REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE
The aim of the present study was to examine the performance of residue from extracted onion processing waste for the ability to remove Cr (VI) ions from aqueous solutions. The characterization of applied biosorbent was conducted by FT-IR analysis. Batch experiments were carried out and the effects o...
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Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2021-12-01
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| Series: | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
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| Online Access: | https://pubs.ub.ro/?pg=revues&rev=cscc6&num=202104&vol=4&aid=5343 |
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| author | TSVETKO V. PROKOPOV MILENA I. NIKOLOVA DONKA S. TANEVA NADEZHDA T. PETKOVA |
| author_facet | TSVETKO V. PROKOPOV MILENA I. NIKOLOVA DONKA S. TANEVA NADEZHDA T. PETKOVA |
| author_sort | TSVETKO V. PROKOPOV |
| collection | DOAJ |
| description | The aim of the present study was to examine the performance of residue from extracted onion processing waste for the ability to remove Cr (VI) ions from aqueous solutions. The characterization of applied biosorbent was conducted by FT-IR analysis. Batch experiments were carried out and the effects of different adsorption process parameters were determined. Maximum removal efficiency of 98.29 ± 0.17 % was obtained at pH = 1.0, adsorbent dose 0.5 g·L-1, initial Cr (VI) concentration 50 mg·L-1, temperature 25.0 ± 0.5 oC, agitation speed 200 rpm and contact time of 30 min. The pseudo-second order model and Langmuir model provided the best fit to experimental kinetics and equilibrium isotherm data, respectively. Based on the values determined for the maximum adsorption capacity (qmax = 47.17 mg·g-1) the extracted onion processing waste could be applied as a low cost biosorbent for removal of Cr (VI) ions from polluted water. |
| format | Article |
| id | doaj-art-cf43390768a947149611520fd1b310f3 |
| institution | DOAJ |
| issn | 1582-540X |
| language | English |
| publishDate | 2021-12-01 |
| publisher | Alma Mater Publishing House "Vasile Alecsandri" University of Bacau |
| record_format | Article |
| series | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
| spelling | doaj-art-cf43390768a947149611520fd1b310f32025-08-20T03:06:40ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry1582-540X2021-12-01224399410REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTETSVETKO V. PROKOPOV 0MILENA I. NIKOLOVA 1DONKA S. TANEVA2NADEZHDA T. PETKOVA3 University of Food Technologies, Department of Environmental Engineering, 26 Maritsa Blvd., 4000 Plovdiv, Bulgaria University of Food Technologies, Department of Environmental Engineering, 26 Maritsa Blvd., 4000 Plovdiv, Bulgaria University of Food Technologies, Department of Environmental Engineering, 26 Maritsa Blvd., 4000 Plovdiv, BulgariaUniversity of Food Technologies, Department of Organic and Inorganic Chemistry, 26 Maritsa Blvd., 4000 Plovdiv, BulgariaThe aim of the present study was to examine the performance of residue from extracted onion processing waste for the ability to remove Cr (VI) ions from aqueous solutions. The characterization of applied biosorbent was conducted by FT-IR analysis. Batch experiments were carried out and the effects of different adsorption process parameters were determined. Maximum removal efficiency of 98.29 ± 0.17 % was obtained at pH = 1.0, adsorbent dose 0.5 g·L-1, initial Cr (VI) concentration 50 mg·L-1, temperature 25.0 ± 0.5 oC, agitation speed 200 rpm and contact time of 30 min. The pseudo-second order model and Langmuir model provided the best fit to experimental kinetics and equilibrium isotherm data, respectively. Based on the values determined for the maximum adsorption capacity (qmax = 47.17 mg·g-1) the extracted onion processing waste could be applied as a low cost biosorbent for removal of Cr (VI) ions from polluted water.https://pubs.ub.ro/?pg=revues&rev=cscc6&num=202104&vol=4&aid=5343chromiumisothermskineticsonionremovalwastewater |
| spellingShingle | TSVETKO V. PROKOPOV MILENA I. NIKOLOVA DONKA S. TANEVA NADEZHDA T. PETKOVA REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry chromium isotherms kinetics onion removal waste water |
| title | REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE |
| title_full | REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE |
| title_fullStr | REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE |
| title_full_unstemmed | REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE |
| title_short | REMOVAL OF CHROMIUM (VI) FROM AQUEOUS SOLUTION BY EXTRACTED ONION PROCESSING WASTE |
| title_sort | removal of chromium vi from aqueous solution by extracted onion processing waste |
| topic | chromium isotherms kinetics onion removal waste water |
| url | https://pubs.ub.ro/?pg=revues&rev=cscc6&num=202104&vol=4&aid=5343 |
| work_keys_str_mv | AT tsvetkovprokopov removalofchromiumvifromaqueoussolutionbyextractedonionprocessingwaste AT milenainikolova removalofchromiumvifromaqueoussolutionbyextractedonionprocessingwaste AT donkastaneva removalofchromiumvifromaqueoussolutionbyextractedonionprocessingwaste AT nadezhdatpetkova removalofchromiumvifromaqueoussolutionbyextractedonionprocessingwaste |