论文部分内容阅读
在静态法研究纳米腐植酸吸附模拟含镉废水基础上搭建考察模拟含镉废水中镉离子在吸附剂上动态吸附及洗脱特性的吸附柱实验装置,考察镉离子溶液浓度、吸附(脱附)温度、共存离子和进料流速对穿透吸附量和饱和吸附量的影响,运用Thomas模型研究了纳米腐植酸柱吸附过程动力学机理,测定了再生后纳米腐植酸的穿透吸附量和饱和吸附量。结果表明:初始镉离子浓度150 mg/L和流
On the basis of studying the simulated humic acid adsorption simulated wastewater containing cadmium by static method, an experimental device of adsorption column for simulating the dynamic adsorption and elution characteristics of cadmium ions in the cadmium-containing wastewater was established. The effects of cadmium ion concentration, adsorption (desorption) Temperature, coexisting ions and feed flow rate on the penetration and the amount of saturated adsorption, the Thomas model was used to study the kinetics of nano-humic acid column adsorption process, the measured nano-humic acid after regeneration through the adsorption capacity and saturation adsorption the amount. The results showed that: initial cadmium concentration of 150 mg / L and flow