Influence of COD/SO42− ratio on vinasse treatment performance by two-stage anaerobic membrane bioreactor

• Published in: Journal of environmental management Vol. 259; p. 110034
• Main Authors: Silva, Ana Flávia Rezende, Magalhães, Natalie Cristine, Cunha, Paulo Vitor Martinelli, Amaral, Miriam Cristina Santos, Koch, Konrad
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2020
• Subjects: Anaerobic digestion; anaerobic treatment; Archaea; carbohydrates; chemical oxygen demand; ethanol production; filtration; membrane bioreactors; Membrane fouling; methane production; methanogens; organic matter; Pollutant removal; polymers; seasonal variation; Sugarcane vinasse; sulfate-reducing bacteria; sulfates; Sulfidogenesis; sulfuric acid; vinasse; volatile fatty acids; wastewater; Sulfidogenesis; Sugarcane vinasse; Pollutant removal; Membrane fouling; Anaerobic digestion

Vinasse is sulfate-rich wastewater due to sulfuric acid dosage in some ethanol production steps. The vinasse sulfate concentration is subject to seasonal variations. A two-stage anaerobic membrane bioreactor (2S-AnMBR) was operated to evaluate the influence of COD/SO42− ratio on vinasse treatment pe...