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Updated: May 21, 2026

Elucidating the Metabolism of 2,4-Dibromophenol in Plants
Published on: February 10, 2023
Removal efficiency and toxicity reduction of 4-chlorophenol with physical, chemical and biochemical methods
1Pollution Research Unit, School of Life, Sport and Social Sciences, Edinburgh Napier University, Merchiston Campus, Edinburgh EH10 5DT UK. md.murcia@um.es
Abstract:
Chlorophenols are well-known priority pollutants and many different treatments have been assessed to facilitate their removal from industrial wastewater. However, an absolute and optimum solution still has to be practically implemented in an industrial setting. In this work, a series ofphysical, chemical and biochemical treatments have been systematically tested for the removal of 4-chlorophenol, and their results have been compared in order to determine the most effective treatment based on removal efficiency and residual by-product formation. Chemical treatments based on advanced oxidation processes (AOP) produced the best results on rate and extent of pollutant removal. The non-chemical technologies showed advantages in terms of complete (in the case of adsorption) or easy (enzymatic treatments) removal of toxic treatment by-products. The AOP methods led to the production of different photoproducts depending on the chosen treatment. Toxic products remained in most cases following treatment, though the toxicity level is significantly reduced with combination treatments. Among the treatments, a photochemical method combining UV, produced with a KrCl excilamp, and hydrogen peroxide achieved total removal of chlorophenol and all by-products and is considered the best treatment for chlorophenol removal.
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