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Titolo:
SIMULTANEOUS HYDROLYSIS AND FERMENTATION OF PULP-MILL PRIMARY CLARIFIER SLUDGE
Autore:
DUFF SJB; MORITZ JW; ANDERSEN KL;
Indirizzi:
UNIV BRITISH COLUMBIA,CTR PULP & PAPER,2216 MAIN MALL VANCOUVER BC V6T 1Z4 CANADA UNIV BRITISH COLUMBIA,DEPT CHEM ENGN VANCOUVER BC V6T 1Z4 CANADA UNIV BRITISH COLUMBIA,DEPT BIORESOURCE ENGN VANCOUVER BC V6T 1Z4 CANADA
Titolo Testata:
Canadian journal of chemical engineering
fascicolo: 6, volume: 72, anno: 1994,
pagine: 1013 - 1020
SICI:
0008-4034(1994)72:6<1013:SHAFOP>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENZYMATIC-HYDROLYSIS; CELLULOSE HYDROLYSIS; FUEL ETHANOL; ADSORPTION; DEACTIVATION; SURFACTANT; BIOMASS;
Keywords:
PRIMARY CLARIFIER SLUDGE; ENZYMATIC HYDROLYSIS; SIMULTANEOUS HYDROLYSIS AND FERMENTATION; CELLULASE; FUEL ETHANOL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
S.J.B. Duff et al., "SIMULTANEOUS HYDROLYSIS AND FERMENTATION OF PULP-MILL PRIMARY CLARIFIER SLUDGE", Canadian journal of chemical engineering, 72(6), 1994, pp. 1013-1020

Abstract

Bioconversion of sludge from the primary clarifier of a sulphite pulping operation to ethanol offers a number of advantages over conventional disposal options. The amount of material which must be disposed of is reduced while, at the same time, salable and environmentally friendly fuel-ethanol is produced. In this study, primary clarifier sludge (PCS) was shown to be hydrolysed to produce fermentable sugars at a rate proportional to enzyme loading. Initial (1 hour) hydrolysis rates ashigh as 12.6 g reducing sugar/L.h were observed at an initial enzyme loading of 10 filter paper units (FPU)/g. Hydrolysis was inhibited by spent sulphite liquor (SSL), an inhibition which could be completely overcome by fermenting the SSL to remove sugars. Surfactants were foundto only marginally improve the production of sugars. To reduce the deleterious effects of end product inhibition, single stage simultaneoushydrolysis and fermentation (SHF) was carried out using cellulase enzymes and Saccharomyces cerevisiae.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 12:49:29