【摘要】 采用静态法和动态法对阳离子交换树脂吸附Cd(Ⅱ)、Pb(Ⅱ)的行为进行了研究。考察了pH值、流速、吸附时间等条件对吸附效果的影响,优化了树脂洗脱再生的最佳条件。实验结果表明,732型强酸阳离子交换树脂能够有效地吸附废水中的Cd(Ⅱ)和Pb(Ⅱ)。对比两种交换方式,动态法具有操作简单、效率高、可连续运行等特点,具有较高的实用价值。更多还原

【Abstract】 Static and dynamic method were described for the adsorption of cadmium and lead by cation exchange resin. The experimental conditions including pH value, flow rate, adsorption time and the concentration of stripping agent were investigated and optimized. The results showed that efficient adsorption of Cd²⁺ and Pb²⁺ in wastewater can be observed using 732 cation exchange resins. The static and dynamic adsorption methods were compared and the later was used for its simplicity, efficiency and continuous operation.更多还原