All the operating parameters of the Advanced Oxidation Integrated Equipment have been optimized, and it can run automatically or semi-manually or manually according to demand. The core components of the equipment, the UV lamp, have been optimized in terms of power selection or lamp itself. Compared with traditional UV wastewater treatment systems, the total power of the UV lamp has been reduced by more than 80%, and the operating and investment costs are low. The reduction of the UV lamp reduces the maintenance difficulty of the system.

Product composition

The core system of advanced oxidation integrated equipment is ultraviolet photocatalytic equipment, and the rest is composed of pump, instrument, electronic control system, valve, pipeline and other systems around the ultraviolet photocatalytic equipment.

Product advantage

Adopt new technology to meet various standard requirements.

Wide range of application: all kinds of organic wastewater or heavy metal ion wastewater, no specific type restrictions.

To achieve skid modular combination design, assembly and disassembly fast and convenient, small footprint, short construction period.

The system is stable, energy-saving, high degree of automation, easy to operate.

Convenient maintenance and management, lower investment and operating costs.

There is no limit to pollutant loads, which are limited only by operating costs.

Advanced oxidation processes (AOPs) technology, also known as deep oxidation technology, is characterized by the generation of free radicals with strong oxidation capacity (hydroxyl radical (·OH), sulfate radical (SO-4 ·) and superoxide anion radical (O-2 ·), etc.). It is a method of oxidative degradation of organic matter under the conditions of high temperature and pressure, electricity, light or/and catalyst. According to the way of generating free radicals and the different reaction conditions, it can be divided into photocatalytic oxidation, wet oxidation, acoustochemical oxidation, ozone oxidation, electrochemical oxidation, Fenton oxidation and so on.

UV/Fenton process is a deep oxidation technology, that is, the chain reaction between Fe2+ and H2O2 is used to catalyze the formation of OH free radicals. OH free radicals have strong oxidation properties and can oxidize various toxic and difficult-to-degrade organic compounds to achieve the purpose of removing pollutants. It is especially suitable for the oxidation treatment of organic wastewater which is difficult to biodegrade or general chemical oxidation is difficult to work. The main factors affecting the treatment of landfill leachate by UV/Fenton process are pH, dosage of H2O2 and dosage of iron salt.

Only from the perspective of current engineering practice, UV/Fenton method is the most promising among advanced oxidation methods. The main advantages are: the COD value reduction effect is good and the cost is low. From the perspective of operating cost alone, it is only higher than or equal to the UV/TiO₂ method. Much lower than UV/O₃(including O₃ catalytic oxidation) or PMS oxidation methods. Therefore, globally, among advanced oxidation methods, only Fenton or UV/Fenton have more successful application cases in the field of wastewater treatment, while other advanced oxidation technologies have fewer successful cases due to investment，operating costs or other factors.

The main process is described as follows:

The wastewater first enters the conditioning tank for water quality homogenization, and then enters the subsequent pretreatment system for pretreatment. The pretreatment process can achieve demulsification and remove the opaque suspended matter from the water, and at the same time, the pretreatment can also reduce the organic pollutants in the wastewater to a certain extent, and reduce the cost and difficulty of subsequent treatment.

   The wastewater after pretreatment enters the intermediate tank for temporary storage. The wastewater in the intermediate tank is tested by the on-line detection system for the required pollutant content, and its parameters are used as the basic parameters of the automatic control system to control the dosage of subsequent drugs. Control of the dosage of subsequent drugs, such as catalysts and oxidants, can be either manually or automatically controlled.

After dosing the wastewater in the dosing tank, it goes into the UV oxidation tank for UV treatment. After UV treatment, the wastewater is discharged into the subsequent pH callback pool, adding the optimized agent and adjusting the pH value, and then into the subsequent flocculation precipitation system for precipitation treatment. The wastewater after precipitation treatment can be discharged directly.

After treatment, the content of various pollutants, such as COD value or heavy metal ions, has been effectively reduced. If subsequent biochemical treatment is required, the biodegradability of the wastewater is improved.