PMID- 11575090
OWN - NLM
STAT- MEDLINE
DCOM- 20020318
LR  - 20131121
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 44
IP  - 4
DP  - 2001
TI  - Domestic sewage treatment in a pilot system composed of UASB and SBR reactors.
PG  - 247-53
AB  - The results obtained from the operation of a treatment system composed of an 
      anaerobic (up-flow sludge blanket-UASB) reactor followed by an aerobic 
      (sequencing batch-SBR) reactor treating domestic sewage are presented and 
      discussed. The pilot plant was monitored during 6 months, aiming to obtain 
      performance data on organic matter, nitrogen and phosphate removal under 
      different operating conditions. The UASB reactor was operated at a constant 
      hydraulic detention time (0) of 6 h while the SBR performance was monitored in 
      four different duration cycles (24, 12, 6 and 4 h) corresponding to aeration 
      times (AT) of 22, 10, 4 and 2 h, respectively. COD and TSS overall removal 
      efficiencies (Eo) up to 91% and 84%, respectively, were achieved independently on 
      the aeration time applied to the SBR. In respect to nitrification and phosphate 
      removal, AT was found to be a determining operating parameter. TKN removal of 
      approximately 90% was achieved for AT equal to or higher than 10 h; complete 
      nitrification occurred for AT higher than 4 h; significant phosphate removal 
      (72%) occurred only at the AT of 2 h. It was not possible to achieve simultaneous 
      efficient removal of nitrogen and phosphate, under the operating conditions 
      imposed on the treatment system.
FAU - Torres, P
AU  - Torres P
AD  - Seccion Saneamiento Ambiental, Departamento de Procesos Quimicos y Biologicos, 
      Universidad del Valle, AA 25360 Cali-Colombia.
FAU - Foresti, E
AU  - Foresti E
LA  - eng
PT  - Journal Article
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Phosphates)
RN  - 0 (Sewage)
RN  - N762921K75 (Nitrogen)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Bacteria, Aerobic/physiology
MH  - Bacteria, Anaerobic/physiology
MH  - Bioreactors
MH  - Facility Design and Construction
MH  - Nitrogen/metabolism
MH  - Oxygen/metabolism
MH  - Phosphates/metabolism
MH  - *Sewage
MH  - Waste Disposal, Fluid/*methods
EDAT- 2001/09/29 10:00
MHDA- 2002/03/19 10:01
CRDT- 2001/09/29 10:00
PHST- 2001/09/29 10:00 [pubmed]
PHST- 2002/03/19 10:01 [medline]
PHST- 2001/09/29 10:00 [entrez]
PST - ppublish
SO  - Water Sci Technol. 2001;44(4):247-53.