金属腐蚀是一种常见现象,一般人都比较熟悉。然而微生物在金属腐蚀中的作用却往往被人忽视。事实上,金属的化学腐蚀以及电化学腐蚀常有微生物的参与。微生物进行生命代谢活动时,会产生各种化学物质,其中,所产生的酸对金属有很大的腐蚀性。有一种硫细菌(Thiobacillus)在有氧条件下能使硫或其它硫酸化合物(例如硫代硫酸盐)氧化,反应最终将产生硫 Metal corrosion is a common phenomenon, most people are more familiar. However, the role of microorganisms in metal corrosion is often overlooked. In fact, chemical attack of metals and electrochemical corrosion often involve microorganisms. When microbes carry out their metabolic activities of life, they produce a variety of chemicals, of which the resulting acids are highly corrosive to metals. One species of Thiobacillus oxidizes sulfur or other sulfate compounds (eg, thiosulfate) under aerobic conditions, and the reaction will eventually produce sulfur