𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Biofilm formation in water cooling systems

✍ Scribed by M. T. S. Lutterbach; F. P. França

Book ID
104730062
Publisher
Springer
Year
1996
Tongue
English
Weight
819 KB
Volume
12
Category
Article
ISSN
1573-0972

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✦ Synopsis

Biofilm formation on stainless steel samples immersed in cooling water has been evaluated by exposing metal samples to cooling seawater for 30 days. Anaerobic bacteria were then at 1.6 × 10(6)/cm(2), with sulphate-reducing species predominating. Aerobic bacteria and fungi were 2600 and 140/cm(2), respectively. After 60 days, numbers of aerobic microorganisms remained constant whereas the count of anaerobic microorganisms had increased to 1.8×10(9)/cm(2). Scanning electron microscopy showed the presence of morphologically different microorganisms in deposits and as a mucilaginous net. No signs of corrosion were detected on the stainless steel surface.

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