Regularities of sorption of cations of zinc and copper by natural sorbent

被引：3
作者：
Pimneva, Lyudmila [1 ]
Malyshkina, Elena [2 ]
Salnikova, Elena [3 ]
机构：
[1] Ind Univ Tyumen, Volodarskogo Str 38, Tyumen 625001, Russia
[2] Northern Transural State Agr Univ, Respubliki Str 7, Tyumen 625003, Russia
[3] Tyumen State Univ, Lenina Str 25, Tyumen 625000, Russia
来源：
15TH INTERNATIONAL SCIENTIFIC CONFERENCE UNDERGROUND URBANISATION AS A PREREQUISITE FOR SUSTAINABLE DEVELOPMENT | 2016年 / 165卷
关键词：
sorption; natural sorbent; sorption isotherms; the quantitative characteristics of the sorption process;
D O I：
10.1016/j.proeng.2016.11.784
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Basic laws of static ion exchange of copper cation (II) zinc from aqueous caustic by natural mineral kaolinite were investigated. Quantitative characteristics of sorption process of copper ions and zinc were obtained. The sorption capacity of kaolinite was studied at temperatures of 298, 318, and 333 K (mmol/g): for copper ions of 0.55 (at 298 K) 0.60 (318 K), 0.70 (333 K), and for zinc ions of 0.38 (298 K), 0.45 (318 K), 0.53 (333 K). The nature of interaction between the sorbate and sorbent is established. Balance of copper and zinc ions exchange on kaolinite by method of isotherms creation was investigated. It is established that isotherms belong to Lengmuir isotherms and according to BET classification they have the I type at copper ions sorption, and the IV type at zinc ions sorption. It is shown that the sorption parameter of interaction (K) characterizes the energy of interaction of copper ions with the sorbent. (C) 2016 The Authors. Published by Elsevier Ltd.
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收藏
页码：853 / 859
页数：7
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