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Shukla S, Khan R, Srivastava MM, Zahmatkesh S. Valorization of Waste Watermelon Rinds as a Bio-adsorbent for Efficient Removal of Methylene Blue Dye from Aqueous Solutions. Appl Biochem Biotechnol 2024; 196:2534-2548. [PMID: 37043124 DOI: 10.1007/s12010-023-04448-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 04/13/2023]
Abstract
Nature-based solutions (NBSs) for remediation of various emerging contaminants have gained impetus during the last few decades. In the current study, watermelon (citrullus lanatus), a highly consumed seasonal fruit, was used as a feedstock waste biomass for biochar synthesis through valorization of watermelon rinds. The watermelon biochar (WM-BC) was synthesized through slow pyrolysis at 550°C under anoxic conditions. Langmuir model with R2>99, was found to best fit the adsorption isotherm, and the adsorption kinetics was best described by the pseudo-second-order model. Various characterization tools including FTIR, SEM, BET, XRD, and TEM were used to evaluate the surface morphology of the biochar. The removal efficiency increased from 35% (dosage = 0.4 g), to 81% at WM-BC dosage of 2 g. A maximum adsorption capacity of 115.61 mg/g was found. The results from kinetic and isotherm model model suggested that the adsorption was favorable and multilayer adsorption can be considered. The adsorption mechanism was found to be governed by the co-existing factors such as hydrogen bonding, electrostatic interactions, and aromatic interactions. Results suggest that WM-BC has high potential to be employed as an adsorbent for efficient remediation of methylene blue dyes from aqueous solutions.
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Affiliation(s)
- Saurabh Shukla
- Faculty of Civil Engineering, Institute of Technology, Shri Ramswaroop Memorial University, Barabanki, India
| | - Ramsha Khan
- Faculty of Civil Engineering, Institute of Technology, Shri Ramswaroop Memorial University, Barabanki, India.
| | - Mahendra Mohan Srivastava
- Faculty of Civil Engineering, Institute of Technology, Shri Ramswaroop Memorial University, Barabanki, India
| | - Sasan Zahmatkesh
- Department of Chemical Engineering, University of Science and Technology of Mazandaran, P.O. Box 48518-78195, Behshahr, Iran
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Yang Y, Zhong Z, Jin B, Zhang B, Du H, Li Q, Zheng X, Qi R, Ren P, Li Z. Effective stabilization of heavy metals in solid waste and sludge pyrolysis using intercalated-exfoliated modified vermiculite: Experiment and simulation study. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 178:126-134. [PMID: 38401426 DOI: 10.1016/j.wasman.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/25/2024] [Accepted: 02/14/2024] [Indexed: 02/26/2024]
Abstract
Pyrolysis is effective in reducing the volume of solid waste and sludge, and produces less pollutants than incineration and landfill, but the process still suffers from heavy metal pollution. Four types of intercalated-exfoliated modified vermiculite (UIV, DIV, TIV and 3IV) were prepared using urea, dimethylsulfoxide, tributyl phosphate and 3-aminopropyltriethoxysilane as intercalators for the control of Cd, Cr, Cu, Pb and Zn in municipal sewage sludge (MSL), paper mill sludge (PML), municipal domestic waste (MWA) and aged refuse (AFE). The larger the interlayer spacing of the vermiculite, the more favorable the retention of heavy metals. 3IV was the most effective additive, with an average retention of more than 75 % of all heavy metals at 450 ℃ for the four raw materials. Cr, Cu, Pb and Zn were all at low potential ecological risk (Pr), while Cd was moderate or considerable Pr, and the addition of 3IV reduced the Pr. Distribution of intercalators between vermiculite interlayers was haphazard, and interlayer spacing results were close to those of the experiment (except for tributyl phosphate). The reactive electrons mainly flowed from the Highest Occupied Molecular Orbital (HOMO) of vermiculite flakes to the Lower Unoccupied Molecular Orbital (LUMO) of heavy metal chlorides. In contrast, the reactive electrons mostly flowed from the HOMO of heavy metal oxides to the LUMO of vermiculite flakes. Heavy metal oxides were more readily adsorbed on vermiculite flakes than heavy metal chlorides, and the adsorption capacity of Cr and Zn was stronger than that of Cd, Pb and Cu.
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Affiliation(s)
- Yuxuan Yang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhaoping Zhong
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
| | - Baosheng Jin
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Bo Zhang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Haoran Du
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Qian Li
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Xiang Zheng
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Renzhi Qi
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Pengkun Ren
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhaoying Li
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
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Eze E, Omer AM, Hassanin AH, Eltaweil AS, El-Khouly ME. Cellulose acetate nanofiber modified with polydopamine polymerized MOFs for efficient removal of noxious organic dyes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:29992-30008. [PMID: 38598154 DOI: 10.1007/s11356-024-33050-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/19/2024] [Indexed: 04/11/2024]
Abstract
The need to effectively remove toxic organic dyes from aquatic systems has become an increasingly critical issue in the recent years. In pursuit of this objective, polydopamine (PDA)-binary ZIF-8/UiO-66 (MOFs) was synthesized and incorporated into cellulose acetate (CA), producing ZIF-8/UiO-66/PDA@CA composite nanofibers under meticulously optimized conditions. The potential of fabricated nanofibers to remove cationic methylene blue (MB) dye was investigated. Various analysis tools including FTIR, XRD, SEM, zeta potential, BET, tensile strength testing, and XPS were employed. Results revealed a substantial leap in tensile strength, with ZIF-8/UiO-66/PDA@CA registering an impressive 2.8 MPa, as a marked improvement over the neat CA nanofibers (1.1 MPa). ZIF-8/UiO-66/PDA@CA nanofibers exhibit an outstanding adsorption capacity of 82 mg/g, notably outperforming the 22.4 mg/g capacity of neat CA nanofibers. In binary dye systems, these nanofibers exhibit a striking maximum adsorption capacity of 108 mg/g, establishing their eminence in addressing the complexities of wastewater treatment. Furthermore, the adsorption data fitted to the Langmuir isotherm, and the pseudo-second-order kinetic model. The fabricated nanofiber demonstrates good reproducibility and durability, consistently upholding its performance over five cycles. This suite of remarkable attributes collectively underscores its potential as a robust, durable, and highly promising solution for the effective and efficient removal of pernicious MB dye, in the context of both water quality improvement and environmental preservation.
