PMID- 15515937
OWN - NLM
STAT- MEDLINE
DCOM- 20061205
LR  - 20161018
IS  - 0250-3301 (Print)
IS  - 0250-3301 (Linking)
VI  - 25
IP  - 4
DP  - 2004 Jul
TI  - [Enhancing resistance of a conventional activated sludge system against shock 
      loading of 2,4-DCP through bioaugmentation with special culture].
PG  - 59-64
AB  - In this study, conventional activated sludge (CAS) systems, which were generally 
      used to treat municipal wastewater, were modeled to receive intermittent 
      2,4-dichlorophenol (2,4-DCP) shock loadings. The response and stability of the 
      CAS system augmented with special culture and the non-bioaugmented control CAS 
      system under shock loading conditions were compared. The capability of the 
      bioaugmented CAS systems to degrade 2,4-DCP under long-term continuous operation 
      was investigated. Results showed that for the CAS systems with 5% and 15% special 
      culture addition, their degradation of the target pollutants and resistance 
      against shock loadings was enhanced significantly. When 2,4-DCP shock loading 
      occurred within the first 30 days after single inoculation, the bioaugmented CAS 
      systems maintained high degradation ability to the target pollutants. After 70 
      days continuous operation without 2,4-DCP in feed, when the CAS systems 
      challenged 2,4-DCP again, the effect of bioaugmentation was greatly reduced and 
      the CAS system failed to remove the pollutants and maintain the system stability 
      effectively. Therefore, re-supplementation was needed for further treatment of 
      2,4-DCP.
FAU - Quan, Xiang-chun
AU  - Quan XC
AD  - State Key Joint Laboratory of Environment Simulation and Pollution Control, 
      School of Environment, Beijing Normal University, Beijing 100875, China.
FAU - Shi, Han-chang
AU  - Shi HC
FAU - Lu, Ping-ping
AU  - Lu PP
FAU - Wang, Jian-long
AU  - Wang JL
FAU - Qian, Yi
AU  - Qian Y
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 (Chlorophenols)
RN  - 0 (Sewage)
RN  - 0 (sulfonated 2,4-dichlorophenol)
SB  - IM
MH  - Bacteria, Anaerobic/*metabolism
MH  - Biodegradation, Environmental
MH  - Chlorophenols/*metabolism
MH  - Sewage/*analysis
MH  - Waste Disposal, Fluid/*methods
EDAT- 2004/11/02 09:00
MHDA- 2006/12/09 09:00
CRDT- 2004/11/02 09:00
PHST- 2004/11/02 09:00 [pubmed]
PHST- 2006/12/09 09:00 [medline]
PHST- 2004/11/02 09:00 [entrez]
PST - ppublish
SO  - Huan Jing Ke Xue. 2004 Jul;25(4):59-64.