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Titolo:
THE USE OF BERINGITE TO REMOVE FULVIC-ACIDS (MUTAGEN PRECURSORS) FROMWATER
Autore:
FARNWORTH JJ; HAYES MHB; NUNN JW; CHIPMAN JK;
Indirizzi:
UNIV BIRMINGHAM,SCH BIOCHEM BIRMINGHAM B15 2TT W MIDLANDS ENGLAND UNIV BIRMINGHAM,SCH BIOCHEM BIRMINGHAM B15 2TT W MIDLANDS ENGLAND
Titolo Testata:
Environmental technology
fascicolo: 5, volume: 17, anno: 1996,
pagine: 509 - 516
SICI:
0959-3330(1996)17:5<509:TUOBTR>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
DRINKING-WATER; BY-PRODUCTS; CHLORO-4-(DICHLOROMETHYL)-5-HYDROXY-2)5H>-FURANONE; CHLORINATION; DISINFECTION; CANCER; RESINS;
Keywords:
BERINGITE; COLOR REMOVAL; CHLORINATION BY-PRODUCTS; FULVIC ACIDS; MUTAGENICITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
J.J. Farnworth et al., "THE USE OF BERINGITE TO REMOVE FULVIC-ACIDS (MUTAGEN PRECURSORS) FROMWATER", Environmental technology, 17(5), 1996, pp. 509-516

Abstract

Dissolved humic substances, which are mostly fulvic acids, impart colour to natural waters. Colour from humic substances is especially evident in waters from upland peats. Chlorination of such waters may result in the formation of bacterial mutagens; hence there is a need for methods for the removal of the coloured materials prior to chlorination. A column system of Beringite (a calcined Palaeozoic schist) has been used in the present study for this purpose. Results show that althoughBeringite can sorb fulvic acids (and thus mutagenic precursors) from water its sorption capacity is low. Methods were investigated for the desorption from Beringite of the sorbed mutagen precursors. Sodium carbonate removed approximately 72% of the sorbed humic material and was the most effective;of the chemical agents used to regenerate the Beringite. Tetrasodium pyrophosphate displaced approximately 65% of the colour, but it formed a complex with the Beringite which solidified. Sodium hydroxide and sodium tetraborate were ineffective desorbing agents.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 08:12:09