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Pollutant Removal from Wastewater at Different Stages of the Tanning Process by Electrocoagulation
Joint Authors
de la Luz-Pedro, Alejandra
Martínez Prior, Efraín F.
López-Araiza, M. H.
Jaime-Ferrer, S.
Estrada-Monje, A.
Bañuelos, Jennifer A.
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The removal of chemical oxygen demand (COD), total organic carbon (TOC), turbidity, and chromium content from tannery wastewater at different stages of the process was experimentally investigated using electrocoagulation (EC) with iron and aluminium electrodes.
In the EC of the beamhouse wastewater (S1), the effects of initial pH and current density were analyzed and electrical energy consumption was determined.
The COD and TOC in the solution were effectively removed, with an initial pH 7.0, using either metallic electrode.
With a current density of 28 mA/cm2 for an electrolysis procedure of 60 minutes, the removal efficiency of COD and TOC was 72% and 57% with aluminium electrodes and 69% and 60% with iron electrodes, respectively.
The minimum energy consumption for the highest COD and TOC removal was 0.37 and 0.69 kWh/m3 when employing iron or aluminium electrodes, respectively.
At the optimal conditions, removal efficiencies close to 100% for turbidity and chromium content for wastewaters S1-beamhouse, S2-tanning, S3-retanning, and S4-a mixture 1 : 1 : 1 (v/v/v) were achieved.
Results show that a pseudosecond-order rate equation provides a good correlation for the removal rate of the parameters.
Finally, the results indicate that for tannery wastewater, the EC process does not depend noticeably on the electrode material, but that the stage of the tanning process of wastewater sample has the principal effect on treatment efficiency.
American Psychological Association (APA)
de la Luz-Pedro, Alejandra& Martínez Prior, Efraín F.& López-Araiza, M. H.& Jaime-Ferrer, S.& Estrada-Monje, A.& Bañuelos, Jennifer A.. 2019. Pollutant Removal from Wastewater at Different Stages of the Tanning Process by Electrocoagulation. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1171808
Modern Language Association (MLA)
de la Luz-Pedro, Alejandra…[et al.]. Pollutant Removal from Wastewater at Different Stages of the Tanning Process by Electrocoagulation. Journal of Chemistry No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1171808
American Medical Association (AMA)
de la Luz-Pedro, Alejandra& Martínez Prior, Efraín F.& López-Araiza, M. H.& Jaime-Ferrer, S.& Estrada-Monje, A.& Bañuelos, Jennifer A.. Pollutant Removal from Wastewater at Different Stages of the Tanning Process by Electrocoagulation. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1171808
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171808