PMID- 11995864
OWN - NLM
STAT- MEDLINE
DCOM- 20021018
LR  - 20190922
IS  - 1061-4303 (Print)
IS  - 1061-4303 (Linking)
VI  - 74
IP  - 1
DP  - 2002 Jan-Feb
TI  - Catalytic wet oxidation of 2,4-dichlorophenol solutions: activity of the 
      manganese-cerium composite catalyst and biodegradability of the effluent stream.
PG  - 28-32
AB  - Aqueous solutions containing 100 to 1000 mg/L of 2,4-dichlorophenol (2,4-DCP) 
      were oxidized in an upflowing fixed-bed reactor in this study of manganese-cerium 
      composite catalysts, which were prepared by the coprecipitation of both manganese 
      nitrate and ceric nitrate at various molar concentrations. Results showed that 
      2,4-DCP conversion by wet oxidation in the presence of the manganese-cerium 
      composite catalysts was a function of the molar ratio of the manganese-cerium 
      catalyst. The kinetic behavior of 2,4-DCP oxidation with catalysis could be 
      explained by using a zero-order rate expression. Total organic carbon (TOC) 
      removal by wet oxidation in the absence of any catalyst was nil, while 
      approximately 68% TOC reduction was achieved during wet oxidation over a 
      manganese-cerium (7:3 mol/mol) catalyst at 160 degrees C and an oxygen partial 
      pressure of 1.0 MPa. Moreover, the 5-day biochemical oxygen demand/chemical 
      oxygen demand ratios of all the effluent streams were determined to be greater 
      than 0.45 as the wet catalytic processes were carried out at a liquid hourly 
      space velocity less than 24 h (-1), indicating that they could be made more 
      amenable to further biological treatment.
FAU - Lee, Bing-Nan
AU  - Lee BN
AD  - Institute of Environmental Engineering, National Sun Yat-Sen University, 
      Kaohsiung, Taiwan.
FAU - Lou, Jie-Chung
AU  - Lou JC
FAU - Yen, Po-Chung
AU  - Yen PC
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Water Environ Res
JT  - Water environment research : a research publication of the Water Environment 
      Federation
JID - 9886167
RN  - 0 (Chlorophenols)
RN  - 30K4522N6T (Cerium)
RN  - 42Z2K6ZL8P (Manganese)
RN  - 4R7X1O2820 (Chlorine)
RN  - 7440-44-0 (Carbon)
RN  - R669TG1950 (2,4-dichlorophenol)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Algorithms
MH  - Biodegradation, Environmental/drug effects
MH  - Carbon/metabolism
MH  - Catalysis/drug effects
MH  - Cerium/pharmacology
MH  - Chlorine/pharmacology
MH  - Chlorophenols/*metabolism
MH  - Equipment Design
MH  - Manganese/pharmacology
MH  - Models, Biological
MH  - Oxidation-Reduction
MH  - Oxygen/*pharmacology
MH  - Waste Disposal, Fluid/*methods
MH  - Water Purification/methods
EDAT- 2002/05/09 10:00
MHDA- 2002/10/19 04:00
CRDT- 2002/05/09 10:00
PHST- 2002/05/09 10:00 [pubmed]
PHST- 2002/10/19 04:00 [medline]
PHST- 2002/05/09 10:00 [entrez]
AID - 10.2175/106143002x139721 [doi]
PST - ppublish
SO  - Water Environ Res. 2002 Jan-Feb;74(1):28-32. doi: 10.2175/106143002x139721.