A comprehensive study has been hold as a function of ionic strength, pH, equilibrium (Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models), kinetic (pseudo-first order, pseudo-second order and intraparticular kinetic models) and thermodynamic for the removal of carbamazepine (CBZ) from its aqueous solutions onto bentonite. A statistical experimental design method (Box-Behnken) has been applied for the optimal adsorption conditions (0.089 g resin/10.31 mL solution under 144 rpm mixing speed of shaking bath) in order to achieve the maximum yield (≈80% removal). Partition coefficient (PC) was also employed for the evaluation of the bentonite clay's performance. The equilibrium time was determined as 15 min depending on the kinetic study, where the maximum adsorption capacity (2.3550 mg g^-1) and PC (0.0684 mg g^-1 μM^-1) were achieved for an initial CBZ concentration of ≈30 mg L^-1. Effects of pH (3, 5, 7, 9 and 11) and ions (chloride, fluoride and lead) on the CBZ adsorption have been explored. The acidic media (pH ~ 3) enhanced the removal, while ionic strength caused to drop the adsorption from 22 to 51% depending on the ion and its concentration (0.17, 0.86 and 1.71 mol L^-1 for chloride; 0.24, 0.48 and 0.95 mol L^-1 for floride; 0.03, 0.15 and 0.30 mol L^-1 for lead) in the solution. Finally, the nature of the adsorption process for the CBZ removal onto bentonite has been detected to be a non-spontaneous and endothermic, having a tendency to an irregular structure.

已经对离子强度，pH，平衡（Langmuir，Freundlich，Temkin和Dubinin-Radushkevich等温模型），动力学（伪一阶，伪二阶和颗粒内动力学模型）和热力学进行了综合研究。将卡马西平（CBZ）从其水溶液中除去到膨润土上。为了获得最大收率（约80％去除率），已将统计实验设计方法（Box-Behnken）用于最佳吸附条件（0.089 g树脂/10.31 mL溶液，在144 rpm的摇床混合速度下）。分配系数（PC）也用于评估膨润土的性能。根据动力学研究确定平衡时间为15分钟，其中最大吸附容量（2.3550 mg g ^-1）和PC（0.0684毫克克^-1 μM ^-1）分别实现为≈30毫克的L的初始浓度CBZ ^-1。研究了pH（3、5、7、9和11）和离子（氯离子，氟离子和铅离子）对CBZ吸附的影响。酸性介质（pH〜3）增强了去除效果，而离子强度则使吸附率从22％降至51％，具体取决于离子及其浓度（氯离子为0.17、0.86和1.71 mol L ^-1；氯离子为0.24、0.48和0.95摩尔大号^-1若是氟化物; 0.03，0.15和0.30摩尔大号^-1为铅）在溶液中。最后，已检测到用于将膨润土去除CBZ的吸附过程的性质是非自发吸热的，具有不规则结构的趋势。