نانومقیاس

نانومقیاس

بازیابی طلا از زباله‌های الکترونیکی با استفاده از محلول لیچینگ یدید-ید و جاذب نانوبیوچار

نوع مقاله : مقاله پژوهشی

نویسندگان
دانشکده مهندسی و علم مواد. دانشگاه صنعتی خواجه نصیرالدین طوسی. تهران. ایران
چکیده
افزایش سریع زباله‌های الکترونیکی، چالش‌های زیست‌محیطی مهمی ایجاد کرده است. بازیافت این زباله‌ها، به‌ویژه فلزات گران‌بها مانند طلا، برای کاهش آلودگی و بازگرداندن منابع ارزشمند ضروری است. این پژوهش با هدف بررسی لیچینگ یدید-ید به عنوان فرآیند غیرسیانیدی و استفاده از نانوبیوچار به عنوان جاذب مقرون‌به‌صرفه و دوست‌دار محیط زیست برای بازیابی طلا از ضایعات الکترونیکی انجام شده است. در این تحقیق، نانوبیوچار حاصل از شاخه‌های هرس‌شده درخت زردآلو به عنوان جاذب زیست‌پایه برای بازیابی طلا به کار گرفته شد. تأثیر اندازه ذرات بیوچار، دما و مدت زمان فرآیند جذب با استفاده از طراحی آزمایش تاگوچی بهینه‌سازی گشت. در شرایط بهینه (دمای ۷۰ درجه سانتی‌گراد، زمان جذب ۵ ساعت و اندازه ذرات بیوچار در محدوده ۱۰۶ تا ۲۵۰ میکرومتر)، راندمان بازیابی طلا با استفاده از بیوچار به ۸۸ درصد رسید. همچنین، این روش با رسوب شیمیایی و رسوب الکتروشیمیایی مقایسه شد. ترکیب لیچینگ یدید-ید و استفاده از جاذب نانوبیوچار، ضمن ارائه راندمان قابل قبول، به دلیل هزینه پایین، سهولت اجرا و سازگاری با محیط زیست، می‌تواند گزینه‌ای ارزشمند برای بازیابی طلا از زباله‌های الکترونیکی باشد.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Gold Recovery from Electronic Waste using Iodide-Iodine Leaching Solution and Nanobiochar Adsorbent

نویسندگان English

Nafiseh Hassanzadeh
Seyed Ali Sarkeshikian
Mohammad Hossein Golboo
Soolmaz Safari
S. M. Hossein Siadati
Faculty of Materials Science and Engineering. K. N. Toosi University of Technology. Tehran. Iran
چکیده English

The rapid increase in electronic waste has created significant environmental challenges. Recycling this waste, especially precious metals such as gold, is essential for reducing pollution and recovering valuable resources. This study aims to investigate iodide-iodine leaching as a cyanide-free process and to utilize nanobiochar as a cost-effective and environmentally friendly adsorbent for gold recovery. In this research, biochar derived from pruned apricot tree branches was used as a bio-based adsorbent for gold recovery. The effects of biochar particle size, temperature, and adsorption duration were optimized using Taguchi experimental design. Under optimal conditions (temperature of 70°C, adsorption time of 5 hours, and biochar particle size of 106–250 micrometers), the gold recovery efficiency using biochar reached 88%. Also, this method was compared with chemical precipitation and electrochemical precipitation. The combination of iodide-iodine leaching and the use of nano-biochar adsorbent, while providing acceptable efficiency, due to its low cost, ease of implementation, and environmental compatibility, can be a valuable option for gold recovery from electronic waste.

