冷却水系统中铜和镀锌钢表面生物膜的形成

N. D. Güngör, Bihter Minnoş, Esra Ilhan Sungur, A. Çotuk
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引用次数: 14

摘要

冷却水系统为微生物的繁殖提供了理想的水生环境。由于众所周知的防污性能,铜和镀锌钢经常用于冷却塔的建造。目前的研究将检查好氧嗜中温异养细菌(TAMHB)总数的变化,铜和镀锌钢表面上军团菌和自由生活阿米巴原虫的存在以及冷却水系统中杀菌剂的存在。在实验中,通过扫描电镜对铜和镀锌板上的生物膜进行了验证。统计分析表明,镀锌钢券表面的异养细菌数量显著高于铜券表面(P<0.01)。结果表明,分离物属于假单胞菌属或与该属有密切关系。铜券和镀锌钢券表面均检出游离变形虫,培养法未检出嗜肺军团菌。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biofilm Formation on Copper and Galvanized Steel Surfaces in a Cooling-Water System
Cooling water systems provide ideal aquatic environment for the microorganism multiplication. Copper and galvanized steel are frequently used in the construction of cooling towers because of their well-known antifouling property. The current study would examine the changes in total aerobic mesophilic heterotrophic bacteria (TAMHB) counts, the presence of Legionella and free-living amoeba on copper and galvanized steel surfaces and the presence of biocide in a cooling water system. In this study biofilm was confirmed by SEM on copper and galvanized coupons in experiments. Statistical analysis demostrated that heterotrophic bacteria counts were significantly (P<0.01 ) higher on the surface of galvanized steel coupons than on the surface of copper coupons. Our results showed that the isolates were characterized as members of genus Pseudomonas or were closely related to this genus. Free-living amoeba were detected on the surface of copper coupons and galvanized steel coupons whereas Legionella pneumophila was not established by culture method.
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