Aerobic Microbiological Corrosion of Water Pipes. I.
- 1 January 1949
- journal article
- research article
- Published by Danish Chemical Society in Acta Chemica Scandinavica
- Vol. 3 (8) , 1094-1105
- https://doi.org/10.3891/acta.chem.scand.03-1094
Abstract
A discussion of the electrochemical nature of corrosion and the 27557-27568 PUBLIC HEALTH BACTERIOLOGY [Vol. 24] 2580 role played by microorganisms, especially iron bacteria, is given. There is a primary formation of a "differential aeration cell" by iron bacteria. The felt-like structure of the sheaths of iron bacteria causes a mechanical strengthening of the "tubercle ,''* which becomes resistant to the flow of water in the main. The iron bacteria cause further anaerobic conditions, increasing the potential between the iron surface under and outside of the iron bacteria, whereby corrosion is increased. Bacteria play a minor role in the establishment of anaerobic conditions under the "tubercle" during the main period of the corrosion. Bacteria caused an avg. increase in corrosion of approx. 10%.This publication has 0 references indexed in Scilit: