Author(s): De Luna Faustino; Arganis Maritza; Preciado Margarita; Estevez Miriam; Chavez Valeria; Silva Rodolfo; Mendoza Edgar; Garcia Dafne; Lizbeth Rosales; Jorge Segura

Linked Author(s):

Keywords: Sargassum; Treatment; Filtration; HEC -RAS; Epa SWMM; Friction factor

Abstract: In recent years the Mexican Caribbean Sea has manifested the presence of large tons of the sargassum seaweed. Great efforts have been made at the federal, state, and municipal levels to attend to this local phenomenon that is advancing significant environmental impacts in said coastal area of the country. This intervention seeks the use of this aquatic flora with double benefits, on the one hand its cleaning of the beaches and on the other its reuse in the treatment of wastewater, this entails the need for the design and construction of infrastructure for the conduction of said waters for its potential use in economic activities such as agricultural, industrial, urban (non-domestic) irrigation. In this research, a hydraulic analysis of the water flows in contact with sargassum was carried out for the sizing of a free surface channel from the intake site near the sea to a treatment plant. A permanent flow and quality analysis was made considering different roughness and Manning coefficients with the help of the HEC-RAS software of the US Army Corps of Engineers and the Chezy f factor with EPA SWMM to evaluate its effect on the hydraulics of the channel. The results reported a reduction in the depth of the water of 0.10 m, in addition to changes in the speed that reflect in the long term a loss in the driving capacity that implies an increase in the maintenance maneuvers of these works, aerobic conditions were observed. in the system.

DOI: https://doi.org/10.3850/978-90-833476-1-5_iahr40wc-p0401-cd

Year: 2023