地质学报（英文版）2008，Vol.82Issue(5)：1015-1019,5.
Removal of Arsenic(V) from Aqueous Solutions by Lanthanum-loaded Zeolite
Removal of Arsenic(V) from Aqueous Solutions by Lanthanum-loaded Zeolite
PU Hongping 1HUANG Jiangbo 2JIANG Zhe3
作者信息
- 1. Department of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 630093
- 2. The Center for Resource and Environment Research, Guilin Research Institute of Geology forMineral Resources, Guilin 541004
- 3. Technischen Universitat Miinchen, Germany
- 折叠
摘要
Abstract
A new adsorption process for the removal of As(V) ion from aqueous solutions is studied in this paper using lanthanum-loaded zeolite. The removal efficiency of different adsorbents, activated alumina and activated carbon are obtained in the study for comparison. The results show that lanthanum-loaded zeolite is an effective adsorbent for the removal of As(V) from aqueous solutions.Then, the pH effect and regeneration of modified zeolite on the As(V) removing efficiency are also assessed. It functions with a wide range of pH (2-8). After adsorption, zeolite adsorbed with As(V) ions can be regenerated successfully with 1 M NaOH. Based on the data obtained, an adsorption mechanism and the possible complex structure are tentatively presented. Compare to other adsorbents, easy availability of this adsorbent, excellent adsorption capacity, wide optimum pH range, and regeneration are expected to be utilized in practical operations.关键词
lanthanum-loaded zeolite/arsenic/adsorption mechanism/regenerationKey words
lanthanum-loaded zeolite/arsenic/adsorption mechanism/regeneration分类
天文与地球科学引用本文复制引用
PU Hongping,HUANG Jiangbo ,JIANG Zhe..Removal of Arsenic(V) from Aqueous Solutions by Lanthanum-loaded Zeolite[J].地质学报（英文版）,2008,82(5):1015-1019,5.
