Forward Osmosis Membranes – A Review: Part I

Eyvaz, Murat; Arslan, Serkan; İmer, Derya Y.; Yüksel, Ebubekir; İsmailKoyuncu,

doi:10.5772/intechopen.72287

Cited by 16 publications

(12 citation statements)

References 91 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A draw solution (DS), which is the more concentrated solution, draws water from the feed solution (FS) across a semi-permeable membrane. Typical of the FO process, the DS soon becomes diluted and re-concentration of the DS is done to recycle the draw solutes as well as recover purified water [17,25,26]. The recovery and re-concentration process mainly depends on the type of DS used.…”

Section: Draw Solute Used Results Referencementioning

confidence: 99%

Desalination of Municipal Wastewater Using Forward Osmosis

Ezugbe¹,

Tetteh²,

Rathilal³

et al. 2021

Membranes

View full text Add to dashboard Cite

Membrane technology has gained much ground in water and wastewater treatment over the past couple of decades. This is timely, as the world explores smart, eco-friendly, and cheap water and wastewater treatment technologies in its quest to make potable water and sanitation commonplace in all parts of the world. Against this background, this study investigated forward osmosis (FO) in the removal of salts (chlorides, sulphates, and carbonates) and organics (chemical oxygen demand (COD), turbidity, total suspended solids (TSS), and color) from a synthetic municipal wastewater (MWW), mimicking secondary-treated industrial wastewater, at very low feed and draw solution flow rates (0.16 and 0.14 L/min respectively), using 70 g/L NaCl solution as the draw solution. The results obtained showed an average of 97.67% rejection of SO42− and CO32− while Cl− was found to enrich the feed solution (FS). An average removal of 88.92% was achieved for the organics. A permeation flux of 5.06 L/m2.h was obtained. The kinetics of the ions transport was studied, and was found to fit the second-order kinetic model, with Pearson’s R-values of 0.998 and 0.974 for Cl− and CO32− respectively. The study proves FO as a potential technology to desalinate saline MWW.

show abstract

Section: Draw Solute Used Results Referencementioning

confidence: 99%

Desalination of Municipal Wastewater Using Forward Osmosis

Ezugbe¹,

Tetteh²,

Rathilal³

et al. 2021

Membranes

View full text Add to dashboard Cite

show abstract

“…In general, FO membranes are asymmetric and consist of two layers, an active layer and a support layer, as shown in Figure 1. The most main commercially available of the various membranes used in FO are cellulose acetate (CA), cellulose triacetate (CTA), and thin-film composite (TFC) membranes [14,18]. Its primary purpose of the support layer is to provide mechanical support to the active layer.…”

Section: Forward Osmosis Membranesmentioning

confidence: 99%

“…Concentration polarization (CP) occurs in all forms of membrane separation processes, as shown in Figure 2. In FO membranes, CP occurs because of a concentration gradient between FS and DS through an asymmetric FO membrane [15,18,37]. Furthermore, CP can be broken into internal concentration polarization The ECP phenomenon occurs around the surface of the FO membrane's active layer and is caused by a difference in the membrane surface's concentration and the concentration of the bulk solution [38].…”

Section: • Membrane Fouling • Reverse Solute Diffusionmentioning

confidence: 99%

Shale Oil and Gas Produced Water Treatment: Opportunities and Barriers for Forward Osmosis

Ogletree¹,

Du²,

Kommalapati³

2022

Osmotically Driven Membrane Processes

View full text Add to dashboard Cite

The treatment of shale oil & gas produced water is a complicated process since it contains various organic compounds and inorganic impurities. Traditional membrane processes such as reverse osmosis and nanofiltration are challenged when produced water has high salinity. Forward osmosis (FO) and membrane distillation as two emerging membrane technologies are promising for produced water treatment. This chapter will focus on reviewing FO membranes, draw solute, and hybrid processes with other membrane filtration applied to produced water treatment. The barriers to the FO processes caused by membrane fouling and reverse draw solute flux are discussed fully by comparing some FO fabrication technologies, membrane performances, and draw solute selections. The future of the FO processes for produced water treatment is by summarizing life cycle assessment and economic analyses for produced water treatment in the last decade.

show abstract

“…Membrane-based cellulose triacetate (CTA) and polyamide thin film composite (TFC) are still dominant polymer manufactured as the FO membranes [80]. Leading manufacturers for FO membranes are Aquaporin, Porifera, HTI and Dow Filmtec.…”

Section: Fo Membrane Typementioning

confidence: 99%

Microalgae in Food-Energy-Water Nexus: A Review on Progress of Forward Osmosis Applications

et al. 2019

View full text Add to dashboard Cite

Nowadays the world is facing vulnerability problems related to food, energy and water demands. The challenges in those subsystems are intertwined and thus require inter-discipline approaches to address them. Bioresources offer promising solutions of the dilemma. Microalgae biomass is expected to become a superfood and a favorable energy feedstock and assist in supplying clean water and treat wastewater. Efficient mass production of microalgae, both during upstream and downstream processes, is thus a key process for providing high quality and affordable microalgae biomass. This paper covers recent progress in microalgae harvesting and dewatering by using osmotic driven membrane process, i.e., forward osmosis. Critical factors during forward osmosis process for microalgae harvesting and dewatering are discussed. Finally, perspective on further research directions and implementation scenarios of the forward osmosis are also provided.

show abstract

Forward Osmosis Membranes – A Review: Part I

Cited by 16 publications

References 91 publications

Desalination of Municipal Wastewater Using Forward Osmosis

Desalination of Municipal Wastewater Using Forward Osmosis

Shale Oil and Gas Produced Water Treatment: Opportunities and Barriers for Forward Osmosis

Microalgae in Food-Energy-Water Nexus: A Review on Progress of Forward Osmosis Applications

Contact Info

Product

Resources

About