The adsorption capacity of biologically modified zeolite with respect to copper-containing effluents (Cu(II)-Fe(III), Cu(II)-Fe(III)-Ni(II), Cu(II)-Fe(II)-Zn(II), and Cu(II)-Fe(II)-Ni(II)-Zn(II)) has been investigated in order to apply it for industrial effluents treatment. Obtained bio-zeolite was characterized using neutron activation analysis, confocal laser scanning microscopy, and scanning electron microscopy. The efficiency of metal ions removal was determined as a function of pH, copper concentration, time, and temperature. The metal sorption in analyzed systems showed to be pH-dependent. The equilibrium adsorption data were interpreted using Freundlich and Langmuir isotherms and the adsorption mechanism was investigated by kinetic studies. The sorption of Cu(II) and Zn(II) fitted well pseudo-first and pseudo-second-order models, while Ni(II) sorption was better described by the Elovich model. The thermodynamic parameters, ∆G°, ∆H°, and ∆S were evaluated to understand the nature of the sorption process. Obtained results show that bio-zeolite is of interest for heavy metal ions removal from industrial effluents.

生物改性沸石对含铜废水（Cu(II)-Fe(III)、Cu(II)-Fe(III)-Ni(II)、Cu(II)-Fe(II)-的吸附能力为了将其应用于工业废水处理，对Zn(II)和Cu(II)-Fe(II)-Ni(II)-Zn(II))进行了研究。使用中子活化分析、共焦激光扫描显微镜和扫描电子显微镜对获得的生物沸石进行表征。金属离子去除效率被确定为 pH、铜浓度、时间和温度的函数。分析系统中的金属吸附显示出 pH 依赖性。使用 Freundlich 和 Langmuir 等温线解释平衡吸附数据，并通过动力学研究研究吸附机理。Cu(II)和Zn(II)的吸附符合准一级和准二级模型，而Ni(II)的吸附可以通过Elovich模型更好地描述。评估热力学参数 ΔG°、ΔH° 和 ΔS，以了解吸附过程的性质。获得的结果表明生物沸石对于去除工业废水中的重金属离子具有重要意义。