PMID- 36444058
OWN - NLM
STAT- MEDLINE
DCOM- 20221130
LR  - 20221201
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 443
IP  - Pt B
DP  - 2023 Feb 5
TI  - Transfer organic chloramines to monochloramine using two-step chlorination: A 
      method to inhibit N-DBPs formation in algae-containing water treatment.
PG  - 130343
LID - S0304-3894(22)02137-9 [pii]
LID - 10.1016/j.jhazmat.2022.130343 [doi]
AB  - Organic chloramines formed in chlorination of algae-containing water are typical 
      precursors of nitrogenous disinfection byproducts (N-DPBs). The objective to 
      simultaneously enhance the removal efficiency of organic chloramines and control 
      DBP formation remains a challenge. In this study, we report a two-step 
      chlorination strategy for transferring organic chloramines to monochloramine 
      based on the decomposition mechanisms of mono- and di-organic chloramines, which 
      could limit organic chloramines formation and inhibit N-DBPs formation. We 
      demonstrated that two-step chlorination could decrease the organic chloramines 
      formation by nearly 50% than conventional one-step chlorination. Furthermore, 
      two-step chlorination not only blocked the pathway that organic chloramines 
      decomposed to nitriles, but also led to the conversion of organic chloramines to 
      monochloramine. During two-step chlorination of algal organic matter, the organic 
      chloramine transfer proportion decreased by 6.5% and the monochloramine transfer 
      proportion increased by 17.0%. The N-DBP formation, especially haloacetonitriles 
      (HANs), decreased significantly as organic nitrogen became inorganic nitrogen 
      (monochloramine) in two-step chlorination. This work further clarified the 
      process from algal organic matter to N-DBPs, which could expand our understanding 
      of algae-derived organic chloramines removal and DBPs control.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Sheng, Da
AU  - Sheng D
AD  - Hunan Engineering Research Center of Water Security Technology and Application, 
      College of Civil Engineering, Hunan University, Changsha 410082, PR China; Key 
      Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan 
      University, Changsha 410082, PR China.
FAU - Bu, Lingjun
AU  - Bu L
AD  - Hunan Engineering Research Center of Water Security Technology and Application, 
      College of Civil Engineering, Hunan University, Changsha 410082, PR China; Key 
      Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan 
      University, Changsha 410082, PR China.
FAU - Zhu, Shumin
AU  - Zhu S
AD  - Hunan Engineering Research Center of Water Security Technology and Application, 
      College of Civil Engineering, Hunan University, Changsha 410082, PR China; Key 
      Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan 
      University, Changsha 410082, PR China.
FAU - Deng, Lin
AU  - Deng L
AD  - Hunan Engineering Research Center of Water Security Technology and Application, 
      College of Civil Engineering, Hunan University, Changsha 410082, PR China; Key 
      Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan 
      University, Changsha 410082, PR China.
FAU - Shi, Zhou
AU  - Shi Z
AD  - Hunan Engineering Research Center of Water Security Technology and Application, 
      College of Civil Engineering, Hunan University, Changsha 410082, PR China; Key 
      Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan 
      University, Changsha 410082, PR China.
FAU - Zhou, Shiqing
AU  - Zhou S
AD  - Hunan Engineering Research Center of Water Security Technology and Application, 
      College of Civil Engineering, Hunan University, Changsha 410082, PR China; Key 
      Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan 
      University, Changsha 410082, PR China. Electronic address: 
      shiqingzhouwater@163.com.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20221108
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - KW8K411A1P (chloramine)
RN  - 0 (Chloramines)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - *Chloramines
MH  - Halogenation
MH  - Nitrogen
MH  - *Water Purification
OTO - NOTNLM
OT  - Algal organic matter
OT  - DBPs control
OT  - Organic chloramines
OT  - Two-step chlorination
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2022/11/30 06:00
MHDA- 2022/12/01 06:00
CRDT- 2022/11/29 01:09
PHST- 2022/08/15 00:00 [received]
PHST- 2022/10/30 00:00 [revised]
PHST- 2022/11/06 00:00 [accepted]
PHST- 2022/11/29 01:09 [entrez]
PHST- 2022/11/30 06:00 [pubmed]
PHST- 2022/12/01 06:00 [medline]
AID - S0304-3894(22)02137-9 [pii]
AID - 10.1016/j.jhazmat.2022.130343 [doi]
PST - ppublish
SO  - J Hazard Mater. 2023 Feb 5;443(Pt B):130343. doi: 10.1016/j.jhazmat.2022.130343. 
      Epub 2022 Nov 8.