Skip to main content

Evaluation of the aerobic and anaerobic degradation of an industrial effluent from vegetable tannery processing of leather on batch reactors

  • Authors (legacy)
    Corresponding: Angelis Dimakis A.
    Co-authors: Ramirez-Canon A.
    Angelis-Dimakis A.
    Ospina-Mora D.C.
    Download PDF
  • gnest_03256_published.pdf
  • Paper ID
    gnest_03256
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.003256
Graphical abstract
Abstract

In this study, the aerobic and anaerobic biodegradability of the industrial wastewater from the vegetable tanning process were evaluated. Water from a food wastewater treatment system was used as seed inoculum for the aerobic process and mature granular methanogenic sludge from a brewery industrial wastewater plant was used for the anaerobic process. The water from the tanning industry had a biological to chemical oxygen demand ratio of 33% with values of total chemical oxygen demand (COD) in the range of 342000 mg O2/L and total dissolved solids of 506595 mg/L. The assay of the tannery effluent under aerobic conditions resulted in a decrease of COD of 39.2% and a degradation of tannins lower than 12% after 26 days, while the anaerobic degradation showed a COD reduction of 65% with a 39% of degradation of tannins. The production of methane and Volatile Fatty Acids, during the anaerobic treatment, suggests a potential adaptation of biological organisms present in the mature anaerobic granular methanogenic sludge.

Keywords
Tannery wastewater tannins anaerobic degradation aerobic degradation Industrial effluent
Cite this article
A., A.D. et al. (2021) “Evaluation of the aerobic and anaerobic degradation of an industrial effluent from vegetable tannery processing of leather on batch reactors”, Global NEST Journal, 23(1). Available at: https://doi.org/10.30955/gnj.003256.
PDF file
  • gnest_03256_published.pdf