Biofilm formation in water cooling systems

被引：20
作者：
Lutterbach, MTS [1 ]
deFranca, FP [1 ]
机构：
[1] FED UNIV RIO DE JANEIRO,DEPT ENGN BIOQUIM,CTR TECHNOL,BR-21941900 RIO JANEIRO,BRAZIL
来源：
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1996年 / 12卷 / 04期
关键词：
biofilm; cooling water; microbiologically influenced corrosion; stainless steel;
D O I：
10.1007/BF00340217
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
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 x 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 x 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.
引用
收藏
页码：391 / 394
页数：4
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