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Cong R, Cai T, Ge-Zhang S, Yang H, Zhang C. Fabrication of PVA-Silica Sol Wood Composites via Delignification and Freezing Pretreatment. Polymers (Basel) 2024; 16:1949. [PMID: 39000804 PMCID: PMC11243807 DOI: 10.3390/polym16131949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/14/2024] [Accepted: 06/27/2024] [Indexed: 07/17/2024] Open
Abstract
The efficient exploitation of planted fast-growing wood is crucial for enhancing wood resource utilization. In this study, the fast-growing poplar wood was modified by in situ impregnation through vacuum impregnation with polyvinyl alcohol and nano-silica sol as impregnation modifiers, combined with delignification-freezing pretreatment. The samples were characterized by FTIR, XRD, SEM, and the universal mechanical testing machine. The results showed that the wrinkle deformation and cracking of the wood blocks were greatly alleviated after the delignification-freezing pretreatment and the polyvinyl alcohol and nano-silica sol were successfully integrated into the wood. The resulting polyvinyl alcohol-silica sol poplar composites exhibited about 216%, 80% and 43% higher compressive strength with respect to delignified wood, natural wood and impregnated natural wood, respectively, thereby demonstrating superior mechanical properties and potential opportunities for value-added and efficient utilization of low-quality wood.
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Affiliation(s)
- Rizheng Cong
- School of Civil Engineering and Transportation, Northeast Forestry University, Harbin 150040, China
| | - Taoyang Cai
- Aulin College, Northeast Forestry University, Harbin 150040, China
| | - Shangjie Ge-Zhang
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Hong Yang
- Research Institute of Intelligent Control and Systems, Harbin Institute of Technology, Harbin 150040, China
| | - Chang Zhang
- College of Science, Northeast Forestry University, Harbin 150040, China
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2
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Bediako JK, Apalangya V, Hodgson IOA, Anugwom I, Repo E. Adsorbents for water decontamination: A recycling alternative for fiber precursors and textile fiber wastes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:171000. [PMID: 38365021 DOI: 10.1016/j.scitotenv.2024.171000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
The exponential growth in textile fiber production and commensurate release of textile waste-based effluents into the environment has significant impacts on human wellbeing and the long-term planetary health. To abate these negative impacts and promote resource circularity, efforts are being made to recycle these waste materials via conversion into adsorbents for water decontamination. This review critically examines plant- and regenerated cellulose-based fibers for removing water pollutants such as heavy metals, dyes, pharmaceutical and petrochemical wastes. The review reveals that chemical modification reactions such as grafting, sulfonation, carboxymethylation, amination, amidoximation, xanthation, carbon activation, and surface coating are normally employed, and the adsorption mechanisms often involve Van der Waals attraction, electrostatic interaction, complexation, chelation, ion exchange, and precipitation. Furthermore, the adsorption processes and thus the adsorption mechanisms are influenced by factors such as surface properties of adsorbents, pollutant characteristics including composition, porosity/pore size distribution, specific surface area, hydrophobicity/hydrophobicity, and molecular interactions. Besides, feasibility of the approaches in terms of handling and reuse, environmental fate, and economic impact was evaluated, in addition to the performances of the adsorbents, the prospects, and challenges. As current cost analysis is non-exhaustive, it is recommended that researchers focus on extensive cost analysis to fully appreciate the true cost effectiveness of employing these waste materials. In addition, more attention must be paid to potential chemical leaching, post-adsorption handling, and disposal. Based on the review, fiber precursors and textile fiber wastes are viable alternative adsorbents for sustainable water treatment and environmental management, and government entities must leverage on these locally accessible materials to promote recyclability and circularity.
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Affiliation(s)
- John Kwame Bediako
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland; Department of Food Process Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 77, Legon, Accra, Ghana.
| | - Vitus Apalangya
- Department of Food Process Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 77, Legon, Accra, Ghana
| | - Isaac O A Hodgson
- Department of Food Process Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 77, Legon, Accra, Ghana; Council for Scientific and Industrial Research (CSIR)-Water Research Institute, P. O. Box M 32, Accra, Ghana
| | - Ikenna Anugwom
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland
| | - Eveliina Repo
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland
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3
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Karim A, Raji Z, Karam A, Khalloufi S. Valorization of Fibrous Plant-Based Food Waste as Biosorbents for Remediation of Heavy Metals from Wastewater-A Review. Molecules 2023; 28:molecules28104205. [PMID: 37241944 DOI: 10.3390/molecules28104205] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Mobilization of heavy metals in the environment has been a matter of concern for several decades due to their toxicity for humans, environments, and other living organisms. In recent years, use of inexpensive and abundantly available biosorbents generated from fibrous plant-based food-waste materials to remove heavy metals has garnered considerable research attention. The aim of this review is to investigate the applicability of using fibrous plant-based food waste, which comprises different components such as pectin, hemicellulose, cellulose, and lignin, to remove heavy metals from wastewater. This contribution confirms that plant-fiber-based food waste has the potential to bind heavy metals from wastewater and aqueous solutions. The binding capacities of these biosorbents vary depending on the source, chemical structure, type of metal, modification technology applied, and process conditions used to improve functionalities. This review concludes with a discussion of arguments and prospects, as well as future research directions, to support valorization of fibrous plant-based food waste as an efficient and promising strategy for water purification.
