E.ON, one of the largest energy providers in Europe, have been using ozone for treating their cooling tower water for a decade. At its RoCa Power station in Rotterdam, Holland the existing ozone system was not working properly and E.ON gave Excellent Ozone System & Consultants BV the task to build a new 3000-gram ozone system.
Excellent Ozone Systems choose to install four Primozone® GM ozone generators as a part of their ozone system.
“We had heard about the excellent performance of the Primozone Ozone Generator and its high ozone concentration and we wanted to supply E.ON with the best quality possible”, says Jeroen Lijkendijk, Account Manager at Excellent Ozone Systems. “The performance of the Primozone Ozone Generator has proven to be even better than expected and we are very pleased”.
The use of ozone in cooling tower water systems has several functions. The water for the E.ON cooling tower comes from a small river and contains bacteria and other contaminations when entering the system. These bacteria need to be destroyed to prevent bacterial growth in the cooling tower.
Ozone is a very strong disinfectant, it is much more efficient than chlorine on for example E. Coli bacteria and Legionella Pneumo-Phila. In addition, it leaves no residue and the water can safely be let back out into the river. Ozone is, therefore, the most effective and environmentally friendly method of controlling the microbiology of cooling tower water.
Ozone also prevents biological deposits inside the cooling water tower and the heat exchangers, which otherwise can create problems like blocking and corrosion.
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