Topic
Wet oxidation
About: Wet oxidation is a research topic. Over the lifetime, 3094 publications have been published within this topic receiving 61536 citations.
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TL;DR: In this paper, the reactivity of organic compounds composed of C, H, and O, dyes, amides, and water-soluble polymers was correlated well with their carbon content in the molecule (C/MW).
Abstract: The wet oxidation of organic compounds composed only of C, H, and O, dyes, amides, and water-soluble polymers is discussed to clarify the basic nature of this process. The reactivity of the organic compounds composed of C, H, and O, dyes, and some amides was correlated well with their carbon content in the molecule (C/MW) or carbon content in their skeletal structure (C/MW‘). This C/MW index can be applied to roughly estimate the behavior of wastewaters containing various organic compounds. Polymers are easily decomposed by the wet oxidation because they can undergo intramolecular hydrogen abstraction in the chain-propagation step. The biodegradability of polymers and amides was improved by wet oxidation treatment, indicating an asset of this process. The function of homogeneous copper salts and the effect of hydrogen peroxide are discussed. The action of Co/Bi composite oxide designed for the treatment of refractory carboxylic acids, Mn/Ce composite oxide for ammonia and other organic compounds, and Ru/C...
277 citations
TL;DR: In this article, a 30% decrease in oxide thickness at silicon step edges following 900° and 950°C wet oxidation is attributed to the effect of locally compressive intrinsic stress within the oxide on the solubility of oxygen.
Abstract: Nonplanar silicon surfaces were prepared and oxidized at 900°–1100°C and the oxide morphology was studied by transmission electron microscopy of thin sections. A 30% decrease in oxide thickness at silicon step edges following 900° and 950°C wet oxidation is attributed to the effect of locally compressive intrinsic stress within the oxide on the solubility of oxygen. Oxidation inhibition becomes less at higher temperatures due to the relief of stress (during growth) by viscous flow of the oxide.
260 citations
TL;DR: In this paper, the wet air oxidation process is introduced and a number of commercial and emerging technologies are presented, which employ a variety of methods to ameliorate the limitations of the technology whilst maintaining acceptable overall reaction rates.
257 citations
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TL;DR: Wet air oxidation is a process for oxidizing materials in a dilute aqueous matrix as discussed by the authors, which has been applied industrially to de-toxify dilute streams of organic (and oxidizable inorganic) materials in water.
Abstract: Wet Air Oxidation is a process for oxidizing materials in a dilute aqueous matrix. The usual temperature range, 150° to 320°C, requires high pressure to maintain a liquid phase. It has been applied industrially to de-toxify dilute streams of organic (and oxidizable inorganic) materials in water. High destruction efficiencies (99+%) have been demonstrated on a wide range of materials. The oxidation proceeds in a series of steps however, and some small residual species are resistant to further oxidation, eg. acetic acid. The liquid product usually shows a substantial residual chemical oxygen demand as a result, eg 25% or more of the original. A bio-treatment is usually provided for final clean-up.
253 citations
TL;DR: In this article, the technical applicability and the treatment performance of various advanced oxidation technologies (AOTs) for landfill leachate were evaluated and the formation of OH radicals in enhancing oxidation reactions was also elaborated.
243 citations