کلیدواژه‌ها English

Printed circuit boards
Gold recovery
Nanobiochar
Leaching
Taguchi design
[1] Q. Tan, Q. Dong, L. Liu, Q. Song, Y. Liang, J. Li, “Potential recycling availability and capacity assessment on typical metals in waste mobile phones: A current research study in China”, Journal of Cleaner Production, 148, 509-517, 2017. https://doi.org/10.1016/j.jclepro.2017.02.036
[2] M. Peydayesh, E. Boschi, F. Donat, R. Mezzenga, “Gold Recovery from E-Waste by Food-Waste Amyloid Aerogels”, Advanced Materials, 36, 2310642, 2024. https://doi.org/10.1002/adma.202310642
[3] K. Liu, Q. Tan, J. Yu, M. Wang, “A global perspective on e-waste recycling”, Circular Economy, 2, 100028, 2023. https://doi.org/10.1016/j.cec.2023.100028
[4] M.D. Rao, K.K. Singh, C.A. Morrison, J.B. Love, “Challenges and opportunities in the recovery of gold from electronic waste”, RSC Advances, 10, 4300-4309, 2020. https://doi.org/10.1039/c9ra07607g
[5] F. Tesfaye, D. Lindberg, J. Hamuyuni, P. Taskinen, L. Hupa, “Improving urban mining practices for optimal recovery of resources from e-waste”, Minerals Engineering, 111, 209-221, 2017. https://doi.org/10.1016/j.mineng.2017.06.018
[6] M. Sahin, A. Akcil, C. Erust, S. Altynbek, C.S. Gahan, A. Tuncuk, “A Potential Alternative for Precious Metal Recovery from E-waste: Iodine Leaching”, Separation Science and Technology, 50, 2587-2595, 2015. https://doi.org/10.1080/01496395.2015.1061005
[7] M. Baniasadi, F. Vakilchap, N. Bahaloo-Horeh, S.M. Mousavi, S. Farnaud, “Advances in bioleaching as a sustainable method for metal recovery from e-waste: A review”, Journal of Industrial and Engineering Chemistry, 76, 75-90, 2019. https://doi.org/10.1016/j.jiec.2019.03.047
[8] Q. Meng, X. Yan, G. Li, “Eco-friendly and reagent recyclable gold extraction by iodination leaching-electrodeposition recovery”, Journal of Cleaner Production, 323, 129115, 2021. https://doi.org/10.1016/j.jclepro.2021.129115
[9] A. Akcil, C. Erust, C. Sekhar Gahan, M. Ozgun, M. Sahin, A. Tuncuk, “Precious metal recovery from waste printed circuit boards using cyanide and non-cyanide lixiviants – A review”, Waste Management, 45, 258-271, 2015. https://doi.org/10.1016/j.wasman.2015.01.017
[10] R. Khosravi, A. Azizi, R. Ghaedrahmati, V.K. Gupta, S. Agarwal, “Adsorption of gold from cyanide leaching solution onto activated carbon originating from coconut shell — Optimization, kinetics and equilibrium studies”, Journal of Industrial and Engineering Chemistry, 54, 464-471, 2017. https://doi.org/10.1016/j.jiec.2017.06.036
[11] Q. Wang, T. Liu, Y. Chen, S. Chen, X. Qin, Y. Nie, F. Zi, “Eco-friendly and economical extraction of gold from printed circuit boards”, Journal of Cleaner Production, 2021.
[12] C.J. Liang, J.Y. Li, “Recovery of gold in iodine-iodide system – a review”, Separation Science and Technology, 54, 1055-1066, 2019. https://doi.org/10.1080/01496395.2018.1523931
[13] W. Zhou, H. Liang, Y. Lu, H. Xu, Y. Jiao, “Adsorption of gold from waste mobile phones by biochar and activated carbon in gold iodized solution”, Waste Management, 120, 530-537, 2021. https://doi.org/10.1016/j.wasman.2020.10.017
