PMID- 15501672
OWN - NLM
STAT- MEDLINE
DCOM- 20050329
LR  - 20131121
IS  - 0960-8524 (Print)
IS  - 0960-8524 (Linking)
VI  - 96
IP  - 5
DP  - 2005 Mar
TI  - Effects of alkalinity and co-substrate on the performance of an upflow anaerobic 
      sludge blanket (UASB) reactor through decolorization of Congo Red azo dye.
PG  - 633-43
AB  - The effect of substrate (glucose) concentrations and alkalinitiy (NaHCO3) on the 
      decolorization of a synthetic wastewater containing Congo Red (CR) azo dye was 
      performed in an upflow anaerobic sludge blanket (UASB). Color removal 
      efficiencies approaching 100% were obtained at glucose-COD concentrations varying 
      between 0 and 3000 mg/l. The methane production rate and total aromatic amine 
      (TAA) removal efficiencies were found to be 120 ml per day and 43%, respectively, 
      while the color was completely removed during glucose-COD free operation of the 
      UASB reactor. The complete decolorization of CR dye under co-substrate free 
      operation could be attributed to TAA metabolism which may provide the electrons 
      required for the cleavage of azo bond in CR dye exist in the UASB reactor. No 
      significant differences in pH levels (6.6-7.4), methane production rates 
      (2000-2700 ml/day) and COD removal efficiencies (82-90%) were obtained for NAHCO3 
      concentrations ranging between 550 and 3000 mg/l. However, decolorization 
      efficiency remained at 100% with decreasing NaHCO3 concentrations as low as 250 
      mg/l in the feed. An alkalinity/COD ratio of 0.163 in the feed was suggested for 
      simultaneous optimum COD and color removal.
FAU - Isik, Mustafa
AU  - Isik M
AD  - Environmental Engineering Department, Engineering Faculty, Dokuz Eylul 
      University, Buca Kaynaklar Campus, 35160, Izmir, Turkey.
FAU - Sponza, Delia Teresa
AU  - Sponza DT
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Sewage)
RN  - 0 (Water Pollutants, Chemical)
RN  - 3U05FHG59S (Congo Red)
RN  - 8MDF5V39QO (Sodium Bicarbonate)
RN  - IY9XDZ35W2 (Glucose)
RN  - OP0UW79H66 (Methane)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Bacteria, Anaerobic/*metabolism
MH  - *Bioreactors
MH  - Congo Red/chemistry/*metabolism
MH  - Glucose
MH  - Hydrogen-Ion Concentration
MH  - Methane/metabolism
MH  - Oxygen/metabolism
MH  - Sewage/*microbiology
MH  - Sodium Bicarbonate/metabolism
MH  - Spectrophotometry, Ultraviolet
MH  - Waste Disposal, Fluid/instrumentation/*methods
MH  - Water Pollutants, Chemical/*metabolism
EDAT- 2004/10/27 09:00
MHDA- 2005/03/30 09:00
CRDT- 2004/10/27 09:00
PHST- 2003/07/23 00:00 [received]
PHST- 2004/05/26 00:00 [revised]
PHST- 2004/06/01 00:00 [accepted]
PHST- 2004/10/27 09:00 [pubmed]
PHST- 2005/03/30 09:00 [medline]
PHST- 2004/10/27 09:00 [entrez]
AID - S0960-8524(04)00227-5 [pii]
AID - 10.1016/j.biortech.2004.06.004 [doi]
PST - ppublish
SO  - Bioresour Technol. 2005 Mar;96(5):633-43. doi: 10.1016/j.biortech.2004.06.004.