Microscopic Evaluation of Concrete Samples from Manholes Exposed on Hydrogen Sulphide
| 1 | Department of Sanitary Engineering West Pomeranian University of Technology in Szczecin, al. Piastów 50, 70-311 Szczecin, Poland |
| 2 | Department of Building Physics and Building Materials West Pomeranian University of Technology in Szczecin, al. Piastów 50, 70-311 Szczecin, Poland |
CORRESPONDING AUTHOR
Bartosz Bogusławski
Department of Sanitary Engineering West Pomeranian University of Technology in Szczecin, al. Piastów 50, 70-311 Szczecin, Poland
Department of Sanitary Engineering West Pomeranian University of Technology in Szczecin, al. Piastów 50, 70-311 Szczecin, Poland
Publication date: 2020-01-01
J. Ecol. Eng. 2020; 21(1):188–194
KEYWORDS
TOPICS
ABSTRACT
The field test of the sewer system in a rural area was made. The results from two different pressure-gravity systems localized in two settlements were compared. The investigated sewer system operates in serial connection; the sewage from one settlement is pumped to the expansion well in the next one. In both systems, the high concentration of hydrogen sulfide, exceeding 200 ppm, and visible concrete wells corrosion effects were recorded. The samples of corroded concrete from the internal walls of the chosen wells were collected. The results of an electron microscope with the EDS attachment (Energy dispersive X-ray Spectroscopy) analysis showed a significant sulfur content in a concrete surface layer from 11.2% to 64.2% for the first system and from 7.53% to 42.9% for the second one. The exposure of concrete to high concentrations of hydrogen sulfide and relatively high content of sulfur on the surface of concrete might be a reason for hydrogen sulfide corrosion of concrete in the investigated systems.
RELATED ARTICLE
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.