PMID- 29809002
OWN - NLM
STAT- MEDLINE
DCOM- 20190917
LR  - 20190917
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 52
IP  - 13
DP  - 2018 Jul 3
TI  - Impact of Chloride Ions on UV/H(2)O(2) and UV/Persulfate Advanced Oxidation 
      Processes.
PG  - 7380-7389
LID - 10.1021/acs.est.8b01662 [doi]
AB  - Chloride ion (Cl(-)) is one of the most common anions in the aqueous environment. 
      A mathematical model was developed to determine and quantify the impact of Cl(-) 
      on the oxidization rate of organic compounds at the beginning stage of the 
      UV/persulfate (PS) and UV/H(2)O(2) processes. We examined two cases for the UV/PS 
      process: (1) when the target organic compounds react only with sulfate radicals, 
      the ratio of the destruction rate of the target organic compound when Cl(-) is 
      present to the rate when Cl(-) is not present (designated as r(R)(Cl(-))/ r(R)) 
      is no larger than 1.942%; and (2) when the target organic compounds can react 
      with sulfate radicals, hydroxyl radicals and chlorine radicals, r(R)(Cl(-))/ 
      r(R), can be no larger than 60%. Hence, Cl(-) significantly reduces the organic 
      destruction rate in the UV/PS process. In the UV/H(2)O(2) process, we found that 
      Cl(-) has a negligible effect on the organic-contaminant oxidation rate. Our 
      simulation results agree with the experimental results very well. Accordingly, 
      our mathematical model is a reliable method for determining whether Cl(-) will 
      adversely impact organic compounds destruction by the UV/PS and UV/H(2)O(2) 
      processes.
FAU - Zhang, Weiqiu
AU  - Zhang W
AD  - School of Civil and Environmental Engineering and the Brook Byers Institute for 
      Sustainable Systems , Georgia Institute of Technology , Atlanta , Georgia 30332 , 
      United States.
FAU - Zhou, Shiqing
AU  - Zhou S
AUID- ORCID: 0000-0002-2941-1343
AD  - Department of Water Engineering and Science, College of Civil Engineering , Hunan 
      University , Changsha , Hunan 410082 , China.
FAU - Sun, Julong
AU  - Sun J
AD  - Department of Water Engineering and Science, College of Civil Engineering , Hunan 
      University , Changsha , Hunan 410082 , China.
FAU - Meng, Xiaoyang
AU  - Meng X
AD  - School of Civil and Environmental Engineering and the Brook Byers Institute for 
      Sustainable Systems , Georgia Institute of Technology , Atlanta , Georgia 30332 , 
      United States.
FAU - Luo, Jinming
AU  - Luo J
AUID- ORCID: 0000-0001-8698-7624
AD  - School of Civil and Environmental Engineering and the Brook Byers Institute for 
      Sustainable Systems , Georgia Institute of Technology , Atlanta , Georgia 30332 , 
      United States.
FAU - Zhou, Dandan
AU  - Zhou D
AUID- ORCID: 0000-0001-5072-9033
AD  - School of Environment , Northeast Normal University , Changchun 130024 , China.
FAU - Crittenden, John
AU  - Crittenden J
AUID- ORCID: 0000-0002-9048-7208
AD  - School of Civil and Environmental Engineering and the Brook Byers Institute for 
      Sustainable Systems , Georgia Institute of Technology , Atlanta , Georgia 30332 , 
      United States.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20180613
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Water Pollutants, Chemical)
RN  - 3352-57-6 (Hydroxyl Radical)
RN  - BBX060AN9V (Hydrogen Peroxide)
SB  - IM
MH  - *Hydrogen Peroxide
MH  - Hydroxyl Radical
MH  - Oxidation-Reduction
MH  - Ultraviolet Rays
MH  - *Water Pollutants, Chemical
EDAT- 2018/05/29 06:00
MHDA- 2019/09/19 06:00
CRDT- 2018/05/30 06:00
PHST- 2018/05/29 06:00 [pubmed]
PHST- 2019/09/19 06:00 [medline]
PHST- 2018/05/30 06:00 [entrez]
AID - 10.1021/acs.est.8b01662 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2018 Jul 3;52(13):7380-7389. doi: 10.1021/acs.est.8b01662. 
      Epub 2018 Jun 13.