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Affiliation(s)
- Ahasanul Karim
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Zarifeh Raji
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Antoine Karam
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
| | - Seddik Khalloufi
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
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Tofan L. Insights into the Applications of Natural Fibers to Metal Separation from Aqueous Solutions. Polymers (Basel) 2023; 15:polym15092178. [PMID: 37177324 PMCID: PMC10181014 DOI: 10.3390/polym15092178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/28/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
There is a wide range of renewable materials with attractive prospects for the development of green technologies for the removal and recovery of metals from aqueous streams. A special category among them are natural fibers of biological origin, which combine remarkable biosorption properties with the adaptability of useful forms for cleanup and recycling purposes. To support the efficient exploitation of these advantages, this article reviews the current state of research on the potential and real applications of natural cellulosic and protein fibers as biosorbents for the sequestration of metals from aqueous solutions. The discussion on the scientific literature reports is made in sections that consider the classification and characterization of natural fibers and the analysis of performances of lignocellulosic biofibers and wool, silk, and human hair waste fibers to the metal uptake from diluted aqueous solutions. Finally, future research directions are recommended. Compared to other reviews, this work debates, systematizes, and correlates the available data on the metal biosorption on plant and protein biofibers, under non-competitive and competitive conditions, from synthetic, simulated, and real solutions, providing a deep insight into the biosorbents based on both types of eco-friendly fibers.
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Affiliation(s)
- Lavinia Tofan
- Department of Environmental Engineering and Management, "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, "Gheorghe Asachi" Technical University of Iasi, 73 Prof.Dr. D. Mangeron Blvd., 700050 Iasi, Romania
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Liu J, Zhang C, Tao B, Beckerman J. Revealing the roles of biomass components in the biosorption of heavy metals in wastewater by various chemically treated hemp stalks. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Luyckx M, Hausman JF, Guerriero G, Lutts S. Silicon reduces zinc absorption and triggers oxidative tolerance processes without impacting growth in young plants of hemp (Cannabis sativa L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:943-955. [PMID: 35907072 DOI: 10.1007/s11356-022-21797-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Hemp (Cannabis sativa L.) is a promising crop for non-food agricultural production on soils contaminated by moderate doses of heavy metals, while silicon, as a beneficial element, is frequently reported to improve stressed plant behavior. Using a hydroponic system, plants of Cannabis sativa (cv. Santhica 27) were exposed for 1 week to 100 µM Zn in the presence or absence of 2 mM Si. Zinc accumulated in all plant organs but was mainly sequestered in the roots. Additional Si reduced Zn absorption but had no impact on Zn translocation. Zn accumulation had a slight negative impact on leaf number, stem length, and chlorophyll content, and additional Si did not mitigate these symptoms. Exogenous Si reduced the Zn-induced membrane lipid peroxidation (assessed by malondialdehyde quantification) and increased the total antioxidant activities estimated by the FRAP index. In the absence of Si, leaf phytochelatin and total glutathione were the highest in Zn-treated plants and Si significantly decreased their concentrations.
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Affiliation(s)
- Marie Luyckx
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute - Agronomy (ELIA), Université Catholique de Louvain, 5 (Bte13) Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium.
| | - Jean-François Hausman
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, 4362, Esch/Alzette, Luxembourg
| | - Gea Guerriero
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, 4362, Esch/Alzette, Luxembourg
| | - Stanley Lutts
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute - Agronomy (ELIA), Université Catholique de Louvain, 5 (Bte13) Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium
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7
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Evaluation of Original and Enzyme-Modified Fique Fibers as an Azo Dye Biosorbent Material. WATER 2022. [DOI: 10.3390/w14071035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
As natural fibers, low-cost biosorbents have proven to be an effective and clean tool to remove textile dyes from wastewater. In this research, the Reactive Black 5 removal ability of original and enzyme-modified natural fibers were assessed. A fiber extracted from a Colombian fique plant (Furcraea sp.) was employed. The effects of fique fiber protonation with different solvents and dye solution pH on RB5 removal were evaluated. The biosorbent chemical composition was modified using the commercial enzymes pectinase, ligninase, and xylanase. The point of zero charge (PZC) of the original and modified material was measured, and the dye removal capacity of the three enzyme-modified fibers was determined. Fiber protonation with 0.1 M HCl and a dye solution with pH of 2.4 increased the RB5 elimination to 49.1%. The change in the fiber chemical composition led to a reduction in the PZC from 5.5 to a 4.7–4.9 range. Pectinase-pretreated fique fibers presented the highest dye removal of 66.29%, representing a 36% increase in RB5 dye removal. Although the original fique fiber showed RB5 dye removal ability, its enzymatic modification changed the charge distribution on the fiber surface, improving the capture of dye molecules. Enzyme modification can be applied to obtain new functionalities for plant fibers as biosorbent materials.
