The study aims to determine Cu(II) adsorption from wastewater in the laboratory condition using modified sewage sludge ash as adsorbent which was obtained from a thermal drying and incineration facility. This procedure was completed with an inexpensive pollutant material which has high metal-binding capacity and is available in abundant amounts. During experiments, the effects of particle size, pH, stirring speed, initial ion concentration, adsorbent dosage and temperature were investigated. Adsorption equilibrium was obtained in 10 min. Maximum Cu(II) removal was calculated as 83.63% with 20 mg L⁻¹ initial Cu(II) ion concentration and 5 g L⁻¹ adsorbent dosage. Kolmogorov–Smirnov normality test was performed to test the conformity of the data obtained as a result of the study to variance analysis, and it was determined that the data were distributed normally (p > 0.05). Levene test was performed for homogeneity test, and it was determined that the data were distributed homogeneously (p > 0.05). Langmuir was determined as the most suitable isotherm model for Cu(II) adsorption. Adsorption kinetics abided by the pseudo-second-order model. Based on kinetic studies, the adsorption process was endothermic with maximum adsorption capacity calculated as 7.53 mg g⁻¹. The results of thermodynamic research showed the adsorption reaction was spontaneous (ΔG° < 0), endothermic (ΔH° > 0) and reversible (ΔS° > 0 and close to zero).

该研究旨在使用从热干燥和焚烧设施中获得的改性污水污泥灰作为吸附剂，确定实验室条件下废水中的 Cu(II) 吸附。这个过程是用一种廉价的污染物材料完成的，这种材料具有高金属结合能力并且可以大量获得。在实验过程中，研究了粒径、pH、搅拌速度、初始离子浓度、吸附剂用量和温度的影响。在 10 分钟内达到吸附平衡。计算出的最大 Cu(II) 去除率为 83.63%，初始 Cu(II) 离子浓度为 20 mg L ^-1和 5 g L ^-1吸附剂用量。进行 Kolmogorov-Smirnov 正态性检验以检验作为研究结果获得的数据与方差分析的一致性，并确定数据呈正态分布（p  > 0.05）。均质性检验采用Levene检验，确定数据分布均匀（p  >0.05）。Langmuir 被确定为最适合 Cu(II) 吸附的等温线模型。吸附动力学遵循伪二级模型。基于动力学研究，吸附过程是吸热的，最大吸附容量计算为7.53 mg g ^-1。热力学研究结果表明吸附反应是自发的（ΔG °<0），吸热的（ΔG °<0）H ° > 0) 且可逆（Δ S ° > 0 且接近于零）。