Diagnóstico e proposta de gestão de lodo de uma estação de tratamento de água de ciclo completo, na cidade de Maceió - Alagoas

Abstract

The direct disposal of raw waste generated in water treatment plants, in water bodies, is a very common practice in the national water industry. Consequently, the generation of negative environmental impacts, exemplified by river and soil contamination, as well as the potential risk to human health reveal the need to investigate ways of reusing this waste. Therefore, the present study aims to evaluate sludge management alternatives for a full cycle water treatment plant, in order to increase its environmental and socioeconomic potential, in the city of Maceió (Alagoas). To achieve this, the methodologies used consist of laboratory experiments, to characterize the waste, and bibliometric research, to survey possibilities and criteria for reuse. Regarding the results, in addition to the diagnosis of the collected residue, the red ceramic industry was identified as the proposal for reuse to be analyzed, as well as the comparison criteria used were defined. Finally, it is concluded that the sludge produced by the WTP presented has some viable characteristics for its application, as an additive, in red ceramics. However, more laboratorial tests are necessary to evaluate its practical application potential.