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Affiliation(s)
- Esther Eze
- Nanoscience Program, Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, Egypt
| | - Ahmed M Omer
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, Egypt
| | - Ahmed H Hassanin
- Department of Textile, Faculty of Engineering, Alexandria University, Alexandria, Egypt
- Wilson College Textile, North Carolina State University, Raleigh, NC, USA
| | - Abdelazeem S Eltaweil
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, 21934, Egypt
- Department of Engineering, Faculty of Engineering and Technology, University of Technology and Applied Sciences, Muscat, Oman
| | - Mohamed E El-Khouly
- Nanoscience Program, Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, Egypt.
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Tomin O, Vahala R, Yazdani MR. Synthesis and efficiency comparison of reed straw-based biochar as a mesoporous adsorbent for ionic dyes removal. Heliyon 2024; 10:e24722. [PMID: 38298730 PMCID: PMC10828687 DOI: 10.1016/j.heliyon.2024.e24722] [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: 08/25/2023] [Revised: 12/07/2023] [Accepted: 01/12/2024] [Indexed: 02/02/2024] Open
Abstract
The reed straw is assessed as a potential source of widely available renewable biomass for biochar production and compared with two other waste-based biomasses, namely fruit stones blend, and brewery spent grains. The biochars were activated via steam and CO2. While steam activation yielded 12 % carbon from reed biomass, CO2 activation resulted in biomass degradation. The characterization of reed biochar showed a mesoporous structure and a high surface area of 514 m2/g. The adsorption tests displayed a decent adsorption capacity of biochar, with values of 92.6 mg/g for methylene violet dye and 35.7 mg/g for acid green dye. Only 1 g/L dosage of reed biochar was able to remove 99 % of the 50 mg/L methylene violet solution in 15 min and 60 % of the 50 mg/L acid green solution in 10 min. The obtained results demonstrate reed biomass as a suitable source for biochar production as well as reed-based biochar as a promising dye adsorbent.
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Affiliation(s)
- Oleksii Tomin
- Department of Built Environment, School of Engineering, Aalto University, P.O. Box 15200, FI-00076, Aalto, Finland
| | - Riku Vahala
- Department of Built Environment, School of Engineering, Aalto University, P.O. Box 15200, FI-00076, Aalto, Finland
| | - Maryam R. Yazdani
- Department of Mechanical Engineering, School of Engineering, Aalto University, P.O. Box 14400, FI-00076, Aalto, Finland
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Gonçalves JO, Crispim MM, Rios EC, Silva LF, de Farias BS, Sant'Anna Cadaval Junior TR, de Almeida Pinto LA, Nawaz A, Manoharadas S, Dotto GL. New and effective cassava bagasse-modified biochar to adsorb Food Red 17 and Acid Blue 9 dyes in a binary mixture. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:5209-5220. [PMID: 38110688 DOI: 10.1007/s11356-023-31489-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/07/2023] [Indexed: 12/20/2023]
Abstract
A promissory technic for reducing environmental contaminants is the production of biochar from waste reuse and its application for water treatment. This study developed biochar (CWb) and NH4Cl-modified biochar (MCWb) using cassava residues as precursors. CWb and MCWb were characterized and evaluated in removing dyes (Acid Blue 9 and Food Red 17) in a binary system. The adsorbent demonstrated high adsorption capacity at all pH levels studied, showing its versatility regarding this process parameter. The equilibrium of all adsorption experiments was reached in 30 min. The adsorption process conformed to pseudo-first-order kinetics and extended Langmuir isotherm model. The thermodynamic adsorption experiments demonstrated that the adsorption process is physisorption, exhibiting exothermic and spontaneous characteristics. MCWb exhibited highly efficient and selective adsorption behavior towards the anionic dyes, indicating maximum adsorption capacity of 131 and 150 mg g-1 for Food Red 17 and Acid Blue 9, respectively. Besides, MCWb could be reused nine times, maintaining its original adsorption capacity. This study demonstrated an excellent adsorption capability of biochars in removing dyes. In addition, it indicated the recycling of wastes as a precursor of bio composts, a strategy for utilization in water treatment with binary systems. It showed the feasibility of the reuse capacity that indicated that the adsorbent may have many potential applications.
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Affiliation(s)
- Janaína Oliveira Gonçalves
- Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, 080002, Barranquilla, Atlántico, Colombia
| | - Marssele Martins Crispim
- Industrial Technology Laboratory, School of Chemistry and Food Federal University of Rio Grande, Rio Grande, Brazil
| | - Estefani Cardillo Rios
- Industrial Technology Laboratory, School of Chemistry and Food Federal University of Rio Grande, Rio Grande, Brazil
| | - Luis Felipe Silva
- Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, 080002, Barranquilla, Atlántico, Colombia
| | - Bruna Silva de Farias
- Industrial Technology Laboratory, School of Chemistry and Food Federal University of Rio Grande, Rio Grande, Brazil
| | | | | | - Asad Nawaz
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Salim Manoharadas
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Guilherme Luiz Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil.
