Questions & Answers

Questions & Answers

Company

Questions

Answers

Where are WEDECO systems produced?

All WEDECO UV and ozone systems and their core components are developed, produced and finally 100% tested in the German Xylem works in Herford and Essen. more...

According to which quality directives are WEDECO systems certified?

You can basically say: If a standard is required somewhere for assured operation, there is always a WEDECO system which fulfils it. Our products or process cycles are certified in accordance with DIN EN ISO 9001, UL, pressure equipment directive, DVGW, ÖVGW (Austrian association for gas and water), USEPA, WHG (federal water act) to name just the most common. more...


Products

Questions

Answers

I have heard that the generation of ozone is particularly ineffective and uses large amounts of electricity. Is that correct?

This preconception originates from the initial years (around 1920) of ozone use. Much has been done in the meantime. The technology for ozone production has been decisively improved since the 60's in particular. Thus substantially higher ozone concentrations are achieved today with strongly reduced energy expenditure. more…

Is ozone dangerous for the environment?

Ozone is indeed frequently talked of in connection with air pollution and therefore has a rather negative image - wrongly! In the stratosphere, the gas protects us against dangerous solar radiation. When near the earth, ozone appears in low concentrations only under certain conditions e.g. due to air pollution. Applied correctly, it is a safe, effective and environmentally friendly method in water treatment as well as for industrial bleaching and oxidation processes. more…

Is handling ozone dangerous for humans?

Depending on the concentration, ozone causes irritation to the respiratory system of humans and animals. However, modern ozone generators are always completely closed systems, meaning that ozone can only reach the places where it is supposed to act, e.g. in water. Potential ozone leakages are practically only down to human errors. Therefore, WEDECO ozone generators are also equipped with extensive safety equipment such as ozone warning devices. In addition, operator training courses certified by the German Association for Technical Inspection (TÜV) are also part of each WEDECO ozone installation. All these measures plus competently maintained ozone systems make ozone a very safe application. more…

How does disinfection with UV-light work?

The intensive UVC radiation impacts directly on the DNA of microorganisms. By changing the DNA the cell division of the microorganism is interrupted – it can no longer reproduce itself and thus loses its pathogenic effect. more…

What are the benefits of UV-light or ozone in comparison to chlorine as disinfection agent?

Scientific studies show that chemical disinfection methods are associated with health and ecological disadvantages. Using alternative disinfection methods like UV-light or ozone the employment of chemicals like chlorine can be reduced significantly or even replaced. more…


Sales & Service

Questions

Answers

I've been using a WEDECO system for many years. How can I update my system so that it is state-of-the-art?

Use Xylem's technical support service. Upgrade & Retrofit, for example, allows older systems to be made state-of-the-art once again. more...

Who can support me with the installation of my newly acquired WEDECO system?

We can. You can have your WEDECO system completely installed by experienced Xylem employees or make use of our supervision service. more...

Is it possible to test treatment with UV or Ozone before I purchase a system?

Yes. Xylem offers a service whereby lab and field trials can be used to simulate the use of UV and/or ozone on your medium. more...

How often does the UV sensor on my UV system have to be calibrated?

Approved certification authorities recommend that a reference point measurement be carried out on the UV sensor once a year. In some countries such as Germany, Austria and Switzerland it is mandatory. more...