Electroconductometer via Arduino for measurement in aqueous suspensions

Authors

  • Jorge Carlos Guerrero Vargas
  • José Aurélio Medeiros da Luz
  • Alan Kardek Rêgo Segundo
  • Felipe de Orquiza Milhomem

DOI:

https://doi.org/10.55905/oelv22n2-064

Keywords:

electroconductivity, flotation, arduino, porosity

Abstract

Real-time electroconductivity monitoring is important in several industry instances. However, this monitoring in aqueous solutions or suspensions (e.g. mineral slurries), applying direct current, is problematic due to electrode polarization, which is the accumulation of ions at the electrode-solution interface. In this study, a low-cost circuit developed is based on Arduino, allowing real-time measurement. It has annular electrodes and operates at a frequency of 1.0 kHz, simulating an alternating current signal, in order to diminish the deleterious effect of interfacial polarization and electrolysis on the electrodes. Through calibration using standard KCl solutions, a measurement range of 0.002 S/m to 1,000 S/m was obtained with good accuracy and precision. Its use is exemplified here by predicting the porosity of suspended binary granular systems.

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Published

2024-02-14

How to Cite

Vargas , J. C. G., da Luz, J. A. M., Segundo , A. K. R., & Milhomem , F. de O. (2024). Electroconductometer via Arduino for measurement in aqueous suspensions. OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA, 22(2), e3179. https://doi.org/10.55905/oelv22n2-064

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Articles