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 article, the effects of reaction parameters such as residence time, temperature, H2O2 excess, and initial COD were investigated for treating oily sludge, wet peroxide oxidation (WPO) and catalytic wet oxidation (CWO) were investigated.
Abstract: For treating oily sludge, wet peroxide oxidation (WPO) and catalytic wet oxidation (CWO) were investigated. The CWO experiment was carried out in a 0.5 L batch reactor using FeCl3 as catalyst. By using WPO, the effects of reaction parameters such as residence time, temperature, H2O2 excess, and initial COD were investigated. The results demonstrated that >80 % chemical oxygen demand (COD) was removed by CWO and >90 % COD was removed by WPO. Significantly, more of COD could be removed from the oily sludge by adding H2O2 in small doses. In conclusion, WPO was much more effective in the removal of organic compounds from oily sludge.
16 citations
TL;DR: In this article, a simple and environmentally friendly method to prepare aluminum oxyhydroxide and trihydroxides nanostructures by wet oxidation of AlN/Al composite nanoparticles was developed.
16 citations
Patent•
25 Oct 1993TL;DR: Cross-flow filtration may be utilized in combination with wet oxidation of waste and wastewaters to remove organic and inorganic materials as mentioned in this paper, which can remove oxides or other solids from fluids.
Abstract: Apparatus and methods utilizing cross-flow filtration under supercritical conditions for water to separate/filter a feed stream or reaction mixture, remove oxides or other solids from fluids, and/or separate ion species (e.g., ions, electrolytes, or salts). Cross-flow filtration may be utilized in combination with wet oxidation of waste and wastewaters to remove organic and inorganic materials.
16 citations
Patent•
14 Mar 1989
TL;DR: In this article, a method for operating a continuous wet oxidation system for destroying cyanide in caustic cyanide and metal wastes which scale upon heating is presented. But the method is not suitable for a large number of scales.
Abstract: A method for operating a continuous wet oxidation system for destroying cyanide in caustic cyanide and metal wastes which scale upon heating. Raw waste is introduced into the wet oxidation reactor without heating while a mixture of heated dilution water and oxygen containing gas is introduced into the reactor by a separate inlet. The reactor is fitted with a pair of valved effluent lines and corresponding valved lines for introducing dilute mineral acid into each effluent line at system pressure. Oxidized effluent and offgases exit through a first effluent line while dilute mineral acid flows through a second effluent line into the reactor to prevent scale buildup. Periodically the flows are alternated such that oxidized effluent and offgases exit through the second effluent line and dilute mineral acid flows through the first effluent line into the reactor to remove scale. The oxidized effluent and offgases are then cooled and separated.
16 citations
TL;DR: In this paper, a continuous coupled wet oxidation/biological process for the treatment of four different phenolic compounds of a pharmaceutical wastewater is evaluated according to removal efficiency of each compound, sensitivity to feed perturbations and robustness.
16 citations