【摘要】 对影响膨润土吸附重金属离子Zn2 + 的因素进行的初步研究表明 :在一定条件下 ,提高吸附温度 ,提高溶液的 pH值 ,增加溶液中Zn2 + 初始浓度 ,增加吸附作用时间 ,提高搅拌速度和减小膨润土的粒度都能不同程度地提高吸附量。同时讨论了吸附机理。更多还原

【Abstract】 In this paper, a preliminary study is carried out on factors affecting the adsorption of heavy metals (Zn 2+) by bentonite. It has been found that the quantity of adsorption increases with the increase of adsorption temperature, initial concentration of heavy metal cations, pH value of solution, time of adsorption and speed of stirring, and the decrease of bentonite particulate size. The mechanism of adsorption affected by various factors is also discussed.更多还原