O3 catalytic oxidation is a technology that is widely used in industrial wastewater treatment. This technology uses the oxidizing gas O3 as the oxidant to oxidize organic pollutants and harmful substances and convert them into harmless substances. This technology is widely used in the advanced treatment of biochemical tail water of coking wastewater, because of its high efficiency, reliability, environmental protection and other significant advantages. In this study, the influencing factors of the biochemical tailwater of coking wastewater advanced treatment by O3 catalytic oxidation method were determined.
The main factors affecting the treatment effect of O3 catalytic oxidation include O3 concentration, reaction time, pH value, COD concentration and water quality components of wastewater. The experimental results show that the concentration of O3 is directly proportional to the rate of O3 catalytic oxidation. Appropriately prolonging the reaction time can increase the reaction rate and achieve better treatment results. In terms of pH adjustment, the treatment effect is best when the wastewater pH value is 7. The change of COD concentration has a certain impact on the treatment effect, but the purification effect of wastewater can still remain relatively stable. In addition, the water quality components in the wastewater also have an impact on the reaction effect, such as the absorption and consumption of wastewater when the oil pollution is serious.
In summary, O3 catalytic oxidation has a good application prospect in the advanced treatment of biochemical tailwater of coking wastewater, but its treatment effect is affected by many factors. Studies have shown that when the O3 concentration and reaction time are appropriate, the pH value is in the appropriate range and the COD mass concentration is controlled, a good treatment effect can be obtained. In the actual application process, it is necessary to carry out reasonable wastewater treatment according to the water quality characteristics of coking wastewater, so as to improve the treatment efficiency and water purification effect.
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