Removal of Color and Chemical Oxygen Demand Using a Coupled Coagulation-Electrocoagulation-Ozone Treatment of Industrial Wastewater that Contains Offset Printing Dyes

Gabriela Roa-Morales; Carlos Barrera-Díaz; Patricia Balderas-Hernández; Francisco Zaldumbide-Ortiz; Horacio Reyes Perez; Bryan Bilyeu

doi:10.29356/jmcs.v58i3.146

Removal of Color and Chemical Oxygen Demand Using a Coupled Coagulation-Electrocoagulation-Ozone Treatment of Industrial Wastewater that Contains Offset Printing Dyes

Authors

Gabriela Roa-Morales Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
Carlos Barrera-Díaz Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
Patricia Balderas-Hernández Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
Francisco Zaldumbide-Ortiz Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
Horacio Reyes Perez Universidad Autónoma del Estado de México
Bryan Bilyeu Xavier University of Louisiana

DOI:

https://doi.org/10.29356/jmcs.v58i3.146

Keywords:

Dye, AHC, Coagulation, Electrocoagulation, Ozonation

Abstract

Industrial offset printing processes generate wastewater with highly colored obtaining values of 5x10⁶ Pt-Co units and great values of chemical oxygen demand (COD) 5.3x10^-5 mg L^-1. Thus, conventional technologies such as biologicals treatment fail in reaching the discharge limits. In this research, a sequential treatment was applied: coagulation with aluminum hydroxychloride (AHC), electrocoagulation with Al anodes and finally ozonation. Optimal conditions are found when adding 20 mg L^-1 AHC, followed by electrocoagulation at 4 A for 50 min, and finally alkaline ozonation for 15 min, resulting in an overall color removal of 99.99% color and 99.35% COD.

Downloads

Download data is not yet available.

Author Biographies

Horacio Reyes Perez, Universidad Autónoma del Estado de México

Facultad de Química

Bryan Bilyeu, Xavier University of Louisiana

Department of Chemistry

Downloads

Published

2017-10-12

Issue

Vol. 58 No. 3 (2014): Special Issue: Environmental Electrochemistry

Section

Regular Articles

License

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.