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Luyckx M, Hausman JF, Sergeant K, Guerriero G, Lutts S. Molecular and Biochemical Insights Into Early Responses of Hemp to Cd and Zn Exposure and the Potential Effect of Si on Stress Response. FRONTIERS IN PLANT SCIENCE 2021; 12:711853. [PMID: 34539703 PMCID: PMC8446647 DOI: 10.3389/fpls.2021.711853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
With the intensification of human activities, plants are more frequently exposed to heavy metals (HM). Zinc (Zn) and cadmium (Cd) are frequently and simultaneously found in contaminated soils, including agronomic soils contaminated by the atmospheric fallout near smelters. The fiber crop Cannabis sativa L. is a suitable alternative to food crops for crop cultivation on these soils. In this study, Cd (20 μM) and Zn (100 μM) were shown to induce comparable growth inhibition in C. sativa. To devise agricultural strategies aimed at improving crop yield, the effect of silicon (Si; 2 mM) on the stress tolerance of plants was considered. Targeted gene expression and proteomic analysis were performed on leaves and roots after 1 week of treatment. Both Cd- and Zn-stimulated genes involved in proline biosynthesis [pyrroline-5-carboxylate reductase (P5CR)] and phenylpropanoid pathway [phenylalanine ammonia-lyase (PAL)] but Cd also specifically increased the expression of PCS1-1 involved in phytochelatin (PC) synthesis. Si exposure influences the expression of numerous genes in a contrasting way in Cd- and Zn-exposed plants. At the leaf level, the accumulation of 122 proteins was affected by Cd, whereas 47 proteins were affected by Zn: only 16 proteins were affected by both Cd and Zn. The number of proteins affected due to Si exposure (27) alone was by far lower, and 12 were not modified by heavy metal treatment while no common protein seemed to be modified by both CdSi and ZnSi treatment. It is concluded that Cd and Zn had a clear different impact on plant metabolism and that Si confers a specific physiological status to stressed plants, with quite distinct impacts on hemp proteome depending on the considered heavy metal.
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Affiliation(s)
- Marie Luyckx
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute – Agronomy (ELI-A), Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Jean-François Hausman
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Esch-sur-Alzette, Luxembourg
| | - Kjell Sergeant
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Esch-sur-Alzette, Luxembourg
| | - Gea Guerriero
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Esch-sur-Alzette, Luxembourg
| | - Stanley Lutts
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute – Agronomy (ELI-A), Université catholique de Louvain, Louvain-la-Neuve, Belgium
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9
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A Strategy to Revalue a Wood Waste for Simultaneous Cadmium Removal and Wastewater Disinfection. ADSORPT SCI TECHNOL 2021. [DOI: 10.1155/2021/3552300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this investigation, the possibility of wood waste (hardwoods such as oaks’ and alternatives’ staves from Balkan cooperage) revalorization for simultaneous cadmium removal and wastewater disinfection was examined. All samples were characterized in terms of their crystallinity index and crystallite size, amount of functional groups, and surface chemistry (determined by ATR-FTIR) as well as antibacterial activity. Mulberry is characterized by the lowest crystallinity index which can be ascribed to the highest crystallite size disabling crystallite denser packaging, while myrobalan plum has about 23% lower crystallite size that enables crystallite better packaging, thus resulting in a 42.4% higher crystallinity index compared to the mulberry. All oaks have a significantly higher amount of carboxyl groups compared to the alternatives (0.23-0.28 vs. 0.12-0.19 mmol/g). The adsorption experiments revealed that with increasing the initial cadmium concentration from 15 up to 55 mg/g, samples’ adsorption capacity increases by 89-220%. The equilibrium data fit well with the Langmuir isotherm model implying monolayer coverage of cadmium ions over a homogeneous wood surface. The relationship between the samples’ maximum adsorption capacities (ranged from 5.726 to 12.618 mg/g), their crystallinity index, and crystallite size was established. According to ATR-FTIR spectra, aldehyde, carboxyl, hydroxyl, and phenyl groups present on the wood waste surface are involved in Cd2+ adsorption which proceeds via the interplay of the complexation, cation-π interactions, and ion-exchange mechanisms. Mulberry and myrobalan plum showed about 89% and 80% of the total uptake capacity of cadmium within 60 min, while the equilibrium was attained after 240 min of contact time. Good compliance with pseudo-second kinetic order indicated that cadmium adsorption was mediated by chemical forces. Thermodynamic parameters revealed the spontaneous and exothermic character of cadmium ion adsorption onto mulberry and myrobalan plum. All studied samples provide maximum bacterial reduction (>99%) for E. coli and S. aureus. Wood waste from Balkan cooperage can be successfully used for simultaneous cadmium removal and wastewater disinfection.
