Abteilung Mikrobiologie, Institut für Allgemeine Botanik, D-2000 Hamburg 52, Federal Republic of Germany.
Appl Environ Microbiol. 1987 Jul;53(7):1645-8. doi: 10.1128/aem.53.7.1645-1648.1987.
Biogenic sulfuric acid corrosion of concrete surfaces caused by thiobacilli was reproduced in simulation experiments. At 9 months after inoculation with thiobacilli, concrete blocks were severely corroded. The sulfur compounds hydrogen sulfide, thiosulfate, and methylmercaptan were tested for their corrosive action. With hydrogen sulfide, severe corrosion was noted. The flora was dominated by Thiobacillus thiooxidans. Thiosulfate led to medium corrosion and a dominance of Thiobacillus neapolitanus and Thiobacillus intermedius. Methylmercaptan resulted in negligible corrosion. A flora of heterotrophs and fungi grew on the blocks. This result implies that methylmercaptan cannot be degraded by thiobacilli.
在模拟实验中重现了由硫杆菌引起的混凝土表面的生物成因硫酸腐蚀。接种硫杆菌 9 个月后，混凝土块严重腐蚀。对硫化氢、硫代硫酸盐和甲硫醇这 3 种硫化合物进行腐蚀性测试。硫化氢会导致严重腐蚀，优势菌群为氧化硫硫杆菌。硫代硫酸盐导致中度腐蚀，优势菌群为脱氮硫杆菌和中间硫杆菌。甲硫醇则几乎没有腐蚀性。在块体上生长着异养生物和真菌菌群。这一结果意味着甲硫醇不能被硫杆菌降解。
