PMID- 18793845
OWN - NLM
STAT- MEDLINE
DCOM- 20081229
LR  - 20081112
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 100
IP  - 3
DP  - 2009 Feb
TI  - Anaerobic baffled reactor (ABR) for treating heavy oil produced water with high 
      concentrations of salt and poor nutrient.
PG  - 1108-14
LID - 10.1016/j.biortech.2008.08.015 [doi]
AB  - The start-up and operational performance (total 212 days, including the start-up 
      of 164 days) of an anaerobic baffled reactor (ABR), which is used to treat heavy 
      oil produced water, was studied without the temperature control. Inoculums were 
      mixtures of acclimated sediment taken from a heavy oil produced water treatment 
      plant and digested sludge from a sewage wastewater treatment plant. The 
      rod-shaped and spherical granules with colors of henna and black, in which 
      Clostridia, Methanosarcina and Methanothrx sp. were main populations, were 
      observed in each compartment of ABR after the reactor's successful start-up (day 
      164). Rhodopseudomonas with the activity of lipase and halotolerant, as a kind of 
      photosynthetic bacteria, was also observed in the first five compartments. X-ray 
      diffraction (XRD) showed that the spherical granule sludge was compact and 
      contained a large amount of organics, amorphous materials, and crystals of 
      Fe(2)O(3), FeS, and CaCO(3), whereas the rod-shaped granule sludge was incompact 
      without crystals of Fe(2)O(3), FeS, and CaCO(3). Scanning electron microscope 
      (SEM) showed that the skeleton construction of this rod-shaped granule was 
      filamentous bacteria and amount of extracellular polymeric substances (EPS). The 
      ABR, after successful start up, can achieve high average chemical oxygen demand 
      (COD) and oil removals of 65% and 88% for heavy oil produced water with poor 
      nutrient (COD:TN:TP, 1200:15:1) and high salt concentration (1.15-1.46%), 
      respectively. Furthermore, ABR kept stable during 2.5 times the COD level shock 
      load (0.50 kg COD m-3 d-1) for four days.
FAU - Ji, G D
AU  - Ji GD
AD  - Department of Environmental Engineering, Peking University, The Key Laboratory of 
      Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China. 
      jiguodong@iee.pku.edu.cn
FAU - Sun, T H
AU  - Sun TH
FAU - Ni, J R
AU  - Ni JR
FAU - Tong, J J
AU  - Tong JJ
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080914
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Petroleum)
RN  - 0 (Salts)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Bacteria, Anaerobic/*metabolism
MH  - Bioreactors/*microbiology
MH  - Equipment Design
MH  - Equipment Failure Analysis
MH  - *Petroleum
MH  - Salts/*chemistry
MH  - Water Pollutants, Chemical/isolation & purification/*metabolism
MH  - Water Purification/*instrumentation/methods
EDAT- 2008/09/17 09:00
MHDA- 2008/12/30 09:00
CRDT- 2008/09/17 09:00
PHST- 2008/05/06 00:00 [received]
PHST- 2008/08/02 00:00 [revised]
PHST- 2008/08/05 00:00 [accepted]
PHST- 2008/09/17 09:00 [pubmed]
PHST- 2008/12/30 09:00 [medline]
PHST- 2008/09/17 09:00 [entrez]
AID - S0960-8524(08)00689-5 [pii]
AID - 10.1016/j.biortech.2008.08.015 [doi]
PST - ppublish
SO  - Bioresour Technol. 2009 Feb;100(3):1108-14. doi: 10.1016/j.biortech.2008.08.015. 
      Epub 2008 Sep 14.