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Characterization of extracellular polymeric substances of aerobic and anaerobic sludge using three-dimensional excitation and emission matrix fluorescence spectroscopy

Sheng, Guo-Ping ; Yu, Han-Qing

Water research (Oxford), 2006-03, Vol.40 (6), p.1233-1239 [Periódico revisado por pares]

Oxford: Elsevier Ltd

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Título:
Characterization of extracellular polymeric substances of aerobic and anaerobic sludge using three-dimensional excitation and emission matrix fluorescence spectroscopy
Autor: Sheng, Guo-Ping ; Yu, Han-Qing
Assuntos: aerobic conditions ; Aerobiosis ; anaerobic conditions ; Anaerobiosis ; Applied sciences ; Biological and medical sciences ; Biological treatment of waters ; Biotechnology ; chemical structure ; Environment and pollution ; Exact sciences and technology ; excitation-emission matrix fluorescence spectroscopy ; Excitation–emission matrix (EEM) fluorescence spectroscopy ; extracellular matrix ; extracellular polymeric substances ; Extracellular polymeric substances (EPS) ; fluorescence ; fluorescence emission spectroscopy ; Fundamental and applied biological sciences. Psychology ; General purification processes ; Humic substances ; Hydrogen-Ion Concentration ; Industrial applications and implications. Economical aspects ; ionic strength ; Osmolar Concentration ; Pollution ; polymers ; Polymers - chemistry ; Proteins ; Sewage - chemistry ; sewage sludge ; Sludge ; Spectrometry, Fluorescence - methods ; wastewater treatment ; Wastewaters ; Water treatment and pollution
É parte de: Water research (Oxford), 2006-03, Vol.40 (6), p.1233-1239
Notas: http://dx.doi.org/10.1016/j.watres.2006.01.023
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Descrição: In this study three-dimensional excitation–emission matrix (EEM) fluorescence spectroscopy was applied to characterize the extracellular polymeric substances (EPS) extracted from aerobic and anaerobic sludge in wastewater treatment. Three fluorescence peaks were identified in EEM fluorescence spectra of the EPS samples. Two peaks were attributed to the protein-like fluorophores, and the third to the humic-like fluorophores. The effects of both pH and EPS concentration were significant on EEM fluorescence spectra of EPS, but the ionic strength had no substantial effect on EEM spectra of the EPS. The differences in the EPS fluorescence parameters, e.g., peak locations, intensities and ratios of various peak intensities, indicate the difference in the chemical structures of the EPS from various origins. EEM spectroscopy was proven to be an appropriate and effective method to characterize the EPS from various origins in wastewater treatment systems.
Editor: Oxford: Elsevier Ltd
Idioma: Inglês

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Characterization of extracellular polymeric substances of aerobic and anaerobic sludge using three-dimensional excitation and emission matrix fluorescence spectroscopy

Sheng, Guo-Ping ; Yu, Han-Qing

Oxford: Elsevier Ltd

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