Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA)
Background: Heavy metal pollution has become one of the most severe environmental problems, therefore, the present study was conducted to investigate removal of cadmium (Cd) from aqueous solution. Methods: In the present study, nano Prosopis cineraria leaf ash (NPCLA) was used as an adsorbent fo...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Kerman University of Medical Sciences
2023-04-01
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| Series: | Environmental Health Engineering and Management |
| Subjects: | |
| Online Access: | http://ehemj.com/browse.php?a_id=1092&sid=1&slc_lang=en&ftxt=1 |
| _version_ | 1797798484833730560 |
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| author | Milad Pourjaafar Ali Askari Ali Salehi Sahl Abadi Bagher Anvaripour Afshar Nemati Seyed Ali Rahimi Mona Pourjafar |
| author_facet | Milad Pourjaafar Ali Askari Ali Salehi Sahl Abadi Bagher Anvaripour Afshar Nemati Seyed Ali Rahimi Mona Pourjafar |
| author_sort | Milad Pourjaafar |
| collection | DOAJ |
| description | Background: Heavy metal pollution has become one of the most severe environmental problems,
therefore, the present study was conducted to investigate removal of cadmium (Cd) from aqueous
solution.
Methods: In the present study, nano Prosopis cineraria leaf ash (NPCLA) was used as an adsorbent
for removing Cd from aqueous solution. Contact time, initial pH of the solutions, sorbent dosages,
and initial Cd (II) concentration were considered as parameters affecting Cd removal efficiency. The
experiments were designed by Design of Expert (DOE) software.
Results: It was revealed that an NPCLA dosage of 2.45 gL-1, pH of 6.3, and initial Cd (II) concentration
of 20.7 mgL-1 in contact time of 60 min was the optimum condition for removal of Cd (II) in the domain
of experiments and at this optimum condition, the prediction value of removal efficiency was found
99.9%. Based on the results of kinetics experiments, the sorption system and experiment data of Cd
(II) adsorption on the NPCLA followed the pseudo-second-order kinetic model. Freundlich, Langmuir,
Brunauer-Emmett-Teller (BET), and Temkin isotherm models were investigated. The equilibrium
adsorption data were fitted well with linearly transformed Langmuir isotherm with a correlation
coefficient of R2 = 0.9877, and the maximum sorption capacity of NPCLA was obtained to be 25.25 mgg-1.
Conclusion: In laboratory conditions, NPCLA can remove Cd from aqueous solution with a high
efficiency. Therefore, due to this plant’s availability and cheapness, NPCLA can be considered a suitable
option for producing adsorbents on industrial scales. |
| first_indexed | 2024-03-13T04:05:27Z |
| format | Article |
| id | doaj.art-98ab47b29a2f4ef78a3884590f1fbb1b |
| institution | Directory Open Access Journal |
| issn | 2423-3765 2423-4311 |
| language | English |
| last_indexed | 2024-03-13T04:05:27Z |
| publishDate | 2023-04-01 |
| publisher | Kerman University of Medical Sciences |
| record_format | Article |
| series | Environmental Health Engineering and Management |
| spelling | doaj.art-98ab47b29a2f4ef78a3884590f1fbb1b2023-06-21T08:16:44ZengKerman University of Medical SciencesEnvironmental Health Engineering and Management2423-37652423-43112023-04-0110222523310.34172/EHEM.2023.25Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA)Milad Pourjaafar0Ali Askari1Ali Salehi Sahl Abadi2Bagher Anvaripour3Afshar Nemati4Seyed Ali Rahimi5Mona Pourjafar6Department of Chemical Engineering- HSE, Abadan Institute of Technology, Abadan, Iran, HSE Manager Department, North Azadegan Oilfield Project, Khuzestan, IranDepartment of Occupational Health, School of Public Health, Tehran University of Medical Sciences, OICO HSE Department, Azar Oilfield Project, Ilam, IranDepartment of Occupational Health and Safety Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, IranDepartment of Chemical Engineering- HSE, Abadan Institute of Technology, Abadan, Iran, HSE Manager Department, North Azadegan Oilfield Project, Khuzestan, IranOICO Azar Oilfield Development Site Manager, Azar Oilfield Project, Ilam, IranDepartment of Chemical Engineering- HSE, Abadan Institute of Technology, Abadan, Iran, HSE Manager Department, North Azadegan Oilfield Project, Khuzestan, IranDepartment of Chemical Engineering- HSE, Abadan Institute of Technology, Abadan, Iran, HSE Manager Department, North Azadegan Oilfield Project, Khuzestan, IranBackground: Heavy metal pollution has become one of the most severe environmental problems, therefore, the present study was conducted to investigate removal of cadmium (Cd) from aqueous solution. Methods: In the present study, nano Prosopis cineraria leaf ash (NPCLA) was used as an adsorbent for removing Cd from aqueous solution. Contact time, initial pH of the solutions, sorbent dosages, and initial Cd (II) concentration were considered as parameters affecting Cd removal efficiency. The experiments were designed by Design of Expert (DOE) software. Results: It was revealed that an NPCLA dosage of 2.45 gL-1, pH of 6.3, and initial Cd (II) concentration of 20.7 mgL-1 in contact time of 60 min was the optimum condition for removal of Cd (II) in the domain of experiments and at this optimum condition, the prediction value of removal efficiency was found 99.9%. Based on the results of kinetics experiments, the sorption system and experiment data of Cd (II) adsorption on the NPCLA followed the pseudo-second-order kinetic model. Freundlich, Langmuir, Brunauer-Emmett-Teller (BET), and Temkin isotherm models were investigated. The equilibrium adsorption data were fitted well with linearly transformed Langmuir isotherm with a correlation coefficient of R2 = 0.9877, and the maximum sorption capacity of NPCLA was obtained to be 25.25 mgg-1. Conclusion: In laboratory conditions, NPCLA can remove Cd from aqueous solution with a high efficiency. Therefore, due to this plant’s availability and cheapness, NPCLA can be considered a suitable option for producing adsorbents on industrial scales.http://ehemj.com/browse.php?a_id=1092&sid=1&slc_lang=en&ftxt=1cadmiumhydrogen-ion concentrationnanostructureplant leaveskinetics |
| spellingShingle | Milad Pourjaafar Ali Askari Ali Salehi Sahl Abadi Bagher Anvaripour Afshar Nemati Seyed Ali Rahimi Mona Pourjafar Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA) Environmental Health Engineering and Management cadmium hydrogen-ion concentration nanostructure plant leaves kinetics |
| title | Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA) |
| title_full | Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA) |
| title_fullStr | Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA) |
| title_full_unstemmed | Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA) |
| title_short | Removal of cadmium from aqueous solution using nano Prosopis cineraria leaf ash (NPCLA) |
| title_sort | removal of cadmium from aqueous solution using nano prosopis cineraria leaf ash npcla |
| topic | cadmium hydrogen-ion concentration nanostructure plant leaves kinetics |
| url | http://ehemj.com/browse.php?a_id=1092&sid=1&slc_lang=en&ftxt=1 |
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