Catalyst for treating chemical industry organic wastewater

Abstract

The present invention provides a catalyst for treating chemical industry organic wastewater. The catalyst comprises, by mass, 45-70 parts of Al2O3, 25-45 parts of nickel oxide, 8-18 parts of manganese oxide, and 2-10 parts of lanthanum oxide, wherein the Al2O3 is a carrier and supports the nickel oxide, the manganese oxide, and the lanthanum oxide. According to the present invention, the catalyst has excellent performances in the field of hardness, active component stability, service life and catalytic oxidation efficiency, the preparation process is simple, and the industrial production can be achieved; and the catalyst can be used in the fixed bed and the fluidized bed in the engineering, and provides good competitive strength in the treatment effect and the engineering application prospects compared to the traditional active carbon.

Description

technical field [0001] The invention relates to the field of chemical wastewater treatment, in particular to a catalyst for treating chemical organic wastewater. Background technique [0002] With the development of industrialization in our country, water resources are becoming more and more scarce, and more and more attention has been paid to the treatment and recycling of wastewater. The total amount of these wastewaters is huge and tends to increase year by year. If they are not treated before discharge, the high concentration of soluble inorganic salts and refractory toxic organic substances in the wastewater will cause serious damage to the natural ecological environment, such as soil, surface water, and groundwater. Cause destructive pollution, and ultimately affect the living and production water that is closely related to people. Usually, these high-concentration industrial wastewater that is difficult to degrade biochemically can hardly be treated with conventional...

AI Technical Summary

Problems solved by technology

From the perspective of engineering application practice, the efficiency of this type of catalyst to catalyze the oxidant is not high, which leads to an increase in the amount of oxidant, which leads to an increase in cost; secondly, because the activated carbon catalyst itself contains calcium and magnesium ions, it will be in the process. Dissolution will produce precipitation in the subsequent alkaline operating environment, which will affect the effect of wastewater treatment; moreover, due to the production process of activated carbon catalysts, the active metal oxides loaded on it are easy to dissolve, affecting its service life, and the catalyst’s The strength is not ideal, and the wear is serious during the aeration process