Adsorptive removal of phthalate ester (Di-ethyl phthalate) from aqueous phase by activated carbon: a kinetic study.
Adsorptive removal of phthalate ester (Di-ethyl phthalate) from aqueous phase by activated carbon: a kinetic study.
复制标题
DOI：
10.1016/j.jhazmat.2006.12.020
复制
发表时间：
2007-07
影响因子：
13.6
通讯作者：
S. Venkata Mohan;S. Shailaja;M. Rama Krishna;P. N. Sarma
中科院分区：
文献类型：
--
作者：
S. Venkata Mohan;S. Shailaja;M. Rama Krishna;P. N. Sarma
对水相中邻苯二甲酸二乙酯(DEP)在活性炭上的吸附脱除进行了研究。批量吸附实验结果表明，活性碳具有吸附DEP的能力。考察了DEP浓度、水溶液pH值、吸附剂用量等实验条件对吸附过程的影响。DEP在活性碳上的吸附作用符合准二级速率方程。实验数据表明，吸附等温线符合Langmuir和Freundlich吸附等温式。DEP的吸附依赖于水相的pH，并且在酸性的pH下吸附更大。
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 DEP. 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.