Advances in bioleaching of waste lithium batteries under metal ion stress
Abstract In modern societies, the accumulation of vast amounts of waste Li-ion batteries (WLIBs) is a grave concern. Bioleaching has great potential for the economic recovery of valuable metals from various electronic wastes. It has been successfully applied in mining on commercial scales. Bioleachi...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-03-01
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| Series: | Bioresources and Bioprocessing |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40643-023-00636-5 |
| _version_ | 1797865689385533440 |
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| author | Xu Zhang Hongjie Shi Ningjie Tan Minglong Zhu Wensong Tan Damilola Daramola Tingyue Gu |
| author_facet | Xu Zhang Hongjie Shi Ningjie Tan Minglong Zhu Wensong Tan Damilola Daramola Tingyue Gu |
| author_sort | Xu Zhang |
| collection | DOAJ |
| description | Abstract In modern societies, the accumulation of vast amounts of waste Li-ion batteries (WLIBs) is a grave concern. Bioleaching has great potential for the economic recovery of valuable metals from various electronic wastes. It has been successfully applied in mining on commercial scales. Bioleaching of WLIBs can not only recover valuable metals but also prevent environmental pollution. Many acidophilic microorganisms (APM) have been used in bioleaching of natural ores and urban mines. However, the activities of the growth and metabolism of APM are seriously inhibited by the high concentrations of heavy metal ions released by the bio-solubilization process, which slows down bioleaching over time. Only when the response mechanism of APM to harsh conditions is well understood, effective strategies to address this critical operational hurdle can be obtained. In this review, a multi-scale approach is used to summarize studies on the characteristics of bioleaching processes under metal ion stress. The response mechanisms of bacteria, including the mRNA expression levels of intracellular genes related to heavy metal ion resistance, are also reviewed. Alleviation of metal ion stress via addition of chemicals, such as spermine and glutathione is discussed. Monitoring using electrochemical characteristics of APM biofilms under metal ion stress is explored. In conclusion, effective engineering strategies can be proposed based on a deep understanding of the response mechanisms of APM to metal ion stress, which have been used to improve bioleaching efficiency effectively in lab tests. It is very important to engineer new bioleaching strains with high resistance to metal ions using gene editing and synthetic biotechnology in the near future. |
| first_indexed | 2024-04-09T23:13:19Z |
| format | Article |
| id | doaj.art-a13e6cce5c07434ab495e80c0b4fe75c |
| institution | Directory Open Access Journal |
| issn | 2197-4365 |
| language | English |
| last_indexed | 2024-04-09T23:13:19Z |
| publishDate | 2023-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Bioresources and Bioprocessing |
| spelling | doaj.art-a13e6cce5c07434ab495e80c0b4fe75c2023-03-22T10:17:52ZengSpringerOpenBioresources and Bioprocessing2197-43652023-03-0110112410.1186/s40643-023-00636-5Advances in bioleaching of waste lithium batteries under metal ion stressXu Zhang0Hongjie Shi1Ningjie Tan2Minglong Zhu3Wensong Tan4Damilola Daramola5Tingyue Gu6State Key Laboratory of Bioreactor Engineering, East China University of Science and TechnologyState Key Laboratory of Bioreactor Engineering, East China University of Science and TechnologyState Key Laboratory of Bioreactor Engineering, East China University of Science and TechnologyState Key Laboratory of Bioreactor Engineering, East China University of Science and TechnologyState Key Laboratory of Bioreactor Engineering, East China University of Science and TechnologyDepartment of Chemical and Biomolecular Engineering, Institute for Sustainable Energy and the Environment, Ohio UniversityDepartment of Chemical and Biomolecular Engineering, Institute for Sustainable Energy and the Environment, Ohio UniversityAbstract In modern societies, the accumulation of vast amounts of waste Li-ion batteries (WLIBs) is a grave concern. Bioleaching has great potential for the economic recovery of valuable metals from various electronic wastes. It has been successfully applied in mining on commercial scales. Bioleaching of WLIBs can not only recover valuable metals but also prevent environmental pollution. Many acidophilic microorganisms (APM) have been used in bioleaching of natural ores and urban mines. However, the activities of the growth and metabolism of APM are seriously inhibited by the high concentrations of heavy metal ions released by the bio-solubilization process, which slows down bioleaching over time. Only when the response mechanism of APM to harsh conditions is well understood, effective strategies to address this critical operational hurdle can be obtained. In this review, a multi-scale approach is used to summarize studies on the characteristics of bioleaching processes under metal ion stress. The response mechanisms of bacteria, including the mRNA expression levels of intracellular genes related to heavy metal ion resistance, are also reviewed. Alleviation of metal ion stress via addition of chemicals, such as spermine and glutathione is discussed. Monitoring using electrochemical characteristics of APM biofilms under metal ion stress is explored. In conclusion, effective engineering strategies can be proposed based on a deep understanding of the response mechanisms of APM to metal ion stress, which have been used to improve bioleaching efficiency effectively in lab tests. It is very important to engineer new bioleaching strains with high resistance to metal ions using gene editing and synthetic biotechnology in the near future.https://doi.org/10.1186/s40643-023-00636-5BioleachingMetal ion stressBiofilmWaste lithium batteryElectrochemistry |
| spellingShingle | Xu Zhang Hongjie Shi Ningjie Tan Minglong Zhu Wensong Tan Damilola Daramola Tingyue Gu Advances in bioleaching of waste lithium batteries under metal ion stress Bioresources and Bioprocessing Bioleaching Metal ion stress Biofilm Waste lithium battery Electrochemistry |
| title | Advances in bioleaching of waste lithium batteries under metal ion stress |
| title_full | Advances in bioleaching of waste lithium batteries under metal ion stress |
| title_fullStr | Advances in bioleaching of waste lithium batteries under metal ion stress |
| title_full_unstemmed | Advances in bioleaching of waste lithium batteries under metal ion stress |
| title_short | Advances in bioleaching of waste lithium batteries under metal ion stress |
| title_sort | advances in bioleaching of waste lithium batteries under metal ion stress |
| topic | Bioleaching Metal ion stress Biofilm Waste lithium battery Electrochemistry |
| url | https://doi.org/10.1186/s40643-023-00636-5 |
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