Catalogo Articoli (Spogli Riviste)
OPAC HELP
Titolo: Retention of heavy metal ions with nanofiltration inorganic membranes by grafting chelating groups
Autore: Bougen, A; Rabiller-Baudry, M; Chaufer, B; Michel, F;
- Indirizzi:
- Univ Rennes 1, Lab Proc Separat, UC 991, INRA, F-35042 Rennes, France UnivRennes 1 Rennes France F-35042 UC 991, INRA, F-35042 Rennes, France INRA, Rech Technol Laitiere Lab, UP 121, F-35042 Rennes, France INRA Rennes France F-35042 Laitiere Lab, UP 121, F-35042 Rennes, France
- Titolo Testata:
- SEPARATION AND PURIFICATION TECHNOLOGY
fascicolo: 1-3,
volume: 25,
anno: 2001,
pagine: 219 - 227
- SICI:
- 1383-5866(20011001)25:1-3<219:ROHMIW>2.0.ZU;2-U
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- POROUS MEMBRANES; ULTRAFILTRATION; SEPARATION; PERMEATION; CATIONS; REMOVAL;
- Keywords:
- grafted membrane; complex; metal ions; nanofiltration;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Engineering, Computing & Technology
- Citazioni:
- 23
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Rabiller-Baudry, M Univ Rennes 1, Lab Proc Separat, UC 991, INRA, Campus Beaulieu,Batiment 10A,263 Ave Gen Leclerc, F-35042 Rennes, France Univ Rennes 1 Campus Beaulieu,Batiment 10 A,263 Ave Gen Leclerc Rennes France F-35042
-
-
-
- Citazione:
- A. Bougen et al., "Retention of heavy metal ions with nanofiltration inorganic membranes by grafting chelating groups", SEP PURIF T, 25(1-3), 2001, pp. 219-227
Abstract
New membranes with complexing abilities were obtained by grafting titanatecoupling agents bearing ethylenediamine groups (EDA, strong chelating ligand towards Cu2+) or pyrophosphate groups (PP, weak chelating ligand towardsCu2+ and Zn2+) on inorganic nanofiltration membranes. The retention of 10 mmol l(-1) chloride solutions of Cu2+ and Zn2+ by the unmodified NF membrane (no complex formation) and the PP grafted membrane (formation of weak complex) was about 50% which is roughly the retention of Ca2+ (no complex formation) with the EDA grafted membrane. Complex formation with the PP graftedmembrane does not appear strong enough to enhance Zn2+ and Cu2+ retention. The retention of Cu2+ was enhanced up to 80-90% with the EDA grafted membrane, due to the occurrence of formation of a strong complex with EDA groups. Contrary to resin process where a breakthrough curve is expected, a steady-state of Cu2+ retention was observed, whereas Cu2+ in the feed solution was about 50 times the membrane capacity to bind the metal cation. (C) 2001 Elsevier Science B.V. All rights reserved.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 12:42:14