Novel nanocomposite sorbent was produced by depositing nanostructured water treatment residual (nWTR) onto zeolite (Ze) using high-energy ball milling process. The physicochemical properties of nanocomposite (Ze-nWTR) prior and after Cd adsorption were analyzed by SEM–EDX, FTIR, BET and XRD. A batch study of cadmium adsorption (Ze-nWTR) was performed at various process parameters (sorbent dose, contact time, solution pH, competing ions, initial concentration and temperature). The obtained data were fitted to various equilibrium and kinetics models. The Langmuir and power function models successfully described Cd adsorption equilibrium and kinetic processes, respectively. The maximum adsorption capacity (q_max) value of Cd by Ze-nWTR nanocomposite (147 mgg⁻¹) was 3 and 5.9 times higher than those of nWTR and zeolite sorbents, respectively. Increasing temperature from 287 to 307 K has resulted in increasing the maximum Cd adsorption capacity (q_max) of the nanocomposite from 147.9 to 270 mgg⁻¹. The calculated thermodynamics parameters suggested physical and chemical attraction between Cd and Ze-nWTR and the association of dissociative mechanism in Cd(II) sorption process. The excellent reusability and Cd removal ability of Ze-nWTR nanocomposite (98%) from industrial wastewater confirm its potential as promising adsorbent for wastewater treatment applications.

采用高能球磨工艺将纳米结构水处理残留物 (nWTR) 沉积到沸石 (Ze) 上，生产出新型纳米复合吸附剂。通过 SEM-EDX、FTIR、BET 和 XRD 分析了 Cd 吸附前后纳米复合材料 (Ze-nWTR) 的物理化学性质。在各种工艺参数（吸附剂剂量、接触时间、溶液 pH 值、竞争离子、初始浓度和温度）下进行了镉吸附 (Ze-nWTR) 的批量研究。获得的数据适合各种平衡和动力学模型。 Langmuir 模型和幂函数模型分别成功地描述了 Cd 吸附平衡和动力学过程。Ze-nWTR纳米复合材料对Cd的最大吸附容量（q _{max ）值（147 mgg} ^-1）分别比nWTR和沸石吸附剂高3倍和5.9倍。将温度从287 K升高到307 K导致纳米复合材料的最大Cd吸附容量( q _{max )从147.9 mgg -1 增加到270 mgg} ^-1。计算的热力学参数表明 Cd 和 Ze-nWTR 之间的物理和化学吸引力以及 Cd(II) 吸附过程中解离机制的关联。 Ze-nWTR 纳米复合材料（98%）具有出色的可重复使用性和从工业废水中去除镉的能力，证实了其作为废水处理应用有前景的吸附剂的潜力。