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Characterization and treatment of wastewater produced during the hydro-metallurgical extraction of Germanium from fly ash

Kalderis Dimitrios, Tsolaki Efthymia, Antoniou Konstantinos, Diamantopoulos Evaggelos

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/54DFA6FC-6998-4BC9-822A-ED2763BD52FE-
Αναγνωριστικόhttps://doi.org/10.1016/j.desal.2007.11.023-
Αναγνωριστικόhttps://www.sciencedirect.com/science/article/pii/S0011916408003111-
Γλώσσαen-
Μέγεθος13 pagesen
ΤίτλοςCharacterization and treatment of wastewater produced during the hydro-metallurgical extraction of Germanium from fly ashen
ΔημιουργόςKalderis Dimitriosen
ΔημιουργόςΚαλδερης Δημητριοςel
ΔημιουργόςTsolaki Efthymiaen
ΔημιουργόςΤσολακη Ευθυμιαel
ΔημιουργόςAntoniou Konstantinosen
ΔημιουργόςΑντωνιου Κωνσταντινοςel
ΔημιουργόςDiamantopoulos Evaggelosen
ΔημιουργόςΔιαμαντοπουλος Ευαγγελοςel
ΕκδότηςElsevieren
ΠερίληψηThe present work dealt with the characterization and treatment of liquid wastes produced during the hydrometallurgical recovery of germanium (Ge) from fly ash. The main metals causing reasons for environmental concern were arsenic (As), nickel (Ni) and antimony (Sb). Precipitation using calcium hydroxide (hydrated lime) was the most efficient method for treating wastewaters with high levels of As, Sb and Ni (up to 99.9% removal). However, relatively large quantities of sludge were produced due to the large doses employed. Reverse osmosis (RO) also proved to be an efficient method achieving heavy metal removals of over 90%. Large quantities of concentrate were produced which required subsequent treatment by lime precipitation. A combined treatment of RO and lime precipitation of the resultant concentrate stream yielded a 97.5% removal of metals. At the same time, a stream with a concentrated level of catechol was obtained that could be reused in the extraction of Ge.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-11-18-
Ημερομηνία Δημοσίευσης2008-
Θεματική ΚατηγορίαHydrometallurgical extractionen
Θεματική ΚατηγορίαGermaniumen
Θεματική ΚατηγορίαArsenicen
Βιβλιογραφική ΑναφοράD. Kalderis, E. Tsolaki, C. Antoniou and E. Diamadopoulos, "Characterization and treatment of wastewater produced during the hydro-metallurgical extraction of germanium from fly ash," vol. 230, no. 1-3, pp. 162-174, Sept. 2008. doi:10.1016/j.desal.2007.11.023en

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