Benefits of Ryegrass on Multicontaminated Soils Part 2: A Green Process to Provide Idrocilamide

Christophe Waterlot, Pierrick Dufrénoy, Marie Hechelski, Brice Louvel, Adam Daïch and Alina Ghinet
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Christophe Waterlot: Laboratoire Génie Civil et géoEnvironnement (LGCgE), Yncréa Hauts-de-France, Institut Supérieur d’Agriculture, 48 Boulevard Vauban, 59046 Lille CEDEX, France
Pierrick Dufrénoy: Laboratoire de Chimie Durable et Santé, Yncréa Hauts-de-France, Ecole des Hautes Etudes d’Ingénieur, 13 rue de Toul, 59046 Lille CEDEX, France
Marie Hechelski: Laboratoire Génie Civil et géoEnvironnement (LGCgE), Yncréa Hauts-de-France, Institut Supérieur d’Agriculture, 48 Boulevard Vauban, 59046 Lille CEDEX, France
Brice Louvel: Laboratoire Génie Civil et géoEnvironnement (LGCgE), Yncréa Hauts-de-France, Institut Supérieur d’Agriculture, 48 Boulevard Vauban, 59046 Lille CEDEX, France
Adam Daïch: Normandie Univ., UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, BP: 1123 EA 3221, INC3M CNRS-FR 3038, UFR ST 25 rue Philipe Lebon, F-76063 Le Havre CEDEX, France
Alina Ghinet: Laboratoire de Chimie Durable et Santé, Yncréa Hauts-de-France, Ecole des Hautes Etudes d’Ingénieur, 13 rue de Toul, 59046 Lille CEDEX, France

Sustainability, 2019, vol. 11, issue 23, 1-9

Abstract: A restoration of highly contaminated garden soil is proposed as a greener alternative to the production of vegetables. Depending on potentially toxic elements and their concentration, ryegrass shoots accumulate these elements in sufficient quantity to be used as a catalyst in organic synthesis. The analysis of Cd, Pb, Zn, Cu, Fe, Mn, and Al in ashes issued from the calcination of ryegrass shoots revealed that the concentration of Zn was highest (>7000 mg kg –1 ). The ratios between potential Lewis acids (Zn, Cu, Fe, Mn, and Al) to carcinogenic metals (Cd or Pb) were 191 ± 7 for LA/Cd and 235 ± 13 for LA/Pb, making the shoots of ryegrass suitable for the production of Zn-rich polymetallic biosourced catalysts. This material was used in the synthesis of idrocilamide under free-solvent condition, providing the drug in a good yield (69.9%). Data show that a limitation of waste, a maximization of the material incorporation in the process, a minimization of the steps, and an optimization of the stoichiometric factor are the main innovative factors in the current process in comparison with those previously reported.

Keywords: ryegrass; green chemistry; biosourced catalyst; synthesis; metrics (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
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