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Hou Y, Jia A, Qin X, Yang X, Xie J, Li X, Zhao Y. New insights on the preparation of amine covalent organic polymer and its adsorption properties. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122659. [PMID: 37839682 DOI: 10.1016/j.envpol.2023.122659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/08/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
Dye pollution is becoming increasingly severe. This study used the Schiff base reaction to synthesize a polyaromatic ring covalent organic polymer material with amide bonds and high electronegativity named SLEL-9 to adsorb Methylene Blue (MB) and Rhodamine B (RhB). SLEL-9 was characterized by Fourier transform infra-red spectra, X-ray photoelectron spectra, Brunauer-Emmett-Teller (BET), zeta potential analysis, and other techniques. It was found that SLEL-9 material contains C-C, CN, C-N, and CO. SLEL-9 had a zeta potential of about -45 mV under neutral conditions, which proved that the material had been synthesized successfully. The BET and Langmuir surface areas of SLEL-9 were 35.187 m2 g-1 and 56.419 m2 g-1, respectively. The adsorptions of SLEL-9 on low concentration (10 mg L-1) Methylene Blue and Rhodamine B reached equilibrium within 48 h. The results showed that SLEL-9's adsorption of dye molecules are more consistent with pseudo-second-order kinetic and Langmuir isotherm model. The adsorption experiments showed that the adsorption process is a spontaneous endothermic reaction, mainly chemisorption. The maximum adsorption capacity of SLEL-9 for MB and RhB were 132.45 mg g-1 and 101.94 mg g-1. In addition, this study investigated to determine the optimal reaction parameters. The primary mechanisms of SLEL-9 adsorption of two dyes are n→π* interaction, π-π EDA interaction and electrostatic attraction. Selective adsorb ability experiment results showed that SLEL-9 could selectively adsorb MB and RhB to a certain extent. Finally, it was found that SLEL-9 can maintain over 70% adsorption capacity after five reuses and can maintain stability after soaking in different pH water and organic solvents for 120 h. SLEL-9 proved to be a promising organic covalent polymer adsorption material for the removal of Methylene Blue and Rhodamine B in water.
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Affiliation(s)
- Yutong Hou
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China
| | - Aiyuan Jia
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China
| | - Xueming Qin
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China
| | - Xinru Yang
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China
| | - Jiayin Xie
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China
| | - Xiaoyu Li
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China
| | - Yongsheng Zhao
- Key Lab of Groundwater Resources and Environment (Ministry of Education), College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun, 130021, PR China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, College of New Energy and Environment, Jilin University, Changchun, 130021, PR China.
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7
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Bai R, Feng Y, Wu L, Li N, Liu Q, Teng Y, He R, Zhi K, Zhou H, Qi X. Adsorption mechanism of methylene blue by magnesium salt-modified lignite-based adsorbents. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118514. [PMID: 37487308 DOI: 10.1016/j.jenvman.2023.118514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 07/26/2023]
Abstract
The rich pore structure and carbon structure of lignite make it a suitable adsorbent for effectively removing methylene blue (MB) from wastewater. This article reports the preparation of lignite-based adsorbents modified by magnesium salts, and the key factors and adsorption mechanism are analyzed to effectively improve the adsorption performance for MB. The results showed that the lignite was modified by magnesium salts, and the Mg2+ in the magnesium salts had a good binding effect on the oxygen-containing functional groups in the lignite. This improved the adsorption performance of the lignite-based adsorbents for MB. The Mg(NO3)2-modified lignite-based adsorbent showed the best adsorption performance and removal rate of MB (99.33%) when prepared with 8 wt % Mg(NO3)2. Characterization analysis showed that a "-COOMg" structure was formed between Mg2+ in the magnesium salts and the carboxylic acid functional group in the lignite, which was postulated to be the absorption site that promoted the adsorption performance for MB. It is speculated that the MB adsorption mechanism of this lignite-based adsorbent is ion exchange.
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Affiliation(s)
- Ruzhan Bai
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Yan Feng
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Lei Wu
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Na Li
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Quansheng Liu
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Yingyue Teng
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Runxia He
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Keduan Zhi
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Huacong Zhou
- College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Hohhot, 010051, China.
| | - Xueyan Qi
- School of Materials Science and Engineering, Hebei University of Engineering, Handan, 056038, China.
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Tschoeke ICP, Fraga TJM, da Silva MP, Costa e Souza TP, Chinelate GCB. Biogas production from malt bagasse from craft beer industry: kinetic modeling and process simulation. JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT 2023; 25:1-13. [PMID: 37360949 PMCID: PMC10250849 DOI: 10.1007/s10163-023-01715-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 05/14/2023] [Indexed: 06/28/2023]
Abstract
In this work, biogas was synthesized from malt enriched-craft beer bagasse with the objective to generate clean energy. Thus, a kinetic model based on thermodynamic parameters was proposed to represent the process with coefficient determination (R2) of 0.82. A bench-top biodigester of 2.0 × 10-3 m3 was built in glass, and equipped with sensors to measure pressure, temperature, and methane concentration. The inoculum selected for the anaerobic digestion was the granular sludge, and malt bagasse was used as substrate. Data were fitted to a pseudo-first-order model for the formation of methane gas using the Arrehnius equation as basis. For the simulations of biogas production, the Aspen Plus™ software was used. Results from 23 factorial design experiments evidenced that equipment was efficient, and the craft beer bagasse showed great biogas production, with nearly 95% of methane yield. The temperature was the variable that showed most influence in the process. Moreover, the system has a potential for the generation of 10.1 kWh of clean energy. Kinetic constant rate for methane production was 5.42 × 10-7 s-1 and activation energy 8.25 kJ mol-1. A statistical analysis using a math software was performed and evidenced that the temperature played a major role in the biomethane conversion. Supplementary Information The online version contains supplementary material available at 10.1007/s10163-023-01715-7.
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Affiliation(s)
- Isabelle Cristine Prohmann Tschoeke
- Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil
| | - Tiago José Marques Fraga
- Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil
- Department of Chemical Engineering, Federal University of Pernambuco (UFPE), 1235 Prof. Moraes Rego Av, Cidade Universitária, Recife, PE 50670-901 Brazil
| | - Maryne Patrícia da Silva
- Department of Chemical Engineering, Federal University of Pernambuco (UFPE), 1235 Prof. Moraes Rego Av, Cidade Universitária, Recife, PE 50670-901 Brazil
| | - Thibério Pinho Costa e Souza
- Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil
| | - Gerla Castello Branco Chinelate
- Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil
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9
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Streit AFM, Grassi P, Drumm FC, Silva LFO, Oliveira MLS, Collazzo GC, Godinho M, Perondi D, Dotto GL. Preparation of carbonaceous materials from flotation-sludge of the poultry industry and its application in the methylene blue adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27756-x. [PMID: 37264169 DOI: 10.1007/s11356-023-27756-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/15/2023] [Indexed: 06/03/2023]
Abstract
In this work, different carbonaceous materials based on floated sludge from a poultry industry wastewater treatment plant (PI-WTP) were synthesized. These materials were characterized and investigated in methylene blue dye (MB) adsorption. The influences of the initial pH solution, adsorbent dosage, kinetics, equilibrium, and thermodynamics were evaluated in the adsorption experiments. A simulation of a real textile effluent was also carried out to evaluate the adsorbent. The results of the adsorbents' characterization demonstrated that adding ZnCl2 + lime, followed by pyrolysis and acid leaching, significantly improved the material's properties, leading to abundant porosity and high surface area. The adsorption experiments indicated that the natural pH of the solution (8.0) and the AC-II dosage of 0.75 g L-1 are optimal for MB removal. Elovich and Sips' models (with a maximum adsorption capacity of 221.02 mg g-1 at 328 K) best fitted the experimental kinetic and equilibrium data, respectively. The adsorption process is spontaneous and endothermic according to thermodynamic parameters. The discoloration efficiency of the simulated effluent was 67.8%. In conclusion, the floated sludge, a residue produced on a large scale that needs to be disposed of correctly, can be converted into a value-added material (carbonaceous adsorbent) and applied to treat colored effluents.
