Rediseño del sistema de tratamiento de aguas residuales, de la Empresa Textil Andelas, ubicada en el Parque Industrial Ambato.

Abstract

The redesign of the Wastewater Treatment System was developed in the Textile Company ANDELAS, located in the Industrial Park from Ambato. The study degan with a monitoring of the wastewater discharges directly to the Cutuchi River, which provides irrigation wáter to the agricultural áreas from Patate valley. Then, a recognition of the treatment system of the Company was carried out and the measurement of the wáter flows in the dosing tank were done due to that, the treatment of the residual wáter begins there. The flow was monitored during five weeks in the schedules of 10h00, 12h00 and 16h00 obtaining an average result of 1,43 L/s. A single complete sample was taken for the physical, chemical and microbioligical analysis, which results showed that the parameters are outside of the permissible limits according to the table No. 9: Limits of discharge to a Body of Fresh Water, Annex 1, Book VI, TULSMA (Official Register No. 387, November 4, 2015). Among the most important parameters neceded for wastewater treatment are color, turbidity, DBO5 and CDO. By means of a relation between them (DBO5/CDO) , they give the index of Biodegradability that indicates the type of appropiate treatment to the wastewater, en the case of the ANDELAS Company is the chemical treatment. After of the treatment, the porcentage of removal of contaminants was determined; colr 99,89 %, turbidity 99,91 %, DBO5 99,94% and CDO 99,99 %. To the Company ANDELAS. It is concluded that the redesign will consist of a fast turbine mixing tank, a horizontal sedimentation tank and a conbined slow sand and activated carbón filter, it is recommended to emplement the proposed redesign because it is economically feasible and the wastewaster can be seused in the productive processes again.