ADSORPTION OF PHENOL FROM AQUEOUS SOLUTION BY WATER HYACINTH ASH

ADSORPTION OF PHENOL FROM AQUEOUS SOLUTION BY WATER HYACINTH ASH
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水葫芦灰对水溶液中苯酚的吸附

DOI：
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发表时间：
2007
期刊：
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影响因子：
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通讯作者：
M. Abedin
M. Abedin
中科院分区：
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文献类型：
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作者：
M. T. Uddin;M. Islam;M. Abedin

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被引文献

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研究了水葫芦灰对苯酚的吸附性能。在不同的实验条件下，苯酚的吸附量随pH值的增加而降低。采用Freundlich和Langmuir吸附模型对吸附平衡进行了数学描述，发现实验数据与Langmuir模型拟合得很好。间歇吸附模型的基础上的伪一级和伪二级模型的假设，被施加到检查的吸附动力学。结果表明，该反应符合准二级动力学模型。
The potential of water hyacinth ash for phenol adsorption from aqueous solution was studied. Batch kinetic and isotherm studies were carried out under varying experimental conditions of contact time, phenol concentration, adsorbent dosage and pH. The adsorption of phenol decreased with increasing pH. The Freundlich and Langmuir adsorption models were used for the mathematical description of adsorption equilibrium and it was found that the experimental data fitted very well to the Langmuir model. Batch adsorption models, based on the assumption of the pseudo-first-order and pseudosecond-order models, were applied to examine the kinetics of the adsorption. The results showed that kinetic data followed closely to the pseudo-second-order model.