Adsorptive removal of phthalate ester (Di-ethyl phthalate) from aqueous phase by activated carbon: A kinetic study

被引：102
|
作者：
Mohan, S. Venkata [1 ]
Shailaja, S. [1 ]
Krishna, M. Rama [1 ]
Sarma, P. N. [1 ]
机构：
[1] Indian Inst Chem Technol, Biochem & Environm Engn Ctr, Hyderabad 500007, Andhra Pradesh, India
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 146卷 / 1-2期
关键词：
phthalate; di-ethyl phthalate; adsorption; activated carbon; HPLC; kinetic models; isothermal models;
D O I：
10.1016/j.jhazmat.2006.12.020
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Adsorptive studies were carried out on Di-ethyl phthalate (DEP) removal from aqueous phase onto activated carbon. Batch sorption studies were performed and the results revealed that activated carbon demonstrated ability to adsorb DER Influence of varying experimental conditions such as DEP concentration, pH of aqueous solution, and dosage of adsorbent were investigated on the adsorption process. Sorption interaction of DEP onto activated carbon obeyed the pseudo second order rate equation. Experimental data showed good fit with both the Langmuir and Freundlich adsorption isotherm models. DEP sorption was found to be dependent on the aqueous phase pH and the uptake was observed to be greater at acidic pH. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：278 / 282
页数：5
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