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This study demonstrates a facile strategy to simultaneously recover Cu and EDTA ligands from Cu\u00ad(II)\u2013EDTA electroless effluent with commercially available metallic Cu and formaldehyde. In this strategy, metallic Cu is used to activate formaldehyde, a prevalent yet often overlooked cocontaminant in Cu\u00ad(II)\u2013EDTA effluents, to produce highly reductive hydrogen radical (\u2022H), which in situ decomplex Cu\u00ad(II)\u2013EDTA, reduces the central Cu\u00ad(II) into metallic Cu, and release EDTA ligand. Impressively, this strategy can recover 99.9% of Cu from a real Cu\u00ad(II)\u2013EDTA effluent (\u223c2000 mg\/L) as a high-purity Cu powder without further treatment, and 99.2% of EDTA from a real Cu\u00ad(II)\u2013EDTA effluent using a precipitation-acidification post-treatment procedure, earning a net profit of US $72.38 per ton. The proposed approach offers a \u201cpollution-curing-pollution\u201d solution to transform chelated metal waste into valuable resources.<\/jats:p>","DOI":"10.1021\/acs.est.4c09970","type":"journal-article","created":{"date-parts":[[2024,12,30]],"date-time":"2024-12-30T04:50:06Z","timestamp":1735534206000},"page":"968-977","source":"Crossref","is-referenced-by-count":46,"title":["Simultaneous Copper\nand EDTA Ligands Recovery from\nElectroless Effluent with Metallic Copper and Formaldehyde"],"prefix":"10.1021","volume":"59","author":[{"given":"Yi","family":"Mu","sequence":"first","affiliation":[{"name":"Nanchang Hangkong University , , ,","place":["Nanchang, China, 330063"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinlu","family":"Tong","sequence":"additional","affiliation":[{"name":"Nanchang Hangkong University , , ,","place":["Nanchang, China, 330063"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingying","family":"Guan","sequence":"additional","affiliation":[{"name":"Nanchang Hangkong University , , ,","place":["Nanchang, China, 330063"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qianghua","family":"Yu","sequence":"additional","affiliation":[{"name":"Nanchang Hangkong University , , ,","place":["Nanchang, China, 330063"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1299-0393","authenticated-orcid":true,"given":"Wei","family":"Ren","sequence":"additional","affiliation":[{"name":"Nanchang Hangkong University , , ,","place":["Nanchang, China, 330063"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Tian","sequence":"additional","affiliation":[{"name":"Nanchang Hangkong University , , ,","place":["Nanchang, China, 330063"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haopeng","family":"Pei","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University , , ,","place":["Shanghai, P. 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