Butane extraction of model organic pollutants from water

Chun Yang; Khay Chuan Teo; Yan Rong Xu

doi:10.1016/j.jhazmat.2003.12.007

Butane extraction of model organic pollutants from water

Chun Yang^*, Khay Chuan Teo, Yan Rong Xu

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

In this study, n-butane (n-C₄H₁₀), a by-product of the oil refining process, was used as the extractant to remove various model organic pollutants including halogenated hydrocarbons, phenols and aromatic compounds from aqueous matrices. The presence of salt, inorganic acid and dissolved organic materials in the aqueous matrix were found to have little influence on the removal efficiency. High removal efficiencies are readily achievable for a great number of organic pollutants. The removal efficiencies for hydrophobic pollutants were greater than 90% for a single stripping stage for pollutants with a distribution constants (K_D) greater than 45 and for a n-butane to aqueous phase ratio of 1-5. Results were also reported for the removal of residual butane in treated effluent by combinations of depressurization, air stripping and elevating operating temperature.

Original language	English
Pages (from-to)	77-83
Number of pages	7
Journal	Journal of Hazardous Materials
Volume	108
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jhazmat.2003.12.007
Publication status	Published - Apr 30 2004
Externally published	Yes

ASJC Scopus Subject Areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

Keywords

Distribution constant
Extraction
n-Butane
Organic pollutants
Water

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10.1016/j.jhazmat.2003.12.007

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title = "Butane extraction of model organic pollutants from water",

abstract = "In this study, n-butane (n-C4H10), a by-product of the oil refining process, was used as the extractant to remove various model organic pollutants including halogenated hydrocarbons, phenols and aromatic compounds from aqueous matrices. The presence of salt, inorganic acid and dissolved organic materials in the aqueous matrix were found to have little influence on the removal efficiency. High removal efficiencies are readily achievable for a great number of organic pollutants. The removal efficiencies for hydrophobic pollutants were greater than 90% for a single stripping stage for pollutants with a distribution constants (KD) greater than 45 and for a n-butane to aqueous phase ratio of 1-5. Results were also reported for the removal of residual butane in treated effluent by combinations of depressurization, air stripping and elevating operating temperature.",

keywords = "Distribution constant, Extraction, n-Butane, Organic pollutants, Water",

author = "Chun Yang and Teo, {Khay Chuan} and Xu, {Yan Rong}",

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TY - JOUR

T1 - Butane extraction of model organic pollutants from water

AU - Yang, Chun

AU - Teo, Khay Chuan

AU - Xu, Yan Rong

PY - 2004/4/30

Y1 - 2004/4/30

N2 - In this study, n-butane (n-C4H10), a by-product of the oil refining process, was used as the extractant to remove various model organic pollutants including halogenated hydrocarbons, phenols and aromatic compounds from aqueous matrices. The presence of salt, inorganic acid and dissolved organic materials in the aqueous matrix were found to have little influence on the removal efficiency. High removal efficiencies are readily achievable for a great number of organic pollutants. The removal efficiencies for hydrophobic pollutants were greater than 90% for a single stripping stage for pollutants with a distribution constants (KD) greater than 45 and for a n-butane to aqueous phase ratio of 1-5. Results were also reported for the removal of residual butane in treated effluent by combinations of depressurization, air stripping and elevating operating temperature.

AB - In this study, n-butane (n-C4H10), a by-product of the oil refining process, was used as the extractant to remove various model organic pollutants including halogenated hydrocarbons, phenols and aromatic compounds from aqueous matrices. The presence of salt, inorganic acid and dissolved organic materials in the aqueous matrix were found to have little influence on the removal efficiency. High removal efficiencies are readily achievable for a great number of organic pollutants. The removal efficiencies for hydrophobic pollutants were greater than 90% for a single stripping stage for pollutants with a distribution constants (KD) greater than 45 and for a n-butane to aqueous phase ratio of 1-5. Results were also reported for the removal of residual butane in treated effluent by combinations of depressurization, air stripping and elevating operating temperature.

KW - Distribution constant

KW - Extraction

KW - n-Butane

KW - Organic pollutants

KW - Water

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1-2

ER -

Butane extraction of model organic pollutants from water

Abstract

ASJC Scopus Subject Areas

Keywords

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