Diagnóstico da qualidade da água de purga de torres de resfriamento para fins industriais

Abstract

The objective of this work is to minimize the consumption of drinking water consumed in a large chemical industry in southern Brazil, in line with the national goals of the sustainable development objectives, SDG 6, focused on social participation, shared and integrated water management, and the environment. When investigating the possibility of reusing water from cooling tower purges, as an alternative to internal use. In order to minimize water consumption, use it in activities that do not use good quality water, but in accordance with quality and safety standards for people and the environment. The contour diagnosis with 5 analyzes, between the months 06 and 09 of 2023. Covers parameters such as pH, conductivity, microbial count and residual Chlorine, in accordance with the reuse legislation of Resolution CERH nº 122/2023 of the State Water Resources Council – Paraná. When evaluating the results obtained, the conductivity presents values between 2920 ms/cm and 8430 ms/cm, remaining above the upper control limit set at 3200 ms/cm. Conductivity is a control parameter required for the reuse of water in landscape biodiversity, and is therefore eligible for reuse in washing floors and structures in the generating industry itself. The effluent originating from cleaning will follow the same treatment flow practiced in the company, consisting of the POA Advanced Oxidation Process, and Clarification with flocculation and agglutination at the E.T.E. The approval of the implementation of this practice is the responsibility of the managers of the responsible sector of this company.