Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions
Abstract Heavy metal such as Pb2+ (lead ions) has high toxicity potential, and it can be dangerous for public health and environment. The ion exchange process is one of the methods that can be used for Pb2+ removal from aqueous solutions. The aim of this study was to investigate the removal efficien...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-01-01
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| Series: | Applied Water Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13201-019-1135-1 |
| _version_ | 1830283604098285568 |
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| author | Malihe Moazeni Saeed Parastar Mokhtar Mahdavi Afshin Ebrahimi |
| author_facet | Malihe Moazeni Saeed Parastar Mokhtar Mahdavi Afshin Ebrahimi |
| author_sort | Malihe Moazeni |
| collection | DOAJ |
| description | Abstract Heavy metal such as Pb2+ (lead ions) has high toxicity potential, and it can be dangerous for public health and environment. The ion exchange process is one of the methods that can be used for Pb2+ removal from aqueous solutions. The aim of this study was to investigate the removal efficiency of Pb2+ from the synthetic aqueous solutions using Iranian natural zeolite (INZ) (Clinoptilolite) in comparison with a synthetic resin (SR). In this study, the removal of Pb2+ from aqueous solution investigated by INZ and synthetic resin under different experimental conditions. Parameters like initial Pb2+ concentration, contact times, adsorbent dosage, pH and size particles of INZ, and best-fitted isotherm were studied. The results showed that the most removal efficiency of Pb2+ with INZ was obtained at pH 3–5, contact time 15–60 min, adsorbent dosage 20–50 g/L, Pb2+ initial concentration 25 mg/L, and the removal efficiency was increased with decreasing INZ particle size. The high removal of Pb2+ with SR was at pH 4–6, for 25 mg/L initial Pb2+ concentration at 15–60 min and 5–10 g/L SR. Isotherms study with ISOFT software indicates that the Freundlich and Langmuir isotherms expression provides the best fit for Pb2+ sorption by INZ and SR, respectively. This study indicated that for Pb2+ ion removal, the SR was more efficient than INZ for high concentration solutions; however, in low concentration of Pb2+, the removal efficiency was approximately equal. |
| first_indexed | 2024-12-19T03:00:07Z |
| format | Article |
| id | doaj.art-58ece665735a4483ada1f3091798dda2 |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-12-19T03:00:07Z |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-58ece665735a4483ada1f3091798dda22022-12-21T20:38:13ZengSpringerOpenApplied Water Science2190-54872190-54952020-01-011021910.1007/s13201-019-1135-1Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutionsMalihe Moazeni0Saeed Parastar1Mokhtar Mahdavi2Afshin Ebrahimi3Student Research Committee, School of Health, Isfahan University of Medical SciencesDepartment of Environmental Health Engineering, School of Health, Ardabil University of Medical SciencesDepartment of Environmental Health Engineering, Social Determinants of Health Research Center, Saveh University of Medical SciencesDepartment of Environmental Health Engineering, School of Health, Isfahan University of Medical SciencesAbstract Heavy metal such as Pb2+ (lead ions) has high toxicity potential, and it can be dangerous for public health and environment. The ion exchange process is one of the methods that can be used for Pb2+ removal from aqueous solutions. The aim of this study was to investigate the removal efficiency of Pb2+ from the synthetic aqueous solutions using Iranian natural zeolite (INZ) (Clinoptilolite) in comparison with a synthetic resin (SR). In this study, the removal of Pb2+ from aqueous solution investigated by INZ and synthetic resin under different experimental conditions. Parameters like initial Pb2+ concentration, contact times, adsorbent dosage, pH and size particles of INZ, and best-fitted isotherm were studied. The results showed that the most removal efficiency of Pb2+ with INZ was obtained at pH 3–5, contact time 15–60 min, adsorbent dosage 20–50 g/L, Pb2+ initial concentration 25 mg/L, and the removal efficiency was increased with decreasing INZ particle size. The high removal of Pb2+ with SR was at pH 4–6, for 25 mg/L initial Pb2+ concentration at 15–60 min and 5–10 g/L SR. Isotherms study with ISOFT software indicates that the Freundlich and Langmuir isotherms expression provides the best fit for Pb2+ sorption by INZ and SR, respectively. This study indicated that for Pb2+ ion removal, the SR was more efficient than INZ for high concentration solutions; however, in low concentration of Pb2+, the removal efficiency was approximately equal.https://doi.org/10.1007/s13201-019-1135-1Lead ionsAqueous solutionsSynthetic resinIranian natural zeolites (INZ)Adsorption isotherm |
| spellingShingle | Malihe Moazeni Saeed Parastar Mokhtar Mahdavi Afshin Ebrahimi Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions Applied Water Science Lead ions Aqueous solutions Synthetic resin Iranian natural zeolites (INZ) Adsorption isotherm |
| title | Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions |
| title_full | Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions |
| title_fullStr | Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions |
| title_full_unstemmed | Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions |
| title_short | Evaluation efficiency of Iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions |
| title_sort | evaluation efficiency of iranian natural zeolites and synthetic resin to removal of lead ions from aqueous solutions |
| topic | Lead ions Aqueous solutions Synthetic resin Iranian natural zeolites (INZ) Adsorption isotherm |
| url | https://doi.org/10.1007/s13201-019-1135-1 |
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