PMID- 21250472
OWN - NLM
STAT- MEDLINE
DCOM- 20110811
LR  - 20161018
IS  - 0250-3301 (Print)
IS  - 0250-3301 (Linking)
VI  - 31
IP  - 11
DP  - 2010 Nov
TI  - [Effects of carbon sources changes on the property and morphology of 2,4-D 
      degraded aerobic sludge granules].
PG  - 2824-8
AB  - This study investigated the changes of the morphology, structure, and capability 
      of removing the target contamination of the aerobic granules pre-cultured with 
      mixed substrates of glucose and 2,4-dichlorophenoxyacetic acid (2,4-D) in a 
      long-time running sequence batch reactor (SBR), when the carbon source 
      transformed into the sole carbon source of 2,4-D. Results showed that when the 
      substrate turned to the sole carbon source of 2,4-D, the aerobic granules still 
      maintained a strong degradation ability to the target contamination; a 2,4-D 
      removal percentage of 99.2% -100% and an average COD removal rate of 85.6% were 
      achieved at the initial 2,4-D concentration of 361-564 mg/L. Carbon source 
      transformation caused certain damages to the original aerobic granule structure, 
      made some parts of granules disintegrated, and led to granule size decline from 
      513 microm to 302 microm. However, those granules maintained the main body, 
      re-aggregated and grew after a period of adaptation due to their strong 
      resistance to toxicity. Aerobic granules capable of utilizing 2,4-D as the sole 
      carbon source with a good settling ability (SYI 20-40 mL/g) and a mean diameter 
      of 489 microm were finally obtained in this study. Scanning electron microscope 
      (SEM) observation showed that the diversity of granule microbial species was 
      declined when turned to the sole carbon source.
FAU - Ma, Jing-Yun
AU  - Ma JY
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China. majingyun8996@126.com
FAU - Quan, Xian-Chun
AU  - Quan XC
FAU - Xiong, Wei-Cong
AU  - Xiong WC
LA  - chi
PT  - English Abstract
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - China
TA  - Huan Jing Ke Xue
JT  - Huan jing ke xue= Huanjing kexue
JID - 8405344
RN  - 0 (Environmental Pollutants)
RN  - 0 (Sewage)
RN  - 2577AQ9262 (2,4-Dichlorophenoxyacetic Acid)
RN  - 7440-44-0 (Carbon)
RN  - IY9XDZ35W2 (Glucose)
SB  - IM
MH  - 2,4-Dichlorophenoxyacetic Acid/chemistry/*isolation & purification
MH  - Aerobiosis
MH  - Biodegradation, Environmental
MH  - Bioreactors
MH  - Carbon/*chemistry
MH  - Environmental Pollutants/chemistry/*isolation & purification
MH  - Glucose/chemistry
MH  - Particle Size
MH  - Sewage/*chemistry
EDAT- 2011/01/22 06:00
MHDA- 2011/08/13 06:00
CRDT- 2011/01/22 06:00
PHST- 2011/01/22 06:00 [entrez]
PHST- 2011/01/22 06:00 [pubmed]
PHST- 2011/08/13 06:00 [medline]
PST - ppublish
SO  - Huan Jing Ke Xue. 2010 Nov;31(11):2824-8.