Sorption of phenols from water in column systems using surfactant-modified montmorillonite

Ruey Shin Juang; Su Hsia Lin; Kung Hsuen Tsao

doi:10.1016/j.jcis.2003.08.016

Sorption of phenols from water in column systems using surfactant-modified montmorillonite

Ruey Shin Juang^*, Su Hsia Lin, Kung Hsuen Tsao

^*Corresponding author for this work

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

41 Scopus citations

Abstract

The sorption of phenol, m-nitrophenol (m-NP), and o-cresol from water onto montmorillonite modified with cetyltrimethylammonium bromide (CTAB) in a column was studied. The sorption isotherms were fitted by the Langmuir equation. Column experiments were performed at 25°C to determine the breakthrough curves at different flow rates, feed sorbate concentrations, and bed lengths. It was shown that the proposed constant-pattern wave approach with the Langmuir model could well describe the breakthrough curves. The time required when the effluent concentration reached half of the feed concentration (t_1/2) decreased with increasing feed flow rate, but the mass transfer coefficient (K_La) increased. In addition, an increase in feed sorbate concentration led to a decrease of both values of t_1/2 and K _La. The effect of axial dispersion on breakthrough dynamics in these sorption systems was finally discussed.

Original language	English
Pages (from-to)	46-52
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	269
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2003.08.016
State	Published - 01 01 2004
Externally published	Yes

Keywords

Breakthrough curve
CTAB
Isotherm
Montmorillonite
Phenol
m -Nitrophenol
o-Cresol

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10.1016/j.jcis.2003.08.016

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title = "Sorption of phenols from water in column systems using surfactant-modified montmorillonite",

abstract = "The sorption of phenol, m-nitrophenol (m-NP), and o-cresol from water onto montmorillonite modified with cetyltrimethylammonium bromide (CTAB) in a column was studied. The sorption isotherms were fitted by the Langmuir equation. Column experiments were performed at 25°C to determine the breakthrough curves at different flow rates, feed sorbate concentrations, and bed lengths. It was shown that the proposed constant-pattern wave approach with the Langmuir model could well describe the breakthrough curves. The time required when the effluent concentration reached half of the feed concentration (t1/2) decreased with increasing feed flow rate, but the mass transfer coefficient (KLa) increased. In addition, an increase in feed sorbate concentration led to a decrease of both values of t1/2 and K La. The effect of axial dispersion on breakthrough dynamics in these sorption systems was finally discussed.",

keywords = "Breakthrough curve, CTAB, Isotherm, Montmorillonite, Phenol, m -Nitrophenol, o-Cresol",

author = "Juang, {Ruey Shin} and Lin, {Su Hsia} and Tsao, {Kung Hsuen}",

year = "2004",

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doi = "10.1016/j.jcis.2003.08.016",

language = "英语",

volume = "269",

pages = "46--52",

journal = "Journal of Colloid and Interface Science",

issn = "0021-9797",

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TY - JOUR

T1 - Sorption of phenols from water in column systems using surfactant-modified montmorillonite

AU - Juang, Ruey Shin

AU - Lin, Su Hsia

AU - Tsao, Kung Hsuen

PY - 2004/1/1

Y1 - 2004/1/1

N2 - The sorption of phenol, m-nitrophenol (m-NP), and o-cresol from water onto montmorillonite modified with cetyltrimethylammonium bromide (CTAB) in a column was studied. The sorption isotherms were fitted by the Langmuir equation. Column experiments were performed at 25°C to determine the breakthrough curves at different flow rates, feed sorbate concentrations, and bed lengths. It was shown that the proposed constant-pattern wave approach with the Langmuir model could well describe the breakthrough curves. The time required when the effluent concentration reached half of the feed concentration (t1/2) decreased with increasing feed flow rate, but the mass transfer coefficient (KLa) increased. In addition, an increase in feed sorbate concentration led to a decrease of both values of t1/2 and K La. The effect of axial dispersion on breakthrough dynamics in these sorption systems was finally discussed.

AB - The sorption of phenol, m-nitrophenol (m-NP), and o-cresol from water onto montmorillonite modified with cetyltrimethylammonium bromide (CTAB) in a column was studied. The sorption isotherms were fitted by the Langmuir equation. Column experiments were performed at 25°C to determine the breakthrough curves at different flow rates, feed sorbate concentrations, and bed lengths. It was shown that the proposed constant-pattern wave approach with the Langmuir model could well describe the breakthrough curves. The time required when the effluent concentration reached half of the feed concentration (t1/2) decreased with increasing feed flow rate, but the mass transfer coefficient (KLa) increased. In addition, an increase in feed sorbate concentration led to a decrease of both values of t1/2 and K La. The effect of axial dispersion on breakthrough dynamics in these sorption systems was finally discussed.

KW - Breakthrough curve

KW - CTAB

KW - Isotherm

KW - Montmorillonite

KW - Phenol

KW - m -Nitrophenol

KW - o-Cresol

UR - http://www.scopus.com/inward/record.url?scp=0344925779&partnerID=8YFLogxK

U2 - 10.1016/j.jcis.2003.08.016

DO - 10.1016/j.jcis.2003.08.016

M3 - 文章

AN - SCOPUS:0344925779

SN - 0021-9797

VL - 269

SP - 46

EP - 52

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 1

ER -

Sorption of phenols from water in column systems using surfactant-modified montmorillonite

Abstract

Keywords

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