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Raj V, Chauhan MS, Pal SL. Potential of sugarcane bagasse in remediation of heavy metals: A review. CHEMOSPHERE 2022; 307:135825. [PMID: 35948091 DOI: 10.1016/j.chemosphere.2022.135825] [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: 05/10/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Presence of heavy metal (HM) ions in wastewater have emerged as among the most prominent issues for improving water quality and reducing it's consequences for the environment, animal and public health. This paper mainly focuses on the remediation of HM ions from wastewater utilizing the relatively inexpensive and widely accessible agricultural waste-Sugarcane Bagasse (SCB). For this, a brief understanding of HMs was discussed (by understanding the sources and toxicity of HM, advantages and shortcomings of conventional processes). Apart from that, to understand the potential of SCB, this review would provide vital information on employing SCB biosorbent in natural and modified forms for HM removal. Therefore, various ways of SCB modifications (including physical, chemical, and composite formation), essential optimal operational conditions (solution pH, dosage of biosorbent, initial metal concentration, contact time, agitation speed, temperature, suitable isotherm and kinetic model) and involving adsorption mechanism were also studied. Finally, significant study gaps were identified to facilitate future research since SCB has been confirmed as a potential bio-adsorbent for removing HM ions.
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Affiliation(s)
- Vinay Raj
- Department of Civil Engineering, Maulana Azad National Institute of Technology, Bhopal, 462003, Madhya Pradesh, India.
| | - Mrityunjay Singh Chauhan
- Department of Civil Engineering, Maulana Azad National Institute of Technology, Bhopal, 462003, Madhya Pradesh, India.
| | - Sunder Lal Pal
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, 462003, Madhya Pradesh, India.
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Panariello L, Coltelli MB, Giangrandi S, Garrigós MC, Hadrich A, Lazzeri A, Cinelli P. Influence of Functional Bio-Based Coatings including Chitin Nanofibrils or Polyphenols on Mechanical Properties of Paper Tissues. Polymers (Basel) 2022; 14:polym14112274. [PMID: 35683945 PMCID: PMC9182755 DOI: 10.3390/polym14112274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 02/01/2023] Open
Abstract
The paper tissue industry is a constantly evolving sector that supplies markets that require products with different specific properties. In order to meet the demand of functional properties, ensuring a green approach at the same time, research on bio-coatings has been very active in recent decades. The attention dedicated to research on functional properties has not been given to the study of the morphological and mechanical properties of the final products. This paper studied the effect of two representative bio-based coatings on paper tissue. Coatings based on chitin nanofibrils or polyphenols were sprayed on paper tissues to provide them, respectively, with antibacterial and antioxidant activity. The chemical structure of the obtained samples was preliminarily compared by ATR-FTIR before and after their application. Coatings were applied on paper tissues and, after drying, their homogeneity was investigated by ATR-FTIR on different surface areas. Antimicrobial and antioxidant properties were found for chitin nanofibrils- and polyphenols-treated paper tissues, respectively. The mechanical properties of treated and untreated paper tissues were studied, considering as a reference the same tissue paper sample treated only with water. Different mechanical tests were performed on tissues, including penetration, tensile, and tearing tests in two perpendicular directions, to consider the anisotropy of the produced tissues for industrial applications. The morphology of uncoated and coated paper tissues was analysed by field emission scanning electron microscopy. Results from mechanical properties evidenced a correlation between morphological and mechanical changes. The addition of polyphenols resulted in a reduction in mechanical resistance, while the addition of chitin enhanced this property. This study evidenced the different effects produced by two novel coatings on paper tissues for personal care in terms of properties and structure.
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Affiliation(s)
- Luca Panariello
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Firenze, Italy
- Department of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, Italy;
| | - Maria-Beatrice Coltelli
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Firenze, Italy
- Department of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, Italy;
- Correspondence: (M.-B.C.); (P.C.)
| | | | - María Carmen Garrigós
- Department of Analytical Chemistry, Nutrition and Food Sciences, University of Alicante, 03080 Alicante, Spain;
| | - Ahdi Hadrich
- Biomass Valorization Platform-Materials, CELABOR s.c.r.l., 4650 Chaineux, Belgium;
| | - Andrea Lazzeri
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Firenze, Italy
- Department of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, Italy;
- Planet Bioplastics s.r.l., 56127 Pisa, Italy;
| | - Patrizia Cinelli
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Firenze, Italy
- Department of Civil and Industrial Engineering, University of Pisa, 56126 Pisa, Italy;
- Correspondence: (M.-B.C.); (P.C.)
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White Grape Pomace Valorization for Remediating Purposes. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12041997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present investigation focuses on a possible alternative to reduce grape pomace’s negative impact on the environment by exploiting its capacities for wastewater remediation. Therefore, three directions are followed: (1) the characterization of white grape byproducts’ antioxidant and antiradical properties; (2) the determination of organophosphorus compound concentration that might be present in the samples; and (3) the evaluation of the possible use for wastewater remediation. The grape pomace was used for obtaining different extracts considering different extraction conditions. The hydroalcoholic extracts have an increased amount of total phenolic content. The lyophilized hydroalcoholic extract showed high total phenolic content (159.52 mg/100 g) and low organophosphorus content (0.257 ± 0.015 nmol). The lowest DPPH antiradical-scavenging activities were obtained for the extracts in ethanol obtained from refrigerated pomace (0.055) and for dried pomace (0.045).
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Manikandan S, Subbaiya R, Saravanan M, Ponraj M, Selvam M, Pugazhendhi A. A critical review of advanced nanotechnology and hybrid membrane based water recycling, reuse, and wastewater treatment processes. CHEMOSPHERE 2022; 289:132867. [PMID: 34774910 DOI: 10.1016/j.chemosphere.2021.132867] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/20/2021] [Accepted: 11/08/2021] [Indexed: 05/28/2023]
Abstract
One of the modern challenges is to provide clean and affordable drinking water. Water scarcity is caused by the growing population in the world and pollutants contaminate all remaining water sources. Innovative water treatment solutions have been provided by nanotechnology. Microorganisms, organic suspensions, and inorganic heavy metal ions, among other things, are common water contaminants. Since antiquity, a wide range of water clean-up methods have been employed to address this issue. Breakthroughs in water purification procedures have occurred during the previous four decades, with the most significant one being the use of nanomaterials and nanomembranes. Nanoparticles and nanomembranes (polymeric membranes) have recently been used in engineered materials (TiO2, ZnO, CuO, Ag, CNT's and mixed oxide nanoparticles, for example). Engineered nanomembranes, nanocomposites and nanoparticles have been used in this review article's discussion of water purification technologies. The review also discusses the risk and solutions of using nanoparticles and nanocomposites in the future.
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Affiliation(s)
- Sivasubramanian Manikandan
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha Nagar, Thandalam, Chennai, 602 105, Tamil Nadu, India
| | - Ramasamy Subbaiya
- Department of Biological Sciences, School of Mathematics and Natural Sciences, The Copperbelt University, Riverside, Jambo Drive, P O Box, 21692, Kitwe, Zambia
| | - Muthupandian Saravanan
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 60007, Chennai, India.
| | - Mohanadoss Ponraj
- Department of Biological Sciences, School of Mathematics and Natural Sciences, The Copperbelt University, Riverside, Jambo Drive, P O Box, 21692, Kitwe, Zambia
| | - Masilamani Selvam
- Department of Biotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Chennai, 600 095, Tamil Nadu, India
| | - Arivalagan Pugazhendhi
- School of Renewable Energy, Maejo University, Chiang Mai, Thailand; College of Medical and Health Science, Asia University, Taichung, Taiwan.
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