Rediseño de la planta de tratamiento de aguas residuales de la Empresa Textil TEIMSA ubicada en la parroquia Santa Rosa de la ciudad de Ambato.

Abstract

The current study consisted of conducting the redesign of the wastewater treatment plant of the textile company TEIMSA located in the Santa Rosa parish of the Ambato city. In here, the waters coming from the different processes of the company are treated before their discharge into the public sewer system, without the total fulfillment of the maximum permissible limits; consequently, the treatment system of the company was recognized, and subsequently, the operation variables were established. Being calculated the caudal during six months, through the volumetric method and wastewater sampling, to identify the parameters that were outside the normative. In face of this, it was determined that the income caudal to the plants 80.39 m3/day and that the settings that violate the maximum permissible limits established in the ministerial agreement 097-A, substitute for the Unified Text of the secondary legislation of the Ministry of environment TULSMA, BOOK VI, ANNEX I, TABLE 8 about the discharge limit towards the public sewer system are: Suspended Solids, COD, BOD5 , Surfactants, and Sulphides. After treatability tests, the process was defined as follows: a grillage system, biological treatment with activated sludge, clarifier one, coagulation-flocculation, clarifier two and filtration with zeolite. The work was validated with a new characterization, after the redesign of the plant, being obtained a removal percentage of 74.11% Suspend Solids, 83.79% COD, 90.45% BOD5 , 98.87% Surfactants, and 99.70 Sulphides. It is concluded that the study is valid; therefore, the company complies with current environmental normative, holding as a recommendation to conduct continuous monitoring of the treatment plant to ensure the maintenance of its efficiency.