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Use of Chènevotte, a Valuable Co-Product of Industrial Hemp Fiber, as Adsorbent for Pollutant Removal. Part I: Chemical, Microscopic, Spectroscopic and Thermogravimetric Characterization of Raw and Modified Samples. Molecules 2021; 26:molecules26154574. [PMID: 34361726 PMCID: PMC8348367 DOI: 10.3390/molecules26154574] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 11/17/2022] Open
Abstract
FINEAU (2021–2024) is a trans-disciplinary research project involving French, Serbian, Italian, Portuguese and Romanian colleagues, a French agricultural cooperative and two surface-treatment industries, intending to propose chènevotte, a co-product of the hemp industry, as an adsorbent for the removal of pollutants from polycontaminated wastewater. The first objective of FINEAU was to prepare and characterize chènevotte-based materials. In this study, the impact of water washing and treatments (KOH, Na2CO3 and H3PO4) on the composition and structure of chènevotte (also called hemp shives) was evaluated using chemical analysis, X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray computed nanotomography (nano-CT), attenuated total reflectance–Fourier transform infrared (ATR-FTIR) spectroscopy, solid state NMR spectroscopy and thermogravimetric analysis. The results showed that all these techniques are complementary and useful to characterize the structure and morphology of the samples. Before any chemical treatment, the presence of impurities with a compact unfibrillated structure on the surfaces of chènevotte samples was found. Data indicated an increase in the crystallinity index and significant changes in the chemical composition of each sample after treatment as well as in surface morphology and roughness. The most significant changes were observed in alkaline-treated samples, especially those treated with KOH.
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Luyckx M, Hausman JF, Blanquet M, Guerriero G, Lutts S. Silicon reduces cadmium absorption and increases root-to-shoot translocation without impacting growth in young plants of hemp (Cannabis sativa L.) on a short-term basis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:37963-37977. [PMID: 33728605 DOI: 10.1007/s11356-021-12912-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
Textile hemp (Cannabis sativa L.) is a non-edible multipurpose crop suitable for fiber production and/or phytoremediation on moderately heavy metal-contaminated soils. Experiments were conducted in nutrient solution to assess the short-term impact of silicon (Si), a well-known beneficial element, on plants exposed to 20 μM cadmium (Cd) in nutrient solution. Cd decreased plant growth and affected photosynthesis through non-stomatal effects. Cd translocation factor was higher than 1, confirming the interest of hemp for phytoextraction purposes. Additional Si did not improve plant growth after 1 week of treatment but decreased Cd accumulation in all organs and improved water use efficiency through a decrease in transpiration rate. Si had only marginal impact on Cd distribution among organs. It increased glutathione and phytochelatin synthesis allowing the plants to efficiently cope with oxidative stress through the improvement of Cd sequestration on thiol groups in the roots. Si may thus have a fast impact on the plant behavior before the occurrence of plant growth stimulation.
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Affiliation(s)
- Marie Luyckx
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute (Agronomy), Université catholique de Louvain, 5 (Bte 7.07.13) Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium
| | - Jean-François Hausman
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), Hautcharage, Luxembourg
| | - Mathilde Blanquet
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute (Agronomy), Université catholique de Louvain, 5 (Bte 7.07.13) Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium
| | - Gea Guerriero
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), Hautcharage, Luxembourg
| | - Stanley Lutts
- Groupe de Recherche en Physiologie végétale, Earth and Life Institute (Agronomy), Université catholique de Louvain, 5 (Bte 7.07.13) Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium.
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Wu Q, Ren M, Zhang X, Li C, Li T, Yang Z, Chen Z, Wang L. Comparison of Cd(II) adsorption properties onto cellulose, hemicellulose and lignin extracted from rice bran. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111230] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Mohammadabadi SI, Javanbakht V. Lignin extraction from barley straw using ultrasound-assisted treatment method for a lignin-based biocomposite preparation with remarkable adsorption capacity for heavy metal. Int J Biol Macromol 2020; 164:1133-1148. [PMID: 32679319 DOI: 10.1016/j.ijbiomac.2020.07.074] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/10/2020] [Accepted: 07/08/2020] [Indexed: 01/01/2023]
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14
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Kajeiou M, Alem A, Mezghich S, Ahfir ND, Mignot M, Devouge-Boyer C, Pantet A. Competitive and non-competitive zinc, copper and lead biosorption from aqueous solutions onto flax fibers. CHEMOSPHERE 2020; 260:127505. [PMID: 32683021 DOI: 10.1016/j.chemosphere.2020.127505] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 05/08/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
Competitive and non-competitive batch experiments were conducted on flax fibers to study Zn2+, Cu2+, and Pb2+ ions biosorption performance. Biosorption efficiency was dependent on contact time, pH, and biosorbent concentration. The results under competitive conditions were different from those obtained in non-competitive form. A high affinity of lead, with a selectivity sequence in general of Pb > Cu > Zn was observed. The biosorption data fitted very well the Langmuir model for lead in both types of solutions and for zinc and copper in the monometal form. The fit with the Freundlich model was not as successful, except for copper in the ternary system. Regarding zinc under competitive conditions, the sorption process was quite difficult and thus the equilibrium data could not fit well the adsorption models. The maximum adsorption capacities (mmol.kg-1) were respectively 112, 122 and 71, for Pb, Cu and Zn in the single metal ion solution and 82, 57 and 8 only in the ternary, showing thus a high competition between metal ions when added simultaneously. Overall, lead could still be efficiently removed in spite of the presence of other ions while zinc would be overcome in the presence of lead and copper.
