Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Effectiveness of chlorine dioxide in meeting the enhanced surface water treatment and disinfection by-products rules
Autore:
Arora, H; LeChevallier, M; Battigelli, D;
Indirizzi:
Amer Water Works Serv Co Inc, Voorhees, NJ 08843 USA Amer Water Works ServCo Inc Voorhees NJ USA 08843 Voorhees, NJ 08843 USA Wisconsin State Lab Hyd, Madison, WI 53718 USA Wisconsin State Lab Hyd Madison WI USA 53718 b Hyd, Madison, WI 53718 USA
Titolo Testata:
JOURNAL OF WATER SERVICES RESEARCH AND TECHNOLOGY-AQUA
fascicolo: 4, volume: 50, anno: 2001,
pagine: 209 - 227
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRYPTOSPORIDIUM-PARVUM OOCYSTS; INVITRO EXCYSTATION; DRINKING-WATER; INACTIVATION; VIABILITY; OZONE; ION;
Keywords:
chlorine dioxide; costs; Cryptosporidium; disinfection by-products; inactivation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Arora, H Amer Water Works Serv Co Inc, 1025 Laurel Oak Rd, Voorhees, NJ 08843 USA Amer Water Works Serv Co Inc 1025 Laurel Oak Rd Voorhees NJ USA 08843
Citazione:
H. Arora et al., "Effectiveness of chlorine dioxide in meeting the enhanced surface water treatment and disinfection by-products rules", J WAT SER T, 50(4), 2001, pp. 209-227

Abstract

Bench-scale Cryptosporidium inactivation, pilot-scale disinfection by-product (DBP) formation and bench-scale inorganic DBP control experiments were conducted to evaluate the effectiveness of chlorine dioxide in meeting the current and future enhanced surface water treatment and disinfectant/disinfection by-product rules. A new chlorine dioxide generation process in whichdilute, humidified chlorine gas is in contact with solid sodium chlorite was employed for this study. Chlorine dioxide was found to be effective in achieving CT values (pH=8 and temperature=20 degreesC) of approximately 50 and 100 mg (.) min/l for 1-log and 2-log Cryptosporidium inactivation, respectively. Chlorine dioxide did not form significant amounts of trihalomethanes or haloacetic acids. Water spiked with high bromide concentrations resulted in insignificant amounts of organic DBPs after reaction with chlorine dioxide. Reaction of chlorine dioxide with water constituents resulted in the formation of chlorite and chlorate ions. Addition of ferrous ion is an effective treatment strategy for chlorite ion control.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 02:17:25