PMID- 30473593
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231004
IS  - 0268-2575 (Print)
IS  - 1097-4660 (Electronic)
IS  - 0268-2575 (Linking)
VI  - 91
IP  - 4
DP  - 2016 Apr
TI  - Iron electrolysis-assisted peroxymonosulfate chemical oxidation for the 
      remediation of chlorophenol-contaminated groundwater.
PG  - 938-947
LID - 10.1002/jctb.4659 [doi]
AB  - BACKGROUND: Electrolysis with an iron anode is a novel way to provide ferrous 
      activators for chemical oxidation. The objective of this study is to evaluate the 
      performance of peroxymonosulfate (PMS) for chlorophenol destruction when compared 
      with H(2)O(2) and persulfate (PS), and to see whether the electrolysis mode 
      facilitates the buildup of conditions that favor the activation of PMS and 
      removal of chlorophenols. RESULTS: Ferrous species can effectively activate the 
      PMS over a wide pH range. In comparison with H(2)O(2) and PS, PMS is less 
      sensitive to the solution's pH and possesses stronger oxidation capability at 
      alkaline pHs. The optimal molar ratio of PMS to Fe(II) activator is 1:1 for the 
      destruction of 2,4-dichlorophenol (2,4-DCP). The column experiments show that an 
      acidic zone developed downstream from the anode is favorable to maintain ferrous 
      ions and subsequent activation of PMS. The reactivity of the PMS can be 
      manipulated by varying the electrical currents, and the process demonstrates 
      effectiveness for treating organic contaminants. 2,4-DCP contaminated groundwater 
      shows decreased biotoxicity after the chemical oxidation process without 
      considering the residual PMS. CONCLUSIONS: Iron electrolysis-assisted 
      peroxymonosulfate chemical oxidation can effectively treat the 2,4-dichlorophenol 
      and mixtures of organic contaminants. This process can be engineered as an in 
      situ chemical oxidation method for groundwater remediation.
FAU - Yang, Nuo
AU  - Yang N
AD  - State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan 
      University, Wuhan 430072, China.
FAU - Cui, Jiaxin
AU  - Cui J
AD  - State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan 
      University, Wuhan 430072, China.
FAU - Zhang, Lieyu
AU  - Zhang L
AD  - State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese 
      Research Academy of Environmental Sciences, Beijing 100012, China.
FAU - Xiao, Wei
AU  - Xiao W
AD  - State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan 
      University, Wuhan 430072, China.
FAU - Alshawabkeh, Akram N
AU  - Alshawabkeh AN
AD  - Civil and environmental engineering Department, Northeastern University, Boston, 
      MA, 02115, USA.
FAU - Mao, Xuhui
AU  - Mao X
AD  - State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan 
      University, Wuhan 430072, China.
LA  - eng
GR  - P42 ES017198/ES/NIEHS NIH HHS/United States
PT  - Journal Article
DEP - 20150205
PL  - England
TA  - J Chem Technol Biotechnol
JT  - Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)
JID - 8711102
PMC - PMC6247945
MID - NIHMS995909
OTO - NOTNLM
OT  - chemical oxidation
OT  - chlorophenol
OT  - environmental remediation
OT  - iron electrolysis
OT  - peroxymonosulfate
EDAT- 2016/04/01 00:00
MHDA- 2016/04/01 00:01
PMCR- 2018/11/21
CRDT- 2018/11/27 06:00
PHST- 2018/11/27 06:00 [entrez]
PHST- 2016/04/01 00:00 [pubmed]
PHST- 2016/04/01 00:01 [medline]
PHST- 2018/11/21 00:00 [pmc-release]
AID - 10.1002/jctb.4659 [doi]
PST - ppublish
SO  - J Chem Technol Biotechnol. 2016 Apr;91(4):938-947. doi: 10.1002/jctb.4659. Epub 
      2015 Feb 5.