Reuso de efluente industrial: um estudo de caso em indústria de margarinas no Ceará

Abstract

In front of the crescent sustainability tendency, it becomes necessary to search for alternative options for the use of natural resources, of which, the water. The treated industrial effluent reuse is a tool that has gained space in the global scenario due to the efficiency and advantages of the process for the industries which uses it. Every effluent to be discarded must be mandatorily adequate to the parameters established by Environment National Council (CONAMA) and the reuse technique consists of treating the industrial effluents to reapply it on production support process as steam generation in industrial boilers, cooling towers systems and garden irrigation. In this work, a review is carried out on the reuse concept and possible applications, effluent treatment stages and current Brazilian legislation regarding water use and management at the country. In addition, it is presented a description of the margarine industrial production focused on water use and consumption, also involving secondaries activities such as equipment hygienization and resources provided by the factory utilities. Through a case study carried out at a large margarine industry at Ceará, it is exposed the effluent reuse implementation as a partial replacement for raw water use, in which the reuse practice brought expressive financial return by reducing volume of captured water and discarded effluent, besides corroboration with the sustainable practices widespread by the company.