Hydrogen Sulphide in Industrial Enterprises Water Management Infrastructure - The Factor of Chemical and Microbiological Corrosion Concrete Degradation of Water Facilities-Reference-Cited by-同舟云学术

Hydrogen Sulphide in Industrial Enterprises Water Management Infrastructure - The Factor of Chemical and Microbiological Corrosion Concrete Degradation of Water Facilities

Published:2021-07-13 Issue: Volume:1038 Page:401-406
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Iurchenko Valentyna¹,Sierohlazov Volodymyr¹,Melnikova Oksana¹,Bryhada Olena²,Mykhailova Larysa³

Affiliation:

1. Kharkov National University of Civil Engineering and Architecture

2. National University of Civil Defence of Ukraine

3. Brandenburg University of Technology at Cottbus

Abstract

The durability of concrete, the material which is widely used for water facilities depends on accumulation in operational environments (drain water, air-gas space) of hydrogen sulfide. Now the mechanism of corrosion destruction of concrete in drainage pipelines is represented as result of biogenous sulphuric acid aggression – influence of the sulphuric acid formed by thionic bacteria. The analysis of data on H2S concentration in drain waters of various industrial enterprises demonstrates that they create in gaseous operational media H2S concentration, sufficient for development in aerobic conditions of thionic bacteria. As the results of urban sewer networks inspection have shown, the correlation between concentration of H2S in aqueous phase and its concentration in air environment, between concentration of H2S in air environment and the corrosion rate of concrete’s coffering part is observed. Chemical and X-ray crystallography of this concrete showed that in corrosive concrete decreases pH, reaching in some examples of values 1-2, and sulfates collect. In dynamics of corrosion process the exponential growth of concentration in concrete of extremely acidophilic thionic bacteria is noted.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.1038.401.pdf

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1. Corrosion of Concrete in a Water Management Structure in Conditions of Biogenic Sulfuric Acid Aggression;Key Engineering Materials;2023-08-25