Characterization of organic membrane foulants in a submerged membrane bioreactor with pre-ozonation using three-dimensional excitation–emission matrix fluorescence spectroscopy

2011 ◽  
Vol 45 (5) ◽  
pp. 2111-2121 ◽  
Author(s):  
Ting Liu ◽  
Zhong-lin Chen ◽  
Wen-zheng Yu ◽  
Shi-jie You
Keyword(s):  
Fluorescence Spectroscopy ◽  
Membrane Bioreactor ◽  
Three Dimensional ◽  
Submerged Membrane Bioreactor ◽  
Excitation Emission Matrix

Three dimensional excitation-emission matrix fluorescence spectroscopy of typical Japanese soil powders

2020 ◽  
Vol 233 ◽  
pp. 118188
Author(s):  
Yuki Nakaya ◽  
Satoru Nakashima ◽  
Mihoko Moriizumi ◽  
Masahiro Oguchi ◽  
Shinsuke Kashiwagi ◽  
...  
Keyword(s):  
Fluorescence Spectroscopy ◽  
Three Dimensional ◽  
Excitation Emission Matrix

Characterization of coal oil using three-dimensional excitation and emission matrix fluorescence spectroscopy

2009 ◽  
Vol 7 (1) ◽  
pp. 85-87 ◽  
Author(s):  
肖雪 Xue Xiao ◽  
张玉钧 Yujun Zhang ◽  
王志刚 Zhigang Wang ◽  
金丹 Dan Jin ◽  
殷高方 Gaofang Yin ◽  
...  
Keyword(s):  
Fluorescence Spectroscopy ◽  
Three Dimensional ◽  
Excitation And Emission Matrix

Three-dimensional excitation emission matrix fluorescence spectroscopy and gel-permeating chromatography to characterize extracellular polymeric substances in aerobic granulation

2010 ◽  
Vol 61 (11) ◽  
pp. 2931-2942 ◽  
Author(s):  
Huacheng Xu ◽  
Pinjing He ◽  
Guanzhao Wang ◽  
Liming Shao
Keyword(s):  
Molecular Weight ◽  
Fluorescence Spectroscopy ◽  
Extracellular Polymeric Substances ◽  
Operating Time ◽  
Three Dimensional ◽  
Aerobic Granules ◽  
Aerobic Granulation ◽  
Excitation Emission Matrix ◽  
Two Peaks ◽  
Eem Fluorescence

Three-dimensional excitation emission matrix (EEM) fluorescence spectroscopy and gel-permeating chromatography (GPC) were employed to characterize the extracellular polymeric substances (EPS) in aerobic granulation. EPS matrix in this study was stratified into four fractions: (1) supernatant, (2) slime, (3) loosely bound EPS (LB-EPS), and (4) tightly bound EPS (TB-EPS). The results showed that the dissolved organic carbon was mainly distributed in TB-EPS fraction, and increased with increasing the operating time. The supernatant, slime, and LB-EPS fractions exhibited four fluorescence peaks, an autochthonous signature, unimodal MW distribution and lower molecular weight (MW) (3 < log [MW]<5), whereas the TB-EPS fraction only had two peaks, an allochthonous signature, multiple peaks and higher MW (5 < log [MW]<7). It was deemed that the formation of aerobic granules was correlated with the accumulation of proteins in the TB-EPS fraction. EEM spectroscopy and GPC profiles could be used as appropriate and effective methods to characterize the EPS in aerobic granulation from a micro-view level.

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