Removal of an endocrine disrupting chemical (17α-ethinyloestradiol) from wastewater effluent by activated carbon adsorption: Effects of activated carbon type and competitive adsorption

Augustine Ifelebuegu, J. N. Lester, J. Churchley, E. Cartmell

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22 Citations (Scopus)

Abstract

Granular activated carbon has been extensively used for the adsorption of organic micropollutants for potable water production. In this study the removal of an endocrine disrupting chemical from wastewater final effluent by three types of granular activated carbon (wood, coconut and coal based) has been investigated in batch adsorption experiments and correlated with the removal of chemical oxygen demand (COD), total organic carbon (TOC) and ultraviolet absorbance (UV). The results obtained demonstrated 17α-ethinyloestradiol (EE2) removals of 98.6%, 99.3%, and 96.4% were achieved by the coal based (ACo), coconut based (ACn) and wood based (AWd) carbons respectively at the lowest dose of carbon (0.1gl−1). The other adsorbates investigated all exhibited good removal. At an equilibrium concentration of 7mgl−1 the COD adsorption capacities were 3.16mg g−1, 4.8 mg g−1 and 7.1 mg g−1 for the wood, coconut and coal based carbons respectively. Overall, the order of removal efficiency of EE2 and the other adsorbates for the three activated carbons was ACn > ACo > AWd. The adsorption capacities of the carbons were found to be reduced by the effects of other competing adsorbates in the wastewater effluent.
Original languageEnglish
Pages (from-to)1343-1349
Number of pages7
JournalEnvironmental Technology
Volume27
Issue number12
DOIs
Publication statusPublished - 1 Dec 2006

Fingerprint

Endocrine Disruptors
Ethinyl Estradiol
Activated carbon
activated carbon
Effluents
Wastewater
Coal
effluent
adsorption
Wood
Adsorption
wastewater
Adsorbates
Carbon
Chemical oxygen demand
carbon
coal
chemical oxygen demand
Organic carbon
absorbance

Keywords

  • Adsoption
  • Endocrine
  • Freundlich Isotherm
  • 17Alpha-Ethinyloestradiol
  • Wastewater

Cite this

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title = "Removal of an endocrine disrupting chemical (17α-ethinyloestradiol) from wastewater effluent by activated carbon adsorption: Effects of activated carbon type and competitive adsorption",
abstract = "Granular activated carbon has been extensively used for the adsorption of organic micropollutants for potable water production. In this study the removal of an endocrine disrupting chemical from wastewater final effluent by three types of granular activated carbon (wood, coconut and coal based) has been investigated in batch adsorption experiments and correlated with the removal of chemical oxygen demand (COD), total organic carbon (TOC) and ultraviolet absorbance (UV). The results obtained demonstrated 17α-ethinyloestradiol (EE2) removals of 98.6{\%}, 99.3{\%}, and 96.4{\%} were achieved by the coal based (ACo), coconut based (ACn) and wood based (AWd) carbons respectively at the lowest dose of carbon (0.1gl−1). The other adsorbates investigated all exhibited good removal. At an equilibrium concentration of 7mgl−1 the COD adsorption capacities were 3.16mg g−1, 4.8 mg g−1 and 7.1 mg g−1 for the wood, coconut and coal based carbons respectively. Overall, the order of removal efficiency of EE2 and the other adsorbates for the three activated carbons was ACn > ACo > AWd. The adsorption capacities of the carbons were found to be reduced by the effects of other competing adsorbates in the wastewater effluent.",
keywords = "Adsoption, Endocrine, Freundlich Isotherm, 17Alpha-Ethinyloestradiol, Wastewater",
author = "Augustine Ifelebuegu and Lester, {J. N.} and J. Churchley and E. Cartmell",
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T1 - Removal of an endocrine disrupting chemical (17α-ethinyloestradiol) from wastewater effluent by activated carbon adsorption

T2 - Effects of activated carbon type and competitive adsorption

AU - Ifelebuegu, Augustine

AU - Lester, J. N.

AU - Churchley, J.

AU - Cartmell, E.

PY - 2006/12/1

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N2 - Granular activated carbon has been extensively used for the adsorption of organic micropollutants for potable water production. In this study the removal of an endocrine disrupting chemical from wastewater final effluent by three types of granular activated carbon (wood, coconut and coal based) has been investigated in batch adsorption experiments and correlated with the removal of chemical oxygen demand (COD), total organic carbon (TOC) and ultraviolet absorbance (UV). The results obtained demonstrated 17α-ethinyloestradiol (EE2) removals of 98.6%, 99.3%, and 96.4% were achieved by the coal based (ACo), coconut based (ACn) and wood based (AWd) carbons respectively at the lowest dose of carbon (0.1gl−1). The other adsorbates investigated all exhibited good removal. At an equilibrium concentration of 7mgl−1 the COD adsorption capacities were 3.16mg g−1, 4.8 mg g−1 and 7.1 mg g−1 for the wood, coconut and coal based carbons respectively. Overall, the order of removal efficiency of EE2 and the other adsorbates for the three activated carbons was ACn > ACo > AWd. The adsorption capacities of the carbons were found to be reduced by the effects of other competing adsorbates in the wastewater effluent.

AB - Granular activated carbon has been extensively used for the adsorption of organic micropollutants for potable water production. In this study the removal of an endocrine disrupting chemical from wastewater final effluent by three types of granular activated carbon (wood, coconut and coal based) has been investigated in batch adsorption experiments and correlated with the removal of chemical oxygen demand (COD), total organic carbon (TOC) and ultraviolet absorbance (UV). The results obtained demonstrated 17α-ethinyloestradiol (EE2) removals of 98.6%, 99.3%, and 96.4% were achieved by the coal based (ACo), coconut based (ACn) and wood based (AWd) carbons respectively at the lowest dose of carbon (0.1gl−1). The other adsorbates investigated all exhibited good removal. At an equilibrium concentration of 7mgl−1 the COD adsorption capacities were 3.16mg g−1, 4.8 mg g−1 and 7.1 mg g−1 for the wood, coconut and coal based carbons respectively. Overall, the order of removal efficiency of EE2 and the other adsorbates for the three activated carbons was ACn > ACo > AWd. The adsorption capacities of the carbons were found to be reduced by the effects of other competing adsorbates in the wastewater effluent.

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