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

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  • Additional Information
    • Source:
      Publisher: Wiley Country of Publication: United States NLM ID: 101200445 Publication Model: eCollection Cited Medium: Print ISSN: 1565-3633 (Print) NLM ISO Abbreviation: Bioinorg Chem Appl Subsets: PubMed not MEDLINE
    • Publication Information:
      Publication: 2024- : [Hoboken, NJ] : Wiley
      Original Publication: Tel Aviv : Freund Pub. House Ltd., 2003-
    • Abstract:
      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.
      Competing Interests: The authors declare that they have no conflicts of interest.
      (Copyright © 2023 Wan Nur Fazlina Abdol Jani et al.)
    • References:
      Sci Rep. 2013;3:2236. (PMID: 23868689)
      J Hazard Mater. 2009 Dec 30;172(2-3):1100-5. (PMID: 19699031)
      J Biotechnol. 2004 Sep 30;113(1-3):321-6. (PMID: 15380664)
      Indian J Occup Environ Med. 2008 Aug;12(2):65-70. (PMID: 20040981)
      J Environ Health Sci Eng. 2014 Jan 20;12(1):36. (PMID: 24444377)
      J Biotechnol. 2006 Jul 25;124(3):545-51. (PMID: 16567012)
      Braz J Microbiol. 2015 Jul 01;46(3):707-13. (PMID: 26413051)
      Lancet. 1953 Aug 8;265(6780):276-7. (PMID: 13085740)
      Curr Microbiol. 2018 Feb;75(2):194-201. (PMID: 29027582)
      Waste Manag Res. 2012 Nov;30(11):1151-9. (PMID: 22452961)
      Environ Sci Technol. 2008 Sep 15;42(18):6782-3. (PMID: 18853788)
      Waste Manag. 2016 Nov;57:158-167. (PMID: 27264460)
    • Publication Date:
      Date Created: 20230410 Latest Revision: 20230411
    • Publication Date:
      20250114
    • Accession Number:
      PMC10079379
    • Accession Number:
      10.1155/2023/4011670
    • Accession Number:
      37033717