scholarly journals Catalytic wet air oxidation of high-strength organic coking wastewater

2009 ◽  
Vol 4 (5) ◽  
pp. 624-627 ◽  
Author(s):  
Lihua Han ◽  
Jing Zhu ◽  
Ju Kang ◽  
Yinghua Liang ◽  
Yang Sun
Keyword(s):  
High Strength ◽  
Coking Wastewater ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation

Integrated catalytic wet air oxidation and aerobic biological treatment in a municipal WWTP of a high-strength o-cresol wastewater

Chemosphere ◽  
2007 ◽  
Vol 66 (11) ◽  
pp. 2096-2105 ◽  
Author(s):  
María Eugenia Suarez-Ojeda ◽  
Albert Guisasola ◽  
Juan A. Baeza ◽  
Azael Fabregat ◽  
Frank Stüber ◽  
...  
Keyword(s):  
Biological Treatment ◽  
High Strength ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation

Catalytic wet air oxidation of p-nitrophenol (PNP) aqueous solution using multi-component heterogeneous catalysts

2001 ◽  
Vol 43 (2) ◽  
pp. 229-236 ◽  
Author(s):  
C.-H. Yoon ◽  
S.-H. Cho ◽  
S.-H. Kim ◽  
S.-R. Ha
Keyword(s):  
Aqueous Solution ◽  
Heterogeneous Catalysts ◽  
Batch Reactor ◽  
High Strength ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Toc Removal ◽  
Study Results ◽  
C 30

This study investigated the decomposition of high strength p-nitrophenol (PNP) of 2,000 mg/l (3,400 mg of COD/1,250 mg of TOC) by catalytic wet air oxidation. Multi-component heterogeneous catalysts were used as catalysts for this purpose. The study results using a batch reactor showed that catalyst “D” (Mn-Ce-Zr 22.4 g plus CuSO4 1.0 g; Mn-Ce-Zr-Cu [CuSO4]) was more effective (56˜74%) than catalyst “A” (Mn-Ce-Zr 22.4 g) under the given conditions (O2 partial pressure of 1.0 MPa; temperature of 170˜190°C; 30 min of reaction time). The best result was obtained when 2 g of Mn-Ce-Zr-Cu [CuSO4] was used per 1L of PNP aqueous solution. COD and TOC removal efficiencies were 18% and 23% without catalysts during 20 min of reaction at 190°C. They were improved to 79% and 71% with 2 g/L of Mn-Ce-Zr-Cu [CuSO4] under the same conditions. The ratio of BOD5/COD was measured to evaluate biodegradability. It was 0.05 without catalyst and increased to 0.33 with 2 g/L of Mn-Ce-Zr-Cu [CuSO4] for 20 min of reaction.

Catalytic wet air oxidation of a high strength p-nitrophenol wastewater over Ru and Pt catalysts: Influence of the reaction conditions on biodegradability enhancement

2012 ◽  
Vol 123-124 ◽  
pp. 141-150 ◽  
Author(s):  
Mariángel Martín-Hernández ◽  
Julián Carrera ◽  
María Eugenia Suárez-Ojeda ◽  
Michèle Besson ◽  
Claude Descorme
Keyword(s):  
High Strength ◽  
Catalytic Wet Air Oxidation ◽  
Pt Catalysts ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Reaction Conditions

Biodegradability enhancement of coking wastewater by catalytic wet air oxidation using aminated activated carbon as catalyst

2012 ◽  
Vol 198-199 ◽  
pp. 45-51 ◽  
Author(s):  
Honglin Chen ◽  
Guo Yang ◽  
Yujun Feng ◽  
Changli Shi ◽  
Shirong Xu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Coking Wastewater ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation

Catalytic wet air oxidation of dyeing and printing wastewater

1997 ◽  
Vol 35 (4) ◽  
pp. 311-319 ◽  
Author(s):  
L. Lei ◽  
X. Hu ◽  
H. P. Chu ◽  
G. Chen ◽  
P. L. Yue
Keyword(s):  
High Pressure ◽  
Reaction Time ◽  
Textile Industry ◽  
Porous Alumina ◽  
Supported Catalyst ◽  
Metal Salts ◽  
Treated Wastewater ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation

The treatment of dyeing and printing wastewater from the textile industry by oxidation was studied. The reaction was carried out in a two-litre high pressure reactor. In order to promote the oxidation of organic pollutants present in the wastewater, experiments were conducted using various catalysts including metal salts, metal oxides, and porous alumina supported metals. All catalysts tested were able to enhance the conversion of organic compounds in wastewater, shorten the reaction time, and lower the reaction temperature. The alumina supported catalyst has an advantage over other catalysts in that it can be easily separated from the treated wastewater by filtration and recycled. The conditions in preparing the catalyst supported by porous alumina were experimentally optimised.

Synthesis, characterization and activity of W–La/CexZr1−xO2 catalysts in the catalytic wet air oxidation of phenol

2021 ◽  
Author(s):  
Mohamed Achraf Bouabdellah ◽  
Itidel Belkadhi ◽  
Lassaad Ben Hammouda ◽  
Gwendoline Lafaye ◽  
Francisco Medina Cabello ◽  
...  
Keyword(s):  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Oxidation Of Phenol

scholarly journals Life cycle thinking case study for catalytic wet air oxidation of lignin in bamboo biomass for vanillin production

2021 ◽  
Vol 23 (4) ◽  
pp. 1847-1860
Author(s):  
Christopher S. McCallum ◽  
Wanling Wang ◽  
W. John Doran ◽  
W. Graham Forsythe ◽  
Mark D. Garrett ◽  
...  
Keyword(s):  
Life Cycle ◽  
Crude Oil ◽  
Kraft Lignin ◽  
Life Cycle Thinking ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation

A life cycle thinking analysis (LCT) conducted on the production of vanillin via bamboo wet air oxidation compared to vanillin production from crude oil or kraft lignin.

Comprehensive Evaluation of Non-Catalytic Wet Air Oxidation as a Pretreatment to Remove Pharmaceuticals from Hospital Effluents

2021 ◽  
Author(s):  
Valérie Boucher ◽  
Margot Beaudon ◽  
Pedro Ramirez ◽  
Pascal Lemoine ◽  
Kalyssa Volk ◽  
...  
Keyword(s):  
Surface Waters ◽  
Comprehensive Evaluation ◽  
Chemical Processes ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Highly Efficient ◽  
Hospital Effluents ◽  
Promising Solution

Removal of pharmaceuticals from wastewater using chemical processes is a promising solution to mitigate pollution in drinking and surface waters. Non-catalytic wet air oxidation (WAO) is a highly efficient advanced...

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