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

Liu, Ting; Chen, Zhonglin; Yu, Wenzheng; You, Shijie

doi:10.1016/j.watres.2010.12.023

Cited by 229 publications

(74 citation statements)

References 46 publications

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“…Liu et al [14] found that SO 4 ÀÅ destroyed the particular functional groups of fluorescing substances in sludge EPS and caused cleavage of linkages in the polymeric backbone, releasing bound water in EPS and cells and thus improving the sludge dewatering. Furthermore, Liu et al [35] found that protein-like substances in EPS contributed to the filtration resistance of membrane in MBRs.…”

Section: Eem Fluorescence Analysismentioning

confidence: 99%

Enhancing the sludge dewaterability by electrolysis/electrocoagulation combined with zero-valent iron activated persulfate process

Yuan

et al. 2016

Chemical Engineering Journal

216

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Section: Eem Fluorescence Analysismentioning

confidence: 99%

Enhancing the sludge dewaterability by electrolysis/electrocoagulation combined with zero-valent iron activated persulfate process

Yuan

et al. 2016

Chemical Engineering Journal

216

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“…Compared with the influent, almost all peaks of subsequent DOM samples were red-shifted (2-6 nm) and/or blue-shifted (2-6 nm) in a different degree. The red-shift and/or blue-shift of fluorescence peaks with proteins and humic substances implied the difference of compound structure in the DOM samples [44,45].…”

Section: Eem Fluorescence Spectra Analysismentioning

confidence: 99%

Characterization of dissolved organic matter in a dynamic membrane bioreactor for wastewater treatment

Zhang

Chu

et al. 2013

Chin. Sci. Bull.

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This paper systematically examined the characteristics of dissolved organic matter (DOM) in a dynamic membrane bioreactor (DMBR) for municipal wastewater with a laboratory-scale continuous-flow device. Experimental results showed that the system performed excellent pollutants' removal efficiencies. The increase of trans-membrane pressure (TMP) for the dynamic membrane (DM) could be divided into three stages, i.e., zero increase stage, slow increase stage and abrupt rise stage. The maximal fouling rate of the DM reached to 4.34 kPa/h in abrupt rise stage. It was observed that the polysaccharides (PS) concentration of DOM samples gradually increased from the anaerobic zone to the aerobic zone in sequence, but the proteins (PN) concentration performed an opposite trend. The DM could retain a small part of the large molecular substances (>10 kDa) in the aerobic zone. Two particular fluorescence peaks appeared in the anaerobic zone and in the anoxic zone were also found in the effluent, which illustrated the dynamic cake layer closed to the stainless steel mesh might induce an anaerobic/anoxic micro environment. Based on the three-dimensional excitation-emission matrix (EEM) fluorescence spectroscopy analysis, aromatic proteins, aromatic proteinlike substance, fulvic acid-like substances and soluble microbial by-product-like materials could be biodegraded effectively in the DMBR, and the DM could partly remove the humic acid-like substances and soluble microbial by-product-like materials.

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“…This suggested that organic matters became more humified after treatment. Additionally, Liu et al [34] extended 3DEEM technique into reflect the cause of biofilm pollution and the capture efficiency of biofilm, and further showed that protein-like and humic-like matters were the main fluorescent signals to cause biofilm pollution. Besides, the intensities could characterize the capture efficiency of film.…”

Section: Application In Wastewater Treatmentsmentioning

confidence: 99%

Advances in dissolved organic matter in waters based on three-dimensional fluorescence spectrometry

Liu¹,

Wu²,

Deng³

et al. 2015

Proceedings of the 2015 International Forum on Energy, Environment Science and Materials

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Dissolved organic matter (DOM) is a kind of dissolved materials containing humic-like, protein-like and carbohydrates, which distributed widely in various kinds of water body. Due to the complex components, it is hard to analyze fully specific organic fraction. Due to three dimensional excitation-emission fluorescence (3DEEM) technique with the merits of high sensitivity, high selectivity, simple operation, and non-destructive and less sample, it has become one reliable method to study DOM. This study gave a brief introduction for 3DEEM technique, and reviewed from the characterization of DOM and the relationship between DOM and heavy meta ls. Additionally, we also summarized the application of 3DEEM in DOM from natural water environment and wastewater treatment to provide the theoretical basis and technical support for geochemical cycling of pollutants and water environmental protection and control.

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

Cited by 229 publications

References 46 publications

Enhancing the sludge dewaterability by electrolysis/electrocoagulation combined with zero-valent iron activated persulfate process

Enhancing the sludge dewaterability by electrolysis/electrocoagulation combined with zero-valent iron activated persulfate process

Characterization of dissolved organic matter in a dynamic membrane bioreactor for wastewater treatment

Advances in dissolved organic matter in waters based on three-dimensional fluorescence spectrometry

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