| 可变电荷土壤对SO42-的吸附 |
| |
| 引用本文： | 章钢娅,张效年,于天仁.可变电荷土壤对SO42-的吸附[J].土壤学报,1987,24(1):14-17. |
| |
| 作者姓名： | 章钢娅 张效年 于天仁 |
| |
| 作者单位： | 中国科学院南京土壤研究所;中国科学院南京土壤研究所;中国科学院南京土壤研究所 |
| |
| 摘 要： | 本文研究了三种带可变电荷的红壤在恒定pH和Cl-离子存在条件下对SO42-的吸附.三种红壤的OH-释放量分别仅占SO42-吸附量的12%,14%和20%.砖红壤在pH5.0时的电荷变化占所吸附的SO42-的64-82%.作者认为大部分SO42-以置换水合基的方式被吸附.
|
ADSORPTION OF SULFATE BY VARIABLE CHARGE SOILS |
| |
| Zhang Gangy,Zhang Xiaonian and Yu Tianren.ADSORPTION OF SULFATE BY VARIABLE CHARGE SOILS[J].Acta Pedologica Sinica,1987,24(1):14-17. |
| |
| Authors: | Zhang Gangy Zhang Xiaonian and Yu Tianren |
| |
| Institution: | Institute of Soil Science, Academic Sinica, Nanjing;Institute of Soil Science, Academic Sinica, Nanjing;Institute of Soil Science, Academic Sinica, Nanjing |
| |
| Abstract: | Adsorption of sulfate by three red soils carrying variable amounts of electrical charge at constant pH in the pretence of Cl- ions was studied.The hydroxyl ions released from Red earth,lateritic red earth and latosol accounted for only 12%,14% and 20% of the amounts of sulfate adsorbed by the three soils respectively.For a latosol at pH 5.0,the change in electrical charge accounted for 64-82% of the adsorbed sulfate.It is suggested that most of the sulfate was adsorbed through the displacement of coordinated water molecules in the surface of soil particals. |
| |
| Keywords: | |
|
| 点击此处可从《土壤学报》浏览原始摘要信息 |
| 点击此处可从《土壤学报》下载免费的PDF全文 |
|