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Affiliation(s)
- Meriem Kajeiou
- Normandie Univ, UNIHAVRE, UMR 6294 CNRS, LOMC, 76600, Le Havre, France.
| | - Abdellah Alem
- Normandie Univ, UNIHAVRE, UMR 6294 CNRS, LOMC, 76600, Le Havre, France
| | - Soumaya Mezghich
- Normandie Univ, INSA Rouen, UMR 6014 CNRS, COBRA, 76801, Saint Etienne Du Rouvray, France
| | - Nasre-Dine Ahfir
- Normandie Univ, UNIHAVRE, UMR 6294 CNRS, LOMC, 76600, Le Havre, France
| | - Mélanie Mignot
- Normandie Univ, INSA Rouen, UMR 6014 CNRS, COBRA, 76801, Saint Etienne Du Rouvray, France
| | | | - Anne Pantet
- Normandie Univ, UNIHAVRE, UMR 6294 CNRS, LOMC, 76600, Le Havre, France
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15
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Mohammadabadi SI, Javanbakht V. Development of hybrid gel beads of lignocellulosic compounds derived from agricultural waste: Efficient lead adsorbents for a comparative biosorption. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Aeroelastic Response of Suspended Pedestrian Bridges Made of Laminated Wood and Hemp. INFRASTRUCTURES 2020. [DOI: 10.3390/infrastructures5070060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The work described in this paper investigated, by calculating critical flutter speed, the aeroelastic response of suspended pedestrian bridges made of a laminated wood structure and hemp cables and compared them to bridges with a steel structure and harmonic steel cables. Critical flutter speed was estimated using a numerical two degree of freedom (2-DOF) generalized deck model based on finite-element modal analysis. The critical flutter speeds of two sets of 25 different structural configurations, obtained by varying the deck chord and the permanent deck loads, made of steel and of laminated wood respectively, were estimated using experimental flutter derivatives obtained from 30 wind tunnel experiments. One of the most significant results was that pedestrian bridges made of laminated wood and hemp have a higher torsional frequency than those made of steel and that this affects critical flutter speed. A case study was performed and discussed by analyzing the structural and aeroelastic response of a 250 m pedestrian bridge with a 12 m deck chord and two approximately 32 m tall towers.
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Utilization of Jengkol Peel (Pithecellobium jiringa (Jack) Prain) as Lead (II) Ions Bio-sorbent with Column Method. JURNAL KIMIA SAINS DAN APLIKASI 2020. [DOI: 10.14710/jksa.23.5.160-166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Problems arising from laboratory waste include the content of lead metal ions in it, which can affect health. While on the other hand, Jengkol peel is a market waste and has no economic value. Jengkol peel contains hydroxyl groups and carboxylates to bind heavy metals such as lead (II) ions. So, this study aims to determine the effect of variations in flow rate, adsorbent height, and solution acidity and determine the ability of Jengkol peel in adsorbing lead (II) ions in the laboratory liquid by the column method. Organic groups that include active sides can be removed using 1N sodium hydroxide to increase the adsorption ability. Sodium hydroxide functions to dissolve lignin in lignocellulose compounds so that carboxylic groups are formed in cellulose, which has a role in binding metal ions. The determination of functional groups was carried out by Fourier-transform Infrared Spectroscopy. The identification of the adsorbent morphology was carried out by Scanning Electron Microscope. The adsorption of lead (II) ions by Jengkol peel was determined by calculating the difference between the lead (II) ions in the solution after and before passing through the column. The amount of lead metal remaining in solution was determined using Atomic Absorption Spectroscopy. Sodium hydroxide solution with a concentration of 1N can separate lignin from cellulose contained in lignocellulose to enhance the bio-sorbent ability of the Jengkol peel in binding metal ions. The smaller the flow rate in the column, the higher the amount of lead (II) ions adsorbed in the bio-sorbent. The acidity of the solution has the best adsorption at pH 5. The metal ions from the simulation sample can reduce the number of lead (II) metal ions adsorbed by 11%.
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Radotić K, Djikanović D, Simonović Radosavljević J, Jović-Jovičić N, Mojović Z. Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Pejić BM, Kramar AD, Obradović BM, Kuraica MM, Žekić AA, Kostić MM. Effect of plasma treatment on chemical composition, structure and sorption properties of lignocellulosic hemp fibers (Cannabis sativa L.). Carbohydr Polym 2020; 236:116000. [PMID: 32172834 DOI: 10.1016/j.carbpol.2020.116000] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/17/2020] [Accepted: 02/11/2020] [Indexed: 11/19/2022]
Abstract
Hemp fibers with different amount of hemicelluloses and lignin were subjected to atmospheric pressure dielectric barrier discharge under different conditions (40 W and 80 W power of discharge, const. time 120 s) in order to study influence of plasma treatment on their structure and sorption properties. Wettability of plasma treated samples, compared with precursors, increased due to the changes in hemp fiber surface chemistry confirmed by ATR FTIR spectroscopy and increased roughness as a consequence of intensive surface etching, observed by SEM. After plasma treatment, wettability was the highest for hemp fibers with lower content of hemicelluloses (increase up to 9 times), while wettability of raw hemp fibers and fibers with lower content of lignin increased about 5 and 2 times, respectively. This investigation shows that plasma can be successfully used for improvement of raw hemp fibers wettability, even to substitute the chemical treatment for some applications of hemp.
