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以虹州粪为吸附剂,测定了不同Cu-’ }7J始质量浓度、温度、pH、吸附时间等对虹州粪吸附Cu}}的影响,并对等温吸附特征、吸附动力学和热力学进行了系统分析结果表明:在温度25 0C , Cu-’ }7J始质量浓度87.9-575.0 m留L,虹州粪用量25 g/L、振荡速率200 r/xnin、吸附时间12h的条件下,吸附效率可达95.27%-98.07%,pH对吸附影响甚小;虹州粪对溶液中Cu}}的吸附过程符合准二级动力学模型,在不同温度下吸附呈现相似的非线性吸附等温线,且Freundlich模型对吸附过程的拟合优于Langxnuir模型,同时反应的吉布斯自由能△(}"<0,表明吸附过程是自发进行的吸热反应
The effect of different concentrations of Cu- ’} 7J, temperature, pH and adsorption time on Cu adsorption in feces of Hongzhou was determined by using Huzhou feces as adsorbent. The isothermal adsorption characteristics, adsorption kinetics and thermodynamics were also studied The results of the system analysis show that under the conditions of temperature 25 0C, concentration of 87.9-575.0 m in Cu- ’} 7J, dosage of 25 g / L in Hongzhou, 200 r / xnin oscillation rate and adsorption time of 12 h, The efficiency reaches up to 95.27% -98.07%, and pH has very little effect on the adsorption. The adsorption process of Cu} in the solution conforms to the quasi-second-order kinetic model. The adsorption shows similar non-linear adsorption isotherms at different temperatures, And Freundlich model fitting better than the Langxnuir model fitting Gibbs free energy and reaction △ (} & lt; 0, indicating that the adsorption process is a spontaneous endothermic reaction