https://cronfa.swan.ac.uk/Record/cronfa48864/Download/0048864-07032019141310.pdf

Reverse osmosis desalination: A state-of-the-art review

Desalination brine disposal methods and treatment technologies - A review.

The upper bound of thin-film composite (TFC) polyamide membranes for desalination

The specific separation properties of nanofiltration (NF) membranes lead to their application in water treatment, resource recovery, food processing, and chemical and pharmaceutical separations. Nevertheless, the pervasive trade-off effect between the water permeability and salt rejection is one of the main obstacles in further enhancing their performance and fields of application. Numerous studies focusing on this topic report great efforts in attempting to solve this issue over the past decade. In this review, the approach that is followed is that the functional layer of the NF membrane is divided into four different mass transfer regions according to its mass transfer characteristics. The relationship between water permeability and salt rejection has been expounded according to the mass transfer properties of the four regions. On this basis, five technical approaches together with typical examples regarding the coordination of the trade-off between water permeability and salt rejection are proposed. Finally, five aspects that may be instructive to future research are highlighted. Lessons gained from this review are expected to promote the rational design and optimized fabrication of high-performance NF membranes.

How to coordinate the trade-off between water permeability and salt rejection in nanofiltration?

Brine is a saline wastewater generated from several industries (e.g., desalination, energy and oil production) and its disposal can have adverse environmental impacts. To address this issue, brine treatment seems to be a promising option to eliminate the wastewater discharge, while also recovering extra freshwater and valuable materials such as salts. This can be achieved through minimal liquid discharge (MLD) and zero liquid discharge (ZLD) strategies. In this work, MLD and ZLD frameworks are analyzed and evaluated under 9 criteria (framework stages, technologies, freshwater recovery target, feed brine salinity, energy consumption of each technology, GHGs emissions, cost impact, resource recovery and social impact). Moreover, a case-study is presented under two different scenarios, Scenario 1 (MLD system) and Scenario 2 (ZLD system). Results showed that the energy consumption of the ZLD system is 10.43 kW h/m3 which is 1.93 times higher than the energy consumption of the MLD system (5.4 kW h/m3). The total freshwater recovery of the MLD system is 84.6 %, whereas the total freshwater recovery of the ZLD system is 98.15 %. Overall, the results suggest that the MLD and ZLD strategies can be valuable strategies for wastewater utilization, reuse, and resource recovery.

Minimal Liquid Discharge (MLD) and Zero Liquid Discharge (ZLD) strategies for wastewater management and resource recovery – Analysis, challenges and prospects

Facile performance enhancement of reverse osmosis membranes via solvent activation with benzyl alcohol

Aromatic solvent-assisted interfacial polymerization to prepare high performance thin film composite reverse osmosis membranes based on hydrophilic supports

Hyo Eun Kwon

Papers

Facile performance enhancement of reverse osmosis membranes via solvent activation with benzyl alcohol

Aromatic solvent-assisted interfacial polymerization to prepare high performance thin film composite reverse osmosis membranes based on hydrophilic supports

High performance polyacrylonitrile-supported forward osmosis membranes prepared via aromatic solvent-based interfacial polymerization