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Affiliation(s)
- Angélica F M Streit
- Research Group On Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | - Patrícia Grassi
- Research Group On Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | - Fernanda C Drumm
- Research Group On Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | - Luis F O Silva
- Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
| | - Marcos L S Oliveira
- Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
| | - Gabriela C Collazzo
- Research Group On Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | - Marcelo Godinho
- Engineering of Processes and Technologies Post-Graduate Program, University of Caxias Do Sul-UCS, Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - Daniele Perondi
- Engineering of Processes and Technologies Post-Graduate Program, University of Caxias Do Sul-UCS, Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - Guilherme L Dotto
- Research Group On Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil.
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10
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Pei T, Shi F, Liu C, Lu Y, Lin X, Hou D, Yang S, Li J, Zheng Z, Zheng Y. Bamboo-derived nitrogen-doping magnetic porous hydrochar coactivated by K 2FeO 4 and CaCO 3 for phenol removal: Governing factors and mechanisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 331:121871. [PMID: 37225081 DOI: 10.1016/j.envpol.2023.121871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/09/2023] [Accepted: 05/21/2023] [Indexed: 05/26/2023]
Abstract
In this study, a novel nitrogen-doped magnetic Fe-Ca codoped biochar for phenol removal was successfully fabricated via a hydrothermal and coactivation pyrolysis method. A series of adsorption process parameters (K2FeO4 to CaCO3 ratio, initial phenol concentration, pH value, adsorption time, adsorbent dosage and ion strength) and adsorption models (kinetic models, isotherms and thermodynamic models) were determined using batch experiments and various analysis techniques (XRD, BET, SEM-EDX, Raman spectroscopy, VSM, FTIR and XPS) to investigate the adsorption mechanism and metal-nitrogen-carbon interaction. The biochar with a ratio of Biochar: K2FeO4: CaCO3 = 3:1:1 exhibited superior properties for adsorption of phenol and had a maximum adsorption capacity of 211.73 mg/g at 298 K, C0 = 200 mg/L, pH = 6.0 and t = 480 min. These excellent adsorption properties were due to superior physicomechanical properties (a large specific surface area (610.53 m2/g) and pore volume (0.3950 cm3/g), a well-developed pore structure (hierarchical), a high graphitization degree (ID/IG = 2.02), the presence of O/N-rich functional groups and Fe-Ox,Ca-Ox, N-doping, as well as synergistic activation by K2FeO4 and CaCO3). The Freundlich and pseudo-second-order models effectively fit the adsorption data, indicating multilayer physicochemical adsorption. Pore filling and π-π interactions were the predominant mechanisms for phenol removal, and H-bonding interactions, Lewis-acid-base interactions, and metal complexation played an important role in enhancing phenol removal. A simple, feasible approach with application potential to organic contaminant/pollutant removal was developed in this study.
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Affiliation(s)
- Tao Pei
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Feng Shi
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Can Liu
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Yi Lu
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Xu Lin
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Defa Hou
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Shunxiong Yang
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Jirong Li
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China
| | - Zhifeng Zheng
- Xiamen Key Laboratory for High-valued Conversion Technology of Agricultural Biomass (Xiamen University), Fujian Provincial Engineering and Research Center of Clean and High-valued Technologies for Biomass, College of Energy, Xiamen University, Xiamen, 361102, PR China
| | - Yunwu Zheng
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, College of Materials & Chemical Engineering, Southwest Forestry University, Kunming, 650224, PR China.
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11
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Yao J, Deng Y, Li DS, Li H, Yang HY. Role of magnetic substances in adsorption removal of ciprofloxacin by gamma ferric oxide and ferrites co-modified carbon nanotubes. J Colloid Interface Sci 2023; 638:872-881. [PMID: 36796133 DOI: 10.1016/j.jcis.2023.02.036] [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: 11/21/2022] [Revised: 01/17/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023]
Abstract
Antibiotics have been considered an evolving environmental challenge in the last few decades due to their mutagenic and persistent effects. Herein, we synthesized γ-Fe2O3 and ferrites nanocomposites co-modified carbon nanotubes (γ-Fe2O3/MFe2O4/CNTs, M: Co, Cu, and Mn) with high crystallinity, thermostability, and magnetization for the adsorption removal of ciprofloxacin. The experimental equilibrium adsorption capacities of ciprofloxacin on γ-Fe2O3/MFe2O4/CNTs were 44.54 (Co), 41.13 (Cu), and 41.53 (Mn) mg/g, respectively. The adsorption behaviors followed the Langmuir isotherm and pseudo-first-order models. Density functional theory calculations revealed that the active sites preferentially appeared on the oxygen of the carboxyl group in ciprofloxacin, and the calculated adsorption energies of ciprofloxacin on CNTs, γ-Fe2O3, CoFe2O4, CuFe2O4, and MnFe2O4 were -4.82, -1.08, -2.49, -0.60, and 5.69 eV, respectively. The addition of γ-Fe2O3 changed the adsorption mechanism of ciprofloxacin on MFe2O4/CNTs and γ-Fe2O3/MFe2O4/CNTs. CNTs and CoFe2O4 controlled the cobalt system of γ-Fe2O3/CoFe2O4/CNTs, while CNTs and γ-Fe2O3 ruled the adsorption interaction and capacity of copper and manganese systems. This work reveals the role of magnetic substances, which is beneficial to the preparation and environmental application of similar adsorbents.
