Abstract
In the present work, the wet oxidation (WO) of 2-chlorophenol (2-CP) was studied in aqueous solutions, in a high-pressure agitated autoclave reactor. Specifically, the effect of temperature (160-190 °C), oxygen partial pressure (5-40 bar) and 2-CP initial concentration (250-1500 mg L-1) was examined. The process was attended via total organic carbon (TOC), 2-CP, chloride ion, acetic acid, formic acid and pH measurements. Significant rates of 2-CP disappearance and TOC removal were achieved above 170 °C. A decrease in 2-CP initial concentration below 1000 mg L-1 resulted in a dramatic decrease in the TOC removal achieved, whereas an increase in oxygen partial pressure enhanced greatly the decontamination of the 2-CP aqueous solution, especially from 10 to 20 bar. Much attention was given on the chloride ion removal from the phenolic ring in order to attend the dechlorination of 2-CP during WO. In the WO process, the majority of chloride ions were detached from organic compounds. Finally, a parallel and in series reaction scheme has been proposed for the interpretation of the experimental results.
| Original language | English |
|---|---|
| Pages (from-to) | 1263-1268 |
| Number of pages | 6 |
| Journal | Water Research |
| Volume | 41 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Mar 2007 |
| Externally published | Yes |
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Keywords
- Chlorinated compounds
- WO
ASJC Scopus subject areas
- Earth-Surface Processes
Cite this
Treatment of 2-chlorophenol aqueous solutions by wet oxidation. / Poulopoulos, S. G.; Korologos, C. A.; Boulamanti, A.; Philippopoulos, C. J.
In: Water Research, Vol. 41, No. 6, 03.2007, p. 1263-1268.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Treatment of 2-chlorophenol aqueous solutions by wet oxidation
AU - Poulopoulos, S. G.
AU - Korologos, C. A.
AU - Boulamanti, A.
AU - Philippopoulos, C. J.
PY - 2007/3
Y1 - 2007/3
N2 - In the present work, the wet oxidation (WO) of 2-chlorophenol (2-CP) was studied in aqueous solutions, in a high-pressure agitated autoclave reactor. Specifically, the effect of temperature (160-190 °C), oxygen partial pressure (5-40 bar) and 2-CP initial concentration (250-1500 mg L-1) was examined. The process was attended via total organic carbon (TOC), 2-CP, chloride ion, acetic acid, formic acid and pH measurements. Significant rates of 2-CP disappearance and TOC removal were achieved above 170 °C. A decrease in 2-CP initial concentration below 1000 mg L-1 resulted in a dramatic decrease in the TOC removal achieved, whereas an increase in oxygen partial pressure enhanced greatly the decontamination of the 2-CP aqueous solution, especially from 10 to 20 bar. Much attention was given on the chloride ion removal from the phenolic ring in order to attend the dechlorination of 2-CP during WO. In the WO process, the majority of chloride ions were detached from organic compounds. Finally, a parallel and in series reaction scheme has been proposed for the interpretation of the experimental results.
AB - In the present work, the wet oxidation (WO) of 2-chlorophenol (2-CP) was studied in aqueous solutions, in a high-pressure agitated autoclave reactor. Specifically, the effect of temperature (160-190 °C), oxygen partial pressure (5-40 bar) and 2-CP initial concentration (250-1500 mg L-1) was examined. The process was attended via total organic carbon (TOC), 2-CP, chloride ion, acetic acid, formic acid and pH measurements. Significant rates of 2-CP disappearance and TOC removal were achieved above 170 °C. A decrease in 2-CP initial concentration below 1000 mg L-1 resulted in a dramatic decrease in the TOC removal achieved, whereas an increase in oxygen partial pressure enhanced greatly the decontamination of the 2-CP aqueous solution, especially from 10 to 20 bar. Much attention was given on the chloride ion removal from the phenolic ring in order to attend the dechlorination of 2-CP during WO. In the WO process, the majority of chloride ions were detached from organic compounds. Finally, a parallel and in series reaction scheme has been proposed for the interpretation of the experimental results.
KW - Chlorinated compounds
KW - WO
UR - http://www.scopus.com/inward/record.url?scp=33847199790&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33847199790&partnerID=8YFLogxK
U2 - 10.1016/j.watres.2006.12.038
DO - 10.1016/j.watres.2006.12.038
M3 - Article
C2 - 17292438
AN - SCOPUS:33847199790
VL - 41
SP - 1263
EP - 1268
JO - Water Research
JF - Water Research
SN - 0043-1354
IS - 6
ER -