New and green extraction of mercury(I) by pure sunflower oil: Mechanism, kinetics and thermodynamics

To protect the environment from hazardous metals and promote a benign extraction method for society, pure sunflower oil is newly applied to extract mercury (Hg(I)) from synthetic water. Optimal conditions of influencing parameters have been determined via the process of solvent extraction. Its extraction mechanism is investigated, applying both theory and analysis. In addition, the reaction order and rate constant of Hg(I) extraction are obtained. Following the natural logarithm of the Arrhenius equation, the reaction rate constant, as a function of temperature, is examined. Thermodynamic parameters have also been calculated in order to identify the phenomena of extraction. Furthermore, the extraction of Hg(I) from other metals in industrial wastewater has been carried out. (c) 2021 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Automated summary

Pure sunflower oil is newly used to extract mercury (Hg(I)) from synthetic water to protect the environment from hazardous metals and promote a benign extraction method. Optimal conditions of influencing parameters have been determined, and the extraction mechanism, reaction order, rate constant, and thermodynamic parameters of Hg(I) extraction have been investigated. Extraction of Hg(I) from other metals in industrial wastewater has also been carried out.