A study of poly (sodium 4-styrenesulfonate) as draw solute in forward osmosis

Tian, Enling; Hu, Chengbo; Qin, Yan; Ren, Yiwei; Wang, Xingzu; Wang, Xiao; Xiao, Ping; Yang, Xin

doi:10.1016/j.desal.2015.01.001

Cited by 76 publications

(42 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the use of ideal draw solution that can generate high osmotic pressure (∆π) is critical for advancing FO technology [73]. The osmotic pressure difference is a result of the solute content of both the feed and draw solutions.…”

Section: Feed Water Quality and Osmotic Gradientmentioning

confidence: 99%

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

Motsa¹,

Mamba²

2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

View full text Add to dashboard Cite

This chapter presents the exploration of the combined process of wastewater reclamation and seawater dilution using forward osmosis (FO). Wastewater and seawater are the two most abundant water sources that are free of the hydrological cycle and could serve as an alternative potable water source. Forward osmosis was chosen as the an ideal pre-treatment step to dilute seawater prior to desalination at relatively lower energy demand and low fouling propensity. Membrane fouling behavior was studied and investigated using different feed compositions bearing fractions of effluent organic matter (EfOM). The negative surface charge of all organic foulants was reduced by the adsorption of calcium ions. Filtration of feed streams containing single, simple organic foulants revealed that alginate (polysaccharides) and bovine serum albumin (BSA) resulted in significant loss in process performance as a result of permeate flux reduction.The complex mixture of alginate, BSA and humic acid caused severe loss in membrane performance due to dominant favorable synergistic interactions between foulants and between foulants and membrane surface. The forward osmosis process presents a viable alternative for a simple and effective seawater dilution step using wastewater as the feed solution. Process performance can be improved by selecting a foulant resistant membrane with matching flux.

show abstract

Section: Feed Water Quality and Osmotic Gradientmentioning

confidence: 99%

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

Motsa¹,

Mamba²

2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

View full text Add to dashboard Cite

show abstract

“…Polymer and nanoparticle based systems have gained importance as they eliminate the possibility of reverse draw solute flux. Polyelectrolytes like PSA (poly sodium acrylate) [22] and PSS (poly sodium 4-styrenesulfonate) [28] have been utilized as the osmotic draw agent, where they reported high osmotic pressure but at a very high draw solute concentration of~0.5-0.75 g·mL − 1 PSA and 0.24 g·mL − 1 PSS (70 kDa) resulting in high viscosity during the FO process. The high chemical concentration also makes the product water unfit for drinking purposes, increasing its separation and production cost.…”

mentioning

confidence: 99%

Magnetic nanoparticles boosting the osmotic efficiency of a polymeric FO draw agent: Effect of polymer conformation

Dey

Izake

2015

Desalination

View full text Add to dashboard Cite

“…PSS has been previously reported as potential draw solute for the FO/PRO process , . It is found that a mass concentration of 0.24 g mL −1 PSS was the best condition to obtain effective FO/PRO performance as stated in the work of Tian et al . It must be noted that the reverse solute flux of PSS is also relatively low which can be attributed to the high rejection capability of the NF270 membrane against PSS.…”

Section: Resultsmentioning

confidence: 99%

Performance of Nanofiltration‐Like Forward‐Osmosis Membranes for Aerobically Treated Palm Oil Mill Effluent

et al. 2017

View full text Add to dashboard Cite

For the first time, engineered osmosis was performed using commercial nanofiltration (NF) membranes for the treatment process of aerobically treated palm oil mill effluent (AT-POME). Compared to conventional forward-osmosis (FO) membranes with dense rejection layer, the NF-like FO membranes offer a higher water flux with minimum reverse solute flux provided appropriate solutes like divalent salts or polyelectrolytes were used in the draw solution. Both NF membranes were able to treat the AT-POME by completely preventing the color component from passing through the permeate side under FO and pressure-retarded osmosis (PRO) orientation. The water fluxes of the membranes were higher under PRO orientation owing to the reduced internal concentration polarization effect. Relatively loose membranes for the engineered osmosis application could address severe surface fouling of membranes tested under pressure-driven filtration.

show abstract

A study of poly (sodium 4-styrenesulfonate) as draw solute in forward osmosis

Cited by 76 publications

References 38 publications

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

Magnetic nanoparticles boosting the osmotic efficiency of a polymeric FO draw agent: Effect of polymer conformation

Performance of Nanofiltration‐Like Forward‐Osmosis Membranes for Aerobically Treated Palm Oil Mill Effluent

Contact Info

Product

Resources

About