{"id":6848,"date":"2022-08-26T15:08:51","date_gmt":"2022-08-26T13:08:51","guid":{"rendered":"https:\/\/comprex.de\/pseudomonads\/"},"modified":"2026-04-08T13:43:09","modified_gmt":"2026-04-08T11:43:09","slug":"pseudomonads","status":"publish","type":"page","link":"https:\/\/comprex.de\/en\/building\/pseudomonads\/","title":{"rendered":"Pseudomonads"},"content":{"rendered":"\t\t
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Microbiological contamination in drinking water installations\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Prevent and combat pseudomonads<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Microbiological contamination can occur in drinking water pipes. The causes are structural, operational or procedural deficiencies. Pseudomonads, especially Pseudomonas aeruginosa, are rod-shaped bacteria. They can be dangerous for people with weakened immune systems. They are a dreaded hospital germ with antibiotic resistance. Therefore, quick action is required in the event of contamination.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Germ formation in drinking water installations<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Interesting facts about pseudomonads<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Pseudomonas aeruginosa<\/em> is a widespread soil and water pathogen. Pseudomonads can cause a variety of diseases, including pneumonia – which is associated with a high mortality rate. The pathogen naturally possesses multiple resistances to antibiotics and is one of the most common hospital germs. The germ can be particularly dangerous for people with a weakened immune system.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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Pseudomonads, unlike Legionella, are not only transmitted via aerosols, but can also be transmitted through contact with contaminated surfaces as well as directly from person to person. Contaminated water is an important factor here.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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“P. aeruginosa is characterized by properties such as low nutrient requirements, growth over a wide temperature range, and the ability to form biofilms, and is capable of surviving and reproducing in both water-bearing systems and distilled water.”(Federal Environment Agency recommendation<\/a>)<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tHow do pseudomonads get into the drinking water installation?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t

“Entry into the drinking water system can occur via contaminated materials during construction work on the pipe network or during work on existing or newly installed drinking water installations [6]. As a result of entry, colonization of various material classes such as stainless steel, plastics, soft PVC or sealing materials is possible, whereby new materials without an existing biofilm are more heavily colonized than surfaces with an existing drinking water biofilm. A multiplication is only possible if a nutrient source is present, e.g. on the surface of materials without suitability according to DVGW W 270 [7, 8].”(Recommendation of the Federal Environment Agency<\/a>)<\/p>\n

Sources of contamination in drinking water installations can be improper construction work or repairs.<\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tWhat conditions favor the growth of pseudomonads?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t

According to the generally recognized rules of technology, the cold water temperature is below 25 \u00b0C when operated as intended, i.e. with regular water withdrawal.<\/p>\n

Problems occur<\/p>\n