Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater
Microbial desalination cells (MDCs) provide a sustainable approach to desalinate saltwater powered by bacterial metabolism during organic oxidation. A systematic study was conducted to clarify the ion-dominated interactions for preventing unpredictable risks for long-term MDC operations in the treat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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The Electrochemical Society of Japan
2023-05-01
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| Series: | Electrochemistry |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/91/5/91_23-00018/_html/-char/en |
| _version_ | 1797816184948654080 |
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| author | Hongyi LI Siqi TONG Hongfa WANG Yi WANG |
| author_facet | Hongyi LI Siqi TONG Hongfa WANG Yi WANG |
| author_sort | Hongyi LI |
| collection | DOAJ |
| description | Microbial desalination cells (MDCs) provide a sustainable approach to desalinate saltwater powered by bacterial metabolism during organic oxidation. A systematic study was conducted to clarify the ion-dominated interactions for preventing unpredictable risks for long-term MDC operations in the treatment of complex ion-containing wastewaters. The investigation showed that the migration and unequal scaling of cations at different ion exchange membrane (IEM) surfaces greatly influenced their transmembrane processes, which were directly affected by the hydrolysis and precipitation behavior controlled by the solubility product and ambient solution, resulting in the following removal efficiency of MDCs: Na+ > Ca2+ > Cu2+ > Al3+ > Fe3+. A further study showed that the precipitation antagonism and pH buffer effect of multiple cations could positively promote the desalination of sparingly soluble cations. Eventually, the desalination efficiency of MDC in the treatment of actual industrial tailwater was maintained at 63.2–74.1 %. These findings not only elucidated the kinetics of ion migration in detail but also offered new application possibilities for MDCs. |
| first_indexed | 2024-03-13T08:34:00Z |
| format | Article |
| id | doaj.art-797ce40612a346d48e0a1b5a7b6e1bfb |
| institution | Directory Open Access Journal |
| issn | 2186-2451 |
| language | English |
| last_indexed | 2024-03-13T08:34:00Z |
| publishDate | 2023-05-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj.art-797ce40612a346d48e0a1b5a7b6e1bfb2023-05-31T01:16:20ZengThe Electrochemical Society of JapanElectrochemistry2186-24512023-05-0191505700705700710.5796/electrochemistry.23-00018electrochemistrySystematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial WastewaterHongyi LI0Siqi TONG1Hongfa WANG2Yi WANG3Department of Environmental Engineering, Nanjing Institute of TechnologyJiangsu Provincial Academy of Environmental ScienceShendu Design Group Co., Ltd., Jiangsu BranchSchool of Environmental and Biological Engineering, Nanjing University of Science and TechnologyMicrobial desalination cells (MDCs) provide a sustainable approach to desalinate saltwater powered by bacterial metabolism during organic oxidation. A systematic study was conducted to clarify the ion-dominated interactions for preventing unpredictable risks for long-term MDC operations in the treatment of complex ion-containing wastewaters. The investigation showed that the migration and unequal scaling of cations at different ion exchange membrane (IEM) surfaces greatly influenced their transmembrane processes, which were directly affected by the hydrolysis and precipitation behavior controlled by the solubility product and ambient solution, resulting in the following removal efficiency of MDCs: Na+ > Ca2+ > Cu2+ > Al3+ > Fe3+. A further study showed that the precipitation antagonism and pH buffer effect of multiple cations could positively promote the desalination of sparingly soluble cations. Eventually, the desalination efficiency of MDC in the treatment of actual industrial tailwater was maintained at 63.2–74.1 %. These findings not only elucidated the kinetics of ion migration in detail but also offered new application possibilities for MDCs.https://www.jstage.jst.go.jp/article/electrochemistry/91/5/91_23-00018/_html/-char/enmicrobial desalinationcationic transportmigration kineticsmembrane scaling |
| spellingShingle | Hongyi LI Siqi TONG Hongfa WANG Yi WANG Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater Electrochemistry microbial desalination cationic transport migration kinetics membrane scaling |
| title | Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater |
| title_full | Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater |
| title_fullStr | Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater |
| title_full_unstemmed | Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater |
| title_short | Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater |
| title_sort | systematic investigation of microbial desalination cells mdc performance under the impact of cation migration behavior and multi cation interactions in industrial wastewater |
| topic | microbial desalination cationic transport migration kinetics membrane scaling |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/91/5/91_23-00018/_html/-char/en |
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