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首页> 外文期刊>Desalination: The International Journal on the Science and Technology of Desalting and Water Purification >Equilibrium and kinetic studies of methyl orange and methyl violet adsorption on activated carbon derived from Phragmites australis
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Equilibrium and kinetic studies of methyl orange and methyl violet adsorption on activated carbon derived from Phragmites australis

机译:芦苇活性炭吸附甲基橙和甲基紫的平衡和动力学研究

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摘要

The adsorption of methyl orange and methyl violet from aqueous solutions by Phragmites australis activated carbon (PAAC) was studied in a batch adsorption system. The adsorption studies include both equilibrium adsorption isotherms and kinetics. Several isotherm models were investigated and the adsorption isotherm data were best represented by the Temkin isotherms. The kinetic data were well described by the pseudo-second-order kinetic model. The mechanism of the adsorption process was determined from the intraparticle diffusion model. The results indicate that PAAC could be employed as a low-cost alternative for the removal of the textile dyes from effluents.
机译:在间歇吸附系统中研究了芦苇活性炭(PAAC)对水溶液中甲基橙和甲基紫的吸附。吸附研究包括平衡吸附等温线和动力学。研究了几种等温线模型,并用Temkin等温线最能代表吸附等温线数据。动力学数据通过伪二级动力学模型得到了很好的描述。吸附过程的机理由颗粒内扩散模型确定。结果表明,PAAC可以用作从废水中去除纺织品染料的低成本替代品。

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