Mechanism of Electrocatalytic Wet Air Oxidation of PPCPs over Solid Catalysts: Kinetic Insight with a Universal Model

2021 ◽  
Author(s):  
Min Sun ◽  
Miao-Miao Hou ◽  
Xian-Zhang Wang ◽  
Bao-Jun Yang ◽  
Lin-Feng Zhai ◽  
...  
Keyword(s):  
Universal Model ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Solid Catalysts

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...

Wet air oxidation with tubular ceramic membranes modified with polyelectrolyte/Pt nanoparticle films

2009 ◽  
Vol 91 (1-2) ◽  
pp. 180-188 ◽  
Author(s):  
David M. Dotzauer ◽  
Ali Abusaloua ◽  
Sylvain Miachon ◽  
Jean-Alain Dalmon ◽  
Merlin L. Bruening
Keyword(s):  
Ceramic Membranes ◽  
Pt Nanoparticle ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Nanoparticle Films

Composition and Biodegradability of Products of Wet Air Oxidation of Polyester

1999 ◽  
Vol 33 (22) ◽  
pp. 4092-4095 ◽  
Author(s):  
Richard M. Dinsdale ◽  
Mats Almemark ◽  
Freda R. Hawkes ◽  
Dennis L. Hawkes
Keyword(s):  
Air Oxidation ◽  
Wet Air Oxidation

scholarly journals Evaluation of wet air oxidation variables for removal of organophosphorus pesticide malathion using Box-Behnken design

2016 ◽  
Vol 75 (3) ◽  
pp. 619-628 ◽  
Author(s):  
Melike Isgoren ◽  
Erhan Gengec ◽  
Sevil Veli
Keyword(s):  
Removal Efficiency ◽  
Applied Pressure ◽  
Organophosphorus Pesticide ◽  
Operating Conditions ◽  
Quadratic Model ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Reaction Conditions ◽  
Efficient Treatment ◽  
Optimum Reaction

This paper deals with finding optimum reaction conditions for wet air oxidation (WAO) of malathion aqueous solution, by Response Surface Methodology. Reaction conditions, which affect the removal efficiencies most during the non-catalytic WAO system, are: temperature (60–120 °C), applied pressure (20–40 bar), the pH value (3–7), and reaction time (0–120 min). Those were chosen as independent parameters of the model. The interactions between parameters were evaluated by Box-Behnken and the quadratic model fitted very well with the experimental data (29 runs). A higher value of R2 and adjusted R2 (>0.91) demonstrated that the model could explain the results successfully. As a result, optimum removal efficiency (97.8%) was obtained at pH 5, 20 bars of pressure, 116 °C, and 96 min. These results showed that Box–Behnken is a suitable design to optimize operating conditions and removal efficiency for non-catalytic WAO process. The EC20 value of raw wastewater was measured as 35.40% for malathion (20 mg/L). After the treatment, no toxicity was observed at the optimum reaction conditions. The results show that the WAO is an efficient treatment system for malathion degradation and has the ability of converting malathion to the non-toxic forms.

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