Abstract:

With oscillating adsorption experiment, the preparation method of playgorskite-steel slag granulated adsorbent and its adsorbability in copper-containing solution have been discussed. The results indicate that the optimum condition of preparing particle adsorbent is m(playgorskite):m(steel slag)= 100:100 and by roasting at a temperature of 400 ℃ for 2 h. It has a capacity of adsorbing copper of 169.5mg/g, and the adsorption curve of Cu²⁺ on it confirms with Langmuir equation. Meanwhile, the regeneration test of adsorbent shows that:when the playgorskite-steel slag granulated adsorbent is reused, the adsorption quantity of it decreases smoothly, so we can draw a conclusion that playgorskite-steel slag granulated adsorbent is reuseable.

Key words: playgorskite, steel slag, adsorbent, copper ion

摘要：

通过振荡吸附实验，研究了坡缕石-钢渣颗粒吸附剂的制备方法及颗粒吸附剂在含铜溶液中的吸附特性。结果表明，制备颗粒吸附剂的优化条件为：m（坡缕石）：m（钢渣）=1001：00，在400℃下焙烧2 h。颗粒吸附剂对铜的吸附容量高达169.5mg/g，吸附等温线属Langmuir型。吸附剂的再生实验表明：再生后吸附剂的吸附量下降平缓，可以重复使用。

关键词: 坡缕石, 钢渣, 吸附剂, 铜离子

CLC Number: 

• X703.1