Evaluation of different cleaning strategies for different types of forward osmosis membrane fouling and scaling

Kim, Youngjin; Li, Sheng; Ghaffour, Noreddine

doi:10.1016/j.memsci.2019.117731

Cited by 88 publications

(34 citation statements)

References 55 publications

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“…The higher membrane cleaning efficiency of backwashing hints that the reverse flow of water can interrupt the interaction of the foulants with the membrane layer. It has further been reported by Kim et al [ 17 ] that backwashing can eliminate foulant–foulant and foulant–membrane adhesion with use of appropriate salts in the process. Mosta et al [ 26 ] revealed that osmotic driving force is capable of cleaning fouled FO and recovering the permeate flux from 81% up to 98% for 1 M and 1.5 M NaCl concentration.…”

Section: Resultsmentioning

confidence: 83%

“…The decline in flux due to fouling is mainly caused by organic and inorganic foulants. Colloidal foulants have been reported to cause the lowest flux decline [ 17 ] The cake-enhanced osmotic pressure (CEOP) causes colloidal fouling to have the lowest flux decline, despite its dense structure. The CEOP, a dominant factor for flux decline, relies on the thickness of the fouling layer.…”

Section: Resultsmentioning

confidence: 99%

“…Although fouling is inescapable, several studies have claimed, both organic and inorganic membrane fouling in FO are entirely reversible with use of physical cleaning [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. Though the fouling propensity of the FO process is lower than that of other pressure-driven membrane processes, studies have been conducted to understand the FO fouling mechanism, the factors influencing FO membrane fouling and methods to mitigate them [ 4 , 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…High water flux is then linked to high permeation drag force and therefore increased foulant concentration near the surface of the membrane. Furthermore, the increased water flux accelerates feed solution (FS) concentration and DS dilution leading to a heavy decline in initial flux [ 12 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Studies conducted by Lotfi et al [ 13 ] yielded verifiable results. Kim et al [ 17 ], presented that high crossflow velocity generated low concentration polarization, causing an increase in water flux. This consequently is associated with a high-permeation drag force and may lead to more thick and dense fouling near the FO membrane.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Membrane Fouling on Fertilizer-Drawn Forward Osmosis Desalination Performance

2020

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Fertilizer-drawn forward osmosis (FDFO) has garnered immense attention for its application in the agricultural field and its potential to reuse wastewater sustainably. Membrane fouling, however, remains to be a challenge for the process. This study aims to investigate the influence of membrane fouling on the performance of the FDFO process. Synthetic wastewater (SWW) and multi-component fertilizer (MCF) were used as feed solution (FS) and draw solution (DS) with cellulose triacetate (CTA) forward osmosis (FO) membrane orientation. The performance was evaluated through water flux (WF), percentage recovery and percentage of salt reject. The WF declined from 10.32 LMH (L/m2·h) to 3.30 LMH when ultra-pure water as FS was switched with concentration FS indicating the dependence of the performance on the type of FS used. Accelerated fouling experiments conducted to verify the fouling behavior showed a decline in the water flux from 8.6 LMH to 3.09 LMH with SWW and 13.1 LMH to 3.42 LMH when deionized water was used as FS. The effects of osmotic backwashing and in situ flushing as physical cleaning methods of the foul membrane were studied through water flux and salt recovery percentage. Both cleaning methods yielded a WF close to the baseline. Osmotic backwashing yielded better results by eliminating foulant–foulant and foulant–membrane adhesion. The cleaning methods were able to recover 75% of phosphate and 60% of nitrate salts. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and Fourier transform infrared (FTIR) results validated the effectiveness of the methods for the physical cleaning of foul membranes. This study underlines the importance of the FS used in FDFO and the effectiveness of osmotic backwashing as a cleaning method of FO membranes.

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Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Membrane Fouling on Fertilizer-Drawn Forward Osmosis Desalination Performance

2020

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Fouling limitations of osmotic pressure‐driven processes and its remedial strategies: A review

Singh

Maiti

Pandey

et al. 2022

J of Applied Polymer Sci

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The scarcity of freshwater is one of the major challenges to the civilized community around the World. So, the various engineered processes have been developed for the remediation of this problem such as osmotic pressure-driven processes (OPDPs). OPDPs includes forward osmosis and pressure retarded osmosis, which have gained enormous attention and becoming a flexible membrane-based technology for desalination and wastewater treatment. The most significant components of the OPDPs to be efficient are the membranes and the draw solution. Although numerous studies highlighted the membrane fouling and concentration polarization are one of the critical parameters to assess the system efficiency in the OPDPs and other pressure driven membrane processes. This study delivers an up-to-date review of the OPDPs in terms of concentration polarization, membrane fouling (organic, inorganic, and biofouling), foulant interactions, remedial strategies, monitoring and characterization techniques, and future directions of research. Numerous foulant interactions are also elaborated for the OPDPs in the field of the membrane separation technique. State of the art in antifouling membrane fabrication methods are critically reviewed along with different remedial strategies for fouled membranes in OPDPs.

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A review on the forward osmosis applications and fouling control strategies for wastewater treatment

Zhu

Ding

Zhu

et al. 2021

Front. Chem. Sci. Eng.

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Evaluation of different cleaning strategies for different types of forward osmosis membrane fouling and scaling

Cited by 88 publications

References 55 publications

Effect of Membrane Fouling on Fertilizer-Drawn Forward Osmosis Desalination Performance

Effect of Membrane Fouling on Fertilizer-Drawn Forward Osmosis Desalination Performance

Fouling limitations of osmotic pressure‐driven processes and its remedial strategies: A review

A review on the forward osmosis applications and fouling control strategies for wastewater treatment

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