[14] M. Ahmad, A.U. Rajapaksha, J.E. Lim, M. Zhang, N. Bolan, D. Mohan, M. Vithanage, S.S. Lee, Y.S. Ok, “Biochar as a sorbent for contaminant management in soil and water: A review”, Chemosphere, 99, 19-33, 2014. https://doi.org/10.1016/j.chemosphere.2013.10.071
[15] C.A. Fleming, A. Mezei, E. Bourricaudy, M. Canizares, M. Ashbury, “Factors influencing the rate of gold cyanide leaching and adsorption on activated carbon, and their impact on the design of CIL and CIP circuits”, Minerals Engineering, 24, 484-494, 2011. https://doi.org/10.1016/j.mineng.2011.03.021
[16] H. Zhang, I.M. Ritchie, S.R. La Brooy, “The adsorption of gold thiourea complex onto activated carbon”, Hydrometallurgy, 72, 291-301, 2004. https://doi.org/10.1016/S0304-386X(03)00182-8
[17] M. Gurung, B.B. Adhikari, H. Kawakita, K. Ohto, K. Inoue, “Recovery of gold and silver from spent mobile phones by means of acidothiourea leaching followed by adsorption using biosorbent prepared from persimmon tannin”, Hydrometallurgy, 133, 84-93, 2013. https://doi.org/10.1016/j.hydromet.2012.12.003
[18] S.K. Pang, K.C. Yung, “Prerequisites for achieving gold adsorption by multiwalled carbon nanotubes in gold recovery”, Chemical Engineering Science, 107, 58-65, 2014. https://doi.org/10.1016/j.ces.2013.11.026
[19] P.A.M. Teirlinck, F.W. Petersen, “The nature of gold-iodide adsorption onto coconut-shell carbon”, Minerals Engineering, 9, 923-930, 1996. https://doi.org/10.1016/0892-6875(96)00084-2
[20] L. Wang, J. Li, G. Zhong, J. Li, X. Lu, S. Wang, Y. Tang, “Diatom Biochar Recovered Au(III) Efficiently from Both Synthetic and Real Electroplating Wastewaters”, ACS ES&T Water, 3, 1395-1405, 2023. https://doi.org/10.1021/acsestwater.3c00066
[21] Z. Wang, X. Xu, S. Ma, H. Wang, H. Zhao, Y. Wang, S. Tong, Z. Su, W. Wang, J. Bai, “The superior adsorption capacity of boron-nitrogen co-doping walnut shell biochar powder for Au(III), Pt(IV), and Pd(II)”, Journal of Environmental Chemical Engineering, 9, 106288, 2021. https://doi.org/10.1016/j.jece.2021.106288
[22] Y. Tong, B.K. Mayer, P.J. McNamara, “Triclosan adsorption using wastewater biosolids-derived biochar”, Environmental Science: Water Research & Technology, 2, 761-768, 2016. https://doi.org/10.1039/C6EW00127K
[23] X. Kong, Y. Liu, J. Pi, W. Li, Q. Liao, J. Shang, “Low-cost magnetic herbal biochar: characterization and application for antibiotic removal”, Environmental Science and Pollution Research, 24, 6679-6687, 2017.
[24] N. Hassanzadeh, H. Omidvar, M. Poorbafrani, S.H. Tabaian, “Influence of Anodizing Parameters on Pore Diameter of Anodic Aluminium Oxide (AAO) Films Using Taguchi Design”, Arabian Journal for Science and Engineering, 38, 1305-1312, 2013. https://doi.org/10.1007/s13369-013-0593-2
[25] S. Fogarasi, F. Imre-Lucaci, Á. Imre-Lucaci, P. Ilea, “Copper recovery and gold enrichment from waste printed circuit boards by mediated electrochemical oxidation”, Journal of Hazardous Materials, 273, 215-221, 2014. https://doi.org/10.1016/j.jhazmat.2014.03.043
[26] M.M.H. Rocky, I.M.M. Rahman, M. Endo, H. Hasegawa, “Comprehensive insights into aqua regia-based hybrid methods for efficient recovery of precious metals from secondary raw materials”, Chemical Engineering Journal, 495, 153537, 2024. https://doi.org/10.1016/j.cej.2024.153537
