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Arsenic and chromium removal from water using biochars derived from rice husk, organic solid wastes and sewage sludge

Agrafioti Evanthia, Kalderis Dimitrios, Diamantopoulos Evaggelos

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/25BCDFB6-42DF-4327-B96D-727FD82FAC60-
Αναγνωριστικόhttps://doi.org/10.1016/j.jenvman.2013.12.007-
Αναγνωριστικόhttp://www.sciencedirect.com/science/article/pii/S0301479713007470?via%3Dihub-
Γλώσσαen-
Μέγεθος6 pagesen
ΤίτλοςArsenic and chromium removal from water using biochars derived from rice husk, organic solid wastes and sewage sludgeen
ΔημιουργόςAgrafioti Evanthiaen
ΔημιουργόςΑγραφιωτη Ευανθιαel
ΔημιουργόςKalderis Dimitriosen
ΔημιουργόςΚαλδερης Δημητριοςel
ΔημιουργόςDiamantopoulos Evaggelosen
ΔημιουργόςΔιαμαντοπουλος Ευαγγελοςel
ΕκδότηςElsevieren
ΠερίληψηBiochars derived from rice husk, the organic fraction of municipal solid wastes and sewage sludge, as well as a sandy loam soil, were used as adsorbents for As(V), Cr(III) and Cr(VI) removal from aqueous solutions. The kinetic study showed that sorption can be well described by the pseudo-second order kinetic model, while simulation of sorption isotherms gave better fit for the Freundlich model. The materials examined removed more than 95% of the initial Cr(III). However, removal rates for As(V) and Cr(VI) anions were significantly lower. Biochar derived from sewage sludge was efficient in removing 89% of Cr(VI) and 53% of As(V). Its ash high Fe2O3 content may have enhanced metal adsorption via precipitation. Soil was the most effective material for the removal of As(V), yet it could not strongly retain metal anions compared to biochars, as a significant amount of the adsorbed metal was released during desorption experiments.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-11-19-
Ημερομηνία Δημοσίευσης2014-
Θεματική ΚατηγορίαEnvironmental managementen
Θεματική ΚατηγορίαDesorptionen
Θεματική ΚατηγορίαAdsorptionen
Βιβλιογραφική ΑναφοράE. Agrafiotia, D. Kalderisb and E. Diamadopoulos, "Arsenic and chromium removal from water using biochars derived from rice husk, organic solid wastes and sewage sludge," J. Environ. Manage., vol. 133, pp. 309-314, Jan. 2014. doi: 10.1016/j.jenvman.2013.12.007 en

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