Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation
Perfluorooctanoic acid (PFOA) and microcystins are some of the well-known chemical contaminants in drinking water in the USA. Despite the availability of filtration technologies like ion-exchange resins, activated-carbon, and high-pressure membrane filters, these contaminants still remain widespread...
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Wiley
2020-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2020/1836264 |
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| author | Stephen Opoku-Duah Dennis Johnson |
| author_facet | Stephen Opoku-Duah Dennis Johnson |
| author_sort | Stephen Opoku-Duah |
| collection | DOAJ |
| description | Perfluorooctanoic acid (PFOA) and microcystins are some of the well-known chemical contaminants in drinking water in the USA. Despite the availability of filtration technologies like ion-exchange resins, activated-carbon, and high-pressure membrane filters, these contaminants still remain widespread in the environment. In the present study, two innovative aspects of electrocoagulation techniques were tested, (a) cheap and easy-to-operate field-unit instead of hi-tech electrocoagulation and (b) reverse-polarity instead of conventional polarity, and applied to remove PFOA and microcystins from drinking water sources. The method presented here outperformed commercial activated-carbon filtration by nearly 40%. When the efficiency of electrocoagulation was examined in terms of voltage discharge, pH, and reverse-polarity, the results averaged 80% decontamination for individual treatment, while their combined effects produced 100% detoxification in 10–40 minutes, exceeding recently published results. The method shows great economic promise for water and wastewater treatment and chemical recycling. |
| format | Article |
| id | doaj-art-a90467686b91421fa143d5a42079917e |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-a90467686b91421fa143d5a42079917e2025-02-03T06:45:49ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/18362641836264Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by ElectrocoagulationStephen Opoku-Duah0Dennis Johnson1Department of Chemistry & Biochemistry, Lipscomb University, One University Park Drive, Nashville, TN 37211, USAKATHAROS Scientific International LLC, 3472 Research Parkway, Suite 104-451, Colorado Springs, CO 80920, USAPerfluorooctanoic acid (PFOA) and microcystins are some of the well-known chemical contaminants in drinking water in the USA. Despite the availability of filtration technologies like ion-exchange resins, activated-carbon, and high-pressure membrane filters, these contaminants still remain widespread in the environment. In the present study, two innovative aspects of electrocoagulation techniques were tested, (a) cheap and easy-to-operate field-unit instead of hi-tech electrocoagulation and (b) reverse-polarity instead of conventional polarity, and applied to remove PFOA and microcystins from drinking water sources. The method presented here outperformed commercial activated-carbon filtration by nearly 40%. When the efficiency of electrocoagulation was examined in terms of voltage discharge, pH, and reverse-polarity, the results averaged 80% decontamination for individual treatment, while their combined effects produced 100% detoxification in 10–40 minutes, exceeding recently published results. The method shows great economic promise for water and wastewater treatment and chemical recycling.http://dx.doi.org/10.1155/2020/1836264 |
| spellingShingle | Stephen Opoku-Duah Dennis Johnson Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation Journal of Chemistry |
| title | Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation |
| title_full | Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation |
| title_fullStr | Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation |
| title_full_unstemmed | Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation |
| title_short | Removal of Perfluorooctanoic Acid and Microcystins from Drinking Water by Electrocoagulation |
| title_sort | removal of perfluorooctanoic acid and microcystins from drinking water by electrocoagulation |
| url | http://dx.doi.org/10.1155/2020/1836264 |
| work_keys_str_mv | AT stephenopokuduah removalofperfluorooctanoicacidandmicrocystinsfromdrinkingwaterbyelectrocoagulation AT dennisjohnson removalofperfluorooctanoicacidandmicrocystinsfromdrinkingwaterbyelectrocoagulation |