【摘要】 研究了内蒙古赤峰沸石对水相中Ag+的吸附及其解吸过程。实验结果表明:沸石对水相中的银离子具有良好的吸附效果,沸石对溶液中银离子的吸附速度很快,5 min就达到了吸附平衡;在银离子质量浓度为216 mg/L,沸石用量为67 g/L时,吸附率为94%;在pH=4.5~9范围内均有较好的吸附效果;吸附搅拌速度和沸石的粒度对银离子的吸附过程影响不大。用柠檬酸钠能将沸石中吸附了的银离子有效的解吸下来,解吸率高达99%。更多还原

【Abstract】 The process of adsorption and desorption of Ag~+ in solution by Zeolite from Chifeng city Neimenggu Province was studied.The experimental results show that Zeolite has a favorable adsorbing effect.The adsorption rate of Ag~+ by Zeolite is very fast,and it takes only 5 min to get equilibrated adsorption.When Ag~+ concentration is 216 mg/L,and the use of Zeolite is 67 g/L,the adsorption rate reaches 94%.In pH=4.5～9,there is a fairly good adsorbing effect.The stirring speed and the granularity of Zeolite have little effect on the adsorption .Sodium citrate can well desorb Ag~+ which absorbed on Zeolite,and the rate of desorption reaches 90%.更多还原