An experimental investigation into the pre-treatment of synthetic membranes using sodium hydroxide solutions

Sarah A Jones, Michael R Bird, Arto Pihlajamaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this paper the effect of two pre-treatment methods are compared experimentally for the filtration of (i) a spent sulphite liquor (17.8 wt.% dry solids) using a 20 kg mol-1 molar mass cut off (MMCO) fluoropolymer membrane and (ii) a molasses solution (45 Brix) using a polysulphone (Psf) membrane (1.5 m pore size). Both feeds are industrially relevant, and subject to severe fouling issues when membranes are used in their subsequent processing. The pre-treatment methods evaluated were: (i) conditioning with water at 60 C only [Protocol 1], and (ii) conditioning with water at 60 C followed by cleaning with 0.5 wt.% NaOH [Protocol 2]. Results are presented that confirm the benefits of sodium hydroxide preconditioning upon performance, supporting the suggestion by some membrane manufacturers that this step be included as part of the pre-treatment protocol.
Original languageEnglish
Pages (from-to)128-137
Number of pages10
JournalJournal of Food Engineering
Volume105
Issue number1
Early online date17 Feb 2011
DOIs
Publication statusPublished - Jul 2011

Fingerprint

artificial membranes
Sodium Hydroxide
sodium hydroxide
pretreatment
Membranes
sulfite liquor
fouling
molasses
brix
Molasses
cleaning
Sulfites
Water
Therapeutics
Clinical Protocols
water
molecular weight
methodology

Keywords

  • zeta potential
  • membrane pre-treatment
  • molasses
  • spent sulphite liquor

Cite this

An experimental investigation into the pre-treatment of synthetic membranes using sodium hydroxide solutions. / Jones, Sarah A; Bird, Michael R; Pihlajamaki, Arto.

In: Journal of Food Engineering, Vol. 105, No. 1, 07.2011, p. 128-137.

Research output: Contribution to journalArticle

@article{21f857fd22504f71bf078be7a54e6d7a,
title = "An experimental investigation into the pre-treatment of synthetic membranes using sodium hydroxide solutions",
abstract = "In this paper the effect of two pre-treatment methods are compared experimentally for the filtration of (i) a spent sulphite liquor (17.8 wt.{\%} dry solids) using a 20 kg mol-1 molar mass cut off (MMCO) fluoropolymer membrane and (ii) a molasses solution (45 Brix) using a polysulphone (Psf) membrane (1.5 m pore size). Both feeds are industrially relevant, and subject to severe fouling issues when membranes are used in their subsequent processing. The pre-treatment methods evaluated were: (i) conditioning with water at 60 C only [Protocol 1], and (ii) conditioning with water at 60 C followed by cleaning with 0.5 wt.{\%} NaOH [Protocol 2]. Results are presented that confirm the benefits of sodium hydroxide preconditioning upon performance, supporting the suggestion by some membrane manufacturers that this step be included as part of the pre-treatment protocol.",
keywords = "zeta potential, membrane pre-treatment, molasses, spent sulphite liquor",
author = "Jones, {Sarah A} and Bird, {Michael R} and Arto Pihlajamaki",
year = "2011",
month = "7",
doi = "10.1016/j.jfoodeng.2011.02.015",
language = "English",
volume = "105",
pages = "128--137",
journal = "Journal of Food Engineering",
issn = "0260-8774",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - An experimental investigation into the pre-treatment of synthetic membranes using sodium hydroxide solutions

AU - Jones, Sarah A

AU - Bird, Michael R

AU - Pihlajamaki, Arto

PY - 2011/7

Y1 - 2011/7

N2 - In this paper the effect of two pre-treatment methods are compared experimentally for the filtration of (i) a spent sulphite liquor (17.8 wt.% dry solids) using a 20 kg mol-1 molar mass cut off (MMCO) fluoropolymer membrane and (ii) a molasses solution (45 Brix) using a polysulphone (Psf) membrane (1.5 m pore size). Both feeds are industrially relevant, and subject to severe fouling issues when membranes are used in their subsequent processing. The pre-treatment methods evaluated were: (i) conditioning with water at 60 C only [Protocol 1], and (ii) conditioning with water at 60 C followed by cleaning with 0.5 wt.% NaOH [Protocol 2]. Results are presented that confirm the benefits of sodium hydroxide preconditioning upon performance, supporting the suggestion by some membrane manufacturers that this step be included as part of the pre-treatment protocol.

AB - In this paper the effect of two pre-treatment methods are compared experimentally for the filtration of (i) a spent sulphite liquor (17.8 wt.% dry solids) using a 20 kg mol-1 molar mass cut off (MMCO) fluoropolymer membrane and (ii) a molasses solution (45 Brix) using a polysulphone (Psf) membrane (1.5 m pore size). Both feeds are industrially relevant, and subject to severe fouling issues when membranes are used in their subsequent processing. The pre-treatment methods evaluated were: (i) conditioning with water at 60 C only [Protocol 1], and (ii) conditioning with water at 60 C followed by cleaning with 0.5 wt.% NaOH [Protocol 2]. Results are presented that confirm the benefits of sodium hydroxide preconditioning upon performance, supporting the suggestion by some membrane manufacturers that this step be included as part of the pre-treatment protocol.

KW - zeta potential

KW - membrane pre-treatment

KW - molasses

KW - spent sulphite liquor

UR - http://www.scopus.com/inward/record.url?scp=79953057425&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1016/j.jfoodeng.2011.02.015

U2 - 10.1016/j.jfoodeng.2011.02.015

DO - 10.1016/j.jfoodeng.2011.02.015

M3 - Article

VL - 105

SP - 128

EP - 137

JO - Journal of Food Engineering

JF - Journal of Food Engineering

SN - 0260-8774

IS - 1

ER -