Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/13350
ชื่อเรื่อง: Effects of hydraulic retention time and carbon to nitrogen ratio on micro-pollutant biodegradation in membrane bioreactor for leachate treatment
ผู้แต่ง: Boonnorat J.
Techkarnjanaruk S.
Honda R.
Prachanurak P.
Keywords: Bacteria
Bioconversion
Bioreactors
Carbon
Enzyme activity
Enzymes
Esters
Leachate treatment
Nitrification
Phenols
Pollution
Potassium compounds
Rate constants
C/N ratio
Hydraulic retention time
Leachates
Membrane bio reactor (MBR)
Micropollutants
Biodegradation
2,6 di tert butylphenol
4,4' isopropylidenediphenol
carbamazepine
carbon
diclofenac
diethyltoluamide
dioxygenase
endocrine disruptor
esterase
laccase
nitrogen
oxygenase
pesticide
phenol derivative
phenol hydroxylase
phthalate dioxygenase
phthalic acid
unclassified drug
artificial membrane
carbon
nitrogen
sewage
water pollutant
bacterium
biodegradation
bioreactor
carbon isotope
enzyme activity
experimental study
growth rate
isotopic ratio
leachate
microbial activity
nitrogen isotope
pollutant
waste treatment
water retention
ammonia oxidizing bacterium
Article
biodegradation
hydraulic retention time
leaching
membrane reactor
microbial community
nitrifying bacterium
nonhuman
pollutant
priority journal
sludge
time
artificial membrane
bacterium
bioreactor
bioremediation
denaturing gradient gel electrophoresis
heterotrophy
isolation and purification
kinetics
metabolism
microbiology
nitrification
polyacrylamide gel electrophoresis
polymerase chain reaction
real time polymerase chain reaction
sewage
time factor
water pollutant
Bacteria (microorganisms)
Nitrosomonadales
Bacteria
Biodegradation, Environmental
Bioreactors
Carbon
Denaturing Gradient Gel Electrophoresis
Electrophoresis, Polyacrylamide Gel
Heterotrophic Processes
Kinetics
Membranes, Artificial
Nitrification
Nitrogen
Polymerase Chain Reaction
Real-Time Polymerase Chain Reaction
Sewage
Time Factors
Water Pollutants, Chemical
วันที่เผยแพร่: 2016
บทคัดย่อ: This research investigated the biodegradation of the micro-pollutants in leachate by the membrane bioreactor (MBR) system under six treatment conditions, comprising two C/N ratios (6, 10) and three hydraulic retention time (HRT) durations (6, 12, 24 h). The experimental results indicated that the C/N 6 environment was more advantageous to the bacterial growth. The bacterial communities residing in the sludge were those of heterotrophic bacteria (HB), heterotrophic nitrifying bacteria (HNB) and ammonia oxidizing bacteria (AOB). It was found that HB and HNB produced phenol hydroxylase (PH), esterase (EST), phthalate dioxygenase (PDO) and laccase (LAC) and also enhanced the biodegradation rate constants (k) in the system. At the same time, AOB promoted the production of HB and HNB. The findings also revealed that the 12 h HRT was the optimal condition with regard to the highest growth of the bacteria responsible for the biodegradation of phenols and phthalates. Meanwhile, the longer HRT duration (i.e. 24 h) was required to effectively bio-degrade carbamazepine (CBZ), N,N-diethyl-m-toluamide (DEET) and diclofenac (DCF). © 2016 Elsevier Ltd
URI: https://ir.swu.ac.th/jspui/handle/123456789/13350
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979774564&doi=10.1016%2fj.biortech.2016.07.094&partnerID=40&md5=7518d7228abf73bbf73c1bdd1cc68fb5
ISSN: 9608524
Appears in Collections:Scopus 1983-2021

Files in This Item:
There are no files associated with this item.


Items in SWU repository are protected by copyright, with all rights reserved, unless otherwise indicated.