PMID- 19595430
OWN - NLM
STAT- MEDLINE
DCOM- 20091116
LR  - 20220409
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 43
IP  - 17
DP  - 2009 Sep
TI  - Oxone/Co(2+) oxidation as an advanced oxidation process: comparison with 
      traditional Fenton oxidation for treatment of landfill leachate.
PG  - 4363-9
LID - 10.1016/j.watres.2009.06.043 [doi]
AB  - In this paper, the application of Fenton and Oxone/Co(2+) oxidation processes for 
      landfill leachate treatment was investigated. The removal of the chemical oxygen 
      demand (COD), suspended substances (SS) and the color of the landfill leachate by 
      Fenton oxidation to that by Oxone/Co(2+) oxidation were compared under optimal 
      operational conditions. For Fenton oxidation process, the optimal conditions were 
      determined as: [H(2)O(2)]=80 mmol L(-1), [H(2)O(2)]/[Fe(2+)]=2.0, initial pH=2.5, 
      reaction temperature=37.5+/-1 degrees C, reaction time=160 min, number of 
      stepwise addition=3. Under the given conditions, 56.9% of the COD removal 
      efficiency was achieved, but the SS and the color of the treated landfill 
      leachate increased due to the generation of a large quantity of ferric hydroxide 
      sludge. In reference to Oxone/Co(2+) oxidation process, the optimal conditions 
      were determined as: [Oxone]=4.5 mmol L(-1), [Oxone]/[Co(2+)]=10(4), pH=6.5, 
      reaction temperature=30+/-1 degrees C, reaction time=300 min, number of stepwise 
      addition=7, the COD, SS and the color removal efficiencies were 57.5, 53.3 and 
      83.3%, respectively. From this work, it can be concluded that Oxone/Co(2+) 
      oxidation process demonstrated higher degradation efficiencies of the COD, SS and 
      color for landfill leachate treatment than that by Fenton oxidation process. It 
      also suggested that Oxone/Co(2+) oxidation process could be considered as one of 
      the most promising technologies for practical applicability to treat landfill 
      leachate in large scale. For further improving the efficiency of Oxone/Co(2+) 
      oxidation process, we proposed that combination of it with other technologies in 
      future such as ultraviolet, ultrasound and biological methods.
FAU - Sun, Jianhui
AU  - Sun J
AD  - College of Chemistry and Environmental Sciences, Henan Normal University, Henan 
      Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR 
      China. sunjh_hj@yahoo.com.cn
FAU - Li, Xiaoyan
AU  - Li X
FAU - Feng, Jinglan
AU  - Feng J
FAU - Tian, Xiaoke
AU  - Tian X
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090625
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 0 (Fenton's reagent)
RN  - 0 (Sulfuric Acids)
RN  - 3G0H8C9362 (Cobalt)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - E1UOL152H7 (Iron)
RN  - HL6A2XXU5D (potassium peroxymonosulfuric acid)
SB  - IM
MH  - Cobalt/*chemistry
MH  - Hydrogen Peroxide/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Iron/*chemistry
MH  - Oxidation-Reduction
MH  - *Refuse Disposal
MH  - Sulfuric Acids/*chemistry
MH  - Temperature
EDAT- 2009/07/15 09:00
MHDA- 2009/11/17 06:00
CRDT- 2009/07/15 09:00
PHST- 2009/02/20 00:00 [received]
PHST- 2009/06/15 00:00 [revised]
PHST- 2009/06/20 00:00 [accepted]
PHST- 2009/07/15 09:00 [entrez]
PHST- 2009/07/15 09:00 [pubmed]
PHST- 2009/11/17 06:00 [medline]
AID - S0043-1354(09)00430-8 [pii]
AID - 10.1016/j.watres.2009.06.043 [doi]
PST - ppublish
SO  - Water Res. 2009 Sep;43(17):4363-9. doi: 10.1016/j.watres.2009.06.043. Epub 2009 
      Jun 25.