Proposta de metodologia para operação estável de reatores anaeróbios em indústrias de refrigerantes.

Abstract

Although increasing the use of anaerobic reactors in the treatment of industrial effluents in soft drink industries, some features of this technology still undermine the performance, stability and reliability of the process, leading to increase operating costs required to ensure the quality of the treated effluent, suitability to legal requirements. Among these characteristics highlight the vulnerability of anaerobic sludge to chemical shocks. The present work proposes a methodology, based on the PDCA method in order to prevent negative impacts on the anaerobic reactor, by identifying the chemical wastes generated by the factory of soft drinks, as well as their classification, as the frequency of discharges and the severity of impact on the activity of anaerobic microorganisms. The study showed, through the reduction of COD (Chemical Oxygen Demand), which chemicals have greater inhibition on the anaerobic sludge, enabling to factory direct control actions and contingency operational prerequisites as well.