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Review

Valorization of Agri-Food Wastes as Sustainable Eco-Materials for Wastewater Treatment: Current State and New Perspectives

by
Ecaterina Matei
1,
Maria Râpă
1,
Andra Mihaela Predescu
1,*,
Anca Andreea Țurcanu
2,
Ruxandra Vidu
1,3,
Cristian Predescu
1,*,
Constantin Bobirica
4,
Liliana Bobirica
4 and
Cristina Orbeci
4
1
Faculty of Materials Sciences and Engineering, University POLITEHNICA of Bucharest, 060042 Bucharest, Romania
2
Center for Research and Eco-Metallurgical Expertise, Faculty of Materials Science and Engineering, University POLITEHNICA of Bucharest, 060042 Bucharest, Romania
3
Department of Electrical and Computer Engineering, University of California Davis, One Shields Avenue, Davis, CA 95616, USA
4
Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 060042 Bucharest, Romania
*
Authors to whom correspondence should be addressed.
Materials 2021, 14(16), 4581; https://doi.org/10.3390/ma14164581
Submission received: 27 July 2021 / Revised: 8 August 2021 / Accepted: 11 August 2021 / Published: 15 August 2021
(This article belongs to the Special Issue Advanced Eco-Technology and Materials in Water Treatment)

Abstract

The paper addresses environmental protection by valorizing an important agri-food waste category, namely fruit and vegetables with focusing on the main characteristics regarding consumption, waste quantities, and ways for valorizing these materials. Thus, vast research was undertaken in order to emphasize the main commodities and their potential application as adsorbents for organic and inorganic pollutants. The main methods or treatment techniques applied for the valorization of eco-materials as adsorbents were presented and the principal efficiency results were indicated. The advantages and disadvantages of using these eco-materials as adsorbents in wastewater treatment were revealed and future recommendations were established. According to the international statistics, the most purchased and consumed five commodities were studied regarding waste generations as potential conversion into eco-materials with an adsorbent role for water pollutants. Thus, the performances for adsorbents based on fruit wastes (such as citrus, banana, apples, grapes, mango) and vegetable wastes (such as potatoes, tomatoes, cabbage, carrots, cauliflower, and/or broccoli) were studied and highlighted in this research.
Keywords: agri-food wastes; eco-materials; wastewater treatment agri-food wastes; eco-materials; wastewater treatment

Share and Cite

MDPI and ACS Style

Matei, E.; Râpă, M.; Predescu, A.M.; Țurcanu, A.A.; Vidu, R.; Predescu, C.; Bobirica, C.; Bobirica, L.; Orbeci, C. Valorization of Agri-Food Wastes as Sustainable Eco-Materials for Wastewater Treatment: Current State and New Perspectives. Materials 2021, 14, 4581. https://doi.org/10.3390/ma14164581

AMA Style

Matei E, Râpă M, Predescu AM, Țurcanu AA, Vidu R, Predescu C, Bobirica C, Bobirica L, Orbeci C. Valorization of Agri-Food Wastes as Sustainable Eco-Materials for Wastewater Treatment: Current State and New Perspectives. Materials. 2021; 14(16):4581. https://doi.org/10.3390/ma14164581

Chicago/Turabian Style

Matei, Ecaterina, Maria Râpă, Andra Mihaela Predescu, Anca Andreea Țurcanu, Ruxandra Vidu, Cristian Predescu, Constantin Bobirica, Liliana Bobirica, and Cristina Orbeci. 2021. "Valorization of Agri-Food Wastes as Sustainable Eco-Materials for Wastewater Treatment: Current State and New Perspectives" Materials 14, no. 16: 4581. https://doi.org/10.3390/ma14164581

APA Style

Matei, E., Râpă, M., Predescu, A. M., Țurcanu, A. A., Vidu, R., Predescu, C., Bobirica, C., Bobirica, L., & Orbeci, C. (2021). Valorization of Agri-Food Wastes as Sustainable Eco-Materials for Wastewater Treatment: Current State and New Perspectives. Materials, 14(16), 4581. https://doi.org/10.3390/ma14164581

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