ABSTRACT Present study deals with the binary batch adsorption of aniline (AN) and nitrobenzene (NB) onto granular-activated carbon (GAC). For single component, the adsorptive uptake of AN and NB increased and percent removal decreased with an increase in initial adsorbate concentration. The AN loading capacity of GAC was enhanced from 1.41 to 17 mg/g for the changes in initial AN concentration (C0,AN) from 23 to 540 mg/L. Similarly, the NB loading capacity was increased from 2.05 to 37.4 mg/g for the changes in C0,NB from 21 to 392 mg/L. The single component equilibrium adsorption uptake of AN and NB was best-fitted by Brunauer–Emmett–Teller (BET) isotherm model. The single-component BET constant, qm, for NB and AN are found to be about 50.01 and 15.57 mg/g, respectively. The equilibrium adsorption capacity data is well represented by extended Langmuir model. Maximum adsorption uptake of the binary system is found to be 81.25 mg/g.

中文翻译：

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模拟苯胺和硝基苯在颗粒活性炭上的单一和二元吸附行为

摘要 本研究涉及苯胺 (AN) 和硝基苯 (NB) 对颗粒活性炭 (GAC) 的二元批量吸附。对于单一组分，随着初始吸附物浓度的增加，AN 和 NB 的吸附吸收增加，去除百分比降低。对于初始 AN 浓度 (CO,AN) 从 23 到 540 mg/L 的变化，GAC 的 AN 负载能力从 1.41 增加到 17 mg/g。类似地，对于 CO,NB 从 21 到 392 mg/L 的变化，NB 负载能力从 2.05 增加到 37.4 mg/g。AN 和 NB 的单组分平衡吸附吸收最适合 Brunauer-Emmett-Teller (BET) 等温线模型。发现 NB 和 AN 的单组分 BET 常数 qm 分别约为 50.01 和 15.57 mg/g。平衡吸附容量数据由扩展的朗缪尔模型很好地表示。发现二元系统的最大吸附量为 81.25 mg/g。