Controle de Oxigênio Dissolvido em Reator Químico para Tratamento de Efluentes

Abstract

With technological advancement and the evolution of industrial processes, there was a need to search for sustainable methods that mitigate the damage caused to the environment, generally originating from these same industries. Systems aimed at treating effluents are a great example of this. Furthermore, the use of live microorganisms for this purpose has been studied in several studies. That said, for this treatment method, it is necessary to maintain an environment that maintains the vital conditions of these living beings. Among these circumstances, the control of the dissolved oxygen rate inside the reactors stands out, since aerobic organisms need the consumption of oxygen for their survival. Therefore, measuring, processing and managing these parameters automatically certainly makes the system more advantageous in relation to manual methods, as they enable continuous monitoring and more precise control, reducing the margin of error and ensuring that ideal conditions for the survival of microorganisms are maintained.Therefore, the objective is to design, simulate and manufacture a voltage converter system, applying practical methodologies described by analog and power electronics, which, together with adequate sensing and data processing carried out through an Arduino Uno, has the capacity to automate all control of oxygen dissolved in fluid inside the chemical reactor in an efficient and economically accessible manner. Furthermore, the Proteus 8 Professional software is used as a method of analysis and simulation of electrical circuits, while, to manufacture the controller, only common and easy-to-handle electronic components are used, combined on a board. printed circuit printed in copper. Therefore, aiming to meet other varied applications, the entire final product developed, together with its usage methodology, can be used later in any instrumental plant that allows the control of its equipment based on the effective alternating voltage variation in the load, depending on of digital or analogue sensing of its parameters.