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Charles Bridge biocorrosion

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GREGEROVÁ Miroslava WASSEBAUER Richard

Rok publikování 2002
Druh Článek ve sborníku
Konference "Kontra 2002"
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
Obor Biochemie
Klíčová slova Biocorrosion; sandstone; CharlesBridge; microorganisms
Popis The bridge arches and piers of Charles Bridge are settled with a colony of soil bacteria which have corrosive effects on its structure. Chemoautotrophic nitrifying bacteria utilize the residues of halites (carbamide)which migrate in the bridge, due to the damaged damp-proofing of the roadway and produce nitrogen salts. Chemoorganotrophic bacteria utilize the traces of organic substrates and produce a number of organic acids (formic, acetic, propionic, citric, oxalic and other). The activity of microorganisms so enables the origination of primary and secondary salts which affect physical properties of sandstones in Charles Bridge unfavourably.
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