地质学报（英文版）2006，Vol.80Issue(2)：212-218,7.
Adsorption of Ammonium and Heavy Metal Ions on Industrial Vermiculite from the Yuli Mine in Xinjiang, China
Adsorption of Ammonium and Heavy Metal Ions on Industrial Vermiculite from the Yuli Mine in Xinjiang, China
摘要
Abstract
The present work discusses the mineralogy, saturated adsorption of ammonium and adsorption of heavy metal ions (Cu2+, Pb2+ and Zn2+) on industrial vermiculite samples from the Yuli Mine in Xinjiang Autonomous Region. The saturated adsorption capacity of ammonium and the affection factors of adsorption of Cu2+, Pb2+ and Zn2+ are discussed on the basis of the mineralogical characteristics of the industrial vermiculite samples. The saturated adsorption capacities of ammonium are between 56.02 and 98.42 mmol/100g. The time of adsorption equilibrium is about 30-60 min, and the pH values and concentration of the ion solution significantly affect the adsorption capacities of the heavy metal ions. The adsorption capabilities of the heavy metal ions on industrial vermiculite are almost the same in the low ion concentration solutions, characterized by a sequence of Zn2+＞Pb2+＞Cu2+ for adsorption capacity in solutions with relatively high ion concentration. The results have practical significance for the application of the industrial vermiculite to treating wastewater containing ammonium or heavy metal ions.关键词
industrial vermiculite/ammonium/heavy metal ion/adsorption capacity and adsorption efficiencyKey words
industrial vermiculite/ammonium/heavy metal ion/adsorption capacity and adsorption efficiency分类
天文与地球科学引用本文复制引用
PENG Tongjiang,ZHANG Baoshu,LIU Fusheng..Adsorption of Ammonium and Heavy Metal Ions on Industrial Vermiculite from the Yuli Mine in Xinjiang, China[J].地质学报（英文版）,2006,80(2):212-218,7.基金项目
This study was supported by the National Natural Science Foundation of China (Grant 40102006). （Grant 40102006）
