期刊论文

中文

中南林业科技大学学报

1673-923X

2012

32

12

83-87

10.14067/j.cnki.1673-923x.2012.12.022

国家环保部[200909066]、科技部[2012BAC09803-4]、国家林业局[2010-43] 湖南省教育厅重点学科与重点实验室资助

本校为第一机构

以天然沸石和蛭石为吸附剂,采用等温吸附方法,研究其对Cu~(2+)的吸附性能。结果表明,天然沸石对Cu~(2+)的去除率略高于蛭石。天然沸石和蛭石的吸附容量p值分别为8.85 mg/g和6.99 mg/g。在实际应用中,天然沸石的单价低,吸附容量大,单位处理成本低,因此,天然沸石是人工湿地吸附缓冲单元理想的介质填料。

Vermiculite and zeolite are two common natural minerals with high level of cation exchange capability and surface. The adsorption behaviors of natural zeolite and vermiculite to copper ion were studied. The Cu^2 ion removal rate of natural zeolite was slightly higher than that of the vermiculite. The adsorption capacity （p） of the natural zeolite sample to adsorb Cu^2 and that of the vermiculite to adsorb Cu^2 were found to be 8.85 and 6.99 mg/g. In practical applications, natural zeolite is the ideal medium filler in wetlands, because the ad...