期刊论文

中文

中南林业科技大学学报

1673-923X

2004

24

1

30-33

10.3969/j.issn.1673-923X.2004.01.016

(2003-2):湖南省株洲市科技局科研项目

本校为第一机构

研究了蛭石对污水中氨氮的吸附容量及水中pH、温度、浓度、蛭石用量对氨氮去除率的影响.结果表明,当蛭石的饱和吸附量为20.83 mg/g,pH在2.0～6.0范围内时,蛭石吸附量随pH值升高而增大,而在pH6.0～9.0范围内随pH升高而降低;温度在10～35℃范围内对氨氮吸附具有负影响;氨氮初始浓度在小于50 mg/L时,其去除率随着蛭石用量的增加而增大.为蛭石作为一种新型填料提供了基础数据和理论依据.

The present study was conducted to determine the adsorption capacity of NH_4-N from wastewater by vermiculite and to test the influence of pH value, temperature, ammonium concentration and applied quantity of vermiculite minerals on the removal rate of ammonium. The saturated ammonium adsorption capacity (Q_0) of vermiculite was found to be 20.83 mg·g~(-1). Within the pH rang 2.0～6.0, the adsorption quantity increased with increasing pH value, and then decreased with a further rise of the value from 6.0 to 9.0. The temperature had a negative ...