How difficult is the treatment of phenol-containing wastewater? Learning these five methods of wastewater treatment becomes simple: There is a type of phenol-containing wastewater in wastewater treatment. At present, in Inner Mongolia wastewater treatment, in the process of wastewater treatment with phenol-containing wastewater, the solvent extraction process is usually used to perform related operations, and the phenol-containing wastewater is treated to meet the phenol-containing emission standards, making it meet the industrial requirements. In recent years, the method of using solvent extractant in the treatment of phenol-containing wastewater has mainly solved the problem of related solvent loss. Therefore, the treatment of phenol-containing wastewater in Inner Mongolia wastewater treatment requires efforts in both technology and wastewater treatment equipment to develop efficient and reliable wastewater treatment technologies . Advanced oxidation treatment technology is a commonly used treatment method for benzene-containing wastewater, mainly including the following.
1 Air oxidation method: This mainly refers to the fact that in the treatment process of phenol-containing wastewater, it is not possible to use only traditional biological methods for treatment, but also to use chemical oxidation for treatment. Wet air oxidation is the current treatment technology. Strengthening air oxidation to meet high temperature and pressure standards can reduce energy consumption and strengthen equipment materials. In the process of air oxidation, the wet catalytic oxidation method can achieve a better wastewater treatment effect at a lower temperature, but there are still many problems in the complete oxidation and degradation of wastewater pollutants.
2 Photochemical oxidation methods: Photochemical oxidation methods are mainly divided into two categories: heterogeneous semiconductor photocatalytic oxidation methods and homogeneous photooxidation methods. Inner Mongolia wastewater treatment heterogeneous semiconductor photocatalytic oxidation method is mainly to achieve the effect of wastewater treatment by completely degrading the phenol content in the wastewater in the organic matter. The current ideal goal is to be able to use heterogeneous semiconductor photocatalytic oxidation technology through the use of solar energy. Make a breakthrough. The homogeneous photo-oxidation method is one of the most studied methods in wastewater treatment. It consumes relatively high power. Therefore, this method has a higher cost in the process of wastewater dephenolation.
3 Electrocatalytic technology: With the continuous development of society, currently in the process of wastewater treatment, electrocatalytic technology often attracts researchers' attention due to the advantages of high treatment efficiency and simple operation. In the process of electrocatalysis technology, electrode catalysis must be studied so that it can achieve the purpose of degradation and overcome the cost of the oxidation method. This method can treat wastewater with higher phenol concentration and higher acidity, and can be treated without dilution or neutralization adjustment. Inner Mongolia wastewater treatment has better application prospects.
4 Ultrasonic biochemical oxidation method: Ultrasonic biochemical oxidation method is an efficient treatment technology for organic pollutants developed in the late 1980s. Its principle is that ultrasonic irradiation of solution generates high temperature (> 5000K) cavitation bubbles and strong oxidation. Sexual substances (such as ˙OH), make the hardly degradable organic matter completely oxidatively degrade under these conditions, without secondary pollution.
5 Supercritical water oxidation method: This mainly refers to the oxidation of organic pollutants in supercritical water. At this time, the water quality will change greatly. In general, crystals and some gases that are difficult to dissolve will melt into the water. . Therefore, to strengthen the good solvent performance and transfer performance in the process of supercritical water oxidation, Inner Mongolia wastewater treatment promotes the rapid oxidative degradation of organic pollutants in supercritical water. The supercritical water oxidation method can be carried out in an orderly manner under high temperature and high pressure conditions. Inner Mongolia wastewater treatment requires higher reaction equipment and higher power consumption, which hinders the industrial application process to a certain extent.
The above is the introduction of some advanced oxidation processes for phenol-containing wastewater. In the next issue of Beicheng Environment, we will continue to introduce the technical analysis of phenol-containing wastewater treatment equipment.