Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation
A self-powered electrocoagulation system with a single-chamber aluminum–air fuel cell was employed for phosphate removal in this study. Electricity production and aluminum hydroxides in solution were also investigated. When the NaCl concentration increased from 2 mmol/L to 10 mmol/L, the phosphate r...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-04-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/7/4628 |
| _version_ | 1797608283790376960 |
|---|---|
| author | Xiaoyu Han Hanlin Qi Youpeng Qu Yujie Feng Xin Zhao |
| author_facet | Xiaoyu Han Hanlin Qi Youpeng Qu Yujie Feng Xin Zhao |
| author_sort | Xiaoyu Han |
| collection | DOAJ |
| description | A self-powered electrocoagulation system with a single-chamber aluminum–air fuel cell was employed for phosphate removal in this study. Electricity production and aluminum hydroxides in solution were also investigated. When the NaCl concentration increased from 2 mmol/L to 10 mmol/L, the phosphate removal increased from 86.9% to 97.8% in 60 min. An electrolyte composed of 10 mmol/L of NaCl was shown to obtain a maximum power density generation of 265.7 mW/m<sup>2</sup>. When the initial solution pH ranged from 5.0 to 9.0, 98.5% phosphate removal and a maximum power density of 338.1 mW/m<sup>2</sup> were obtained at pH 6.0. Phosphate was mainly removed by aluminum hydroxide adsorption. These results demonstrate that the aluminum–air fuel cell can be applied as electricity-producing electrocoagulation equipment. Aluminum–air fuel cells provide an alternative method to meet the goal of carbon neutrality in wastewater treatment compared with traditional energy-consuming electrocoagulation systems. |
| first_indexed | 2024-03-11T05:42:17Z |
| format | Article |
| id | doaj.art-d5f2c33be0c34ccbacb9ca5558a8a88c |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T05:42:17Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-d5f2c33be0c34ccbacb9ca5558a8a88c2023-11-17T16:23:19ZengMDPI AGApplied Sciences2076-34172023-04-01137462810.3390/app13074628Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient ElectrocoagulationXiaoyu Han0Hanlin Qi1Youpeng Qu2Yujie Feng3Xin Zhao4Department of Environmental Engineering, School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaDepartment of Environmental Engineering, School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, ChinaState Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, ChinaDepartment of Environmental Engineering, School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaA self-powered electrocoagulation system with a single-chamber aluminum–air fuel cell was employed for phosphate removal in this study. Electricity production and aluminum hydroxides in solution were also investigated. When the NaCl concentration increased from 2 mmol/L to 10 mmol/L, the phosphate removal increased from 86.9% to 97.8% in 60 min. An electrolyte composed of 10 mmol/L of NaCl was shown to obtain a maximum power density generation of 265.7 mW/m<sup>2</sup>. When the initial solution pH ranged from 5.0 to 9.0, 98.5% phosphate removal and a maximum power density of 338.1 mW/m<sup>2</sup> were obtained at pH 6.0. Phosphate was mainly removed by aluminum hydroxide adsorption. These results demonstrate that the aluminum–air fuel cell can be applied as electricity-producing electrocoagulation equipment. Aluminum–air fuel cells provide an alternative method to meet the goal of carbon neutrality in wastewater treatment compared with traditional energy-consuming electrocoagulation systems.https://www.mdpi.com/2076-3417/13/7/4628aluminum–air fuel cellelectrocoagulationphosphate removalelectricity production |
| spellingShingle | Xiaoyu Han Hanlin Qi Youpeng Qu Yujie Feng Xin Zhao Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation Applied Sciences aluminum–air fuel cell electrocoagulation phosphate removal electricity production |
| title | Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation |
| title_full | Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation |
| title_fullStr | Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation |
| title_full_unstemmed | Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation |
| title_short | Simultaneous Phosphate Removal and Power Generation by the Aluminum–Air Fuel Cell for Energy Self-Sufficient Electrocoagulation |
| title_sort | simultaneous phosphate removal and power generation by the aluminum air fuel cell for energy self sufficient electrocoagulation |
| topic | aluminum–air fuel cell electrocoagulation phosphate removal electricity production |
| url | https://www.mdpi.com/2076-3417/13/7/4628 |
| work_keys_str_mv | AT xiaoyuhan simultaneousphosphateremovalandpowergenerationbythealuminumairfuelcellforenergyselfsufficientelectrocoagulation AT hanlinqi simultaneousphosphateremovalandpowergenerationbythealuminumairfuelcellforenergyselfsufficientelectrocoagulation AT youpengqu simultaneousphosphateremovalandpowergenerationbythealuminumairfuelcellforenergyselfsufficientelectrocoagulation AT yujiefeng simultaneousphosphateremovalandpowergenerationbythealuminumairfuelcellforenergyselfsufficientelectrocoagulation AT xinzhao simultaneousphosphateremovalandpowergenerationbythealuminumairfuelcellforenergyselfsufficientelectrocoagulation |