All food waste-based membranes for Chromium(VI) removal

Year: 2021

Authors: Vassalini I., Litvinava M., Alessandri I.

Autors Affiliation: Univ Brescia, Dept Mech & Ind Engn, Chem Technol Lab, Via Branze 38, I-25123 Brescia, Italy; INSTM UdR Brescia, Via Branze 38, I-25123 Brescia, Italy; CNR, INO, Via Branze 38, I-25123 Brescia, Italy; Univ Brescia, Dept Informat Engn, Via Branze 38, I-25123 Brescia, Italy.

Abstract: AbstractIn this work, we demonstrate that eggshell membranes (ESM) can be successfully functionalized with extracts from orange peel or broccoli leaves and stems, in order to create a completely food waste-based adsorbing material, ideal for the removal of hexavalent chromium (Cr(VI)) from water. This approach represents a proof-of-concept example of simultaneous solution to a couple of major global challenges: assuring good quality water and recycling food waste. The working principle of the presented system is based on a synergistic interplay between the ESM functional groups (in particular, protonated amino and carboxylic acid groups) and the organic acids contained in vegetable extracts and it enables to obtain a device that works efficiently in real world conditions.

Journal/Review: ENVIRONMENTAL SUSTAINABILITY

Volume: 4 (2)      Pages from: 429  to: 435

More Information: This work was carried out with the support of Ministero Italiano delle Politiche Agricole, Alimentari, Forestali e del Turismo (MIPAAFT) in the framework of RESTART project.
KeyWords: Food-waste; Hexavalent chromium; Water purification; Eggshell membrane; Organic acids
DOI: 10.1007/s42398-020-00132-y

Citations: 7
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