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Affiliation(s)
- Jingjing Yao
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, PR China; Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372 Singapore, Singapore
| | - Yi Deng
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, PR China
| | - Haipu Li
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, PR China.
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372 Singapore, Singapore.
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12
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Zhengfeng S, Ming C, Geming W, Quanrong D, Shenggao W, Yuan G. Synthesis, characterization and removal performance of Cr (Ⅵ) by orange peel-based activated porous biochar from water. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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13
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Grassi P, Netto MS, Jahn SL, Georgin J, Franco DSP, Sillanpää M, Meili L, Silva LFO. Conversion of foliar residues of Sansevieria trifasciata into adsorbents: dye adsorption in continuous and discontinuous systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:9688-9698. [PMID: 36057705 DOI: 10.1007/s11356-022-22857-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
The study analyzed the potential of leaf powder prepared from the residual leaves of the species Sansevieria trifasciata, as a potential adsorbent for methylene blue (MB) removal. The equilibrium was reached fast for almost all concentrations after 60 min, obtaining the maximum capacity of 139.98 mg g-1 for 200 mg L-1. The increase in temperature disfavored the dye adsorption, with the maximum adsorption capacity of 225.8 mg g-1, observed for 298 K. The thermodynamic parameters confirmed that the adsorption process is spontaneous and exothermic. A direct sloping curve was established for the fixed bed, with breakthrough time (tb), column stoichiometric capacities (qeq), and the mass transfer zone lengths (Zm) were 1430, 1130, and 525 min; 60.48, 187.01, and 322.65 mg g-1; and 8.81, 11.28, and 10.71 cm, for 100, 200, and 500 mg L-1, respectively. Furthermore, in a mixture of several dyes, the adsorbent obtained the removal of 51% of the color.
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Affiliation(s)
- Patrícia Grassi
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Matias Schadeck Netto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Sérgio Luiz Jahn
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Jordana Georgin
- Civil and Environmental Department, Federal University of Santa Maria, UFSM, Santa Maria, Brazil
| | - Dison S P Franco
- Department of Civil and Environmental, Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa
- Zhejiang Rongsheng Environmental Protection Paper Co. LTD, NO.588 East Zhennan Road, Pinghu Economic Development Zone, Zhejiang, 314213, China
- Department of Civil Engineering, University Centre for Research & Development, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Lucas Meili
- Laboratory of Processes (LAPRO), Center of Technology, Federal University of Alagoas, Maceio, Alagoas, 57072-970, Brazil.
| | - Luis F O Silva
- Department of Civil and Environmental, Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
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Nunes IDS, Schnorr C, Perondi D, Godinho M, Diel JC, Machado LMM, Dalla Nora FB, Silva LFO, Dotto GL. Valorization of Different Fractions from Butiá Pomace by Pyrolysis: H 2 Generation and Use of the Biochars for CO 2 Capture. Molecules 2022; 27:7515. [PMID: 36364342 PMCID: PMC9658530 DOI: 10.3390/molecules27217515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 10/29/2022] [Indexed: 11/12/2023] Open
Abstract
This work valorizes butiá pomace (Butia capitata) using pyrolysis to prepare CO2 adsorbents. Different fractions of the pomace, like fibers, endocarps, almonds, and deoiled almonds, were characterized and later pyrolyzed at 700 °C. Gas, bio-oil, and biochar fractions were collected and characterized. The results revealed that biochar, bio-oil, and gas yields depended on the type of pomace fraction (fibers, endocarps, almonds, and deoiled almonds). The higher biochar yield was obtained by endocarps (31.9%wt.). Furthermore, the gas fraction generated at 700 °C presented an H2 content higher than 80%vol regardless of the butiá fraction used as raw material. The biochars presented specific surface areas reaching 220.4 m2 g-1. Additionally, the endocarp-derived biochar presented a CO2 adsorption capacity of 66.43 mg g-1 at 25 °C and 1 bar, showing that this material could be an effective adsorbent to capture this greenhouse gas. Moreover, this capacity was maintained for 5 cycles. Biochars produced from butiá precursors without activation resulted in a higher surface area and better performance than some activated carbons reported in the literature. The results highlighted that pyrolysis could provide a green solution for butiá agro-industrial wastes, generating H2 and an adsorbent for CO2.
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Affiliation(s)
- Isaac dos S. Nunes
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Roraima Avenue, 1000-7, Santa Maria 97105–900, Brazil
| | - Carlos Schnorr
- Department of Natural and Exact Sciences, Universidad de la Costa, CUC, Calle 58 # 55–66, Barranquilla 080002, Colombia
| | - Daniele Perondi
- Postgraduate Program in Engineering Processes and Technology, University of Caxias do Sul—UCS, Caxias do Sul 95070-560, Brazil
| | - Marcelo Godinho
- Postgraduate Program in Engineering Processes and Technology, University of Caxias do Sul—UCS, Caxias do Sul 95070-560, Brazil
| | - Julia C. Diel
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Roraima Avenue, 1000-7, Santa Maria 97105–900, Brazil
| | - Lauren M. M. Machado
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Roraima Avenue, 1000-7, Santa Maria 97105–900, Brazil
| | - Fabíola B. Dalla Nora
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Roraima Avenue, 1000-7, Santa Maria 97105–900, Brazil
| | - Luis F. O. Silva
- Department of Natural and Exact Sciences, Universidad de la Costa, CUC, Calle 58 # 55–66, Barranquilla 080002, Colombia
| | - Guilherme L. Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Roraima Avenue, 1000-7, Santa Maria 97105–900, Brazil
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15
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Wang X, Zheng Y, Zong L, Zhang C, Ren X, Ding Y, Zhang C, Zhou Y. Porous biochar composite hydrogel for effective removal of low-concentration methylene blue from wastewater. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03295-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Leichtweis J, Welter N, Vieira Y, Silvestri S, Carissimi E. Use of the CuFe 2O 4/biochar composite to remove methylene blue, methyl orange and tartrazine dyes from wastewater using photo-Fenton process. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:907. [PMID: 36253651 DOI: 10.1007/s10661-022-10633-4] [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: 12/22/2021] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
In this study, CuFe2O4 ferrite was supported on biochar produced from malt biomass residues as a photocatalyst for degradation of methylene blue (MB), methyl orange (MO), and tartrazine (TZ) dyes. XRD, FT-IR, and FE-SEM were used to characterize the crystallinity and morphology of the samples. The characterization showed that the ferrite was uniformly supported on the surface of the biochar, confirming the formation of the composite. Degradation tests showed that CuFe2O4 degraded approximately 50, 47, and 62% of MB, MO, and TZ dyes, respectively, after 60 min of reaction. On the other hand, the CuFe2O4/biochar composite showed a significant increase in dye degradation, ~ 100%, for all three dyes. This increase in degradation efficiency may be due to less agglomeration of supported particles and due to decreased recombination of electron/hole pairs. Thus, results showed that the photocatalyst composite produced in this study is an effective alternative for removing dyes from wastewater.
