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UDC 628.23

Vasilyev V. M., Malkov A. V., PANKOVA G. A., Klementyev M. N.

Detecting the places of corrosive gas emissions from sewers to the surface and conditions of their formation


Corrosive gas emissions from sewers to the surface happen because of the excess pressure increase in the underroof and shaft space of the sewer. The causes of the pressure increase in the shaft space are considered. The gas amount changing during entering the shaft and removed from it depends on the wastewater flow rate, sewer filling (the height of the gas flow), hydraulic gradient of the sewer, formation of stagnation zones (sludge sedimentation), and temperature. Variation of these parameters and thus the location of corrosive gas emissions to the surface depend on a number of factors that can be divided into several groups: construction, hydraulic, geodesic, operation, random, climatic. Reducing the gas emissions from sewers is possible by: introduction of construction solutions for gaseous medium redistribution; elimination of air blocks, installation of purification filters; avoiding deviations from the design solutions ari­sing during the construction of deep sewers; proper management of wastewater flow at elevation differences; improvement of the sewer operation rules, severization of the requirements to the operating personnel qualification.

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  1. Stromberg A. G., Semchenko D. P. Fizicheskaia khimiia [Physical chemistry. Moscow, Vysshaia Shkola, 2009, 527 p.].
  2. Klebanov F. S. Vozdukh v shakhte: Traktat o provetrivanii ugol’nykh shakht [Air in the shaft: Tractate on coal pit ventilation. Moscow, Imidzh Publ., 1995, 574 p.].
  3. Vasil’ev V. M. [On calculation of free ventilation of sewers]. Podzemnoe Prostranstvo Mira, 1994, issue 1, pp. 15–18. (In Russian).
  4. Malkov A. V. [Theoretical study, calculations of gaseous medium amount moving in gravity deep sewers induced by the entrai­ning liquid capacity]. The 72th Scientific Conference of professors, lecturers, research workers, engineers and Ph. D. Candidates of St. Petersburg State University of Architecture and Civil Engineering, October 5–7, 2016, St. Petersburg. (In Russian).
  5. Vasil’ev V. M., Vasil’ev F. V. [Pat. 2394965, RF. IPC E 03 F5/00. Sewer shaft (options)]. Otkrytiia. Izobreteniia, 2010. (In Russian).
  6. Foster A., McMasters Jr. Air flow in sewers approach to design sewers for both air and water. OWEA 2012 – Collection Systems Specialty Conference. May 10, 2012. Columbus, Ohio, USA.
  7. Joyce J., Hunniford C. Implementing vapor phase odor control on large diameter interceptor systems: Biosolids and Odor and Corrosion Conference & Expo 2013. July 31 – August 1, 2013. San Marcos, Texas, USA.
  8. Kaempfer W., Berndt M. Polymer modified mortar with high resistance to acid to corrosion by biogenic sulfuric acid: Proceedings of the IXth ICPIC Congress, 1998. Bologna, Italy, pp. 681–687.

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