Monitoramento de Processos Químicos durante Startup de Reator Anaeróbico UASB: análises da manta de Lodo presente do Reator

Abstract

This research aims to describe the use of anaerobic reactors for industrials purposes providing a discussion on its functions at wastewater treatment plants. The anaerobic reactor main goal is to decompose organic matter, where the decomposition efficacy is due to microorganisms presented in the reactor. On account of the decomposition, some by-products are formed, such as methane. The objective of this case study is to describe the physical-chemical process down to the last detail, as well as, its analytical aspects in which embraces the UASB reactor operational parameters during its start-up. Furthermore, the anaerobic reactor is the primary treatment, after the initial one, being followed by an aerobic reactor in order to conclude the treatment. For this reason, a company named Gelnex, situated on Araguaína-TO, was used to conduct the process verification. The wastewater produced during the company production process has its primary treatment at an UASB reactor. Consequently, the chemicals processes are described during its period of monitoring, emphasizing dadas such as total alkalinity, volatile acidity, pH, e chemical oxygen demand (COD).