A study on the radioactive decomposition characteristics of oxalic acid using metal catalysts

Oxalic acid such as potassium permanganate or chromic acid may be used to treat oxalic acid remaining in the wastewater for various purposes. However, new researches are underway to remove oxalic acid because of the disadvantages of a large amount of chemicals and a relatively large amount of residual wastes. In AOP, OH radicals (OH·, Potential difference: 2.8 V) is generated to treat the organic matter. In the general AOP method, a method of adding ozone, hydrogen peroxide, or the like in parallel is already well known. Several researchers have also introduced a process to improve the TOC removal effect by applying sulfate salts and metal salts in the form of sulfate in the ozone / catalyst process.1-4) In this study, sulphate type Fe ( II ), Cu ( II ) and Ni ( II ) were used to apply ionizing radiation (electron beam) / metal catalyst process. Experiments were carried out to remove oxalic acid in water by using OH radicals in water by acting electron beam and a small amount of transition metal ions like catalyst. The following conclusions were obtained through the electron beam irradiation process and the electron beam irradiation process with various chloride metal salts added. It is expected that the process of adding Cu as a metal catalyst to the decomposition process of irradiating the electron beam to oxalic acid will have a decomposition effect