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Affiliation(s)
- Jandira Leichtweis
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Nicoly Welter
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Yasmin Vieira
- Graduate Program in Chemistry, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Siara Silvestri
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Elvis Carissimi
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
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17
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da Silva MD, da Boit Martinello K, Knani S, Lütke SF, Machado LMM, Manera C, Perondi D, Godinho M, Collazzo GC, Silva LFO, Dotto GL. Pyrolysis of citrus wastes for the simultaneous production of adsorbents for Cu(II), H 2, and d-limonene. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 152:17-29. [PMID: 35964399 DOI: 10.1016/j.wasman.2022.07.024] [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: 02/05/2022] [Revised: 06/17/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
A route based on pyrolysis and physical activation with H2O and CO2 was proposed to reuse citrus waste traditionally discarded. The citrus wastes were orange peel (OP), mandarine peel (MP), rangpur lime peel (RLP), and sweet lime peel (SLP). The main aim was to use the solid products of this new route as adsorbents for Cu(II) ions. Copper ions are among the most important water pollutants due to their non-degradability, toxicity, and bioaccumulation, facilitating their inclusion and long persistence in the food chain. Besides the solid products, the liquid and gaseous fractions were evaluated for possible applications. Results showed that the citrus waste composition favored the thermochemical treatment. In addition, the following yields were obtained from the pyrolysis process: approximately 30 % wt. of biochar, 40 % wt. of non-condensable gases, and 30 % wt. of bio-oil. The biochars did not present a high specific surface area. Nevertheless, activated carbons with CO2 and H2O presented specific surface areas of 212.4 m2/g and 399.4 m2/g, respectively, and reached Cu(II) adsorption capacities of 28.2 mg g-1 and 27.8 mg g-1. The adsorption kinetic study revealed that the equilibrium was attained at 60 min and the pseudo-second-order model presented a better fit to the experimental data. The main generated gases were CO2, which could be employed as an activating agent for activated carbon production. d-limonene, used for food and medicinal purposes, was the main constituent of the bio-oil.
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Affiliation(s)
- Mariele D da Silva
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, 97105-900 Santa Maria, RS, Brazil
| | | | - Salah Knani
- Northern Border University, College of Science, Arar, PO Box 1631, Saudi Arabia
| | - Sabrina F Lütke
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, 97105-900 Santa Maria, RS, Brazil
| | - Lauren M M Machado
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, 97105-900 Santa Maria, RS, Brazil
| | - Christian Manera
- Engineering of Processes and Technologies Post-Graduate Program, University of Caxias do Sul- UCS, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Daniele Perondi
- Engineering of Processes and Technologies Post-Graduate Program, University of Caxias do Sul- UCS, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Marcelo Godinho
- Engineering of Processes and Technologies Post-Graduate Program, University of Caxias do Sul- UCS, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Gabriela C Collazzo
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, 97105-900 Santa Maria, RS, Brazil
| | - Luis F O Silva
- Universidad de la Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia.
| | - Guilherme L Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, 97105-900 Santa Maria, RS, Brazil.
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Efficient removal of noxious methylene blue and crystal violet dyes at neutral conditions by reusable montmorillonite/NiFe2O4@amine-functionalized chitosan composite. Sci Rep 2022; 12:15499. [PMID: 36109538 PMCID: PMC9478098 DOI: 10.1038/s41598-022-19570-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/31/2022] [Indexed: 11/08/2022] Open
Abstract
The jeopardy of the synthetic dyes effluents on human health and the environment has swiftly aggravated, threatening human survival. Hence, sustained studies have figured out the most acceptable way to eliminate this poisonous contaminant. Thereby, our investigation aimed to fabricate montmorillonite/magnetic NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as a promising green adsorbent to remove the cationic methylene blue (MB) and crystal violet (CV) dyes from the wastewater in neutral conditions. Interestingly, MMT-mAmCs composite carries high negative charges at a wide pH range from 4 to 11 as clarified from zeta potential measurements, asserting its suitability to adsorb the cationic contaminants. In addition, the experimental study confirmed that the optimum pH to adsorb both MB and CV was pH 7, inferring the ability of MMT-mAmCs to adsorb both cationic dyes in simple process conditions. Furthermore, the ferromagnetic behavior of the MMT-mAmCs composite is additional merit to our adsorbent that provides facile, fast, and flawless separation. Notably, the as-fabricated composite revealed an auspicious adsorbability towards the adsorptive removal of MB and CV, since the maximum adsorption capacity of MB and CV were 137 and 118 mg/g, respectively. Moreover, the isotherm and kinetic investigatins depicted that the adsorption of both cationic dyes fitted Langmuir and Pseudo 2nd order models, respectively. Besides, the advanced adsorbent preserved satisfactory adsorption characteristics with maximal removal efficacy exceeding 87% after reuse for ten consecutive cycles. More importantly, MMT-mAmCs efficiently adsorbed MB and CV from real agricultural water, Nile river water and wastewater samples at the neutral pH medium, reflecting its potentiality to be a superb reusable candidate for adsorptive removal cationic pollutants from their aquatic media.
