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http://ri.uaemex.mx/handle20.500.11799/109650| Title: | Electrochemical Mineralization of Ibuprofen on BDD Electrodes in an Electrochemical Flow Reactor: Numerical Optimization Approach | Keywords: | BDD electrodes;reactor electroquímico de flujo continuo;mineralización de ibuprofeno;optimización numérica;Metodología de superficie de respuesta;info:eu-repo/classification/cti/7 | Publisher: | MDPI | Project: | 2020 | Description: | Statistical analysis was applied to optimize the electrochemical mineralization of ibuprofen with two boron-doped diamond (BDD) electrodes in a continuous electrochemical flow reactor under recirculation batch mode. A central composite rotatable (CCR) experimental design was used to analyze the e ect of initial pH (2.95–13.04), current intensity (2.66–4.34 A), and volumetric flow rate (0.16–1.84 L/min) and further optimized by response surface methodology (RSM) to obtain the maximum mineralization e ciency and the minimum specific energy consumption. A 91.6% mineralization e ciency (EM) of ibuprofen with a specific energy consumption (EC) of 4.36 KW h/g TOC within 7 h of treatment was achieved using the optimized operating parameters (pH0 = 12.29, I = 3.26 A, and Q of 1 L/min). Experimental results of RSM were fitted via a third-degree polynomial regression equation having the performance index determination coe cients (R2) of 0.8658 and 0.8468 for the EM and EC, respectively. The reduced root-mean-square error (RMSE) was 0.1038 and 0.1918 for EM and EC, respectively. This indicates an e cient predictive performance to optimize the operating parameters of the electrochemical flow reactor with desirability of 0.9999993. Besides, it was concluded that the optimized conditions allow to achieve a high percentage of ibuprofen mineralization (91.6%) and a cost of 0.002 USD $/L. Therefore, the assessed process is e cient for wastewater remediation. CONACyT (791495 y 740588) |
URI: | http://ri.uaemex.mx/handle20.500.11799/109650 | Other Identifiers: | http://hdl.handle.net/20.500.11799/109650 | Rights: | info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0 |
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