Species of Sulphur Bacteria Associated with the Corrosion of Concrete

Parker, C. D.

doi:10.1038/159439b0

Cited by 136 publications

(75 citation statements)

References 5 publications

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“…If the pH dropped below 5, T. thiooxidans started growing, causing further acidification. These results are partly in agreement with those of Parker (1947), Parker & Prisk (1953) and Parker & Jackson (1965) obtained for the Melbourne sewerage system. These authors isolated large numbers of T. thiooxidans, T .…”

Section: K M I L D E a N D O T H E R S Discussionsupporting

confidence: 82%

Thiobacilli of the Corroded Concrete Walls of the Hamburg Sewer System

et al. 1983

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Thiobacilli were estimated in samples taken from the Hamburg sewer system at six sites showing different degrees of concrete corrosion. There was a marked enrichment of thiobacilli on the sewer pipe surface above the sewage level in comparison to the liquid phase. The highest number [lo8 thiobacilli (mg protein)-'] was found at the site of the greatest corrosion. Ten isolates of the genus Thiobacillus were characterized and identified as Thiobacillus neapolitanus, T. thiooxidans, T. intermedius and T. novellus. Facultative chemolithotrophic bacteria predominated at sites of early corrosion, whereas T. thiooxidans was most abundant in severely corroded areas. The cell number of T. thiooxidans could be greatly decreased by aerating the sewage with pure oxygen.

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Section: K M I L D E a N D O T H E R S Discussionsupporting

confidence: 82%

Thiobacilli of the Corroded Concrete Walls of the Hamburg Sewer System

et al. 1983

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“…The strain Thiobacillus X was described (Parker, 1947) as Th. thioparus-like principally because of ( a ) its ability to form a pellicle when grown with thiosulphate in liquid culture in a test tube, (b) its very slow oxidation of elementary sulphur and ( c ) the fact that growth ceased when the pH value fell to 3-4.…”

Section: Thiobacillus Thioparusmentioning

confidence: 99%

“…novellus, Thiobacillus B (Waksman, 1922a), strains 'T' and 'K' (Trautwein, 1921) and Th. concretivorus, Thiobacillus X and the 'M' strains, organisms isolated from concrete (Parker, 1945(Parker, , 1947, were examined to elucidate the mode of oxidation and to establish the identity of the organisms recently isolated from corroded concrete.Thiosulphate was oxidized by all these bacteria. Th.…”

mentioning

confidence: 99%

The Oxidation of Inorganic Compounds of Sulphur by various Sulphur Bacteria

Parker¹,

Prisk²

1953

Journal of General Microbiology

116

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SUMMARY ; Cultures of Thiobacillus thiooxidans, Th. thioparus, Th. novellus, Thiobacillus B (Waksman, 1922a), strains 'T' and 'K' (Trautwein, 1921) and Th. concretivorus, Thiobacillus X and the 'M' strains, organisms isolated from concrete (Parker, 1945(Parker, , 1947, were examined to elucidate the mode of oxidation and to establish the identity of the organisms recently isolated from corroded concrete.Thiosulphate was oxidized by all these bacteria. Th. thiooxidans, Th. concretivorus and Thiobacillus X first converted it to tetrathionate and sulphate and then oxidized the tetrathionate to sulphate and free sulphuric acid. Thiobacillus X differed from the other two in that, owing to a lesser acid tolerance, some tetrathionate was found in the final products of oxidation. Th. thioparus converted thiosulphate to sulphate and sulphur, followed by partial oxidation of the sulphur to sulphuric acid. Th. novellus produced sulphate and sulphuric acid. Thiobacillus B, the 'T' and ' K ' strains and the ' M ' strains formed sulphate and tetrathionate with temporary increase in pH value ; only Thiobacillus X oxidized tetrathionate, yielding sulphate and sulphuric acid.Elementary sulphur was oxidized by Th. thiooxidans, Th. concretivorus, Thiobacillus X and Th. thioparus; the rates of oxidation decreased in that order, and the only product was sulphuric acid. Hydrogen sulphide was oxidized only at low concentrations and only by Th. concretivorus and Thiobacillus X ; sulphuric acid was the end-product, and elementary sulphur may have been an intermediate. ThiobacilZus X differed from Th. thiooxidans in pH range for growth and fromTh. thioparus in its method of oxidation of thiosulphate, tetrathionate and H,S. It appeared to fit earlier descriptions of Th. thioparus by Nathansohn (1902) and Beijerinck (1904) more closely than the strain described as Th. thioparus by Starkey ( 1 9 3 4~) .

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“…These bacteria excrete corrosive acids such as sulfuric acid and nitric acid which solubilize the minerals in stone. Sulfur-oxidizing bacteria of Thiobacillus, important causative microorganism in the deterioration of concrete 15) , were isolated from stone by Gugliandolo 6) . Surveys of organisms at the Angkor site made by the Japanese Government Team for Safeguarding Angkor, UNESCO/Japan Trust Fund (JSA) since 1994, showed that cyanobacteria, algae, and lichens seem to cause the biodeterioration of sandstone 1,2) .…”

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confidence: 99%

Enumeration of Sulfur-Oxidizing Microorganisms on Deteriorating Stone of the Angkor Monuments, Cambodia

et al. 2008

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Annual change in the density of sulfur-oxidizing microorganisms on sandstone was enumerated to know the effects on the deterioration of stone materials of the Angkor monuments in Cambodia. Samples were obtained from total 12 stations at the Angkor Wat, Bayon, and Phnom Krom temples between 1998 and 2007. Sulfur-oxidizing microorganisms enumerated in a mineral salts medium supplemented with elemental sulfur as the sole energy source had a density of 10 1 -10 5 MPN (g sample) −1 . The sulfur-oxidizing microorganisms of the samples collected at Angkor Wat have tended to decrease in density since 2002; on the other hand, relatively constant values have been recorded in the samples of Bayon and Phnom Krom. These results suggest that the sulfur-oxidizing microorganisms on the stone play an important role in the decay of the building blocks by excreting sulfuric acid.

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Species of Sulphur Bacteria Associated with the Corrosion of Concrete

Cited by 136 publications

References 5 publications

Thiobacilli of the Corroded Concrete Walls of the Hamburg Sewer System

Thiobacilli of the Corroded Concrete Walls of the Hamburg Sewer System

The Oxidation of Inorganic Compounds of Sulphur by various Sulphur Bacteria

Enumeration of Sulfur-Oxidizing Microorganisms on Deteriorating Stone of the Angkor Monuments, Cambodia

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