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Titolo:
Removal of inorganic mercury from aqueous solutions by carbonized waste newsprint fiber
Autore:
Aoyama, M; Seki, K; Kasai, A; Kurimoto, Y; Chen, K; Doi, S;
Indirizzi:
Hokkaido Forest Prod Res Inst, Asahikawa, Hokkaido 0710198, Japan HokkaidoForest Prod Res Inst Asahikawa Hokkaido Japan 0710198 198, Japan Akita Prefectural Univ, Inst Wood Technol, Noshiro 0160876, Japan Akita Prefectural Univ Noshiro Japan 0160876 nol, Noshiro 0160876, Japan
Titolo Testata:
ENVIRONMENTAL TECHNOLOGY
fascicolo: 9, volume: 21, anno: 2000,
pagine: 1013 - 1018
SICI:
0959-3330(200009)21:9<1013:ROIMFA>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACTIVATED CARBON; WATER; ADSORPTION; BINDING;
Keywords:
waste newsprint; carbonization; mercury adsorption; wastewater treatment;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Aoyama, M Hokkaido Forest Prod Res Inst, 1-10 Nishikagura, Asahikawa, Hokkaido 0710198, Japan Hokkaido Forest Prod Res Inst 1-10 Nishikagura Asahikawa Hokkaido Japan 0710198
Citazione:
M. Aoyama et al., "Removal of inorganic mercury from aqueous solutions by carbonized waste newsprint fiber", ENV TECHNOL, 21(9), 2000, pp. 1013-1018

Abstract

The ability of carbonized waste newsprint fiber to remove Hg(II) from aqueous solutions by physicochemical adsorption was investigated. Defiberized waste newsprint was carbonized in a nitrogen atmosphere at temperatures ranging 600 to 900 degreesC for 3 h. Research parameters included carbonizationtemperature, initial solution pH. contact time, solution temperature, and initial concentration of Hg(II). The studies showed the adsorbents to be anefficient adsorbent for removing Hg(II) from aqueous solutions. Of the parameters studied, carbonization temperature and initial solution pH were considered to be the most crucial. The amount of Hg(II) adsorbed onto the adsorbent increased with increasing carbonization temperature in the pH range 3to 9, while it decreased as the temperature increased at pH 11. The extentof the adsorption was also dependent upon the contact time, solution temperature, and initial concentration of Hg(II). The adsorption data were well fitted to both the Freundlich and Langmuir isotherms, Desorption studies imply the occurrence of strong interaction of the Hg(II) species with the active sites on the surface of the adsorbent.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 21:52:02