封面图片
2020年, 第14卷 第2期
Dissolved organic matter (DOM) is inextricably connected to the physical processes, chemical reactions, and biological activities of membrane bioreactor (MBR) systems. Monitoring DOM characteristics would provide extensive implications for understanding and optimization of MBRs. To this end, the excitation-emission matrix (EEM) fluorescence spectroscopy has emerged as a potentially rapid, convenient, sensitive, and informative tool for DOM characterization. Herein, this review systematically introduces the recent progress in applying EEM to MBR studies, covering the aspects of: (a) the spectroscopic principles, experimental measurement methods, and data handling techniques of EEM; (b) the molecular information extractable from EEM in terms of fluorescence peak location/intensity, wavelength regional distribution, and spectral decomposition; (c) novel fluorescent indicators such as quantum yield, Stokes shift, excited energy state, and fluorescence lifetime; and (d) how the EEM information/indicators can be used to reflect the chemical compositions, physiochemical properties, biological activities, membrane retention/fouling behaviors, and migration/transformation fates of DOM in MBRs. The future development of EEM for DOM monitoring is also critically discussed.[展开] ...
ISSN 2095-2201N (Print)
ISSN 2095-221X (Online)
CN 10-1013/X
Postal Subscription Code 80-973
原刊名 Frontiers of Environmental Science & Engineering in China 2018 Impact Factor: 3.883