Modeling of selective pertraction of carboxylic acids obtained by Actinobacillus succinogenes fermentation

Madalina Postaru; Marius Turnea; Anca-Irina Galaction; Lenuta Kloetzer; Alexandra Blaga; Anestis Vlysidis; Colin Webb; Alexandra Carlescu; Dan Cascaval

Modeling of selective pertraction of carboxylic acids obtained by Actinobacillus succinogenes fermentation

Madalina Postaru, Marius Turnea, Anca-Irina Galaction, Lenuta Kloetzer, Alexandra Blaga, Anestis Vlysidis, Colin Webb, Alexandra Carlescu, Dan Cascaval

Research output: Contribution to journal › Article › peer-review

Abstract

Formic and acetic acids could be selectively removed from the mixture with succinic acid by facilitated pertraction with tri-noctylamine (TOA). The pertraction selectivity is positively influenced by increasing the pH-gradient between the feed and stripping phases and carrier concentration in liquid membrane up to 70 g/L, as well as by lowering the mixing intensity of the two aqueous phases, TOA concentration exhibiting the most important influence. The cumulated influences of the considered parameters have been included in a mathematical model describing the pertraction of these carboxylic acids by means of the selectivity factor. The proposed model offers a good concordance with the experimental values of selectivity factor, the average deviation being of ±5.22%.

Original language	English
Pages (from-to)	1901-1906
Number of pages	6
Journal	Environmental Engineering and Management Journal
Volume	11
Issue number	11
Publication status	Published - 2012

Keywords

Carrier; Liquid membranes; Mass flow; Selectivity; Succinic acid fermentation

Cite this

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title = "Modeling of selective pertraction of carboxylic acids obtained by Actinobacillus succinogenes fermentation",

abstract = "Formic and acetic acids could be selectively removed from the mixture with succinic acid by facilitated pertraction with tri-noctylamine (TOA). The pertraction selectivity is positively influenced by increasing the pH-gradient between the feed and stripping phases and carrier concentration in liquid membrane up to 70 g/L, as well as by lowering the mixing intensity of the two aqueous phases, TOA concentration exhibiting the most important influence. The cumulated influences of the considered parameters have been included in a mathematical model describing the pertraction of these carboxylic acids by means of the selectivity factor. The proposed model offers a good concordance with the experimental values of selectivity factor, the average deviation being of ±5.22%.",

keywords = "Carrier; Liquid membranes; Mass flow; Selectivity; Succinic acid fermentation",

author = "Madalina Postaru and Marius Turnea and Anca-Irina Galaction and Lenuta Kloetzer and Alexandra Blaga and Anestis Vlysidis and Colin Webb and Alexandra Carlescu and Dan Cascaval",

year = "2012",

language = "English",

volume = "11",

pages = "1901--1906",

journal = "Environmental Engineering and Management Journal",

issn = "1582-9596",

publisher = "Gheorghe Asachi Technical University of Iași",

number = "11",

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TY - JOUR

T1 - Modeling of selective pertraction of carboxylic acids obtained by Actinobacillus succinogenes fermentation

AU - Postaru, Madalina

AU - Turnea, Marius

AU - Galaction, Anca-Irina

AU - Kloetzer, Lenuta

AU - Blaga, Alexandra

AU - Vlysidis, Anestis

AU - Webb, Colin

AU - Carlescu, Alexandra

AU - Cascaval, Dan

PY - 2012

Y1 - 2012

N2 - Formic and acetic acids could be selectively removed from the mixture with succinic acid by facilitated pertraction with tri-noctylamine (TOA). The pertraction selectivity is positively influenced by increasing the pH-gradient between the feed and stripping phases and carrier concentration in liquid membrane up to 70 g/L, as well as by lowering the mixing intensity of the two aqueous phases, TOA concentration exhibiting the most important influence. The cumulated influences of the considered parameters have been included in a mathematical model describing the pertraction of these carboxylic acids by means of the selectivity factor. The proposed model offers a good concordance with the experimental values of selectivity factor, the average deviation being of ±5.22%.

AB - Formic and acetic acids could be selectively removed from the mixture with succinic acid by facilitated pertraction with tri-noctylamine (TOA). The pertraction selectivity is positively influenced by increasing the pH-gradient between the feed and stripping phases and carrier concentration in liquid membrane up to 70 g/L, as well as by lowering the mixing intensity of the two aqueous phases, TOA concentration exhibiting the most important influence. The cumulated influences of the considered parameters have been included in a mathematical model describing the pertraction of these carboxylic acids by means of the selectivity factor. The proposed model offers a good concordance with the experimental values of selectivity factor, the average deviation being of ±5.22%.

KW - Carrier; Liquid membranes; Mass flow; Selectivity; Succinic acid fermentation

M3 - Article

SN - 1582-9596

VL - 11

SP - 1901

EP - 1906

JO - Environmental Engineering and Management Journal

JF - Environmental Engineering and Management Journal

IS - 11

ER -

Modeling of selective pertraction of carboxylic acids obtained by Actinobacillus succinogenes fermentation

Abstract

Keywords

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