Modelling studies for the adsorptive eradication of a dye Rose Bengal dye in aqueous solutions using an adsorbent perlite have been exploited. A batch mode adsorption technique was performed to find the influence of contact time, strength of the Rose bengal dye, dosage of the perlite, pH and temperature. The equilibrium of the adsorption has been achieved only after the contact time of 40 min. The kinetic behaviour of the adsorption has been evaluated using the pseudo first-order as well as the second-order types. The achieved kinetic equation statistics of pseudo second-order kinetic equation has a close proximity with unity. Equilibrium adsorption values are obtained from the Freundlich and Langmuir isotherm. From the correlation data, Freundlich isotherm remains suited to describe the adsorption behaviour of Rose bengal dye on the perlite. From the experimental data, the thermodynamic parameters like ∆Ho, ∆So, and ∆Go are assessed. The calculated result was shown that the adsorption behaviour is exothermic as well as immediate in description. The dimensionless separation factor has been shown that perlite is the substitute to other adsorbents for the elimination of rose Bengal dye from the aqueous solution.

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使用天然吸附剂珍珠岩从水溶液中去除玫瑰红染料的吸附模型研究

已经开发了使用吸附剂珍珠岩在水溶液中吸附消除染料玫瑰红染料的建模研究。进行批量模式吸附技术以发现接触时间、玫瑰红染料强度、珍珠岩用量、pH 值和温度的影响。只有在 40 分钟的接触时间后才能达到吸附平衡。吸附的动力学行为已使用伪一级和二级类型进行评估。所获得的拟二级动力学方程的动力学方程统计量接近于统一。从 Freundlich 和 Langmuir 等温线获得平衡吸附值。从相关数据来看，Freundlich 等温线仍然适合描述玫瑰红染料在珍珠岩上的吸附行为。根据实验数据，可以评估热力学参数，如 ∆Ho、∆So 和 ∆Go。计算结果表明吸附行为是放热的，并且在描述中是直接的。无量纲分离因子已表明珍珠岩是其他吸附剂的替代品，可用于从水溶液中去除玫瑰红染料。