Authors :
Rithik Vinay P.S; Pratyush .S; Harish Rahul P; Jadon Jedidiah
Volume/Issue :
Volume 9 - 2024, Issue 10 - October
Google Scholar :
https://tinyurl.com/3cytbejs
Scribd :
https://tinyurl.com/5bfwj74s
DOI :
https://doi.org/10.38124/ijisrt/IJISRT24OCT267
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
The rapid proliferation of electronic devices
has led to a substantial increase in electronic waste (e-
waste), which contains valuable metals and hazardous
substances. Traditional recycling methods, reliant on
chemical processes, are often inefficient and
environmentally damaging. This study investigates
bioleaching, a process that employs bacteria to extract
metals from e-waste, as a more sustainable alternative. By
utilizing bacteria such as Acidithiobacillus ferrooxidans,
bioleaching promises to recover valuable metals like gold,
silver, and copper while minimizing environmental harm.
The research focuses on optimizing bacterial strains and
environmental conditions to enhance metal recovery rates
and reduce processing times. A comparative analysis with
traditional recycling methods highlights bioleaching’s
potential benefits and challenges. The study also examines
the feasibility of scaling bioleaching for industrial
applications and assesses its overall environmental
impact. Findings suggest that bioleaching could offer an
eco-friendly solution to e-waste management,
contributing to more sustainable recycling practices and
resource conservation.
References :
- Ghosh, B., Ghosh, M. K., Parhi, P., Mukherjee, P. S., Mishra, B. K., & Srinivasa Rao, K. (2015). Waste printed circuit boards recycling: An extensive assessment of current status. Journal of Cleaner Production, 94, 5-19. doi:10.1016/j.jclepro.2015.02.024
- Liang, Y., & Zhang, X. (2019). Bioleaching of metals from electronic scrap by bacterial strains: A review. Journal of Environmental Chemical Engineering, 7(4), 103237. doi:10.1016/j.jece.2019.103237
- Johnson, D. B., & Hallberg, K. B. (2020). Acidophilic sulphur-oxidising bacteria: The phoenix rises from the ashes. Extremophiles, 24, 87-95. doi:10.1007/s00792-019-01140-2
- Işıldar, A., Rene, E. R., van Hullebusch, E. D., & Lens, P. N. L. (2016). Electronic waste as a secondary source of critical metals: Management and recovery technologies. Resources, Conservation and Recycling, 113, 75-85. doi:10.1016/j.resconrec.2016.05.002
- Brandl, H., Bosshard, R., & Wegmann, M. (2001). Computer-munching microbes: Metal leaching from electronic scrap by bacteria and fungi. Hydrometallurgy, 59(2-3), 319-326. doi:10.1016/S0304-386X(00)00188-2
- Pant, D., & Joshi, D. (2016). Bioleaching of metals from electronic waste using fungal strains: A review. Environmental Pollution, 213, 210-214. doi:10.1016/j.envpol.2016.02.007
- Arshadi, M., Mousavi, S. M., & Amiri, F. (2018). Metal recovery from electronic waste by bioleaching: A review. Environmental Progress & Sustainable Energy, 37(2), 327-350. doi:10.1002/ep.12660
The rapid proliferation of electronic devices
has led to a substantial increase in electronic waste (e-
waste), which contains valuable metals and hazardous
substances. Traditional recycling methods, reliant on
chemical processes, are often inefficient and
environmentally damaging. This study investigates
bioleaching, a process that employs bacteria to extract
metals from e-waste, as a more sustainable alternative. By
utilizing bacteria such as Acidithiobacillus ferrooxidans,
bioleaching promises to recover valuable metals like gold,
silver, and copper while minimizing environmental harm.
The research focuses on optimizing bacterial strains and
environmental conditions to enhance metal recovery rates
and reduce processing times. A comparative analysis with
traditional recycling methods highlights bioleaching’s
potential benefits and challenges. The study also examines
the feasibility of scaling bioleaching for industrial
applications and assesses its overall environmental
impact. Findings suggest that bioleaching could offer an
eco-friendly solution to e-waste management,
contributing to more sustainable recycling practices and
resource conservation.