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Ozonolysis of phenolic aldehydes from industrial-based lignin wastewaters.

Abstract

Phenolic aldehydes are widespread pollutants in water and soil, originating from lignin-based agro-industries. With increasing wastewater pollution, improved treatment systems are necessary to degrade phenolic aldehydes into less hazardous compounds. Over the past two decades, ozonolysis wastewater treatment has been implemented in the United States, Japan, and South Korea. However, the mechanistic understanding of phenolic aldehyde ozonolysis in water remains incomplete. This study investigates the ozonolysis of three model phenolic aldehydes (syringaldehyde, vanillin, 4-hydroxybenzaldehyde) in representative concentrations for wastewater of 0.5-1.5 mM and pH 4-8. Each compound solution was sparged for 30 min at a fixed O

Document Type

Article

Publication Date

8-18-2025

Notes/Citation Information

Ozonolysis of phenolic aldehydes from industrial-based lignin wastewaters, Science of Published in The Total Environment, v. 998, 2025, 180190, ISSN 0048-9697, https://doi.org/10.1016/j.scitotenv.2025.180190. Reagan Patton Witt, Mia B. Todd, Motunrayo E. Oladele, Marcelo I. Guzman,

Digital Object Identifier (DOI)

10.1016/j.scitotenv.2025.180190

Funding Information

We thank research funding from the USA National Science Foundation (NSF) award 2403875 to M.I.G. Partial support for the UK NRT Fellowship to R.P.W. under NSF award 1922694 is gratefully acknowledged.

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