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Huang C, Tang C, Wu Q, Zhu Q. Magnetic MnFe 2O 4/ZnFe-LDH for Enhanced Phosphate and Cr (VI) Removal from Water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:59224-59234. [PMID: 35381917 DOI: 10.1007/s11356-022-20049-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Due to the layered structure and recycling characteristics, magnetic MnFe2O4/ZnFe-LDH was prepared by co-precipitation. In this study, we intensively explored MnFe2O4/ZnFe-LDH for water purification compared with the ZnFe-LDH. The morphological and structural characteristics of the obtained products were systematically characterized. MnFe2O4/ZnFe-LDH exhibits the maximum adsorption capacity of 94.52 mg/g for phosphate and 49.03 mg/g for Cr (VI), respectively, which is superior to that of the ZnFe-LDH, indicating that the magnetic MnFe2O4 effectively enhanced adsorption performance. Meanwhile, the mechanism of adsorption of phosphate and Cr (VI) was briefly studied, where the metal center ion in MnFe2O4/ZnFe-LDH and between layers of SO42- serves as capture sites for phosphate and Cr (VI) removal. Furthermore, the MnFe2O4/ZnFe-LDH can be used for magnetic recycled and still maintained excellent removal efficiency (70%) for phosphate and Cr (VI) after five adsorption-desorption cycles. This work could open a new vista of designing magnetic novel adsorbents in environmental remediation.
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Affiliation(s)
- Congxin Huang
- School of Civil Engineering and Architecture, East China Jiao Tong University, Jiangxi, 330013, China
| | - Chaochun Tang
- School of Civil Engineering and Architecture, East China Jiao Tong University, Jiangxi, 330013, China.
| | - Qingqing Wu
- School of Civil Engineering and Architecture, East China Jiao Tong University, Jiangxi, 330013, China
| | - Qing Zhu
- Continuing Education College, Tongji University, Shanghai, 200092, China
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20
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Xing Y, Chen H, Liu S, Wang W, Liang Y, Fu J. Nanolayer-Constructed TiO(OH) 2 Microstructures for the Efficiently Selective Removal of Cationic Dyes via an Electrostatic Interaction and Adsorption Mechanism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7346-7356. [PMID: 35637204 DOI: 10.1021/acs.langmuir.2c00975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Efficient removal of organic dyes from contaminated water has become a great challenge and urgent work due to increasingly serious environmental problems. Here, we have for the first time prepared nanolayer-constructed TiO(OH)2 microstructures which can present negative charge by deprotonation of the hydroxyl group to efficiently and selectively remove cationic dyes from aqueous solution through electrostatic interaction and an attraction mechanism. The nanolayer-constructed TiO(OH)2 microstructures achieve a high adsorption capacity of 257 mg g-1 for methylene blue (MB). The adsorption kinetics, thermodynamics, and isotherms of MB over the TiO(OH)2 microstructures have been studied systemically. The experimental measurements and corresponding analyses demonstrate that the adsorption process of MB on TiO(OH)2 microstructures follows a kinetic model of pseudo-second-order adsorption, agrees well with the Langmuir isotherm mode, and is a spontaneous and exothermic physisorption. Fourier transform infrared (FT-IR) spectra confirm that the prepared TiO(OH)2 microstructures possess hydroxyl group which can deprotonate to present negative charge in solution. Further experimental studies evidently demonstrate that the TiO(OH)2 microstructures also can remove other cationic dyes with positive charge such as basic yellow 1, basic green 4, and crystal violet but cannot adsorb anionic dye of methyl orange (MO) with negative charge in aqueous solution. The measurements for FT-IR spectra and the adsorption of cationic and anionic dyes evidently reveal that the adsorption of cationic dyes over the TiO(OH)2 microstructures is achieved by the electrostatic interaction and attraction between TiO(OH)2 and the dye. This work opens a strategy for the design of new absorbents to efficiently remove organic dyes from aqueous solution through an electrostatic attraction-driven adsorption process.
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Affiliation(s)
- Yujin Xing
- College of Life and Environmental Science, Minzu University of China, Beijing100081. P. R. China
| | - Huabin Chen
- College of Life and Environmental Science, Minzu University of China, Beijing100081. P. R. China
| | - Sitong Liu
- College of Life and Environmental Science, Minzu University of China, Beijing100081. P. R. China
| | - Wenzhong Wang
- College of Life and Environmental Science, Minzu University of China, Beijing100081. P. R. China
- School of Science, Minzu University of China, Bejing100081, P. R. China
| | - Yujie Liang
- School of Science, Minzu University of China, Bejing100081, P. R. China
| | - Junli Fu
- School of Science, Minzu University of China, Bejing100081, P. R. China
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21
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Sustainable Downstream Separation of Itaconic Acid Using Carbon-Based Adsorbents. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/7333005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Separation of itaconic acid from aqueous solution has been explored using various carbon-based adsorbents obtained from the pyrolysis and KOH activation of coconut shell biomass. The best preparation conditions to obtain a tailored adsorbent for itaconic acid purification were identified via a Taguchi experimental design, where its adsorption properties were maximized. The best activated carbon was obtained via coconut shell pyrolysis at 750 °C for 4 h plus an activation with 0.1 KOH and a final treatment at 800 °C for 2 h. This adsorbent showed an adsorption capacity of 4.31 mmol/g at 20 °C and pH 3 with a surface area of 466 m2/g. Itaconic acid separation was exothermic and pH-dependent where electrostatic forces and hydrogen bonding were the main adsorption interactions. Calculated adsorption rate constants for itaconic acid adsorption were 0.44–1.20 h-1. Results of adsorbent characterization analysis indicated the presence of a crystallization of itaconic acid molecules onto the activated carbon surface where 3–4 molecules could interact to form the clusters. This organic acid was recovered from the adsorbent surface via desorption with water or ethanol, thus facilitating its final purification. The best activated carbon obtained in this study is a promising alternative to perform sustainable and energy-efficient downstream separation and purification of itaconic acid produced via fermentation.
