Coupling the recovery of spent lithium-ion batteries and the treatment of phenol wastewater: A “treating waste with waste” strategy

The recovery of spent lithium-ion batteries and the treatment of phenol wastewater are both environmental and social issues. In this study, the enhanced recovery of spent lithium-ion batteries and the efficient treatment of phenol wastewater are smartly coupled via a “treating waste with waste” stra...

Full description

Saved in:
Bibliographic Details
Published in:Chemosphere (Oxford) 2023-11, Vol.341, p.140018-140018, Article 140018
Main Authors: Luo, Siyuan, Zhu, Xuhui, Gong, Mengqi, Mo, Ran, Yang, Shun
Format: Article
Language:English
Subjects:
Peroxymonosulfate
Phenol wastewater
Spent graphite
Spent lithium-ion batteries
Valuable metals recovery
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The recovery of spent lithium-ion batteries and the treatment of phenol wastewater are both environmental and social issues. In this study, the enhanced recovery of spent lithium-ion batteries and the efficient treatment of phenol wastewater are smartly coupled via a “treating waste with waste” strategy. Under optimal conditions, the leaching process involving phenol achieves 98% and 96% efficiency for Co and Li, respectively. After precipitation, Co and Li could be recovered as Co(OH)2 and Li2CO3, and the precipitated Co(OH)2 was further calcined to generate Co3O4. Furthermore, the organic contaminants that remained in the waste-leaching solution could be removed by a spent graphite-activating peroxymonosulfate (PMS) process. It is noteworthy that the total organic carbon (TOC) in the waste-leaching solution could be removed using fewer PMS compared with the original phenol wastewater owing to the pre-oxidation of phenol during the leaching process, further confirming the advantage of this “treating waste with waste” strategy. Herein, enhanced recovery of valuable metals from spent lithium-ion batteries and efficient treatment of phenol-wastewater are smartly coupled with a ‘treating waste with waste’ strategy. [Display omitted] •Phenol wastewater is used to enhance the recovery of valuable metals from spent cathode material.•Li and Co have maximum leaching efficiencies of 98% and 96%, respectively.•The organic residues in the waste solution are removed more efficiently by the spent graphite activating PMS process.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2023.140018