Topic
Wet oxidation
About: Wet oxidation is a research topic. Over the lifetime, 3094 publications have been published within this topic receiving 61536 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: A novel hybrid process for pre-treatment, viz. wet oxidation-carbon adsorption showed potential for treating a complex wastewater and a kinetic model was proposed to describe kinetics of COD reduction.
16 citations
Patent•
11 Sep 2008TL;DR: In this article, systems and methods are provided for combining refinery spent caustic and ethylene spent Caustic solutions and treating the combined caustics mixture using a wet air oxidation process.
Abstract: Systems and methods are provided for the treatment of caustic wastewater. Specifically, systems and methods are provided for combining refinery spent caustic and ethylene spent caustic solutions and treating the combined spent caustic mixture using a wet air oxidation process.
16 citations
TL;DR: The synthesis of nanoscaled Co-CoO on a graphite felt (GF) as an anode material for electrocatalytic wet air oxidation (ECWAO) of water contaminants at room temperature shows extensive effectiveness in mineralizing a variety of biorefractory organic pollutants.
16 citations
14 Oct 2015
TL;DR: Wet air oxidation (WAO) is a key technology in the disposal of industrial and agricultural process wastewaters as discussed by the authors, it is often used coupled with activated sludge treatment at a wastewater treatment plant (WWTP) as preliminary conversion of toxic and/or non-biodegradable components.
Abstract: Wet air oxidation (WAO) is a key technology in the disposal of industrial and agricultural process wastewaters. It is often used coupled with activated sludge treatment at a wastewater treatment plant (WWTP) as preliminary conversion of toxic and/or non-biodegradable components. The process is based on a high temperature and pressure reaction of the oxidizable materials in water with air or oxygen, in most cases in a bubble column reactor. The oxidation is a chain type radical reaction. The intensification of this technology is possible with the application of homogeneous and heterogeneous catalysts, recently non-thermal radical generating methods (UV/H2O2, ozonization, Fenton type processes) gathered ground also. The most frequent use of the process is in sludge treatment and oxidation of spent caustic of refineries or ethylene plants.
16 citations
TL;DR: In this paper, a facile MgO-based wet oxidation process for biomass pretreatment was developed, which could provide an indispensably weak but adequate alkaline environment to support the oxygen delignification reaction.
Abstract: We have developed a facile MgO-based wet oxidation process for biomass pretreatment. Herein, we performed kilo-scale experiments to elucidate the transformations of Mg in the process as well as the recycling of the MgO-based solid alkali. A new intermediate, magnesium oxide carbonate [Mg3O(CO3)2] generated in situ during the process was shown for the first time, which could provide an indispensably weak but adequate alkaline environment to support the oxygen delignification reaction. However, once the solid alkali was transformed into hydromagnesite [Mg5(CO3)4(OH)2] with sufficient CO2, the hydromagnesite form would prevent the solid alkali from developing resistance to the acidic gaseous CO2. Ultimately, if we take the features of the solid alkali into consideration, alkali recovery for this process was fulfilled easily without concentration or causticization, which are of high cost but unavoidable in the traditional recycling of sodium alkali.
16 citations