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Ahmadi Azqhandi MH, Foroughi M, Gholami Z. Efficient removal of levofloxacin by a magnetic NiFe-LDH/N-MWCNTs nanocomposite: Characterization, response surface methodology, and mechanism. ENVIRONMENTAL RESEARCH 2022; 215:113967. [PMID: 35985483 DOI: 10.1016/j.envres.2022.113967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 07/06/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Antibiotic pollutants in water bodies, was studied to remove using an oxidized, nitrogen-doped, and Fe3O4 and NiFe-LDH decorated MWCNT (magnetic NiFe-LDH/N-MWCNTs) nanocomposite (NC). The novel, engineered NC was characterized by different techniques of SEM, XRD, TEM, EDX, and XPS and then examined under different main effective parameters of NC dose, levofloxacin (LVX) concentration, pH, time, and temprature. The experimentally obtained data then evaluated using the modeling approaches of RSM, GRNN, and ANFIS. The as prepared adsorbent showed an excellent adsorption performance (removal efficiency = 95.28% and adsorption capacity = 344.83-454.55 mg/g) under the respective values of the mentioned parameters of 0.152 g, 23.01 mg/L, 12.00 min, and 37.5 °C, respectively. The comparison of the models showed that although all of them accurately predicted the removal efficiency, ANFIS presented the best capability with R2, RMSE, MSE, MAE, as well as AAD of 0.9998, 0.0082, -0.0004, 0.0069, 0.1322, respectively. The adsorption by the NC followed Freundlich isotherm (R2 = 0.9993) and PSO kinetic (>0.998) models, confirming a heterogenous chemisorption process. The thermodynamic parameters showed an endothermic and spontaneous nature for LVX removal by magnetic NiFe-LDH/N-MWCNTs NC. A high-performance efficiency, appropriate reusability (five times without loss of efficiency), as well as easy separation due to magnetic properties, makes the NC to a promising option in removing LVX from water.
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Affiliation(s)
| | - Maryam Foroughi
- Department of Environmental Health Engineering, School of Health, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran; Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran.
| | - Zahra Gholami
- Department of Chemistry, Omidi yeh Branch, Islamic Azad University, Omidiyeh, 6373193719, Iran
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Navya KN, Sujatha CH. Removing Deterrents Using Synthesized Hydrogel-Carboxymethyl Cellulose and Tannic Acid. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00476-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Ebrahimian F, Denayer JFM, Karimi K. Potato peel waste biorefinery for the sustainable production of biofuels, bioplastics, and biosorbents. BIORESOURCE TECHNOLOGY 2022; 360:127609. [PMID: 35840021 DOI: 10.1016/j.biortech.2022.127609] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Potato is the fourth most abundant crop harvested annually worldwide. Potato peel waste (PPW) is the main waste stream of potato-processing industries which is generated in large quantities and is a threat to the environment globally. However, owing to its compositional characteristics, availability, and zero cost, PPW is a renewable resource for the production of high-value bioproducts. Hence, this study provides a state-of-the-art overview of advancements in PPW valorization through biological and thermochemical conversions. PPW has a high potential for biofuel and biochemical generation through detoxification, pretreatment, hydrolysis, and fermentation. Moreover, many other valuable chemicals, including bio-oil, biochar, and biosorbents, can be produced via thermochemical conversions. However, several challenges are associated with the biological and thermochemical processing of PPW. The insights provided in this review pave the way toward a PPW-based biorefinery development, providing sustainable alternatives to fossil-based products and mitigating environmental concerns.
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Affiliation(s)
- Farinaz Ebrahimian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Joeri F M Denayer
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium.
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Abstract
Growing environmental concerns, increased population, and the need to meet the diversification of the source of global energy have led to increased demand for biofuels. However, the high cost of raw materials for biofuels production has continued to slow down the acceptability, universal accessibility, and affordability of biofuels. The cost of feedstock and catalysts constitutes a major component of the production cost of biofuels. Potato is one of the most commonly consumed food crops among various populations due to its rich nutritional, health, and industrial benefits. In the current study, the application of potato peel waste (PPW) for biofuel production was interrogated. The present state of the conversion of PPW to bioethanol and biogas, through various techniques, to meet the ever-growing demand for renewable fuels was reviewed. To satisfy the escalating demand for biohydrogen for various applications, the prospects for the synthesis of biohydrogen from PPW were proposed. Additionally, there is the potential to convert PPW to low-cost, ecologically friendly, and biodegradable bio-based catalysts to replace commercial catalysts. The information provided in this review will enrich scholarship and open a new vista in the utilization of PPW. More focused investigations are required to unravel more avenues for the utilization of PPW as a low-cost and readily available catalyst and feedstock for biofuel synthesis. The application of PPW for biofuel application will reduce the pump price of biofuels, ensure the appropriate disposal of waste, and contribute towards environmental cleanliness.
