With increasing pollution of water sources and industrial wastewater, traditional treatment methods are no longer adequate for removing persistent pollutants. Persistent organic compounds, dyes, pharmaceuticals, and aromatic compounds are among the pollutants that are difficult to remove by conventional processes. In such circumstances, advanced oxidation systems (AOPs) using ozone (O₃) as one of the strongest oxidizers are considered an efficient and sustainable solution for advanced treatment.
Principles of operation of advanced oxidation systems with ozone
In the advanced oxidation process, the goal is to produce highly reactive radical species such as the hydroxyl radical (•OH). These radicals have very high oxidizing power and are capable of completely breaking down the chemical structure of pollutants and converting them into simpler compounds such as CO₂ and H₂O.
The main reactions in ozone systems include the following:
- Direct destruction of pollutants by ozone;
- Formation of hydroxyl radicals through chain reactions;
- Combining ozone with UV or hydrogen peroxide (O₃/H₂O₂ and O₃/UV) to increase efficiency.
Advantages of using an ozone system in purification
- No need for secondary chemicals: Ozone is generated on site and produces no harmful chemical residues.
- No need for secondary chemicals: Ozone is generated on site and produces no harmful chemical residues.
- Color and odor reduction: especially in wastewater from the food, textile, and petrochemical industries.
- Increase dissolved oxygen in the outlet water.
- No secondary sludge production.
Design and manufacture at Avijeh Alborz Refining Company
Avijeh Alborz Refining Company, relying on engineering capabilities, process knowledge, and field experience in the field of industrial wastewater treatment, provides complete services in the field of design, equipment supply, and construction of advanced oxidation systems.
Design and implementation stages:
- Design and implementation stages:
- Choose the optimal technology: pure O₃, O₃/UV or O₃/H₂O₂.
- Mechanical and electrical design of the system: including ozone generator, contact reactor, injection system and process control.
- Providing industrial standard equipment: from reputable European and domestic brands.
- Manufacture and assembly at the Avijeh Alborz Refining Workshop.
- Commissioning, performance testing and operator training.
Technical features of Avijeh Alborz Refining Equipment
- High efficiency ozone generators (up to 20 g/h – 2 kg/h)
- Contact reactors made of corrosion-resistant stainless steel or FRP
- Solution ozone injection system with venturi mixer and pressurized contact chamber
- Automatic control panel with PLC and ORP and Dissolved O₃ sensors
- Ability to integrate with previous treatment systems (such as MBBR or UF)
Areas of application
- Wastewater treatment for food, pharmaceutical, textile and petrochemical industries.
- Removal of micropollutants from drinking water or wastewater from municipal treatment plants.
- Recycling and reuse of water in industrial processes.
- Improving biological treatment performance in combined processes (AOP + MBR).
summary
سیستمهای اکسیداسیون پیشرفته با ازن به عنوان یکی از مؤثرترین فناوریهای روز دنیا در حوزه تصفیه آب و فاضلاب مطرح شدهاند. The correct implementation and engineered design of these systems requires technical knowledge, industrial experience, and standard equipment; features that Avijeh Alborz Refining Company has relied on to successfully complete numerous projects in various industries in the country.
بدون دیدگاه