Turbidímetro Baseado em Processamento de Imagens: Elaboração e Avaliação de Desempenho por meio de uma Planta Piloto

Abstract

The dosage of chemicals products represents one of the main benefits that automation systems can bring to water treatment processes. However, the investments required can discourage the use of these systems and, in some cases, make the project unfeasible, especially for small treatment plants. So, the search for less costly solutions is a point of great interest, once the purification of natural waters is increasingly necessary. In the present work, a turbidimeter based on image processing was developed in order to provide results for a small Programmable- Logic Controller (PLC), in which a coagulant product dosing system can be implemented. The system’s performance was evaluated through a pilot plant and the results were satisfactory in all repetitions of the experimental procedure adopted, indicating the feasibility of the proposed method.