Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review
The present study was carried out in the two phases of systematic review and experimental research. First, for the systematic review phase, Web of Science, Scopus, and PubMed as electronic databases were utilized to find research articles distributed up to March 5, 2021, related to the removal of mi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023028712 |
| _version_ | 1797815625404383232 |
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| author | Nahid Azizi Meghdad Pirsaheb Neamat Jaafarzadeh Ramin Nabizadeh Nodehi |
| author_facet | Nahid Azizi Meghdad Pirsaheb Neamat Jaafarzadeh Ramin Nabizadeh Nodehi |
| author_sort | Nahid Azizi |
| collection | DOAJ |
| description | The present study was carried out in the two phases of systematic review and experimental research. First, for the systematic review phase, Web of Science, Scopus, and PubMed as electronic databases were utilized to find research articles distributed up to March 5, 2021, related to the removal of microplastics by coagulation. In total, 104 publications were found, of which 14 were reviewed for deriving the variables and research design. Then, in the experimental phase, the experiment was carried out based on the variables derived from the systematic phase for three microplastic types (polyethylene, polystyrene, and polyamide) and five coagulants (polyaluminum chloride (PAC), ferric chloride (FeCl3), aluminum chloride (AlCl3), alum (Al(OH)3) and aluminum sulfate (Al2(SO4)3)) in bench scale study. The differences between removal efficiencies in terms of type, shape, concentration, and size of microplastics within the looked into article was analyzed utilizing ANOVA or Kruskal-Wallis test (for parametric or nonparametric analysis, respectively). The results of experimental phase show that the removal efficiency of different microplastics was significantly different, and it was equal to 65, 22, and 12% on average for PA, PS, and PE, respectively. These averages are much lower than the average removal efficiency calculated in the reviewed articles (78 and 52% for PS and PE, respectively). The removal efficiency of microplastics types by coagulants was not significantly different. As a result, a coagulant that has the lowest dose can be selected as the most suitable coagulant, which is Al(OH)3 in this study. |
| first_indexed | 2024-03-13T08:25:37Z |
| format | Article |
| id | doaj.art-3ca8cd7129ba4f529764238784a757b6 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-13T08:25:37Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-3ca8cd7129ba4f529764238784a757b62023-05-31T04:45:05ZengElsevierHeliyon2405-84402023-05-0195e15664Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic reviewNahid Azizi0Meghdad Pirsaheb1Neamat Jaafarzadeh2Ramin Nabizadeh Nodehi3Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Environmental Health Engineering, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran; Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, IranEnvironmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IranDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Corresponding author.The present study was carried out in the two phases of systematic review and experimental research. First, for the systematic review phase, Web of Science, Scopus, and PubMed as electronic databases were utilized to find research articles distributed up to March 5, 2021, related to the removal of microplastics by coagulation. In total, 104 publications were found, of which 14 were reviewed for deriving the variables and research design. Then, in the experimental phase, the experiment was carried out based on the variables derived from the systematic phase for three microplastic types (polyethylene, polystyrene, and polyamide) and five coagulants (polyaluminum chloride (PAC), ferric chloride (FeCl3), aluminum chloride (AlCl3), alum (Al(OH)3) and aluminum sulfate (Al2(SO4)3)) in bench scale study. The differences between removal efficiencies in terms of type, shape, concentration, and size of microplastics within the looked into article was analyzed utilizing ANOVA or Kruskal-Wallis test (for parametric or nonparametric analysis, respectively). The results of experimental phase show that the removal efficiency of different microplastics was significantly different, and it was equal to 65, 22, and 12% on average for PA, PS, and PE, respectively. These averages are much lower than the average removal efficiency calculated in the reviewed articles (78 and 52% for PS and PE, respectively). The removal efficiency of microplastics types by coagulants was not significantly different. As a result, a coagulant that has the lowest dose can be selected as the most suitable coagulant, which is Al(OH)3 in this study.http://www.sciencedirect.com/science/article/pii/S2405844023028712CoagulationMicroplasticSystematic reviewPolyethylenePolystyrenePolyamide |
| spellingShingle | Nahid Azizi Meghdad Pirsaheb Neamat Jaafarzadeh Ramin Nabizadeh Nodehi Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review Heliyon Coagulation Microplastic Systematic review Polyethylene Polystyrene Polyamide |
| title | Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review |
| title_full | Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review |
| title_fullStr | Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review |
| title_full_unstemmed | Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review |
| title_short | Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review |
| title_sort | microplastics removal from aquatic environment by coagulation selecting the best coagulant based on variables determined from a systematic review |
| topic | Coagulation Microplastic Systematic review Polyethylene Polystyrene Polyamide |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023028712 |
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