天然蛭石对Cu^(2+)吸附性能的实验研究

Experimental Study on Adsorption Capacity of Natural Vermiculite to Cu^(2+)

天然蛭石作为吸附材料,可用于吸附水中铜离子。用蛭石作为Cu2+的吸附剂,分别考察吸附时间、蛭石投加量、pH、温度因素对吸附效果的影响。结果表明,在室温(20℃左右)条件下,pH值为6,蛭石投加量0.36%(占总量),吸附时间80min时,Cu2+的去除率可达90%以上。

The result indicated that modification with（NH4） 2SO4 was effective to improve the adsorption capacity of vermiculite.Under room temperature（nearly 20℃）,the rate of the removal of Cu2＋ would be above 90% when adsorption for 80min,dosage of vermiculite 2g,pH = 6.