Effect of operating conditions on osmotic-driven membrane performances of cellulose triacetate forward osmosis hollow fiber membrane

Shibuya, Masatoyo; Yasukawa, Masahiro; Takahashi, Tomoki; Miyoshi, Takayuki; Higa, Mitsuru; Matsuyama, Hideto

doi:10.1016/j.desal.2015.01.031

Cited by 58 publications

(22 citation statements)

References 62 publications

(83 reference statements)

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“…draw solution concentration, cross flow velocity, membrane orientation, and temperature. High water flux-to-reverse salt flux ratios, more than 800 L/mol and higher than those of commercial membranes, were obtained for the CTA HF membranes [93]. In general, reverse solute diffusion is one of the major challenges in FO and it should be fully taken into consideration and should be reduced during the future development of draw solutes and FO membranes.…”

Section: Fouling Type Mitigation Measure Findingsmentioning

confidence: 96%

“…Kim et al [92] reported that when NaCl concentration in the draw solution increased, stronger driving forces for both water permeation and reverse solute diffusion caused permeate water and reverse draw solute fluxes to increase. Shibuya et al reported that the reverse diffusion of permeate water and salt leakage leads to ICP in the porous support layer of commercial membranes [93]. They also evaluated three types of cellulose triacetate (CTA) hollow fiber forward osmosis membranes with diameters of less than 200 lm under various operating conditions i.e.…”

Section: Fouling Type Mitigation Measure Findingsmentioning

confidence: 99%

See 1 more Smart Citation

Recent advancements in forward osmosis desalination: A review

Akther¹,

Sodiq²,

Giwa³

et al. 2015

Chemical Engineering Journal

398

203

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Section: Fouling Type Mitigation Measure Findingsmentioning

confidence: 96%

Section: Fouling Type Mitigation Measure Findingsmentioning

confidence: 99%

Recent advancements in forward osmosis desalination: A review

Akther¹,

Sodiq²,

Giwa³

et al. 2015

Chemical Engineering Journal

398

203

View full text Add to dashboard Cite

“…The spacer enhanced the turbulence in flow. It can reduce the CP and the rate of mass transfer on the surface of membrane [15,17,21]. The SWFO element used in this study had a cross flow pattern.…”

Section: Swfo Element and Membranementioning

confidence: 99%

“…Many FO tests using flat sheet FO membranes have been operated at the same flow rate for either side of solution because the flat sheet type membrane has a minimal pressure drop [21,22,24]. However, in the real field of membrane process, SWFO elements are connected to compose a multi-stage array.…”

Section: Spiral-wound Structure Characteristicsmentioning

confidence: 99%

Performance evaluation of two-stage spiral wound forward osmosis elements at various operation conditions

Lee³

et al. 2016

Desalination and Water Treatment

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A B S T R A C TForward osmosis (FO) is an emerging process in water industry for wastewater treatment, water reuse, and desalination. Although many lab-scale studies have been done, the data generated cannot be directly applied to a real pilot plant due to different membrane configuration and operating conditions. In this study, we evaluated commercial spiral wound forward osmosis (SWFO) elements in various operating conditions (draw solution concentration, flow rate, and element array type). First, we investigated the SWFO special structure (winding configuration of the draw flow path). Due to the structural characteristics of SWFO, the draw flow rate showed a high-pressure drop effect because of feed flow rate. Second, we studied the performance of different element array types. Both sides of flow rate change influenced the performance of pilot-scale SWFO by reducing concentration polarization and dilution effect. In addition, according to the type of SWFO element array, the flow rate had different role in water flux. We propose guidelines for the design and management of commercial FO processes to carry out element evaluation as directly applicable to pilot plant. This study can be used as an important reference for engineers in the FO process field.

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“…Several materials have been used to fabricate FO membranes including cellulose triacetate (CTA), polyamide and biomimetic materials (Shibuya et al, 2015). Sairam et al (2011) prepared a membrane containing a thin layer of cellulose acetate (CA) cast on a nylon fabric via a phase inversion process, using MgSO 4 as the draw solution for desalination.…”

Section: Introductionmentioning

confidence: 99%