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Affiliation(s)
- Biljana M Pejić
- University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11000, Belgrade, Serbia.
| | - Ana D Kramar
- University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11000, Belgrade, Serbia.
| | - Bratislav M Obradović
- University of Belgrade, Faculty of Physics, Studentski trg 12, 11001, Belgrade, Serbia.
| | - Milorad M Kuraica
- University of Belgrade, Faculty of Physics, Studentski trg 12, 11001, Belgrade, Serbia.
| | - Andrijana A Žekić
- University of Belgrade, Faculty of Physics, Studentski trg 12, 11001, Belgrade, Serbia.
| | - Mirjana M Kostić
- University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11000, Belgrade, Serbia.
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Wierzba S, Rajfur M, Nabrdalik M, Kłos A. Assessment of the influence of counter ions on biosorption of copper cations in brewer's spent grain - Waste product generated during beer brewing process. Microchem J 2019. [DOI: 10.1016/j.microc.2018.10.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Doshi B, Ayati A, Tanhaei B, Repo E, Sillanpää M. Partially carboxymethylated and partially cross-linked surface of chitosan versus the adsorptive removal of dyes and divalent metal ions. Carbohydr Polym 2018; 197:586-597. [DOI: 10.1016/j.carbpol.2018.06.032] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/28/2018] [Accepted: 06/06/2018] [Indexed: 11/25/2022]
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22
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Fixed bed and batch studies on biosorption of lead using Sargassum Tenerrimum powder: Characterization, Kinetics and Thermodynamics. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.matpr.2018.06.136] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Loiacono S, Crini G, Martel B, Chanet G, Cosentino C, Raschetti M, Placet V, Torri G, Morin-Crini N. Simultaneous removal of Cd, Co, Cu, Mn, Ni, and Zn from synthetic solutions on a hemp-based felt. II. Chemical modification. J Appl Polym Sci 2017. [DOI: 10.1002/app.45138] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sonia Loiacono
- UMR 6249 Chrono-environnement; Université de Bourgogne Franche-Comté; 16 route de Gray Besançon 25000 France
| | - Grégorio Crini
- UMR 6249 Chrono-environnement; Université de Bourgogne Franche-Comté; 16 route de Gray Besançon 25000 France
| | - Bernard Martel
- UMET UMR 8207; Ingénierie des Systèmes Polymères, Université de Lille 1; Villeneuve d'Ascq 59655 France
| | - Gilles Chanet
- Eurochanvre; 7 route de Dijon Arc-les-Gray 70100 France
| | - Cesare Cosentino
- Istituto di Chimica e Biochimica G. Ronzoni; 81 via G. Colombo Milano 20133 Italy
| | - Marina Raschetti
- FEMTO-ST Institute, CNRS/UFC/ENSMM/UTBM, Department of Applied Mechanics; Université de Bourgogne Franche-Comté; Besançon 25000 France
| | - Vincent Placet
- FEMTO-ST Institute, CNRS/UFC/ENSMM/UTBM, Department of Applied Mechanics; Université de Bourgogne Franche-Comté; Besançon 25000 France
| | - Giangiacomo Torri
- Istituto di Chimica e Biochimica G. Ronzoni; 81 via G. Colombo Milano 20133 Italy
| | - Nadia Morin-Crini
- UMR 6249 Chrono-environnement; Université de Bourgogne Franche-Comté; 16 route de Gray Besançon 25000 France
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Loiacono S, Morin-Crini N, Cosentino C, Torri G, Chanet G, Winterton P, Crini G. Simultaneous removal of Cd, Co, Cu, Mn, Ni and Zn from synthetic solutions on a hemp-based felt: Experimental design. J Appl Polym Sci 2016. [DOI: 10.1002/app.44422] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sonia Loiacono
- UMR 6249 Chrono-environnement; Université de Bourgogne Franche-Comté; 16 route de Gray Besançon 25030 France
| | - Nadia Morin-Crini
- UMR 6249 Chrono-environnement; Université de Bourgogne Franche-Comté; 16 route de Gray Besançon 25030 France
| | - Cesare Cosentino
- Istituto di Chimica e Biochimica G. Ronzoni; 81 via G. Colombo Milano 20133 Italy
| | - Giangiacomo Torri
- Istituto di Chimica e Biochimica G. Ronzoni; 81 via G. Colombo Milano 20133 Italy
| | - Gilles Chanet
- Eurochanvre; 7 route de Dijon Arc-les-Gray 70100 France
| | - Peter Winterton
- Université de Toulouse Paul Sabatier; 118 Route de Narbonne, Toulouse cedex 9 31062 France
| | - Grégorio Crini
- UMR 6249 Chrono-environnement; Université de Bourgogne Franche-Comté; 16 route de Gray Besançon 25030 France
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Sadeek SA, Negm NA, Hefni HHH, Wahab MMA. Metal adsorption by agricultural biosorbents: Adsorption isotherm, kinetic and biosorbents chemical structures. Int J Biol Macromol 2015; 81:400-9. [PMID: 26282929 DOI: 10.1016/j.ijbiomac.2015.08.031] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 07/29/2015] [Accepted: 08/13/2015] [Indexed: 11/17/2022]
Abstract
Biosorption of Cu(II), Co(II) and Fe(III) ions from aqueous solutions by rice husk, palm leaf and water hyacinth was investigated as a function of initial pH, initial heavy metal ions concentration and treatment time. The adsorption process was examined by two adsorption isotherms: Langmuir and Freundlich isotherms. The experimental data of biosorption process were analyzed using pseudo-first order, pseudo-second order kinetic models. The equilibrium biosorption isotherms showed that the three studied biosorbents possess high affinity and sorption capacity for Cu(II), Co(II) and Fe(III) ions. Rice husk showed more efficiency than palm leaf and water hyacinth. Adsorption of Cu(II) and Co(II) was more efficient in alkaline medium (pH 9) than neutral medium due to the high solubility of metal ion complexes. The metal removal efficiency of each biosorbent was correlated to its chemical structure. DTA studies showed formation of metal complex between the biosorbents and the metal ions. The obtained results showed that the tested biosorbents are efficient and alternate low-cost biosorbent for removal of heavy metal ions from aqueous media.
