Study of essential oils adsorption on three phosphate fertilizers

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

The Mediterranean region under climate change

This book has been published by Allenvi (French National Alliance for Environmental Research) to coincide with the 22nd Conference of Parties to the United Nations Framework Convention on Climate Change (COP22) in Marrakesh. It is the outcome of work by academic researchers on both sides of the Mediterranean and provides a remarkable scientific review of the mechanisms of climate change and its impacts on the environment, the economy, health and Mediterranean societies. It will also be valuable in developing responses that draw on “scientific evidence” to address the issues of adaptation, resource conservation, solutions and risk prevention. Reflecting the full complexity of the Mediterranean environment, the book is a major scientific contribution to the climate issue, where various scientific considerations converge to break down the boundaries between disciplines