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نخستین کنفرانس ملی چالشهای محیط زیست: صنعت و معدن سبز
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Metal Recovery From Spent Laptop Lithium-Ion Battery Cathodes Through Spent Medium Bioleaching With Acidithiobacillus thiooxidans |
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| چکیده انگلیسی مقاله |
The extensive utilization of lithium-ion batteries in electronic gadgets, coupled with their limited lifespan, has generated substantial waste. Disposal of end-of-life batteries not only contributes to environmental contamination but also entails the loss of valuable metals. The research explored the potential of bioleaching as an eco-friendly method for detoxifying and reclaiming valuable metals from spent laptop lithium-ion battery cathodes. Acidithiobacillus thiooxidans was utilized to produce biological sulfuric acid by oxidizing elemental sulfur. Initial experiments involved varying sulfur concentrations (5, 10, and 15 g/l) to generate metabolites with sulfate concentrations of 11, 23, and 37 g/l. These metabolites were then used in spent medium bioleaching experiments conducted at a pulp density of 50 g/l for 7 days at 60°C. According to the results, the metabolite with the higher sulfate concentration obtained the highest recovery of lithium, cobalt, nickel, and manganese. Under these conditions, the recovery of mentioned metals was 86.1, 47.8, 52.8, and 58.2 %, respectively. Stabilized pH and Eh in the bioleaching solution after 24 hours enabled shortening bioleaching to 1 day from 7. Extending beyond one day had no notable effect on metal recovery from the spent laptop lithium-ion battery cathodes. |
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| کلیدواژه‌های انگلیسی مقاله |
Spent laptop lithium-ion battery cathodes، Indirect bioleaching، Acidithiobacillus thiooxidan، Biogenic sulfuric acid، Metal recovery |
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| نویسندگان مقاله |
| Zahra Shokri
Process Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran
| Mohammad Reza Omidkhah
Process Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran
| Seyyed Mohammad Mousavi
Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran and Modares Environmental Research Institute, Tarbiat Modares University, Tehran, Iran
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| نشانی اینترنتی |
http://ncec.modares.ac.ir/browse.php?a_code=A-10-516-1&slc_lang=fa&sid=1 |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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کنفرانس مرتبط |
فهرست کنفرانس ها
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