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Affiliation(s)
| | - Nabel A Negm
- Petrochemicals Department, Egyptian Petroleum Research Institute, Cairo, Egypt.
| | - Hassan H H Hefni
- Petrochemicals Department, Egyptian Petroleum Research Institute, Cairo, Egypt
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Khosravihaftkhany S, Morad N, Abdullah AZ, Teng TT, Ismail N. Biosorption of Pb(ii) and Fe(iii) from aqueous co-solutions using chemically pretreated oil palm fronds. RSC Adv 2015. [DOI: 10.1039/c5ra15325e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The removal of Pb(ii) and Fe(iii) from aqueous solutions using specially pretreated oil palm fronds (OPF) as biosorbents was investigated.
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Affiliation(s)
| | | | | | - Tjoon Tow Teng
- School of Industrial Technology
- Universiti Sains Malaysia
- Malaysia
| | - Norli Ismail
- School of Industrial Technology
- Universiti Sains Malaysia
- Malaysia
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28
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Mendoza-Castillo DI, Villalobos-Ortega N, Bonilla-Petriciolet A, Tapia-Picazo JC. Neural Network Modeling of Heavy Metal Sorption on Lignocellulosic Biomasses: Effect of Metallic Ion Properties and Sorbent Characteristics. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503619j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - J. C. Tapia-Picazo
- Instituto Tecnologico de Aguascalientes, Aguascalientes, Mexico, C.P. 20256
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29
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Wang J, Liu S, Chen C, Zou Y, Hu H, Cai Q, Yao S. Natural cotton fibers as adsorbent for solid-phase extraction of polycyclic aromatic hydrocarbons in water samples. Analyst 2014; 139:3593-9. [DOI: 10.1039/c4an00195h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A natural material, cotton fiber, has been applied as a solid-phase extraction (SPE) adsorbent for sample preparation for the analysis of polycyclic aromatic hydrocarbons (PAH) in water samples using high-performance liquid chromatography.
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Affiliation(s)
- Jianping Wang
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Shengquan Liu
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Chunyan Chen
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Ying Zou
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Huiping Hu
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Qingyun Cai
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082, China
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30
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Abstract
Biosorption is a unique ability of living or dead biomass to interact with substances such as metals where reduction of sorbate concentration can be achieved. Thus, it has been widely proposed as a promising alternative for metal remediation and recovery owing to its low cost and sustainable “green” nature. Despite considerable biosorption‐related research performed in the past few decades, no significant commercial success has been achieved so far. This chapter starts with discussion of the basic science of biosorption and the potential of some selected biomasses such as yeast, algae, agro‐based waste and vermicompost to be used as biosorbent material. Following this, some important issues regarding the practical application of biosorption are highlighted, including the advantages and disadvantages of using dead or living biomass, the availability of biosorption reactors, immobilization techniques, metal recovery and post‐treatment of spent biosorbent. Lastly, current challenges that limit the commercial success of biosorption as well as the direction of future research are discussed.
