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Titolo:
EFFECT OF INTERMITTENT-CYCLE EXTENDED-AERATION TREATMENT ON THE FATE OF CARBONACEOUS MATERIAL IN PIG SLURRY
Autore:
BICUDO JR; SVOBODA IF;
Indirizzi:
LAB NACL ENGN CIVIL,AV BRASIL 101 P-1799 LISBON PORTUGAL SCOTTISH AGR COLL,DEPT BIOCHEM SCI AUCHINCRUIVE KA6 5HW AYR SCOTLAND
Titolo Testata:
Bioresource technology
fascicolo: 1, volume: 54, anno: 1995,
pagine: 53 - 62
SICI:
0960-8524(1995)54:1<53:EOIETO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
PIGGERY WASTE-WATER; AEROBIC TREATMENT; DENITRIFICATION; NITRIFICATION; REMOVAL;
Keywords:
SLURRY TREATMENT; CARBON REMOVAL; INTERMITTENT AERATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
J.R. Bicudo e I.F. Svoboda, "EFFECT OF INTERMITTENT-CYCLE EXTENDED-AERATION TREATMENT ON THE FATE OF CARBONACEOUS MATERIAL IN PIG SLURRY", Bioresource technology, 54(1), 1995, pp. 53-62

Abstract

A farm-scale treatment plant was studied during a year. Four different aeration cycles were tested in order to observe their effects on theremoval of carbon material from pig slurry. The treatment plant performance was not significantly affected by a 60% reduction of aeration times, from almost 20 h per day to 12 h per day. The high removal ratesobserved (over 95% in terms of BOD5) appeared to be related to the low aeration rates achieved through the intermittent operation of the aerator. The removal of solid material was more variable. Percentage removals of total solids from the liquid were between 10 and 70%. The separator low performances may have been related to the highly diluted slurry produced on the farm. However, consistent results were obtained in terms of the dry matter content of the separated material A mean value of 21.3% was obtained, with a standard deviation of 3.5. The operating costs related to treatment were estimated on the basis of energy consumption. Treatment of slurry consumed from over 150 kWh/day for 19.5 h of aeration per day to about 90 kWh/day for 12 h aeration per day. Aerobic slurry treatment cost US$2.50 per pig produced.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 08:12:56