不同粘土矿物材料对Cu2+的吸附特征

探讨了在不同矿物投加量、不同振荡时间、不同Cu2 浓度、不同矿物颗粒细度和不同pH条件下,钠基膨润土、膨胀蛭石和沸石3种粘土矿物对Cu2 的吸附效果,并比较了3种粘土矿物对Cu2 的吸附差异性.结果表明:对Cu2 的吸附效果依次为钠基膨润土＞沸石＞膨胀蛭石;较高的pH有助于粘土矿物对溶液中Cu2 的吸附,但考虑到实际操作的其他因素,不能把pH调得过高.

Absorption Characteristics of Different Clay Minerals to Cu2+

In this paper,the absorption effect of three clay minerals to Cu~(2 ) are studied in different conditions such as the amounts of mineral,shaking time,the concentration of Cu~(2 ),the granularity of mineral and the pH of solution,and the three clay minerals are Nabentonite,expansibility vermiculite and zeolite.The absorption differences of these three clay minerals to Cu~(2 ) are also compared.The results show that the absorption effect of three clay minerals to Cu~(2 ) follows the order of Nabentonite>zeolite>expansibility vermiculite;higher pH value helps to absorb the Cu~(2 ) in the solution,but pH value can't be too high considering the other factors in the actual operation.