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Titolo:
KINETICS OF HEAVY-METAL REACTIONS WITH FERROUS SULFIDE
Autore:
DAVIS AP; HAO OJ; CHEN JM;
Indirizzi:
UNIV MARYLAND,DEPT CIVIL ENGN COLL PK MD 20742 UNIV MARYLAND,DEPT CIVIL ENGN COLL PK MD 20742
Titolo Testata:
Chemosphere
fascicolo: 6, volume: 28, anno: 1994,
pagine: 1147 - 1164
SICI:
0045-6535(1994)28:6<1147:KOHRWF>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
COPPER(II) SULFIDE; HYDROUS CDS(S); SYSTEMS; IRON; DISSOLUTION; SURFACE; CU(II); WATER; IONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
A.P. Davis et al., "KINETICS OF HEAVY-METAL REACTIONS WITH FERROUS SULFIDE", Chemosphere, 28(6), 1994, pp. 1147-1164

Abstract

The kinetics of heavy metal exchange with ferrous sulfide is examined. The removal rates are dependent on the type and concentration of metals, as well as pH. At pH 7, the removal rates follow the order: Cu(II) > Zn(II) > Pb(II) > Cd(II). The reaction with copper occurs very rapidly; however it is inhibited by copper complexation with EDTA. The rate of both lead and cadmium exchange decreases at low pH. Competition among metals for active FeS sites may exist. The addition of copper and subsequent formation of CuS seem to assist in the removal of other metals, apparently due to adsorption onto the CuS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 12:30:40