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Study of essential oils adsorption on three phosphate fertilizers / N. Benali, H. Ben Daoud, M. Farhati, Chedly Tizaoui, M. Romdhane

Chemical Industry & Chemical Engineering Quarterly, Volume: 24, Issue: 1

Swansea University Author: Chedly Tizaoui

Abstract

In this paper, we report the study of essential oils adsorption on three phosphate fertilizers: mono-ammonium phosphate, di-ammonium phosphate and triple super phosphate with the aim to prepare a bi-function product which can be used as a fertilizer and bio-pesticides. Essential oils were isolated b...

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Published in: Chemical Industry & Chemical Engineering Quarterly
ISSN: 1451-9372
Published: 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa39591
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Abstract: In this paper, we report the study of essential oils adsorption on three phosphate fertilizers: mono-ammonium phosphate, di-ammonium phosphate and triple super phosphate with the aim to prepare a bi-function product which can be used as a fertilizer and bio-pesticides. Essential oils were isolated by steam distillation from Eucalyptus salubris and Artemisia herba.alba and analysed by GC-MS and GC-FID. About 12 and 22 constituents were identified and quantified in these oils, respectively. The kinetic adsorption study of essential oils showed that DAP and TSP exhibited high adsorption capacities compared with MAP (DAP (0.143 g/g) and TSP (0.139 g/g) for Eucalyptus salubris essential oil and (DAP (0.135 g/g) and TSP (0.134 g/g) for Artemisia herba-alba essential oil). The adsorption isotherms of all identified components in the Eucalyptus salubris essential oil were determined and the Langmuir and Freundlich models were used to describe the experimental data. Langmuir model fitted well the isotherms of the majority of the essential oil components (1,8-cineole, α-pinene, β-Pinene, isopinocarveol, β-eudesmol, α-phellandrene, Pinocarvone, P-cymene and Spathulenol) and only Terpineol and Globulol isotherm data followed the Freundlich model. The selectivity was affected by the abundance of each component in the crude essential oil and the polarity of terpenic components.
Keywords: Adsorption; di-ammonium phosphate; Essential oil; isotherms; mono-ammonium phosphate; triple super phosphate fertilizers.
College: College of Engineering
Issue: 1