Importance of hydrogen sulfide, thiosulfate, and methylmercaptan for growth of thiobacilli during simulation of concrete corrosion

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Appl. Environ. Microbiol.; (United States)

OSTI ID:5932812

Sand, W

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.

• Research Organization: Institut fuer Allgemeine Botanik, Hamburg, West Germany
• OSTI ID: 5932812
• Journal Information: Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 53:7; ISSN AEMID
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
ATMOSPHERIC PRECIPITATIONS
BACILLUS
BACTERIA
BUILDING MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CONCRETES
CORROSION
GROWTH
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INORGANIC ACIDS
MATERIALS
METABOLISM
MICROORGANISMS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RAIN
SIMULATION
SULFIDES
SULFUR COMPOUNDS
SULFUR-OXIDIZING BACTERIA
SULFURIC ACID
THIOBACILLUS OXIDANS
THIOLS
THIOSULFATES