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Improving Safety of Soft Targets, Which Are Found Side by Side with Sewage Wells

  • Valentina Iurchenko
  • Elena Lebedeva
Conference paper
  • 21 Downloads
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

Abstract

Improving safety of the soft targets includes protection of the objects that surround them. Compulsory element of immediate surrounding of the soft targets in urban environment is utility systems of city essential services. The sewage networks are open into ground space by means of mines and wells, located in the immediate vicinity of the soft targets as well. One of the potential preventive measures for protection of the soft targets, that are found side by side to sewage mines is engineering solutions that minimize the secondary effects, formed in these facilities: fire hazard/explosion hazard and high concentration of toxic gaseous compounds (hydrogen sulphide, alkyl sulphydrate, carbonic oxide and others). Concentration of methane in gas air environment of the sewage pipelines presents special hazard, which concentration in some areas of the sewage network exceeds the lower explosive limit. The technical solution is experimentally deduced, that allows efficiently and cost-effectively to minimize concentration of gaseous compounds in the sewage networks. The lasting monitoring of gas air environment compound in the urban sewage pipelines has been executed, as well in the mines (17.7% of total amount), located in the immediate vicinity from the various soft targets. It is found that methane concentration in gas air environment of the urban sewage mines has significantly decreased over the last 20 years. And at present the mines with explosive methane content and hazard content of toxic compounds in the neighborhood of the soft targets are not detected.

Keywords

Soft targets Sewage networks Effects Fire hazard/Explosion hazard Minimization Monitoring 

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Copyright information

© Springer Nature B.V. 2020

Authors and Affiliations

  1. 1.Kharkov National University of Civil Engineering and ArchitectureKharkivUkraine

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