PMID- 31493732
OWN - NLM
STAT- MEDLINE
DCOM- 20191009
LR  - 20191010
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 293
DP  - 2019 Dec
TI  - Pretreatment-promoted sludge fermentation liquor improves biological nitrogen 
      removal: Molecular insight into the role of dissolved organic matter.
PG  - 122082
LID - S0960-8524(19)31312-4 [pii]
LID - 10.1016/j.biortech.2019.122082 [doi]
AB  - Waste activated sludge (WAS) can be used as carbon sources to support biological 
      nutrient removal (BNR). In this study, thermal-alkaline (THALK), ozonation (OZN), 
      electrolysis (EC) and NaClO-promoted electrolysis (EC-AOP) were investigated to 
      facilitate WAS solubilization and production of volatile fatty acids (VFAs). 
      EEMF-PARAFAC and FT-ICR-MS were employed to characterize the transformation of 
      dissolved organic matter (DOM) in WAS fermentation liquors at molecular level. 
      THALK achieved the highest fluorescence intensity of C1 protein after 
      pretreatment. Proteins and lipids were the dominant DOM in the pretreated WAS, 
      while the DOM shifted towards substances with higher H/C and lower O/C after 
      fermentation. The BNR results showed that THALK (100%) and EC-AOP (96.9%) 
      outperformed other groups (78.9-90.3%) in terms of NO(3)-N removal, indicating 
      the significant impact of DOM compositions. Overall, these results demonstrated 
      that THALK and EC-AOP effectively enhanced release of VFAs and DOM, which 
      subsequently improved NO(3)-N removal efficiency.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Yuan, Rongxue
AU  - Yuan R
AD  - School of Environmental Science and Engineering, Shanghai Jiao Tong University, 
      800 Dongchuan Road, Shanghai 200240, China.
FAU - Shen, Yanwen
AU  - Shen Y
AD  - School of Environmental Science and Engineering, Shanghai Jiao Tong University, 
      800 Dongchuan Road, Shanghai 200240, China.
FAU - Zhu, Nanwen
AU  - Zhu N
AD  - School of Environmental Science and Engineering, Shanghai Jiao Tong University, 
      800 Dongchuan Road, Shanghai 200240, China; Shanghai Institute of Pollution 
      Control and Ecological Security, 1239 Siping Road, Shanghai 200292, China. 
      Electronic address: nwzhu@sjtu.edu.cn.
FAU - Yin, Changkai
AU  - Yin C
AD  - School of Environmental Science and Engineering, Shanghai Jiao Tong University, 
      800 Dongchuan Road, Shanghai 200240, China.
FAU - Yuan, Haiping
AU  - Yuan H
AD  - School of Environmental Science and Engineering, Shanghai Jiao Tong University, 
      800 Dongchuan Road, Shanghai 200240, China.
FAU - Dai, Xiaohu
AU  - Dai X
AD  - State Key Laboratory of Pollution Control and Resource Reuse, College of 
      Environmental Science and Engineering, Tongji University, 1239 Siping Road, 
      Shanghai 200292, China.
LA  - eng
PT  - Journal Article
DEP - 20190828
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Sewage)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Bioreactors
MH  - Denitrification
MH  - Fermentation
MH  - *Nitrogen
MH  - *Sewage
OTO - NOTNLM
OT  - Denitrification
OT  - Dissolved organic matter
OT  - EEMF-PARAFAC
OT  - FT-ICR-MS
OT  - Pretreatment
OT  - Waste activated sludge
EDAT- 2019/09/08 06:00
MHDA- 2019/10/11 06:00
CRDT- 2019/09/08 06:00
PHST- 2019/07/23 00:00 [received]
PHST- 2019/08/25 00:00 [revised]
PHST- 2019/08/27 00:00 [accepted]
PHST- 2019/09/08 06:00 [pubmed]
PHST- 2019/10/11 06:00 [medline]
PHST- 2019/09/08 06:00 [entrez]
AID - S0960-8524(19)31312-4 [pii]
AID - 10.1016/j.biortech.2019.122082 [doi]
PST - ppublish
SO  - Bioresour Technol. 2019 Dec;293:122082. doi: 10.1016/j.biortech.2019.122082. Epub 
      2019 Aug 28.