【摘要】 从坡缕石粘土提纯入手 ,进行了坡缕石吸附Zn2 + 的实验研究 ,结果表明坡缕石对水中Zn2 + 的吸附性能主要受振荡速度、吸附时间、溶液 pH值、吸附剂用量等因素影响 ,30℃时坡缕石对Zn2 + 的等温吸附曲线同时符合Lang muir方程和BET方程。在本实验条件下 ,坡缕石对水中的Zn2 + (2 0mL ,Zn2 + 浓度均为 5 0mg/L)的最佳吸附工艺条件为 :振荡速度 15 0r/min ,吸附时间 12 0min ,吸附剂用量 0 .12 0 g ,溶液pH为 6 .2 ,此条件下去除率达到了95 .5 %。更多还原

【Abstract】 The experiment has been done for adsorption of Zn²⁺ on palygorskite based on purification of palygorskite clay, the result shows that the adsorption is mainly affected by such factors as vibrating rate, adsorption time, amount of adsorbent and aqueous pH, and the adsorption curve （30℃） of Zn²⁺ on palygorskite conforms with Langmuir equation or BET equation. In this study, the optimized technological conditions are vibrating rate （150 r/min）, adsorption time 120 min, amount of adsorbent 0.120 g, and pH 6.2. The corresponding removal efficiency of Zn²⁺ is 95.5%.更多还原