Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10
The authors have studied the conditions for forming sorption stationary front of Co2+ and Cu2+ to be absorbed in the dynamic mode by Na-form of cation exchanger KB-2E-10. According to the output curves data the sorption mechanism is mixed diffusive with high contribution of internal diffusion. The v...
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2019-05-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya-tpu.ru/archive/article/view/1331 |
| _version_ | 1797812453154750464 |
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| author | Lyudmila Bobkova Valentina Zharkova Vladimir Kozik |
| author_facet | Lyudmila Bobkova Valentina Zharkova Vladimir Kozik |
| author_sort | Lyudmila Bobkova |
| collection | DOAJ |
| description | The authors have studied the conditions for forming sorption stationary front of Co2+ and Cu2+ to be absorbed in the dynamic mode by Na-form of cation exchanger KB-2E-10. According to the output curves data the sorption mechanism is mixed diffusive with high contribution of internal diffusion. The values of the coefficient of internal diffusion of Co2+ and Cu2+ were calculated by the Turnitsky equation, coefficients of mass transfer in solution and Biot number (ratio of time scales internal and external diffusion stages of mass transfer) were calculated by the model of sorption dynamics. The value of internal diffusion coefficients for Cu2+ ions is lower than for Co2+ that corresponds to Cu2+ lower diffusion rate in sorbent. Biot value for Cu2+ is higher than for Co2+. The conclusion was made on the difference in ions diffusion rate in the sorbent due to the difference in the nature of Cu2+ and Co2+ interaction with its carboxyl groups. |
| first_indexed | 2024-03-13T07:38:44Z |
| format | Article |
| id | doaj.art-7f2cf9baa4a44c0b9f4b04a3be23c330 |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-03-13T07:38:44Z |
| publishDate | 2019-05-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-7f2cf9baa4a44c0b9f4b04a3be23c3302023-06-03T21:08:48ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302019-05-013243Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10Lyudmila BobkovaValentina ZharkovaVladimir KozikThe authors have studied the conditions for forming sorption stationary front of Co2+ and Cu2+ to be absorbed in the dynamic mode by Na-form of cation exchanger KB-2E-10. According to the output curves data the sorption mechanism is mixed diffusive with high contribution of internal diffusion. The values of the coefficient of internal diffusion of Co2+ and Cu2+ were calculated by the Turnitsky equation, coefficients of mass transfer in solution and Biot number (ratio of time scales internal and external diffusion stages of mass transfer) were calculated by the model of sorption dynamics. The value of internal diffusion coefficients for Cu2+ ions is lower than for Co2+ that corresponds to Cu2+ lower diffusion rate in sorbent. Biot value for Cu2+ is higher than for Co2+. The conclusion was made on the difference in ions diffusion rate in the sorbent due to the difference in the nature of Cu2+ and Co2+ interaction with its carboxyl groups.http://izvestiya-tpu.ru/archive/article/view/1331macroreticular carboxyl cationdynamicssorption kineticsthe output curvethe diffusion coefficient |
| spellingShingle | Lyudmila Bobkova Valentina Zharkova Vladimir Kozik Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10 Известия Томского политехнического университета: Инжиниринг георесурсов macroreticular carboxyl cation dynamics sorption kinetics the output curve the diffusion coefficient |
| title | Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10 |
| title_full | Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10 |
| title_fullStr | Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10 |
| title_full_unstemmed | Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10 |
| title_short | Sorption dynamics of Co2+ and Cu2+ ions by macroreticular carboxyl cation exchanger KB-2Е-10 |
| title_sort | sorption dynamics of co2 and cu2 ions by macroreticular carboxyl cation exchanger kb 2е 10 |
| topic | macroreticular carboxyl cation dynamics sorption kinetics the output curve the diffusion coefficient |
| url | http://izvestiya-tpu.ru/archive/article/view/1331 |
| work_keys_str_mv | AT lyudmilabobkova sorptiondynamicsofco2andcu2ionsbymacroreticularcarboxylcationexchangerkb2e10 AT valentinazharkova sorptiondynamicsofco2andcu2ionsbymacroreticularcarboxylcationexchangerkb2e10 AT vladimirkozik sorptiondynamicsofco2andcu2ionsbymacroreticularcarboxylcationexchangerkb2e10 |