REMOVAL OF CHROMIUM AND CHEMICAL OXYGEN DEMAND OF TANNERY WASTEWATER BY ELECTROCOAGULATION

  • Roddy Mayta Autor
  • Jhony Mayta Autor
DOI: https://doi.org/10.37761/rsqp.v83i3.117
Keywords: Electrocoagulation, trivalent chromium, chemical demand oxygen

Abstract

Removal of trivalent chromium and chemical oxygen demand (DQO) of tannery wastewater samples by electrocoagulation (EC) from discontinuous operation electrochemical reactor were studied. The influence of times (15 to 45 min), voltages (5 to 10 V), dilutions (0 to 2) and their interactions in EC process were significant (p <0.05). Increases in pH, temperature, and decreases of conductivity of the samples during the EC process were observed. The maximum removal of trivalent chromium (~98 %) and DQO (~48 %) was obtained with the treatment (45 min, 10 V and dilution of 2). Likewise, the experimental results allowed to develop mathematical models for the removal of trivalent chromium and DQO, respectively.

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Author Biographies

Roddy Mayta, Autor

Faculty of Chemical Engineering, National University of the Puno Highlands (UNAP), Army Avenue s / n,
Puno, Peru

Jhony Mayta, Autor

Professional Career of Agroindustrial Engineering, National University of Moquegua (UNAM), Jr. Ancash s / n.
Moquegua, Peru, jhonymayta@hotmail.es

Published
2017-09-30
Issue
Vol. 83 No. 3 (2017): Journal of Sociedad Química del Perú
Section
Artículos

Copyright (c) 2017 Sociedad Química del Perú

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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