Wan Nur Fazlina Abdol Jani, Fatihah Suja', Sharifah Iziuna Sayed Jamaludin, Nor Fadilah Mohamad, Noor Hidayu Abdul Rani
{"title":"响应面法优化紫色色杆菌从电子废弃物中回收贵金属的工艺。","authors":"Wan Nur Fazlina Abdol Jani, Fatihah Suja', Sharifah Iziuna Sayed Jamaludin, Nor Fadilah Mohamad, Noor Hidayu Abdul Rani","doi":"10.1155/2023/4011670","DOIUrl":null,"url":null,"abstract":"<p><p>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<sup>-1</sup>), e-waste pulp density (% w/v), and glycine concentration (mgL<sup>-1</sup>) 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<sup>-1</sup>, a pulp density of 1.95%, and a glycine concentration of 2.49 mgL<sup>-1</sup>, which resulted in the recovery of 62.40% of Au. The pulp density and glycine concentration greatly impact how much Au is bioleached by <i>C. violaceum</i>. 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.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10079379/pdf/","citationCount":"1","resultStr":"{\"title\":\"Optimization of Precious Metals Recovery from Electronic Waste by <i>Chromobacterium violaceum</i> Using Response Surface Methodology (RSM).\",\"authors\":\"Wan Nur Fazlina Abdol Jani, Fatihah Suja', Sharifah Iziuna Sayed Jamaludin, Nor Fadilah Mohamad, Noor Hidayu Abdul Rani\",\"doi\":\"10.1155/2023/4011670\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>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<sup>-1</sup>), e-waste pulp density (% w/v), and glycine concentration (mgL<sup>-1</sup>) 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<sup>-1</sup>, a pulp density of 1.95%, and a glycine concentration of 2.49 mgL<sup>-1</sup>, which resulted in the recovery of 62.40% of Au. The pulp density and glycine concentration greatly impact how much Au is bioleached by <i>C. violaceum</i>. 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.</p>\",\"PeriodicalId\":8914,\"journal\":{\"name\":\"Bioinorganic Chemistry and Applications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10079379/pdf/\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bioinorganic Chemistry and Applications\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1155/2023/4011670\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioinorganic Chemistry and Applications","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1155/2023/4011670","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
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 (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.
期刊介绍:
Bioinorganic Chemistry and Applications is primarily devoted to original research papers, but also publishes review articles, editorials, and letter to the editor in the general field of bioinorganic chemistry and its applications. Its scope includes all aspects of bioinorganic chemistry, including bioorganometallic chemistry and applied bioinorganic chemistry. The journal welcomes papers relating to metalloenzymes and model compounds, metal-based drugs, biomaterials, biocatalysis and bioelectronics, metals in biology and medicine, metals toxicology and metals in the environment, metal interactions with biomolecules and spectroscopic applications.