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Titolo:
Strategy for minimization of excess sludge production from the activated sludge process
Autore:
Liu, Y; Tay, JH;
Indirizzi:
Nanyang Technol Univ, Sch Civil & Struct Engn, Environm Engn Res Ctr, Singapore 639798, Singapore Nanyang Technol Univ Singapore Singapore 639798 gapore 639798, Singapore
Titolo Testata:
BIOTECHNOLOGY ADVANCES
fascicolo: 2, volume: 19, anno: 2001,
pagine: 97 - 107
SICI:
0734-9750(200104)19:2<97:SFMOES>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUFFICIENT CONTINUOUS-CULTURE; BIOMASS PRODUCTION; DISSOLVED-OXYGEN; GROWTH; BACTERIA; MEMBRANE; SYSTEM; MODEL; BIODEGRADATION; UNCOUPLERS;
Keywords:
activated sludge process; excess sludge; sludge minimization;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
57
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, Y Nanyang Technol Univ, Sch Civil & Struct Engn, Environm Engn Res Ctr, 50 Nanyang Ave, Singapore 639798, Singapore Nanyang Technol Univ 50 Nanyang Ave Singapore Singapore 639798 ore
Citazione:
Y. Liu e J.H. Tay, "Strategy for minimization of excess sludge production from the activated sludge process", BIOTECH ADV, 19(2), 2001, pp. 97-107

Abstract

Increased attention has been given to minimization of sludge production from activated sludge process since environmental regulations are being more and more stringent in relation to excess sludge disposal. In a biological process, the more organic carbon utilized in carbon dioxide production, the fewer sludge produced, and vice versa. This paper, therefore, reviews strategies developed for minimization of excess sludge production, such as oxic-settling-anaerobic process, high dissolved oxygen process, uncoupler-containing activated sludge process, ozonation-combined activated sludge process,control of sludge retention time and biodegradation of sludge in membrane-assisted reactor. In these modified activated sludge processes, excess sludge production can be reduced by 20-100% without significant effect on process efficiency and stability. It is expected that this paper would be helpful for researchers and engineers to develop novel and efficient operation strategy to minimize sludge production from biological systems. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/05/20 alle ore 09:34:20