PMID- 30308896
OWN - NLM
STAT- MEDLINE
DCOM- 20181114
LR  - 20221207
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 649
DP  - 2019 Feb 1
TI  - Spectroscopic insights into photochemical transformation of effluent organic 
      matter from biological wastewater treatment plants.
PG  - 1260-1268
LID - S0048-9697(18)33349-7 [pii]
LID - 10.1016/j.scitotenv.2018.08.378 [doi]
AB  - The photodegradation of discharged effluent organic matter (EfOM) changes its 
      composition and shifts its impacts on pollutant migration and transformation in 
      receiving waters. However, to date, EfOM photodegradation processes are not well 
      understood due to the complexity and heterogeneity of EfOM. Herein, the 
      spectroscopic analysis including ultra violet-visible (UV-Vis), fluorescence and 
      FTIR spectroscopies coupled with two-dimensional correlation analysis (2D-COS) 
      were used to draw a comprehensive view of EfOM photodegradation and involving 
      mechanisms. Results revealed that the photolability of each component in EfOM 
      followed the order: tannin-like > humic-like > protein-like > carbohydrate-like 
      and aliphatic compounds. The photolability of different components of EfOM were 
      found to be related to the photolability of their functional groups. 
      Specifically, the aromatic, carboxylic, phenolic and quinonoid groups associated 
      with humic or tannin-like compounds were more prone to be photodegraded than 
      amides in proteins or C-OH and C-O-C in carbohydrates. Furthermore, the 
      humic-like components, dominating the light absorption of EfOM, were found to be 
      degraded by direct photolysis. Nevertheless, the photodegradation of tannin-like 
      and protein-like components were mainly due to the indirect photodegradation by 
      ROS and (3)OM(⁎). Furthermore, results indicated that UV light, rather than 
      visible light, was responsible for the photodegradation of EfOM. The 
      spectroscopic techniques integrated with 2D-COS analysis could serve as a 
      powerful tool with which to clarify complex EfOM photodegradation process as well 
      as to improve our understanding of the fate of discharged EfOM and related 
      environmental processes.
CI  - Copyright (c) 2018. Published by Elsevier B.V.
FAU - Zhang, Xin
AU  - Zhang X
AD  - CAS Key Laboratory of Urban Pollutant Conversion, School of Chemistry and 
      Materials Science, University of Science and Technology of China, Hefei 230026, 
      China.
FAU - Yang, Chuan-Wang
AU  - Yang CW
AD  - CAS Key Laboratory of Urban Pollutant Conversion, School of Chemistry and 
      Materials Science, University of Science and Technology of China, Hefei 230026, 
      China.
FAU - Li, Jing
AU  - Li J
AD  - CAS Key Laboratory of Urban Pollutant Conversion, School of Chemistry and 
      Materials Science, University of Science and Technology of China, Hefei 230026, 
      China.
FAU - Yuan, Li
AU  - Yuan L
AD  - CAS Key Laboratory of Urban Pollutant Conversion, School of Chemistry and 
      Materials Science, University of Science and Technology of China, Hefei 230026, 
      China.
FAU - Sheng, Guo-Ping
AU  - Sheng GP
AD  - CAS Key Laboratory of Urban Pollutant Conversion, School of Chemistry and 
      Materials Science, University of Science and Technology of China, Hefei 230026, 
      China. Electronic address: gpsheng@ustc.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20180828
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Reactive Oxygen Species)
RN  - 0 (Waste Water)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - China
MH  - *Photolysis
MH  - Reactive Oxygen Species/chemistry
MH  - Spectrometry, Fluorescence
MH  - Spectrophotometry, Ultraviolet
MH  - Spectroscopy, Fourier Transform Infrared
MH  - *Waste Disposal, Fluid
MH  - Wastewater/*analysis
MH  - Water Pollutants, Chemical/*chemistry
OTO - NOTNLM
OT  - Effluent organic matter (EfOM)
OT  - Fluorescence
OT  - Two-dimensional correlation analysis (2D-COS)
OT  - photodegradation
EDAT- 2018/10/13 06:00
MHDA- 2018/11/15 06:00
CRDT- 2018/10/13 06:00
PHST- 2018/06/20 00:00 [received]
PHST- 2018/08/09 00:00 [revised]
PHST- 2018/08/26 00:00 [accepted]
PHST- 2018/10/13 06:00 [entrez]
PHST- 2018/10/13 06:00 [pubmed]
PHST- 2018/11/15 06:00 [medline]
AID - S0048-9697(18)33349-7 [pii]
AID - 10.1016/j.scitotenv.2018.08.378 [doi]
PST - ppublish
SO  - Sci Total Environ. 2019 Feb 1;649:1260-1268. doi: 
      10.1016/j.scitotenv.2018.08.378. Epub 2018 Aug 28.