Vol. 17 No. 1 (2022)

• Presentation

  Pedro Celis

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Scientific Articles

• Efficiency of the peach seed Prunus pérsica S "Salcajá" as a natural coagulant

  Amilcar Bernardino Racancoj Alonzo

  1-12

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• Use of Mangífera índica seed as a natural coagulant for purification treatment

  Irasema Karina Oliveros Godínez

  13-21

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• Model for the calculation of the Manning roughness coefficient as a function of the height of the bottom material of the Achiguate-Guacalate river

  Jorge Eduardo Fernández Cardona

  22-28

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• Characterization of the leachate produced by the San Pedro La Laguna landfill, Guatemala

  Jennifer Elizabeth López Velásquez

  29-41

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• Analysis of roof and bottle combinations for disinfection using the SODIS methodology

  Elfego Homero Cifuentes Taracena

  42-53

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Reviews

• Contributions of the Regional School of Sanitary Engineering and Hydraulic Resources for Guatemala and the Central American

  Pedro Saravia Celis, Julián Antonio Duarte

  54-59

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