Assessing the forward osmosis performances using CTA membrane

Effect of solution volume ratio and type of draw solute

Jeng Yih Law, Abdul Wahab Mohammad

Research output: Contribution to journalArticle

Abstract

Osmotically-driven forward osmosis (FO) has gained significant attention in the last decade due to its potential application in various disciplines. Draw solution serves as the driving force in FO process for inducing water transport across the membrane. FO technology can be used to reject or concentrate high valuable products in the chemical and bioprocess industries which often encounter great challenge in terms of dilute product formation. In this study, commercial cellulose triacetate (CTA) flat sheet FO membrane was investigated using several types of inorganic draw solute. Pure water fluxes ranged from 5.20 to 6.30 L.m-2.h-1 were achieved for selected draw solutes. The reverse solute leakage was shown by the increment of conductivity in the feed solution. Among the draw solutes, NaCl demonstrated highest reverse solute leakage (72.45 µS cm-1) attributed to its relatively smaller molecular size. The water fluxes at feed to draw solution volume ratios of 1:2 and 1:3 were found to be slightly lower than that to the volume ratios of 1:0.6 and 1:1. With respect to sodium succinate feed solution, MgCl2 was capable of generating higher osmotic pressure and thus higher water flux was observed compared to NaCl draw solute. Overall, the selected inorganic draw solutes demonstrated encouraging FO performances and could be used for concentrating sodium succinate solution.

Original languageEnglish
Pages (from-to)47-52
Number of pages6
JournalJurnal Teknologi
Volume79
Issue number5-3
DOIs
Publication statusPublished - 2017

Fingerprint

Osmosis
Cellulose
Membranes
Fluxes
Water
Sodium
Osmosis membranes
Industry

Keywords

  • Conductivity
  • CTA membrane
  • Draw solute
  • Forward osmosis
  • Solution volume ratio

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Assessing the forward osmosis performances using CTA membrane : Effect of solution volume ratio and type of draw solute. / Law, Jeng Yih; Mohammad, Abdul Wahab.

In: Jurnal Teknologi, Vol. 79, No. 5-3, 2017, p. 47-52.

Research output: Contribution to journalArticle

@article{3b7acecc406d423483b33646eff45f38,
title = "Assessing the forward osmosis performances using CTA membrane: Effect of solution volume ratio and type of draw solute",
abstract = "Osmotically-driven forward osmosis (FO) has gained significant attention in the last decade due to its potential application in various disciplines. Draw solution serves as the driving force in FO process for inducing water transport across the membrane. FO technology can be used to reject or concentrate high valuable products in the chemical and bioprocess industries which often encounter great challenge in terms of dilute product formation. In this study, commercial cellulose triacetate (CTA) flat sheet FO membrane was investigated using several types of inorganic draw solute. Pure water fluxes ranged from 5.20 to 6.30 L.m-2.h-1 were achieved for selected draw solutes. The reverse solute leakage was shown by the increment of conductivity in the feed solution. Among the draw solutes, NaCl demonstrated highest reverse solute leakage (72.45 µS cm-1) attributed to its relatively smaller molecular size. The water fluxes at feed to draw solution volume ratios of 1:2 and 1:3 were found to be slightly lower than that to the volume ratios of 1:0.6 and 1:1. With respect to sodium succinate feed solution, MgCl2 was capable of generating higher osmotic pressure and thus higher water flux was observed compared to NaCl draw solute. Overall, the selected inorganic draw solutes demonstrated encouraging FO performances and could be used for concentrating sodium succinate solution.",
keywords = "Conductivity, CTA membrane, Draw solute, Forward osmosis, Solution volume ratio",
author = "Law, {Jeng Yih} and Mohammad, {Abdul Wahab}",
year = "2017",
doi = "10.11113/jt.v79.11326",
language = "English",
volume = "79",
pages = "47--52",
journal = "Jurnal Teknologi",
issn = "0127-9696",
publisher = "Penerbit Universiti Teknologi Malaysia",
number = "5-3",

}

TY - JOUR

T1 - Assessing the forward osmosis performances using CTA membrane

T2 - Effect of solution volume ratio and type of draw solute

AU - Law, Jeng Yih

AU - Mohammad, Abdul Wahab

PY - 2017

Y1 - 2017

N2 - Osmotically-driven forward osmosis (FO) has gained significant attention in the last decade due to its potential application in various disciplines. Draw solution serves as the driving force in FO process for inducing water transport across the membrane. FO technology can be used to reject or concentrate high valuable products in the chemical and bioprocess industries which often encounter great challenge in terms of dilute product formation. In this study, commercial cellulose triacetate (CTA) flat sheet FO membrane was investigated using several types of inorganic draw solute. Pure water fluxes ranged from 5.20 to 6.30 L.m-2.h-1 were achieved for selected draw solutes. The reverse solute leakage was shown by the increment of conductivity in the feed solution. Among the draw solutes, NaCl demonstrated highest reverse solute leakage (72.45 µS cm-1) attributed to its relatively smaller molecular size. The water fluxes at feed to draw solution volume ratios of 1:2 and 1:3 were found to be slightly lower than that to the volume ratios of 1:0.6 and 1:1. With respect to sodium succinate feed solution, MgCl2 was capable of generating higher osmotic pressure and thus higher water flux was observed compared to NaCl draw solute. Overall, the selected inorganic draw solutes demonstrated encouraging FO performances and could be used for concentrating sodium succinate solution.

AB - Osmotically-driven forward osmosis (FO) has gained significant attention in the last decade due to its potential application in various disciplines. Draw solution serves as the driving force in FO process for inducing water transport across the membrane. FO technology can be used to reject or concentrate high valuable products in the chemical and bioprocess industries which often encounter great challenge in terms of dilute product formation. In this study, commercial cellulose triacetate (CTA) flat sheet FO membrane was investigated using several types of inorganic draw solute. Pure water fluxes ranged from 5.20 to 6.30 L.m-2.h-1 were achieved for selected draw solutes. The reverse solute leakage was shown by the increment of conductivity in the feed solution. Among the draw solutes, NaCl demonstrated highest reverse solute leakage (72.45 µS cm-1) attributed to its relatively smaller molecular size. The water fluxes at feed to draw solution volume ratios of 1:2 and 1:3 were found to be slightly lower than that to the volume ratios of 1:0.6 and 1:1. With respect to sodium succinate feed solution, MgCl2 was capable of generating higher osmotic pressure and thus higher water flux was observed compared to NaCl draw solute. Overall, the selected inorganic draw solutes demonstrated encouraging FO performances and could be used for concentrating sodium succinate solution.

KW - Conductivity

KW - CTA membrane

KW - Draw solute

KW - Forward osmosis

KW - Solution volume ratio

UR - http://www.scopus.com/inward/record.url?scp=85025168762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85025168762&partnerID=8YFLogxK

U2 - 10.11113/jt.v79.11326

DO - 10.11113/jt.v79.11326

M3 - Article

VL - 79

SP - 47

EP - 52

JO - Jurnal Teknologi

JF - Jurnal Teknologi

SN - 0127-9696

IS - 5-3

ER -