RAINFALL FLOW AND SANITARY RUNOFF CALCULATION IN MICRO-BASIN TARANGO IN MEXICO CITY, MEXICO

• DOI: 10.22533/at.ed.3173102330035

• Palavras-chave: -

• Keywords: Tarango micro-basin, Puerta Grande River stream, rainfall flow, residual discharges

• Abstract:

  In Mexico City, due to the excessive growth of the population, with more buildings,
  houses, other constructions and paving of streets, little permeable surfaces have been
  generated, increasing the volume of runoff that often causes flooding. Part of this problem
  was observed in the Tarango micro-basin, where the Río Puerta Grande stream is located,
  with a length of 6.3 km, where there are some 53 discharges of urban wastewater that are
  discharged directly into the stream, which produces contamination, affecting its quality. It
  belongs to an Area of Environmental Value due to its ecological importance, so it is
  important to know its rainfall flow in order to have hydraulic and hydrological data, in
  order to establish a future water treatment design. Objective for which the calculation of the
  flow of pluvial origin of runoff in the micro-basin was carried out, with a return period of
  25 years, in addition to also considering residual discharges, for which a flow of 49.10 m 3 /s
  was obtained, performing gauging to obtain the configuration of the channel, its speed and
  depth, in order to identify its behavior in dry season and after rains, comparing field data
  with the time adjustment curve (hydrograph).