[27] Q. Meng, X. Yan, G. Li, “Eco-friendly and reagent recyclable gold extraction by iodination leaching-electrodeposition recovery”, Journal of Cleaner Production, 323, 129115, 2021. https://doi.org/10.1016/j.jclepro.2021.129115
[28] M.D. Rao, K.K. Singh, C.A. Morrison, J.B. Love, “Challenges and opportunities in the recovery of gold from electronic waste”, RSC Advances, 10, 4300, 2020. https://doi.org/10.1039/C9RA07607G
[29] M.H. Do, G.T. Nguyen, U.D. Thach, Y. Lee, T.H. Bui, “Advances in hydrometallurgical approaches for gold recovery from E-waste: A comprehensive review and perspectives”, Minerals Engineering, 191, 107977, 2023. https://doi.org/10.1016/j.mineng.2022.107977
[30] N. Hassanzadeh, H. Omidvar, M. Poorbafrani, S.H. Tabaian, “Influence of Anodizing Parameters on Pore Diameter of Anodic Aluminium Oxide (AAO) Films Using Taguchi Design”, Arabian Journal for Science and Engineering, 38, 1305-1312, 2013. https://doi.org/10.1007/s13369-013-0593-2
[31] A. Shaaban, S.M. Se, N.M.M. Mitan, M.F. Dimin, “Characterization of Biochar Derived from Rubber Wood Sawdust through Slow Pyrolysis on Surface Porosities and Functional Groups”, Procedia Engineering, 68, 365-371, 2013. https://doi.org/10.1016/j.proeng.2013.12.193
[32] S.Y. Foong, B.L.F. Chin, S.S.M. Lock, C.L. Yiin, Y.H. Tan, G. Zheng, S. Ge, R.K. Liew, S.S. Lam, “Enhancing wastewater treatment with engineered biochar from microwave-assisted approach — A comprehensive review”, Environmental Technology & Innovation, 36, 103835, 2024. https://doi.org/10.1016/j.eti.2024.103835
[33] M.A. Mele, R. Kumar, T.K. Dada, A. Heydari, E. Antunes, “Investigation of gold adsorption by ironbark biochar using response surface methodology and artificial neural network modelling”, Journal of Cleaner Production, 456, 142317, 2024. https://doi.org/10.1016/j.jclepro.2024.142317
[34] M. Lekka, I. Masavetas, A.V. Benedetti, A. Moutsatsou, L. Fedrizzi, “Gold recovery from waste electrical and electronic equipment by electrodeposition: A feasibility study”, Hydrometallurgy, 157, 97-106, 2015. https://doi.org/10.1016/j.hydromet.2015.07.017
[35] M. Huy Do, G. Tien Nguyen, U. Dong Thach, Y. Lee, T. Huu Bui, “Advances in hydrometallurgical approaches for gold recovery from E-waste: A comprehensive review and perspectives”, Minerals Engineering, 191, 107977, 2023. https://doi.org/10.1016/j.mineng.2022.107977
[36] B.K. Biswal, R. Balasubramanian, “Use of biochar as a low-cost adsorbent for removal of heavy metals from water and wastewater: A review”, Journal of Environmental Chemical Engineering, 11, 110986, 2023. https://doi.org/10.1016/j.jece.2023.110986
[37] S. Syed, “Recovery of gold from secondary sources — A review”, Hydrometallurgy, 115-116, 30-51, 2012. https://doi.org/10.1016/j.hydromet.2011.12.012
[38] F.J. Alguacil, “Adsorption of Gold(I) and Gold(III) Using Multiwalled Carbon Nanotubes”, Applied Sciences, 8, 2264, 2018. https://doi.org/10.3390/app8112264
دوره 12، شماره 3
پاییز 1404
صفحه 302-317

  • تاریخ دریافت 06 شهریور 1404
  • تاریخ بازنگری 04 مهر 1404
  • تاریخ پذیرش 21 مهر 1404