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2008•Technology of Water TreatmentRequires access

ADSORPTION PERFORMANCE OF MACROPOROUS RESIN FOR PHENOL IN ORGANIC WASTEWATER

Jian Lv

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Abstract

The removal of phenol from organic wastewater by a macroporous absorption resin is described.Macroporous absorption resin XDA-200 showed good ability to adsorb phenol at pH = 6.40 in the HAc-NaAc medium.The statically saturated adsorption capacity is 277mg/g resin,phenol adsorbed on XDA-200 could be eluted by 0.5 mol/L NaOH quantitatively.The adsorption rate constants determined at various temperatures were k288= 2.33×10-2/s,k298 = 2.38×10-2/s and k308 = 2.44×10-2/s,respectively.The adsorption apparent activation energy Ea was 1.74kJ/mol.The adsorption behavior of XDA-200 resin for phenol obeys both the Freundlich and the Langmuir isotherms.The adsorption parameters of thermodynamics are ΔH=5.31kJ/mol,ΔS =53.7 J/mol·K,ΔG288K =-9.32 kJ/mol,ΔG298K =-18.0 kJ/mol,ΔG308K =-10.34 kJ/mol.

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The removal of phenol from organic wastewater by a macroporous absorption resin is described.Macroporous absorption resin XDA-200 showed good ability to adsorb phenol at pH = 6.40 in the HAc-NaAc medium.The statically saturated adsorption capacity is 277mg/g resin,phenol adsorbed on XDA-200 could be eluted by 0.5 mol/L NaOH quantitatively.The adsorption rate constants determined at various temperatures were k288= 2.33×10-2/s,k298 = 2.38×10-2/s and k308 = 2.44×10-2/s,respectively.The adsorption apparent activation energy Ea was 1.74kJ/mol.The adsorption behavior of XDA-200 resin for phenol obeys both the Freundlich and the Langmuir isotherms.The adsorption parameters of thermodynamics are ΔH=5.31kJ/mol,ΔS =53.7 J/mol·K,ΔG288K =-9.32 kJ/mol,ΔG298K =-18.0 kJ/mol,ΔG308K =-10.34 kJ/mol.

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Available abstract

The removal of phenol from organic wastewater by a macroporous absorption resin is described.Macroporous absorption resin XDA-200 showed good ability to adsorb phenol at pH = 6.40 in the HAc-NaAc medium.The statically saturated adsorption capacity is 277mg/g resin,phenol adsorbed on XDA-200 could be eluted by 0.5 mol/L NaOH quantitatively.The adsorption rate constants determined at various temperatures were k288= 2.33×10-2/s,k298 = 2.38×10-2/s and k308 = 2.44×10-2/s,respectively.The adsorption apparent activation energy Ea was 1.74kJ/mol.The adsorption behavior of XDA-200 resin for phenol obeys both the Freundlich and the Langmuir isotherms.The adsorption parameters of thermodynamics are ΔH=5.31kJ/mol,ΔS =53.7 J/mol·K,ΔG288K =-9.32 kJ/mol,ΔG298K =-18.0 kJ/mol,ΔG308K =-10.34 kJ/mol.

Key concepts: Adsorption, Phenol, Chemistry, Freundlich equation, Langmuir, Elution, Absorption (acoustics), Activation energy

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