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Titolo:
VOLATILE SOLIDS REDUCTION IN 2-PHASE AND CONVENTIONAL ANAEROBIC SLUDGE-DIGESTION
Autore:
BHATTACHARYA SK; MADURA RL; WALLING DA; FARRELL JB;
Indirizzi:
TULANE UNIV,DEPT CIVIL & ENVIRONM ENGN NEW ORLEANS LA 70118
Titolo Testata:
Water research
fascicolo: 5, volume: 30, anno: 1996,
pagine: 1041 - 1048
SICI:
0043-1354(1996)30:5<1041:VSRI2A>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
WASTE-WATER; HYDROGEN;
Keywords:
ANAEROBIC; DIGESTION; PRIMARY SLUDGE; 2-PHASE; WASTE ACTIVATED SLUDGE; VOLATILE ACIDS; VOLATILE SOLIDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
S.K. Bhattacharya et al., "VOLATILE SOLIDS REDUCTION IN 2-PHASE AND CONVENTIONAL ANAEROBIC SLUDGE-DIGESTION", Water research, 30(5), 1996, pp. 1041-1048

Abstract

Success of two-phase anaerobic systems for primary and secondary sludge treatment has been reported based on both directly and indirectly measured volatile solids (VS) reduction, total gas and methane generation, COD reduction, etc. The objective of this research was to determine whether phase separation increases directly measured VS reduction compared to conventional anaerobic sludge digestion. Two-phase and conventional digesters were operated with sludge feeds from three sources; both 1:1 sludges (primary:waste activated, solids basis) and 100% waste activated sludges (WAS) were studied. The maximum difference betweenVS reductions in conventional and two-phase systems was about 8.7% with waste activated sludge. The increase in volatile solids reduction in two-phase systems with the 1:1 sludge ranged from 1.9 to 6.0% as compared to conventional systems. This relatively small increase in VS reduction may not be worth the additional cost of operating two-phase digesters at full scale. Copyright (C) 1996 Published by Elsevier Science Ltd.

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Documento generato il 24/09/20 alle ore 10:23:29