PMID- 17091347
OWN - NLM
STAT- MEDLINE
DCOM- 20070830
LR  - 20121115
IS  - 0923-9820 (Print)
IS  - 0923-9820 (Linking)
VI  - 18
IP  - 4
DP  - 2007 Aug
TI  - Modeling chlorophenols degradation in sequencing batch reactors with 
      instantaneous feed-effect of 2,4-DCP presence on 4-CP degradation kinetics.
PG  - 427-37
AB  - Two instantaneously fed sequencing batch reactors (SBRs), one receiving 
      4-chlorophenol (4-CP) (SBR4) only and one receiving mixture of 4-CP and 
      2,4-dichlorophenol (2,4-DCP) (SBRM), were operated with increasing chlorophenols 
      concentrations in the feed. Complete degradation of chlorophenols and 
      high-Chemical oxygen demand (COD) removal efficiencies were observed throughout 
      the reactors operation. Only a fraction of biomass (competent biomass) was 
      thought to be responsible for the degradation of chlorophenols due to required 
      unique metabolic pathways. Haldane model developed based on competent biomass 
      concentration fitted reasonably well to the experimental data at different feed 
      chlorophenols concentrations. The presence of 2,4-DCP competitively inhibited 
      4-CP degradation and its degradation began only after complete removal of 
      2,4-DCP. Based on the experimental results, the 4-CP degrader's fraction in SBRM 
      was estimated to be higher than that in SBR4 since 2,4-DCP degraders were also 
      capable of degrading 4-CP due to similarity in the degradation pathways of both 
      compounds.
FAU - Sahinkaya, Erkan
AU  - Sahinkaya E
AD  - Environmental Engineering Department, Middle East Technical University, 06531 
      Ankara, Turkey.
FAU - Dilek, Filiz B
AU  - Dilek FB
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20061108
PL  - Netherlands
TA  - Biodegradation
JT  - Biodegradation
JID - 9100834
RN  - 0 (Chlorophenols)
RN  - 0 (Fatty Acids, Unsaturated)
RN  - 3270-98-2 (hydroxymuconic semialdehyde)
RN  - 3DLC36A01X (4-chlorophenol)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Chlorophenols/*chemistry
MH  - Fatty Acids, Unsaturated/chemistry
MH  - Kinetics
MH  - *Models, Chemical
EDAT- 2006/11/09 09:00
MHDA- 2007/08/31 09:00
CRDT- 2006/11/09 09:00
PHST- 2005/12/15 00:00 [received]
PHST- 2006/08/08 00:00 [accepted]
PHST- 2006/11/09 09:00 [pubmed]
PHST- 2007/08/31 09:00 [medline]
PHST- 2006/11/09 09:00 [entrez]
AID - 10.1007/s10532-006-9077-3 [doi]
PST - ppublish
SO  - Biodegradation. 2007 Aug;18(4):427-37. doi: 10.1007/s10532-006-9077-3. Epub 2006 
      Nov 8.