Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger
Leaching of metals from waste button cell batteries was explored in this study. Aspergillus niger spent medium was used for metal leaching to avoid toxicity of metals toward microbial cells. Process parameters including time, temperature, shaking speed, and volume of the spent medium were optimized....
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Batteries |
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| Online Access: | http://www.mdpi.com/2313-0105/4/4/51 |
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| author | Umesh Jadhav Chun-Hui Su Mital Chakankar Hong Hocheng |
| author_facet | Umesh Jadhav Chun-Hui Su Mital Chakankar Hong Hocheng |
| author_sort | Umesh Jadhav |
| collection | DOAJ |
| description | Leaching of metals from waste button cell batteries was explored in this study. Aspergillus niger spent medium was used for metal leaching to avoid toxicity of metals toward microbial cells. Process parameters including time, temperature, shaking speed, and volume of the spent medium were optimized. We obtained 100% leaching of zinc and silver in six hours at 60 °C and 100 rpm using 15 mL spent medium. The use of spent medium supported the indirect leaching process. The organic acid produced by fungi acts as a lixiviant, aiding the metal leaching in this process. |
| first_indexed | 2024-12-19T12:47:00Z |
| format | Article |
| id | doaj.art-066ae57b2ab14f0c9bfab9527cf66798 |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-12-19T12:47:00Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-066ae57b2ab14f0c9bfab9527cf667982022-12-21T20:20:44ZengMDPI AGBatteries2313-01052018-10-01445110.3390/batteries4040051batteries4040051Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus nigerUmesh Jadhav0Chun-Hui Su1Mital Chakankar2Hong Hocheng3Department of Microbiology, Savitribai Phule Pune University, Pune 411007, IndiaDepartment of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang Fu Rd., Hsinchu 30013, TaiwanDepartment of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang Fu Rd., Hsinchu 30013, TaiwanDepartment of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang Fu Rd., Hsinchu 30013, TaiwanLeaching of metals from waste button cell batteries was explored in this study. Aspergillus niger spent medium was used for metal leaching to avoid toxicity of metals toward microbial cells. Process parameters including time, temperature, shaking speed, and volume of the spent medium were optimized. We obtained 100% leaching of zinc and silver in six hours at 60 °C and 100 rpm using 15 mL spent medium. The use of spent medium supported the indirect leaching process. The organic acid produced by fungi acts as a lixiviant, aiding the metal leaching in this process.http://www.mdpi.com/2313-0105/4/4/51button cell batteriessilverZincAspergillus nigerculture supernatanttwo-step bioleaching |
| spellingShingle | Umesh Jadhav Chun-Hui Su Mital Chakankar Hong Hocheng Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger Batteries button cell batteries silver Zinc Aspergillus niger culture supernatant two-step bioleaching |
| title | Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger |
| title_full | Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger |
| title_fullStr | Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger |
| title_full_unstemmed | Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger |
| title_short | Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger |
| title_sort | leaching of metals from waste silver oxide zinc button cell batteries by aspergillus niger |
| topic | button cell batteries silver Zinc Aspergillus niger culture supernatant two-step bioleaching |
| url | http://www.mdpi.com/2313-0105/4/4/51 |
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