Recovery of Valuable Metals from Electronic and Galvanic Industrial Wastes by Leaching and Electrowinning, (Articolo in rivista)

Type
Label
  • Recovery of Valuable Metals from Electronic and Galvanic Industrial Wastes by Leaching and Electrowinning, (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0956-053X(02)00157-5 (literal)
Alternative label
  • Veglio' F., Quaresima R., Fornari P. , Ubaldini S. (2003)
    Recovery of Valuable Metals from Electronic and Galvanic Industrial Wastes by Leaching and Electrowinning,
    in Waste management (Elmsford)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Veglio' F., Quaresima R., Fornari P. , Ubaldini S. (literal)
Pagina inizio
  • 245 (literal)
Pagina fine
  • 252 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.elsevier.com (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 23 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Sono stati portati a termine studi relativi al trattamento e riciclo di materiali reflui, con particolare riferimento alla rimozione dei metalli tossici (Ni, Cu) provenienti da reflui dell’industria elettronica e dalle georisorse a basso tenore e marginali. Il lavoro sperimentale, condotto mediante piano fattoriale degli esperimenti, ha prodotto, su scala di laboratorio, un circuito di trattamento completo per i recupero finale dei valori metallici dalle soluzioni di processo mediante metodi elettrochimici. (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
  • Elsevier (literal)
  • Google Scholar (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 e 2: Università degli Studi di L'Aquila. 3 e 4: CNR-Istituto di Geologia Ambientale e Geoingegneria (literal)
Titolo
  • Recovery of Valuable Metals from Electronic and Galvanic Industrial Wastes by Leaching and Electrowinning, (literal)
Abstract
  • In the present paper, a study on laboratory scale to perform a treatment for valuable metals recovery from electronic and galvanic industrial wastes, is reported. The characterisation of the waste, performed by XRD, SEM, EDX and chemical analysis, showed a high metals content in the sludge, such as Cu, Ni, Mn, Pb, Sn, W. A leaching process, coupled by electrowinning, is then proposed in order to reduce the volume of the waste material and to recover selectively valuable metals, such as Cu and Ni. During the leaching step, carried out by using H2SO4, several factors were investigated (acid concentration, temperature and time of treatment). The leached liquor has been successfully treated with an electrowinning process, to recover copper and nickel. The copper and nickel depositions, were performed in acid and alkaline conditions, respectively. The Faraday yield was of about 95%. The energy consumption was 2.13 kWh and 4.43 kWh per kg of copper and nickel recovered, respectively. At the end of the process, about 94-99% of the initial content of Cu and Ni was recovered at the cathode. The experimental results obtained, showed the technical feasibility of the process. (literal)
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