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Development and characterization of the 2,4,6-trichlorophenol (2,4,6-TCP) aerobic degrading granules in sequencing batch airlift reactor

Miao,M-S, Zhang,Y-J, Shu,L, Zhang,J, Kong,Q and Li,N 2014, Development and characterization of the 2,4,6-trichlorophenol (2,4,6-TCP) aerobic degrading granules in sequencing batch airlift reactor, International biodeterioration and biodegradation, vol. 95, Part A, pp. 61-66, doi: 10.1016/j.ibiod.2014.03.019.

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Title Development and characterization of the 2,4,6-trichlorophenol (2,4,6-TCP) aerobic degrading granules in sequencing batch airlift reactor
Author(s) Miao,M-S
Zhang,Y-J
Shu,L
Zhang,J
Kong,Q
Li,N
Journal name International biodeterioration and biodegradation
Volume number 95
Season Part A
Start page 61
End page 66
Publisher Elsevier
Place of publication London, England
Publication date 2014-11-01
ISSN 0964-8305
1879-0208
Keyword(s) 2,4,6-Trichlorophenol
Aerobic granules
Degradation
Excitation emission matrix (EEM)
Extracellular polymeric substance (EPS)
Summary 2,4,6-trichlorophenol (2,4,6-TCP) aerobic degrading granules were successfully developed in the sequencing batch airlift reactor. The key strategy used in cultivation of the granules was dosing glucose and acetate as co-substrates. After granulation, average concentrations of 2,4,6-TCP and COD in the effluent were less than 8mgL-1 and 59mgL-1, respectively. The removal efficiencies of 2,4,6-TCP and COD were above 93% and 90%, respectively. The specific degradation rate of 2,4,6-TCP peaked at 61mg 2,4,6-TCP gVSS-1h-1 when inoculated at the concentration of 400mgL-1. The extracellular polymeric substance (EPS) contents of the 2,4,6-TCP aerobic degrading granules were decreased compared with the contents in seed sludge. Two peaks attributed to the protein-like fluorophores were identified by three-dimensional excitation emission matrix (EEM) fluorescence spectra. The decrease of fluorescence parameters, e.g., peak locations, intensities, indicated quenching effect of 2,4,6-TCP on the EPS fluorescence. Meanwhile, the shift of peak position indicated chemical changes of the EPS.
Language eng
DOI 10.1016/j.ibiod.2014.03.019
Field of Research 090499 Chemical Engineering not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069512

Document type: Journal Article
Collection: School of Engineering
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