Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization
This study is focused on reducing total chromium level in tannery wastewater through the electrocoagulation process, in order to comply with the maximum permissible limits (MPL) and to determine the effects from its main operating factors. For this purpose, a batch electrocoagulation reactor was man...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024006789 |
| _version_ | 1797304547903799296 |
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| author | Edwar Aguilar-Ascón Liliana Marrufo-Saldaña Walter Neyra-Ascón |
| author_facet | Edwar Aguilar-Ascón Liliana Marrufo-Saldaña Walter Neyra-Ascón |
| author_sort | Edwar Aguilar-Ascón |
| collection | DOAJ |
| description | This study is focused on reducing total chromium level in tannery wastewater through the electrocoagulation process, in order to comply with the maximum permissible limits (MPL) and to determine the effects from its main operating factors. For this purpose, a batch electrocoagulation reactor was manufactured using iron electrodes. Next, the response surface methodology was applied in the experimental design using a Box–Behnken design (BBD) with three factors: current intensity, treatment time, and pH level. In addition, the total chromium removal percentage was taken as a response variable. The corresponding statistical analysis revealed that the treatment time, current intensity, and pH level variables were significant at a confidence level of P−value<0.05. Obtained in this study for a 99% total chromium removal were: current intensity (I)=2.9A, time (t)=18.1min, and pH=5.6. Our results indicated that the electrocoagulation process effectively removes total chromium from tannery effluents up to MPL values. |
| first_indexed | 2024-03-08T00:12:02Z |
| format | Article |
| id | doaj.art-50f83530712b4083a472a0a78b449005 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-08T00:12:02Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-50f83530712b4083a472a0a78b4490052024-02-17T06:38:23ZengElsevierHeliyon2405-84402024-02-01103e24647Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimizationEdwar Aguilar-Ascón0Liliana Marrufo-Saldaña1Walter Neyra-Ascón2Universidad de Lima, Instituto de Investigación Científica, Grupo de Investigación en Tecnologías Exponenciales, Estudios Generales, Av. Javier Prado 4600, Surco, Lima, Perú; Corresponding author.Centro de Innovación Productiva y Transferencia Tecnológica del Cuero, Calzado e Industrias Conexas Producción, (CITEccal Lima) - ITP, Av. Caquetá 1300, Rímac, Lima, PerúUniversidad de Lima, Instituto de Investigación Científica, Av. Javier Prado 4600, Surco, Lima, PerúThis study is focused on reducing total chromium level in tannery wastewater through the electrocoagulation process, in order to comply with the maximum permissible limits (MPL) and to determine the effects from its main operating factors. For this purpose, a batch electrocoagulation reactor was manufactured using iron electrodes. Next, the response surface methodology was applied in the experimental design using a Box–Behnken design (BBD) with three factors: current intensity, treatment time, and pH level. In addition, the total chromium removal percentage was taken as a response variable. The corresponding statistical analysis revealed that the treatment time, current intensity, and pH level variables were significant at a confidence level of P−value<0.05. Obtained in this study for a 99% total chromium removal were: current intensity (I)=2.9A, time (t)=18.1min, and pH=5.6. Our results indicated that the electrocoagulation process effectively removes total chromium from tannery effluents up to MPL values.http://www.sciencedirect.com/science/article/pii/S2405844024006789Water pollutionCoagulationFlocculationHydrogen gasMaximum permissible limits |
| spellingShingle | Edwar Aguilar-Ascón Liliana Marrufo-Saldaña Walter Neyra-Ascón Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization Heliyon Water pollution Coagulation Flocculation Hydrogen gas Maximum permissible limits |
| title | Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization |
| title_full | Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization |
| title_fullStr | Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization |
| title_full_unstemmed | Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization |
| title_short | Enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes: Leveraging the Box-Behnken design for optimization |
| title_sort | enhanced chromium removal from tannery wastewater through electrocoagulation with iron electrodes leveraging the box behnken design for optimization |
| topic | Water pollution Coagulation Flocculation Hydrogen gas Maximum permissible limits |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024006789 |
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