Guevara Amatón KV, Couceiro P, Coto Fuentes H, Calvo-Lopez A, Sández N, Moreno Casillas HA, Valdés Perezgasga F, Alonso-Chamarro J. Microanalyser Prototype for On-Line Monitoring of Copper(II) Ion in Mining Industrial Processes.
SENSORS 2019;
19:s19153382. [PMID:
31374924 PMCID:
PMC6695698 DOI:
10.3390/s19153382]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/25/2019] [Accepted: 07/30/2019] [Indexed: 01/15/2023]
Abstract
A microanalyzer prototype for copper(II) ion monitoring in mining industrial processes is presented. The microanalyzer is designed as an assembly of different modules, each module being responsible for a unit operation. In order to optimize the industrial processes, the microanalyzer can automate all sample management, signal processing, and mathematical calculations and wirelessly transfer data to a control room. The determination of copper(II) ion is done using a colorimetric reaction and the microanalyser performs autocalibration by in situ dilution of a stock solution, matching the higher analyte concentration of the working range defined for the sample to be determined, using a multicommutation approach. The performance of the microanalyzer for monitoring copper(II) ion in water effluents of mining facilities was optimized in the working range from 1 to 10 mg/L to match Mexican environmental law regulations, which allow a maximum concentration of 4 mg/L of copper(II) ion in these circumstances.
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