Affiliation:
1. Voronezh State University of Engineering Technologies
Abstract
Abstract: An urgent ecological and technological problem is the purification of natural and waste water from nickel cations and control of their content, since nickel cations belong to the third class and are hazardous to human health. To date, a large number of methods for removing nickel (II) cations from water have been created, the main of which can be considered sorption. In turn, the literature contains a variety of information about the most effective sorbents for cleaning from nickel cations, which sometimes contradict each other. The work determined the equilibrium characteristics of the sorption of nickel (II) cations on various polar sorbents on cation exchangers porous carboxyl Tokem 200, chelated iminodicarboxylic Amberlite IRC 748, gel sulfonic cation exchanger KU-2, experimental phosphoric acid gel KFP; strongly basic gel anion exchanger AV-17, as well as natural adsorbents flint and shungite. Sorption isotherms were obtained and described by the Langmuir equation, and the most promising materials for removing nickel cations from aqueous media were established. It has been determined that the studied sorbents, according to their equilibrium sorption characteristics, can be arranged in the following order: Tokem 200> KFP> Amberlite IRC 748> AV-17> KU-2> Flint> Shungite. The most effective sorbents for removing nickel (II) cations from aqueous solutions can be considered a prototype of a phosphate cation exchanger for gel CFP and a carboxyl porous cation exchanger Tokem 200. separating nickel cations from an aqueous solution.
Publisher
FSBEI HE Voronezh State University of Engineering Technologies
Subject
General Agricultural and Biological Sciences
Reference23 articles.
1. Smirnova V.S., Khudorozhkova S.A., Ruchkinova O.I. Substantiation of optimal conditions for reagent purification of wash water from ions of heavy non-ferrous metals. Bulletin of PNRPU. Construction and architecture. 2019. vol. 10. no. 2. pp. 106–118. (in Russian).
2. Bocharnikov V.S., Meshcheryakov M.P., Denisova M.A. Study of the sorption properties of sorbents using ferrite reagents in wastewater treatment. Proceedings of the Nizhnevolzhsky AgroUniversity Complex: Science and Higher Professional Education 2019. no. 1 (59). Available at: https://cyberleninka.ru/article/n/issledovanie-sorbtsionnyh-svoystv-sorbentov-s-ispolzovaniem-ferritovyh-reagentov-pri-ochistke-stochnyh-vod/viewer (in Russian).
3. Astapov A.V., Peregudov Y.S., Niftaliev S.I. Sorption of nickel(II) cations by chelate fibrous sorbent FIBAN X 1. Journal of Physical Chemistry. 2017. vol. 91. no. 8. pp. 1397–1402. (in Russian).
4. Peregudov Y.S., Timkova A.V., Gorbunova E.M., Plotnikova S.E. The use of ion-exchange fiber at the stage of post-treatment of wastewater in galvanic production. Proccedings of VSUET. 2018. vol. 80. no. 4. pp. 330–336. doi: 10.20914/2310-1202-2018-4-330-336 (in Russian).
5. Maltsev G.I. Sorption of nickel on a weakly acidic cation exchanger Lewatit monoplus TP207. Scientific bases and practice of processing ores and technogenic raw materials. 2019. pp. 227–232. (in Russian).