Author(s): Juan Ernesto Ramirez Juarez; Claudia Avila Sandoval; Edith Olmos Trujillo; Anuard Isaac Pacheco Guerrero; Alba Nelida Garcia Beltran; Angel Alfonso Villalobos De Alba

Linked Author(s):

Keywords: Water network design; Ca precipitation; Water pinch; Pipeline obstruction

Abstract: Potable water at high hardness concentration causes recurrent piping obstruction due to calcium precipitation. Water pinch methodology has been used to reduce contaminants concentrations for water networks designs by minimizing the use of an external source with low or cero contaminant concentration. For the present work, this methodology was used to decrease the calcium concentration in the water network design with the aim to reduce its precipitation. Water pinch methodology and nearest neighbour algorithm were used to determine the minimum flowrate external source and to construct the water network, respectively. A flowrate of an external source of 134.7 t/h can reduce the Ca concentration for three sources from 30.0, 38.1, 43.0, and 48.1 mg/L Ca(II) to three demands requirements of 20, 25, and 35 mg/L and residual water with 47.6 mg/L Ca(II). This methodology could achieve an efficient water distribution system design to avoid or reduce the Ca precipitation in water piping distribution.

DOI: https://doi.org/10.3850/IAHR-39WC2521711920221678

Year: 2022