AOP water purification

Introduction of AOP water purification system (UV+O3+ oxidation)

With the continuous development of economy, water pollution is becoming more and more serious. There are more and more trace chemicals harmful to human body and environment in water. Common single water treatment methods-physical, chemical, biological, etc. -It's hard to treat. However, the single disinfection and purification methods, such as O3, UV, H2O2 and Cl2, all have the problems of insufficient efficacy and different effects, and the oxidizing ability and selectivity of the oxidant are not strong enough to meet the requirements. Guanyu Company combines advanced technologies at home and abroad, and adopts advanced oxidation processes such as UV, photo-oxidation catalysis, O3, efficient mixing and oxidation. AOPs), which overcomes the problems existing in a single water treatment method, has attracted more and more attention from the market and users for its unique advantages.

In the process of water treatment, the oxidation process with hydroxyl radical as the main oxidant is called AOPs process for short. Compared with other traditional water treatment methods, Guanyu AOP water purification system (UV+O3+ oxidation) has the following characteristics:

1. This product adopts advanced UV photocatalysis technology+ozone oxidation technology+ozone efficient mixing technology to thoroughly oxidize and decompose organic matter, microorganisms and germs in water, and does not add any task chemicals during this process, and will not produce any harmful by-products.

2. Produce a lot of hydroxyl radicals? HO hydroxyl radical? The oxidation capacity of HO (2.80v) is second only to that of fluorine (2.87 V). As an intermediate product of the reaction, it can trigger the following chain reaction. The reaction rate constants of hydroxyl radical and different organic compounds are very different. When there are many pollutants in water, one substance will not degrade and the other substance will remain basically unchanged. ? HO can't selectively react directly with pollutants in water and degrade them into carbon dioxide, water and harmless substances, so it won't produce secondary pollution.

Due to the poor oxidation ability and selective reaction, the common chemical oxidation method can not directly achieve the purpose of completely removing organic matter and reducing TOC and COD, but the oxidation method basically does not have this problem. The intermediate products in the oxidation process can continue to react with hydroxyl radicals until they are completely oxidized into carbon dioxide and water, thus achieving the purpose of completely removing TOC and COD. Because it is a physical and chemical process, it is easy to control to meet the treatment needs, and even reduce the pollutants of 10-9; Compared with the common chemical oxidation method, the reaction speed of oxidation method is very fast, and the general reaction rate constant is greater than109 mol-1ls-1. Can meet the treatment requirements in a short time; It can not only be treated alone, but also be used in combination with other treatment processes, such as pretreatment of biochemical treatment, which can reduce the treatment cost.

3. Sterilization effect of 3.AOP water purification system

Using photocatalytic oxidation technology, bacteria, microorganisms and organic matter in water are thoroughly decomposed by the strong oxidation of hydroxyl radicals during the reaction, and small molecular water and carbon dioxide are generated. AOP can be decomposed quickly and thoroughly, while microorganisms and organisms such as Legionella, Norovirus, Cryptosporidium, Giardia and so on. This is difficult to explain and kill by traditional sterilization and disinfection technology. The inactivation rate of AOP equipment in water reaches 99. %.