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Affiliation(s)
- Pei Pei Gan
- Department of Chemistry National University of Singapore 3 Science Drive 3, Singapore Republic of Singapore 117543
| | - Sam Fong Yau Li
- Department of Chemistry National University of Singapore 3 Science Drive 3, Singapore Republic of Singapore 117543
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31
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Gharehchahi E, Mahvi AH, Shahri SMT, Davani R. Possibility of application of kenaf fibers (Hibiscus cannabinusL.) in water hardness reduction. DESALINATION AND WATER TREATMENT 2013. [DOI: 10.1080/19443994.2013.819137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Zou X, Fallah JE, Goupil JM, Zhu G, Valtchev V, Mintova S. Green removal of aromatic organic pollutants from aqueous solutions with a zeolite–hemp composite. RSC Adv 2012. [DOI: 10.1039/c2ra01176j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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34
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Acylation de la cellulose par le chlorhydrate de chlorure de 3-pyridinoyl : application dans l’adsorption du plomb Pb2+. CR CHIM 2011. [DOI: 10.1016/j.crci.2011.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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35
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Park JH, Lamb D, Paneerselvam P, Choppala G, Bolan N, Chung JW. Role of organic amendments on enhanced bioremediation of heavy metal(loid) contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2011; 185:549-74. [PMID: 20974519 DOI: 10.1016/j.jhazmat.2010.09.082] [Citation(s) in RCA: 352] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 09/22/2010] [Accepted: 09/23/2010] [Indexed: 05/21/2023]
Abstract
As land application becomes one of the important waste utilization and disposal practices, soil is increasingly being seen as a major source of metal(loid)s reaching food chain, mainly through plant uptake and animal transfer. With greater public awareness of the implications of contaminated soils on human and animal health there has been increasing interest in developing technologies to remediate contaminated sites. Bioremediation is a natural process which relies on soil microorganisms and higher plants to alter metal(loid) bioavailability and can be enhanced by addition of organic amendments to soils. Large quantities of organic amendments, such as manure compost, biosolid and municipal solid wastes are used as a source of nutrients and also as a conditioner to improve the physical properties and fertility of soils. These organic amendments that are low in metal(loid)s can be used as a sink for reducing the bioavailability of metal(loid)s in contaminated soils and sediments through their effect on the adsorption, complexation, reduction and volatilization of metal(loid)s. This review examines the mechanisms for the enhanced bioremediation of metal(loid)s by organic amendments and discusses the practical implications in relation to sequestration and bioavailability of metal(loid)s in soils.
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Affiliation(s)
- Jin Hee Park
- Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, SA 5095, Australia
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Hu X, Zhao M, Huang H. Modification of pineapple peel fiber as metal ion adsorbent through reaction with succinic anhydride in pyridine and dimethyl sulfoxide solvents. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2010; 82:733-741. [PMID: 20853752 DOI: 10.2175/106143009x12529484816150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Reactions between saponified pineapple peel fiber (SPPF) and succinic anhydride were performed in refluxed pyridine and dimethyl sulfoxide to obtain modified pineapple peel fiber in pyridine (MPPF-PY) and modified pineapple peel fiber in dimethyl sulfoxide at room temperature (MPPF-DMRT) and at 70 degrees C (MPPF-DM70) as novel metal ionic adsorbents. The modified pineapple peel fibers were characterized by Fourier transform infrared (FTIR) and X-ray diffraction (XRD). The MPPF-PY, MPPF-DMRT, and MPPF-DM70 showed higher Cu2+, Cd2+, and Pb2+ adsorption capacity than raw pineapple peel fiber (RPPF) and SPPF. Dimethyl sulfoxide favored introduction of a carboxylic function group into pineapple peel fiber compared with pyridine. The elevated reaction temperature of dimethyl sulfoxide could increase the adsorption capacity of the modified pineapple fiber. Optimum pH values for Cu2+, Cd2+, and Pb2+ removal by MPPF-DM70 were pH 5.5, 7.5, and 5.5, respectively. The Cu2+, Cd2+, and Pb2+ adsorptions by MPPF-DM70 followed the pseudo second-order kinetics model and Langmuir model.
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Affiliation(s)
- Xiuyi Hu
- Department of Food Science and Technology, South China University of Technology, Guangzhou, PR China
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Gyliene O, Binkiene R, Butkiene R. Sorption of Cu(II) complexes with ligands tartrate, glycine and quadrol by chitosan. JOURNAL OF HAZARDOUS MATERIALS 2009; 171:133-139. [PMID: 19540041 DOI: 10.1016/j.jhazmat.2009.05.119] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Revised: 04/29/2009] [Accepted: 05/25/2009] [Indexed: 05/27/2023]
Abstract
The sorption by chitosan in Cu(II) solutions containing tartrate, glycine (amino acetic acid) and quadrol (N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine) as ligands has been investigated. The degree of sorbate removal strongly depends on pH. In solutions containing tartrate almost complete sorption of both Cu(II) and tartrate proceeds in mildly acidic and neutral solutions. The sorption of Cu(II) is also complete in alkaline solutions containing glycine; meanwhile a substantial sorption of glycine proceeds at pH approximately 6. The Cu(II) sorption in solutions containing quadrol is insignificant. Any sorption of quadrol does not proceed in the whole range of pH investigated. The investigations under equilibrium conditions showed that the Cu(II) sorption from tartrate containing solutions obeys Freundlich equation and in solutions containing glycine and quadrol it fits Langmuir equation. Supposedly, Cu(II) sorption onto chitosan proceeds with formation of amino complexes onto the surface of chitosan; the sorption of tartrate proceeds as electrostatic as well as with formation of amide bonds. Applying of electrolysis enables a complete removal of sorbed Cu(II) and ligands without changes in physical and chemical properties of chitosan. This is confirmed by sorption ability of regenerated chitosan, measurements of its molecular weight, the deacetylation degree and FT-IR spectra.
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Affiliation(s)
- Ona Gyliene
- Institute of Chemistry, Vilnius LT 01108, Lithuania.
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