly growing population is an issue that currently getting lots of attention offer sustainable solution for scarcity. Membrane distillation (MD) one the latest technologies provides great potential in treatment. Even though there tremendous amount research done during past two decades on membrane distillation, long-term use this process still restricted by fouling....

Membrane Distillation (MD) is a membrane-based operation able to give 100% theoretical ions rejection and to efficiently work with high concentrated brines. Both features make MD of interest for the purification of wastewater, the production of ultra-pure water and the concentration of brines produced in desalination. MD, also integrated with other membrane operations, can be a valuable way to ...

Membrane technology is growing very fast and it is used in several main applications from desalination, water and wastewater treatment to medical, biotechnology and gas separation field. Different membrane processes are applied depending on the applications from more traditional pressure-driven membrane processes (Microfiltration, MF; Ultrafiltration, UF; Nanofiltration, NF) to more advanced on...

Wastewater treatment for indirect potable reuse (IPR) is a possible approach to address water scarcity. In this study, novel membrane bioreactor–membrane distillation (MBR-MD) system was evaluated determine the environmental impacts of compared an existing IPR facility (“Baseline”). Physical and empirical models were used obtain operational data both systems inform life cycle inventory. Life as...

Membrane distillation (MD) is a promising hybrid thermal-membrane separation technology that can efficiently produce freshwater from seawater or contaminated wastewater. However, the relatively low flux and presence of fouling wetting agents in feed solution negate applicability MD for long term operation. In recent years, 'two-faced' membranes Janus have shown potential to decrease problem com...

With more than a billion people lacking accessible drinking water, there is a critical need to convert nonpotable sources such as seawater to water suitable for human use. However, energy requirements of desalination plants account for half their operating costs, so alternative, lower energy approaches are equally critical. Membrane distillation (MD) has shown potential due to its low operating...

This paper presents membrane distillation (MD), a separation process based on evaporation through pores of a hydrophobic membrane. Different configurations of the process were considered. Membrane properties, transport phenomena through the membranes, and module designs have been discussed. Applications of MD in water and wastewater treatment as well as in the food industry have been presented....

Scientific domain: %scientific_domain Subject short description: Water shortage and decline of the quality of fresh water resources make sea water desalination become a major way for drinking water production. Reverse Osmosis (RO) is now the main technology used for seawater desalination, but it shows a limited recovery and the environmental impact of large volumes of rejected brines is still a...

High liquid entry pressure (LEP) is one of the desired characteristics of a membrane distillation (MD) membrane. Maintaining LEP above operating feed pressure conditions is critical to prevent permeate quality worsening by saline feed liquid passage through the membrane. Air gap membrane distillation experiments under controlled salinity and temperature operating conditions indicate that in add...