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Advanced MEC research focusing on environmental, electrode. Abstract In this study, hydrogen production was analyzed along with methane and carbon dioxide generat...

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System
MEC

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Abstract

Abstract In this study, hydrogen production was analyzed along with methane and carbon dioxide generation using paroxetine, venlafaxine, and o-desmethylvenlafaxine (ODV) as substrates in single-chamber microbial electrolysis cells (MECs). Combinations of all three drugs were examined at concentrations of 750 ng/mL and 170 ng/mL. At the beginning of MEC operations using a 750 ng/mL mixture of drugs, there was no hydrogen or methane, but carbon dioxide was detected. When the concentration of the drug mixture was reduced to 170 ng/mL, MECs produced hydrogen and methane gas. Removal of the drugs during MEC operations was also analyzed using liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). Paroxetine, venlafaxine and ODV drugs were removed up to 99% by MECs. In conclusion, MECs could offer an alternative treatment method for wastewaters containing psychoactive pharmaceuticals with the added benefit of fuel hydrogen generation.

Keywords

MethaneChromatographyHydrogen productionHydrogenElectrolysisCarbon dioxide

Identifiers

DOI
10.2166/wst.2021.269
Journal
Water Science and Technology
Year
2021