The task of the Advanced Oxidation Process (AOP) is to trigger the formation of OH radicals in water to be treated. This process eliminates a wide variety of toxic compounds and microscopic pollutants. Xylem’s preengineered AOP concept WEDECO MiPRO™ is based on three key components: Ozone, Hydrogen Peroxide and UV light generated by low pressure high intensitiy lamp technology. By combining these technologies, flexible solutions for individual requirements are given.

Our philosophy is to design each WEDECO MiPRO™ solution as the perfect complement to the existing process. The overall aim: Ensured removal performance with the highest efficiency possible. The choice of the qualified technologies always depends on the actual problematic substance, considering on-site conditions like footprint, flow rate and energy costs. Xylem will supply the WEDECO MiPRO™ concept in three configurations:

Ideally, contaminated water should always be treated using the most efficient of the various processes. This is why the implementation of an Advanced Oxidation Process in water or waste water works should always begin with the correct selection of the process to be used.

Investing with certainty - AOP piloting

In addition to our established expertise, we possess our own lab and research facilities for water treatment, which investigate the specific research requirements of our customers.

Our experts determine the right procedure for your situation on site at your facility using mobile AOP validation stations. This does not only apply to new treatment systems - it can also be used to optimize existing processes. The various procedures can be tested based on your specific parameters in just a short period of time.

Get to know more about...

• Advanced Oxidation Process
• WEDECO UV Technology
• WEDECO Ozone Technology

“Isn’t really medium pressure UV and Hydrogen Peroxide the best AOP process?”

The combination of medium pressure UV and Hydrogen Peroxide is well known as AOP process, but it is not the only one. Combinations of low pressure UV, Hydrogen Peroxide and/or Ozone do in many cases offer advantages regarding operating costs, power consumption, removal efficiency or footprint. Xylem under its WEDECO brand is able to offer competency based on both core technologies - UV and Ozone.

“Can Bromate be formed in the case of ozone application with AOP?“

Generally, the formation of Bromate is only possible if relevant quantities of Bromide are present in the water. If Bromide is present, the innovative method combining Ozone with Hydrogen Peroxide allows a significant reduction of the direct reaction of Ozone with Bromide.

“How can a combination of O₃, H₂O₂ and UV be less expensive than H₂O₂ / UV?”

Different water contaminants are treated best with the most suitable technology, tailored for the specific contaminant removal. The MiPRO eco₃ plus solution allows to design each single step to the optimum. This optimisation results in lower total treatment cost.

“Why does low pressure UV irradiation work especially well with AOP?”

In many cases, photosensitive substances like NDMA or Amidotrizoic Acid are directly degraded very efficiently with UV light (254 nm). By photolysis, the UV light causes the breaking up of the chemical compounds and thus the degradation of the pollutants. In addition, the activation of Hydrogen Peroxide leads to effective oxidation of micropollutants.