PMID- 22230774
OWN - NLM
STAT- MEDLINE
DCOM- 20120529
LR  - 20131121
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 107
DP  - 2012 Mar
TI  - Role and significance of extracellular polymeric substances on the property of 
      aerobic granule.
PG  - 46-54
LID - 10.1016/j.biortech.2011.12.008 [doi]
AB  - Because of the important role of extracellular polymeric substances (EPS) in 
      microbial aggregates, the relationship of the EPS and physico-chemical properties 
      of aerobic granule was studied in two sequencing airlift bioreactors (SABR) using 
      two kinds of substrates, acetate+glucose and 4-chloroaniline (4-ClA). Higher 
      amounts of the exopolymeric protein (PN) and lower polysaccharides (PS) and DNA 
      level were extracted from aerobic granules in the SABRs, and the variations in 
      the PN and PN/PS of aerobic granules were higher (770% and 360%) in the SABR 
      using 4-ClA as substrate than that in the other reactor. At the same time, 
      suitable operating parameters (surface gas velocity at about 2.4 cm s(-1) and 
      settling time at 5-10 min) favored EPS production and sludge granulation. 
      Furthermore, the minimal settling velocity, hydrophobicity, surface charge 
      increased in accordance with PN content increase, and a negative correlation 
      between the sludge volume index (SVI) and PN content was observed.
CI  - Crown Copyright (c) 2011. Published by Elsevier Ltd. All rights reserved.
FAU - Zhu, Liang
AU  - Zhu L
AD  - Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, 
      China.
FAU - Lv, Mei-le
AU  - Lv ML
FAU - Dai, Xin
AU  - Dai X
FAU - Yu, Yan-wen
AU  - Yu YW
FAU - Qi, Han-ying
AU  - Qi HY
FAU - Xu, Xiang-yang
AU  - Xu XY
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111211
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Acetates)
RN  - 0 (Aniline Compounds)
RN  - 0 (Polymers)
RN  - 0 (Sewage)
RN  - IY9XDZ35W2 (Glucose)
RN  - Z553SGH315 (4-chloroaniline)
SB  - IM
MH  - Acetates/chemistry
MH  - Aerobiosis
MH  - Aniline Compounds/chemistry
MH  - Bioreactors
MH  - Glucose/chemistry
MH  - Polymers/*chemistry
MH  - Sewage
EDAT- 2012/01/11 06:00
MHDA- 2012/05/30 06:00
CRDT- 2012/01/11 06:00
PHST- 2011/09/18 00:00 [received]
PHST- 2011/12/02 00:00 [revised]
PHST- 2011/12/05 00:00 [accepted]
PHST- 2012/01/11 06:00 [entrez]
PHST- 2012/01/11 06:00 [pubmed]
PHST- 2012/05/30 06:00 [medline]
AID - S0960-8524(11)01754-8 [pii]
AID - 10.1016/j.biortech.2011.12.008 [doi]
PST - ppublish
SO  - Bioresour Technol. 2012 Mar;107:46-54. doi: 10.1016/j.biortech.2011.12.008. Epub 
      2011 Dec 11.