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A voltammetric electronic tongue for the quantitative analysis of quality parameters in wastewater
- Source :
- RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia, instname, Repositori Universitat Jaume I, Universitat Jaume I
- Publication Year :
- 2017
- Publisher :
- John Wiley & Sons, 2017.
-
Abstract
- [EN] The use of a voltammetric electronic tongue for the quantitative analysis of quality parameters in influent wastewater from a wastewater treatment plant (WWTP) that treats domestic and industrial wastewater is proposed. The electronic voltammetric tongue consists of a set of four noble electrodes (iridium, rhodium, platinum and gold) housed inside a stainless steel cylinder. These noble metals have high durability and are low maintenance-demanding, as required for developing future automated equipment. A pulse voltammetry study was conducted in 35 wastewater samples to determine ammonia (NH4+-N), nitrates (NO3--N), total phosphate (tot-P), soluble chemical oxygen demand (CODs) and conductivity. These parameters were also determined in these samples by routine analytical methods in the WWTP laboratory. A partial least squares (PLS) analysis was run to obtain a model to predict each parameter. Twenty-five samples were included in the calibration set and 10 in the validation set. Calibration and validation sets were selected randomly, except for the extreme values of each parameter, which were included in the calibration set. Variable selection was performed on the voltammetric data using Genetic Algorithms in the calibration data set for each parameter. The electronic tongue showed good predictive power to determine the concentrations of NH4+-N, NO3--N and tot-P and CODs.<br />The financial support for this work was provided by the Spanish Ministry of Economy and Competitivity though Project e-TONGUE4WAT (IPT-2012-0069-310000) IN-NPACTO and by European Union FEDER funds. Financial support from the Spanish Government (Project MAT2012-38429-C04) and the Generalitat Valencia (Project PROMETEOII/2014/047) is also gratefully acknowledged.
- Subjects :
- Variable selection
Water quality control
Electronic tongue
Analytical chemistry
chemistry.chemical_element
02 engineering and technology
Wastewater
01 natural sciences
Analytical Chemistry
Industrial wastewater treatment
TECNOLOGIA ELECTRONICA
Partial least squares regression
Electrochemistry
Calibration
Voltammetric electronic tongue
010401 analytical chemistry
Chemical oxygen demand
QUIMICA INORGANICA
Genetic algorithms
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Environmental science
Sewage treatment
0210 nano-technology
Platinum
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia, instname, Repositori Universitat Jaume I, Universitat Jaume I
- Accession number :
- edsair.doi.dedup.....520e2f73a8cbedc7d5d7178a1efe205b