Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM)
An effective recovery technology will be valuable in the future because the concentration of the precious metal contained in the source can be a key driver in recycling technology. This study aims to use response surface methodology (RSM) through Minitab software to discover the optimum oxygen level...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://dx.doi.org/10.1155/2023/4011670 |
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| author | Wan Nur Fazlina Abdol Jani Fatihah Suja’ Sharifah Iziuna Sayed Jamaludin Nor Fadilah Mohamad Noor Hidayu Abdul Rani |
| author_facet | Wan Nur Fazlina Abdol Jani Fatihah Suja’ Sharifah Iziuna Sayed Jamaludin Nor Fadilah Mohamad Noor Hidayu Abdul Rani |
| author_sort | Wan Nur Fazlina Abdol Jani |
| collection | DOAJ |
| description | An effective recovery technology will be valuable in the future because the concentration of the precious metal contained in the source can be a key driver in recycling technology. This study aims to use response surface methodology (RSM) through Minitab software to discover the optimum oxygen level (mgL−1), e-waste pulp density (% w/v), and glycine concentration (mgL−1) for the maximum recovery of gold (Au) and silver (Ag). The method of precious metals recovery used for this study was taken from the bioleaching using 2 L of batch stirred tank reactor (BSTR). A Box-Behnken of RSM experimental statistical designs was used to optimize the experimental procedure. The result of the RSM optimization showed that the highest recovery was achieved at an oxygen concentration of 0.56 mgL−1, a pulp density of 1.95%, and a glycine concentration of 2.49 mgL−1, which resulted in the recovery of 62.40% of Au. The pulp density and glycine concentration greatly impact how much Au is bioleached by C. violaceum. As a result, not all of the variables analyzed seem crucial for getting the best precious metals recovery, and some adjustments may be useful in the future. |
| format | Article |
| id | doaj-art-ac2f0c2940b542e2af2edd40eefcb798 |
| institution | OA Journals |
| issn | 1687-479X |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Bioinorganic Chemistry and Applications |
| spelling | doaj-art-ac2f0c2940b542e2af2edd40eefcb7982025-08-20T02:20:22ZengWileyBioinorganic Chemistry and Applications1687-479X2023-01-01202310.1155/2023/4011670Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM)Wan Nur Fazlina Abdol Jani0Fatihah Suja’1Sharifah Iziuna Sayed Jamaludin2Nor Fadilah Mohamad3Noor Hidayu Abdul Rani4School of Chemical EngineeringDepartment of Civil & Structural EngineeringSchool of Chemical EngineeringSchool of Chemical EngineeringSchool of Chemical EngineeringAn effective recovery technology will be valuable in the future because the concentration of the precious metal contained in the source can be a key driver in recycling technology. This study aims to use response surface methodology (RSM) through Minitab software to discover the optimum oxygen level (mgL−1), e-waste pulp density (% w/v), and glycine concentration (mgL−1) for the maximum recovery of gold (Au) and silver (Ag). The method of precious metals recovery used for this study was taken from the bioleaching using 2 L of batch stirred tank reactor (BSTR). A Box-Behnken of RSM experimental statistical designs was used to optimize the experimental procedure. The result of the RSM optimization showed that the highest recovery was achieved at an oxygen concentration of 0.56 mgL−1, a pulp density of 1.95%, and a glycine concentration of 2.49 mgL−1, which resulted in the recovery of 62.40% of Au. The pulp density and glycine concentration greatly impact how much Au is bioleached by C. violaceum. As a result, not all of the variables analyzed seem crucial for getting the best precious metals recovery, and some adjustments may be useful in the future.http://dx.doi.org/10.1155/2023/4011670 |
| spellingShingle | Wan Nur Fazlina Abdol Jani Fatihah Suja’ Sharifah Iziuna Sayed Jamaludin Nor Fadilah Mohamad Noor Hidayu Abdul Rani Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM) Bioinorganic Chemistry and Applications |
| title | Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM) |
| title_full | Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM) |
| title_fullStr | Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM) |
| title_full_unstemmed | Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM) |
| title_short | Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM) |
| title_sort | optimization of precious metals recovery from electronic waste by chromobacterium violaceum using response surface methodology rsm |
| url | http://dx.doi.org/10.1155/2023/4011670 |
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