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

Anyela Ramirez Canon, Athanasios Angelis-Dimakis, Diana Carolina Ospina-Mora

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, the aerobic and anaerobic biodegradability of the industrial wastewater from the vegetable tanning process we reevaluated. 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 mgO2/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.
Original languageEnglish
Pages (from-to)14-20
Number of pages7
JournalGlobal Nest Journal
Volume23
Issue number1
Early online date16 Dec 2020
Publication statusE-pub ahead of print - 16 Dec 2020

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