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。

IF 4.7 3区 化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Wan Nur Fazlina Abdol Jani, Fatihah Suja', Sharifah Iziuna Sayed Jamaludin, Nor Fadilah Mohamad, Noor Hidayu Abdul Rani
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引用次数: 1

摘要

一种有效的回收技术在未来将是有价值的,因为源中所含贵金属的浓度可能是回收技术的关键驱动因素。本研究旨在利用响应面法(RSM),通过Minitab软件,找出最佳氧浓度(mgL-1)、电子废物浆密度(% w/v)和甘氨酸浓度(mgL-1)对金(Au)和银(Ag)的最大回收率。采用2l间歇式搅拌槽式反应器(BSTR)从生物浸出中回收贵金属的方法。采用RSM实验统计设计的Box-Behnken法对实验流程进行优化。RSM优化结果表明,当氧浓度为0.56 mg -1,矿浆密度为1.95%,甘氨酸浓度为2.49 mg -1时,金的回收率最高,回收率为62.40%。矿浆密度和甘氨酸浓度对金的生物浸出量有较大影响。因此,并非所有被分析的变量似乎都对贵金属的最佳复苏至关重要,一些调整可能在未来有用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Optimization of Precious Metals Recovery from Electronic Waste by <i>Chromobacterium violaceum</i> Using Response Surface Methodology (RSM).

Optimization of Precious Metals Recovery from Electronic Waste by <i>Chromobacterium violaceum</i> Using Response Surface Methodology (RSM).

Optimization of Precious Metals Recovery from Electronic Waste by <i>Chromobacterium violaceum</i> Using Response Surface Methodology (RSM).

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.

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来源期刊
Bioinorganic Chemistry and Applications
Bioinorganic Chemistry and Applications 化学-生化与分子生物学
CiteScore
7.00
自引率
5.30%
发文量
105
审稿时长
>12 weeks
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.
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