Removal of phenol from petroleum refinery wastewater through adsorption on date-pit activated carbon

被引：249

作者：

El-Naas, Muftah H. ^{[1
]}

Al-Zuhair, Sulaiman ^{[1
]}

Abu Alhaija, Manal ^{[1
]}

机构：

[1] UAE Univ, Chem & Petr Engn Dept, Al Ain 17555, U Arab Emirates

来源：

CHEMICAL ENGINEERING JOURNAL | 2010年 / 162卷 / 03期

关键词：

Phenol; Petroleum refinery wastewater; Date-pit; Adsorption; Regeneration; AQUEOUS-SOLUTIONS; SURFACE-CHEMISTRY; BATCH ADSORPTION; CONGO-RED; REGENERATION; SORPTION; EQUILIBRIUM; KINETICS; DEGRADATION; IONS;

D O I：

10.1016/j.cej.2010.07.007

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Experiments were carried out to evaluate the batch adsorption of phenol from petroleum refinery wastewater on a locally prepared date-pit activated carbon (DP-AC). Adsorption equilibrium and kinetics data were determined for the uptake of phenol from real refinery wastewater and from synthetically prepared aqueous phenol solution. The data were fitted to several adsorption isotherm and kinetics models. Sips as well as Langmuir models gave the best fit for equilibrium isotherms, whereas the kinetics data were best fitted by the pseudo-second order model. The enthalpy of adsorption showed an exothermic nature of the adsorption process. Several chemical and thermal techniques were tested for the regeneration of saturated activated carbon; using ethanol was found to be the most effective with more than 86% regeneration efficiency after four regeneration cycles. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：997 / 1005

页数：9

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