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Sassi W, Boubaker H, Ben-Khaled H, Dhaoui S, Ghorbal A, Hihn JY. Modelization and implementation of free adsorption and electrosorption of Cr (VI) from wastewater using Al 2O 3 nanoparticles: assessment and comparison of the two processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:28349-28366. [PMID: 33538973 DOI: 10.1007/s11356-021-12612-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
The objective of this study was to apply the technique of electrosorption in order to assess the capacity of heterogeneous adsorption under an electric field. This was to enhance the adsorption capacity of the nanoparticles, to shorten the adsorption time, and to reduce the cost of the purification of contaminated waters. A final objective of this study was to compare the free adsorption (FA) and the electrosorption (ES) to understand the interface adsorbent/adsorbate at different contact conditions. For these purposes, a potentially efficient, environment-friendly absorbent was synthesized for dechromation purposes. The experimental design method generated optimum conditions as tc = 123 min, T = 318°K, and C0 = 100 mg/L. Freundlich's well-fitted modeling proved that the adsorption of chromate (VI) on nano-Al2O3 occurred on a homogenous surface. In addition, the adsorption coefficient intensity n did not only confirm monolayer adsorption but also indicated a favorable adsorption process. Thermodynamic studies confirmed the reaction spontaneity and the physisorption of the process. The electrosorption process was also tested using 20mA/cm2 as applied current density. Free-adsorption (FA) and electrosorption (ES) processes were compared. The maximum recorded yield was 99% for (EA) against 87% for (FA). EDS analysis recorded 11.3% of chromate adsorbate with free adsorption. The amount of Cr (VI) on nano-Al2O3 was 42.5 %. Nevertheless, the Al2O3 nanoparticles lost their crystallinity and exploded after the ES process. Mechanisms of both (FA) and (ES) were proposed.
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Affiliation(s)
- Wafa Sassi
- Higher Institute of Applied Sciences and Technology of Gabes, Gabes University, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia.
- Unité de Recherche Electrochimie, Matériaux et Environnement UREME (UR17ES45), Faculté des Sciences de Gabès, Université de Gabès, Cité Erriadh, 6072, Gabès, Tunisia.
| | - Hana Boubaker
- Research Laboratory LR18ES33, National Engineering School of Gabes, University of Gabes, Avenue Omar Ibn El Khattab, 6029, Gabès, Tunisia
| | - Hayet Ben-Khaled
- Higher Institute of Applied Sciences and Technology of Gabes, Gabes University, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia
| | - Sana Dhaoui
- Higher Institute of Applied Sciences and Technology of Gabes, Gabes University, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia
| | - Achraf Ghorbal
- Higher Institute of Applied Sciences and Technology of Gabes, Gabes University, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia
- Research Laboratory LR18ES33, National Engineering School of Gabes, University of Gabes, Avenue Omar Ibn El Khattab, 6029, Gabès, Tunisia
| | - Jean-Yves Hihn
- Institut UTINAM, CNRS UMR 6213, Univ Bourgogne Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France
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Abstract
Activated carbon obtained from Opuntia ficus indica by sodium hydroxide activation was employed for the adsorption of p-nitrophenol from water. The activated carbons obtained were characterized by Fourier transforms infrared spectroscopy, sorption of nitrogen, scanning electron microscopy, and Boehm titration. Effects of pH, contact time, amount of adsorbent, and temperature on the adsorption of p-nitrophenol were studied. Adsorption isotherms were analyzed using Freundlich, Langmuir, Temkin, and Dubinin-Radushkevich models, and the thermodynamic parameters have been determined. The adsorption of p-nitrophenol was spontaneous, exothermic, and propitious at 15 °C and adopted the pseudo-second order model, and the most credible isotherm was Langmuir’s one. The activated carbon used in this work has good p-nitrophenol adsorption characteristics, and the study of the desorption and reuse of this carbon shows that it retains a removal rate greater than 94% after five cycles of adsorption-desorption.
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Biochar from the Thermochemical Conversion of Orange (Citrus sinensis) Peel and Albedo: Product Quality and Potential Applications. CHEMISTRY AFRICA 2020. [DOI: 10.1007/s42250-020-00119-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Chang CC, Li R. Agricultural waste. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1150-1167. [PMID: 31433884 DOI: 10.1002/wer.1211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
The management of agricultural waste has become very important because the inappropriate disposal yields negative effects on the environment. The resource recovery from agricultural waste which converts waste into available resources can reduce the waste and new resource consumption. This review summarizes the 2018 researches of over three hundred scholar papers from several aspects: agricultural waste, and, waste chemical characterization, agricultural waste material, adsorption, waste energy, composting, waste biogas, agricultural waste management, and others.
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Affiliation(s)
- Chein-Chi Chang
- College of Energy and Environment, Shenyang Aerospace University, Shenyang, China
- Department of Engineering and Technical Services, DC Water and Sewer Authority, Washington, DC, USA
| | - Rundong Li
- College of Energy and Environment, Shenyang Aerospace University, Shenyang, China
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Physicochemical Assessment of Borehole Water in a Reclaimed Section of Nekede Mechanic Village, Imo State, Nigeria. CHEMISTRY AFRICA 2019. [DOI: 10.1007/s42250-019-00077-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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