Effects of scaling and cleaning on the performance of forward osmosis hollow fiber membranes

Elizabeth Arkhangelsky, Filicia Wicaksana, Shuren Chou, Abdulrahman A. Al-Rabiah, Saeed M. Al-Zahrani, Rong Wang

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Forward osmosis (FO) process as an alternative to conventional desalination techniques has attracted much attention in recent years. Since mineral salt scaling is one of the major limitations for seawater desalination, the current study focused on the behaviors of thin film composite (TFC) FO hollow fibers, which were fabricated in our laboratory, under the circumstance of calcium sulfate (CaSO 4) scaling with sodium chloride as draw solution. The performance of FO hollow fiber membranes was compared with commercially available FO flat sheet membranes. Several cleaning strategies were also explored.Depending on the membrane orientation, experimental results suggested that the scaling of the FO hollow fibers was dominated by cake layer formation along with pore blocking in the orientation of active layer facing draw solution (AL-DS). The pore blocking could be a result of the penetration of crystals from the feed solution into the support matrix of the membrane, or the formation of crystals inside the porous support layer. At the same driving force, the water flux of the FO hollow fibers in the orientation of active layer facing feed solution (AL-FS) was twice higher than the water flux of the flat sheet membrane in both orientations. The water flux of scaled FO hollow fibers and flat sheet membranes in the AL-DS orientation could be successfully restored by hydraulic backwash procedure. To the best of our knowledge, this is the first study to examine the inorganic scaling of FO membranes in the AL-DS orientation.

Original languageEnglish
Pages (from-to)101-108
Number of pages8
JournalJournal of Membrane Science
Volume415-416
DOIs
Publication statusPublished - Oct 1 2012
Externally publishedYes

Fingerprint

Osmosis
osmosis
cleaning
Cleaning
hollow
membranes
Membranes
scaling
fibers
Fibers
Desalination
Fluxes
Water
backwash
Calcium Sulfate
Osmosis membranes
Crystals
water
porosity
Sodium chloride

Keywords

  • Cleaning
  • Flux decline
  • FO hollow fiber membranes
  • Forward osmosis
  • Membrane orientation
  • Scaling

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Biochemistry
  • Filtration and Separation

Cite this

Effects of scaling and cleaning on the performance of forward osmosis hollow fiber membranes. / Arkhangelsky, Elizabeth; Wicaksana, Filicia; Chou, Shuren; Al-Rabiah, Abdulrahman A.; Al-Zahrani, Saeed M.; Wang, Rong.

In: Journal of Membrane Science, Vol. 415-416, 01.10.2012, p. 101-108.

Research output: Contribution to journalArticle

Arkhangelsky, Elizabeth ; Wicaksana, Filicia ; Chou, Shuren ; Al-Rabiah, Abdulrahman A. ; Al-Zahrani, Saeed M. ; Wang, Rong. / Effects of scaling and cleaning on the performance of forward osmosis hollow fiber membranes. In: Journal of Membrane Science. 2012 ; Vol. 415-416. pp. 101-108.
@article{8c4aa9fa3f184482863cc32f3c3917b7,
title = "Effects of scaling and cleaning on the performance of forward osmosis hollow fiber membranes",
abstract = "Forward osmosis (FO) process as an alternative to conventional desalination techniques has attracted much attention in recent years. Since mineral salt scaling is one of the major limitations for seawater desalination, the current study focused on the behaviors of thin film composite (TFC) FO hollow fibers, which were fabricated in our laboratory, under the circumstance of calcium sulfate (CaSO 4) scaling with sodium chloride as draw solution. The performance of FO hollow fiber membranes was compared with commercially available FO flat sheet membranes. Several cleaning strategies were also explored.Depending on the membrane orientation, experimental results suggested that the scaling of the FO hollow fibers was dominated by cake layer formation along with pore blocking in the orientation of active layer facing draw solution (AL-DS). The pore blocking could be a result of the penetration of crystals from the feed solution into the support matrix of the membrane, or the formation of crystals inside the porous support layer. At the same driving force, the water flux of the FO hollow fibers in the orientation of active layer facing feed solution (AL-FS) was twice higher than the water flux of the flat sheet membrane in both orientations. The water flux of scaled FO hollow fibers and flat sheet membranes in the AL-DS orientation could be successfully restored by hydraulic backwash procedure. To the best of our knowledge, this is the first study to examine the inorganic scaling of FO membranes in the AL-DS orientation.",
keywords = "Cleaning, Flux decline, FO hollow fiber membranes, Forward osmosis, Membrane orientation, Scaling",
author = "Elizabeth Arkhangelsky and Filicia Wicaksana and Shuren Chou and Al-Rabiah, {Abdulrahman A.} and Al-Zahrani, {Saeed M.} and Rong Wang",
year = "2012",
month = "10",
day = "1",
doi = "10.1016/j.memsci.2012.04.041",
language = "English",
volume = "415-416",
pages = "101--108",
journal = "Jornal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",

