Process Equipment Update
Fig. 1. From high-purity applications such as pharmaceutical manufacturing, to disinfection of drinking water, UV is proving a versatile solution.
The advantages of UV disinfection have been known about for years – and, reports Sean Ottewell, the process industries are at the forefront of making the most of them today.
Die Vorteile der UV-Desinfektion waren schon jahrelang bekannt und Sean Ottewell berichtet, dass die Prozessindustrien an der Spitze sind daraus heutzutage das Beste zu machen.
Les avantages de la désinfection par UV sont connus depuis des années, et selon Sean Ottewell, les industries de transformation sont aujourd’hui en première ligne pour en tirer le meilleur parti.
UV takes the lead in non-chemical disinfection systems
A 12
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s part of its environmentally conscious approach to brewing, Korea’s Hite Brewery Company has recently installed 25 Hanovia
UV water disinfection systems at its Massan and Gangwan plants. The ultra violet (UV) systems ensure water
used in the production processes remains free from microbial contamination, ensuring a high quality, pure final product. Seven units are installed at Massan and 18 at Gangwan. In Massan the UV is used to treat clean-
in-place (CIP) water (three units), cooling water-injected after the CIP (three units), and activated carbon-filtered water (one unit). At
the Gangwan plant three UV units are used to treat water after deaeration and the remaining 15 units treat activated carbon-filtered water. CIP is used for cleaning the interior
surfaces of pipework, vessels, filters and other process equipment. CIP water must be completely free from microbial contamination, otherwise it could infect the whole system. As CIP uses very hot water, pipework and vessels need to be cooled down afterwards and before beer production can recommence. Cooling water also helps flush out the remaining CIP water, which contains acid and caustic soda. The purity of the cooling water is therefore extremely important to prevent any residual contamination.
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