چکیده 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
کلیدواژهها
نویسندگان
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 Modares Environmental Research Institute, Tarbiat Modares University, Tehran, Iran
شیوه ارجاع
Shokri, Zahra and Omidkhah, Mohammad Reza and Mousavi, Seyyed Mohammad,1403,Metal Recovery From Spent Laptop Lithium-Ion Battery Cathodes Through Spent Medium Bioleaching With Acidithiobacillus thiooxidans,The second national and the first international conference of environmental challenges: green industry and mining ,Tehran
ارائهشده در
مجموعه مقالات دومین کنفرانس ملی و اولین کنفرانس بین المللی چالش های محیط زیست: صنعت و معدن سبز25 اردیبهشت 1403 · تهران