}

TY - JOUR

T1 - Effects of scaling and cleaning on the performance of forward osmosis hollow fiber membranes

AU - Arkhangelsky, Elizabeth

AU - Wicaksana, Filicia

AU - Chou, Shuren

AU - Al-Rabiah, Abdulrahman A.

AU - Al-Zahrani, Saeed M.

AU - Wang, Rong

PY - 2012/10/1

Y1 - 2012/10/1

N2 - Forward osmosis (FO) process as an alternative to conventional desalination techniques has attracted much attention in recent years. Since mineral salt scaling is one of the major limitations for seawater desalination, the current study focused on the behaviors of thin film composite (TFC) FO hollow fibers, which were fabricated in our laboratory, under the circumstance of calcium sulfate (CaSO 4) scaling with sodium chloride as draw solution. The performance of FO hollow fiber membranes was compared with commercially available FO flat sheet membranes. Several cleaning strategies were also explored.Depending on the membrane orientation, experimental results suggested that the scaling of the FO hollow fibers was dominated by cake layer formation along with pore blocking in the orientation of active layer facing draw solution (AL-DS). The pore blocking could be a result of the penetration of crystals from the feed solution into the support matrix of the membrane, or the formation of crystals inside the porous support layer. At the same driving force, the water flux of the FO hollow fibers in the orientation of active layer facing feed solution (AL-FS) was twice higher than the water flux of the flat sheet membrane in both orientations. The water flux of scaled FO hollow fibers and flat sheet membranes in the AL-DS orientation could be successfully restored by hydraulic backwash procedure. To the best of our knowledge, this is the first study to examine the inorganic scaling of FO membranes in the AL-DS orientation.

AB - Forward osmosis (FO) process as an alternative to conventional desalination techniques has attracted much attention in recent years. Since mineral salt scaling is one of the major limitations for seawater desalination, the current study focused on the behaviors of thin film composite (TFC) FO hollow fibers, which were fabricated in our laboratory, under the circumstance of calcium sulfate (CaSO 4) scaling with sodium chloride as draw solution. The performance of FO hollow fiber membranes was compared with commercially available FO flat sheet membranes. Several cleaning strategies were also explored.Depending on the membrane orientation, experimental results suggested that the scaling of the FO hollow fibers was dominated by cake layer formation along with pore blocking in the orientation of active layer facing draw solution (AL-DS). The pore blocking could be a result of the penetration of crystals from the feed solution into the support matrix of the membrane, or the formation of crystals inside the porous support layer. At the same driving force, the water flux of the FO hollow fibers in the orientation of active layer facing feed solution (AL-FS) was twice higher than the water flux of the flat sheet membrane in both orientations. The water flux of scaled FO hollow fibers and flat sheet membranes in the AL-DS orientation could be successfully restored by hydraulic backwash procedure. To the best of our knowledge, this is the first study to examine the inorganic scaling of FO membranes in the AL-DS orientation.

KW - Cleaning

KW - Flux decline

KW - FO hollow fiber membranes

KW - Forward osmosis

KW - Membrane orientation

KW - Scaling

UR - http://www.scopus.com/inward/record.url?scp=84864775159&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864775159&partnerID=8YFLogxK

U2 - 10.1016/j.memsci.2012.04.041

DO - 10.1016/j.memsci.2012.04.041

M3 - Article

VL - 415-416

SP - 101

EP - 108

JO - Jornal of Membrane Science

JF - Jornal of Membrane Science

SN - 0376-7388

ER -