Disinfection of drinking water at the Welde Brewery with Bello Zon® chlorine dioxide plants
The Welde Brewery has been brewing beer with its own spring water for over 250 years and the traditional brewery uses several Bello Zon® chlorine dioxide plants to disinfect its drinking water and washing water.
Baroque joie de vivre reigned over the Palace of Schwetzingen in the 18th century and in the same century, more precisely in 1752, the first barrel of Schwetzingen beer was tapped - the year of the birth of the brewery, known at that time simply as "Welde". Today, under the name "Weldebräu", the brewery produces a wide range of beers and beer-based mixed drinks in Plankstadt.
The Welde brewery only uses drinking water from its own spring in its drinks and uses a BelloZon® chlorine dioxide system from ProMinent to disinfect this water. The same applies to the bottle washer, where a BelloZon® system is responsible for disinfecting the spring water before it passes into the washer. A further system is used to treat waste water from the bottle cleaning plant for recycling as washing water and a fourth, older system supplied by ProMinent works alongside in standby mode as backup for production shutdowns and is, in effect, one of the first chlorine dioxide systems for the disinfection of drinking water supplied by ProMinent. "We don't believe that we will have to use the old system again, as the three new ones have never let us down," states Thomas Ullrich, Second Brewing Master and with the Welde brewery since 1992. Mr. Ullrich especially appreciates the reliability and the clear layout of the ProMinent systems. He also praises their simplicity of handling: "In the past we still had to disinfect using toxic chlorine gas and the water sometimes smelled a little like a pharmacy," he recalls. "The modern Bello Zon® CDV systems that we are using today mix together chlorine dioxide from two liquids - acid and alkali - and it is so much easier, less hazardous and above all, neutral in odour and taste."
