期刊论文

中文

环境科学研究

1001-6929

2005

18

1

64-66+82-89

10.3321/j.issn:1001-6929.2005.01.017

中挪政府间技术合作项目（国科外字[1996]339）； 湖南省教育厅2004年产业化研究项目；

本校为第一机构

测定了给定pH和温度条件下反应平衡时NH4Cl溶液中蛭石的氨氮吸附量.结果显示,平衡时蛭石的氨氮吸附量Qe与溶液起始的氨氮质量浓度C和单位体积溶液的介质用量W的函数关系可用Langmuir方程描述,其等温吸附通式为:Qe=qmCW/[qm(Kw+W)+C].式中,单位介质吸附容量qm和介质系数Kw是独立于C和W的常数;qm代表介质对溶质的吸附能力;Kw代表介质与氨氮的亲和力.

Tests were conducted to measure the quantity of NH~+_4-N sorption at equilibrium by vermiculite minerals in NH_4Cl solution under constant pH and temperature conditions with objective to providing theoretical argument and as well basic parameters for use of vermiculite to remove NH~+_4-N in wastewater treatment. Analytical results showed that the relation of NH~+_4-N sorption quantity by vermiculite minerals at equilibrium Q_e with initial solution NH~+_4-N concentration C and sorbent quantity W can be described using Langmuir equation, with a common thermal sorption form: Q_e = q_mCW/[q_m(K_W...