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Titolo:
Mechanical pretreatment of waste activated sludge for anaerobic digestion process
Autore:
Nah, IW; Kang, YW; Hwang, KY; Song, WK;
Indirizzi:
Korea Inst Sci & Technol, Div Environm & CFC Technol, Seoul, South Korea Korea Inst Sci & Technol Seoul South Korea Technol, Seoul, South Korea
Titolo Testata:
WATER RESEARCH
fascicolo: 8, volume: 34, anno: 2000,
pagine: 2362 - 2368
SICI:
0043-1354(200006)34:8<2362:MPOWAS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Keywords:
mechanical pretreatment; anaerobic digestion; waste activated sludge; sludge solubilization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Nah, IW Korea Inst Sci & Technol, Div Environm & CFC Technol, POB 131, Seoul, South Korea Korea Inst Sci & Technol POB 131 Seoul South Korea , South Korea
Citazione:
I.W. Nah et al., "Mechanical pretreatment of waste activated sludge for anaerobic digestion process", WATER RES, 34(8), 2000, pp. 2362-2368

Abstract

This research investigated the effect of mechanical pretreatment of waste activated sludge (WAS) to a pilot scale (2000 1) anaerobic digestion process. Mechanical pretreatment of WAS by jetting and colliding to a collision-plate at 30 bar made the sludge solubilized, as examining some parameters before and after mechanical pretreatment of waste-activated sludge; for example, Suspended Solid (SS), Soluble Chemical Oxygen Demand (SCOD), Soluble Total Organic Carbon (STOC), particle size, protein. ammonia-nitrogen (NH3-N), total phosphorus (T-P), and alkalinity. This research showed that solubilization of WAS is effective to the digester performance through measuring the unit gas production, volatile fatty acids (VFA), pH, and volatile mass reduction efficiency. WAS pretreatment allowed a decrease in the digester SRT from 13 to 6 days, without major effects on process efficiency and on effluent quality. It enhanced volatile mass reduction and unit gas production. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 08:24:16