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22
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Gao Y, Shah K, Kwok I, Wang M, Rome LH, Mahendra S. Immobilized fungal enzymes: Innovations and potential applications in biodegradation and biosynthesis. Biotechnol Adv 2022; 57:107936. [PMID: 35276253 DOI: 10.1016/j.biotechadv.2022.107936] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 01/10/2023]
Abstract
Microbial enzymes catalyze various reactions inside and outside living cells. Among the widely studied enzymes, fungal enzymes have been used for some of the most diverse purposes, especially in bioremediation, biosynthesis, and many nature-inspired commercial applications. To improve their stability and catalytic ability, fungal enzymes are often immobilized on assorted materials, conventional as well as nanoscale. Recent advances in fungal enzyme immobilization provide effective and sustainable approaches to achieve improved environmental and commercial outcomes. This review aims to provide a comprehensive overview of commonly studied fungal enzymes and immobilization technologies. It also summarizes recent advances involving immobilized fungal enzymes for the degradation or assembly of compounds used in the manufacture of products, such as detergents, food additives, and fossil fuel alternatives. Furthermore, challenges and future directions are highlighted to offer new perspectives on improving existing technologies and addressing unexplored fields of applications.
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Affiliation(s)
- Yifan Gao
- Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, United States
| | - Kshitjia Shah
- Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, United States
| | - Ivy Kwok
- Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, United States
| | - Meng Wang
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Leonard H Rome
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, United States; California NanoSystems Institute, University of California, Los Angeles, CA 90095, United States
| | - Shaily Mahendra
- Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, United States; California NanoSystems Institute, University of California, Los Angeles, CA 90095, United States.
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23
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Rallet D, Paltahe A, Tsamo C, Loura B. Synthesis of clay-biochar composite for glyphosate removal from aqueous solution. Heliyon 2022; 8:e09112. [PMID: 35313486 PMCID: PMC8933680 DOI: 10.1016/j.heliyon.2022.e09112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/31/2022] [Accepted: 03/10/2022] [Indexed: 12/14/2022] Open
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Song G, Qin F, Yu J, Tang L, Pang Y, Zhang C, Wang J, Deng L. Tailoring biochar for persulfate-based environmental catalysis: Impact of biomass feedstocks. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127663. [PMID: 34799169 DOI: 10.1016/j.jhazmat.2021.127663] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/23/2021] [Accepted: 10/28/2021] [Indexed: 05/28/2023]
Abstract
Biochar, a carbonaceous material with engineering potential, has gained attention as an efficient catalyst in persulfate-based advanced oxidation processes (PS-AOPs). Although biomass feedstocks are known as a critical factor for the performance of biochar, the relationship between the catalytic efficiency/mechanism and the types of biomass feedstocks is still unclear. Thus, according to recent advances in experimental and theoretical researches, this paper provides a systematic review of the properties of biochar, and the relationship between catalytic performance in PS-AOPs and biomass feedstocks, where the differences in physicochemical properties (surface properties, pore structure, etc.) and activation path of different sourced biochars, are introduced. In addition, how the tailoring of biochar (such as heteroatomic doping and co-pyrolysis of biomass) affects its activation efficiency and mechanism in PS-AOPs is summarized. Finally, the suitable application scenarios or systems of different sourced biochars, appropriate methods to improve the catalytic performance of different types of biochar and the prospects and challenges for the development of biochar in PS-AOPs are proposed.
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Affiliation(s)
- Ge Song
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China
| | - Fanzhi Qin
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China
| | - Jiangfang Yu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
| | - Ya Pang
- Department of Biology and Environmental Engineering, Changsha University, Changsha 410003, Hunan, China.
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China
| | - Jiajia Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China
| | - Lifei Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, Hunan, China
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25
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Fraga TJM, da Silva MP, de Luna Freire EMP, Almeida LC, da Motta Sobrinho MA, Ghislandi MG, Carvalho MN. Amino-functionalized graphene oxide supported in charcoal from the gasification of furniture scraps: from one-pot synthesis to wastewater remediation. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Osman AI, Fawzy S, Farghali M, El-Azazy M, Elgarahy AM, Fahim RA, Maksoud MIAA, Ajlan AA, Yousry M, Saleem Y, Rooney DW. Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2022; 20:2385-2485. [PMID: 35571983 PMCID: PMC9077033 DOI: 10.1007/s10311-022-01424-x] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 02/22/2022] [Indexed: 05/06/2023]
Abstract
In the context of climate change and the circular economy, biochar has recently found many applications in various sectors as a versatile and recycled material. Here, we review application of biochar-based for carbon sink, covering agronomy, animal farming, anaerobic digestion, composting, environmental remediation, construction, and energy storage. The ultimate storage reservoirs for biochar are soils, civil infrastructure, and landfills. Biochar-based fertilisers, which combine traditional fertilisers with biochar as a nutrient carrier, are promising in agronomy. The use of biochar as a feed additive for animals shows benefits in terms of animal growth, gut microbiota, reduced enteric methane production, egg yield, and endo-toxicant mitigation. Biochar enhances anaerobic digestion operations, primarily for biogas generation and upgrading, performance and sustainability, and the mitigation of inhibitory impurities. In composts, biochar controls the release of greenhouse gases and enhances microbial activity. Co-composted biochar improves soil properties and enhances crop productivity. Pristine and engineered biochar can also be employed for water and soil remediation to remove pollutants. In construction, biochar can be added to cement or asphalt, thus conferring structural and functional advantages. Incorporating biochar in biocomposites improves insulation, electromagnetic radiation protection and moisture control. Finally, synthesising biochar-based materials for energy storage applications requires additional functionalisation.
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Affiliation(s)
- Ahmed I. Osman
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG Northern Ireland UK
| | - Samer Fawzy
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG Northern Ireland UK
| | - Mohamed Farghali
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555 Japan
- Department of Animal and Poultry Hygiene and Environmental Sanitation, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526 Egypt
| | - Marwa El-Azazy
- Department of Chemistry, Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, 2713 Doha, Qatar
| | - Ahmed M. Elgarahy
- Environmental Science Department, Faculty of Science, Port Said University, Port Said, Egypt
- Egyptian Propylene and Polypropylene Company (EPPC), Port-Said, Egypt
| | - Ramy Amer Fahim
- National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - M. I. A. Abdel Maksoud
- National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Abbas Abdullah Ajlan
- Department of Chemistry -Faculty of Applied Science, Taiz University, P.O.Box 6803, Taiz, Yemen
| | - Mahmoud Yousry
- Faculty of Engineering, Al-Azhar University, Cairo, 11651 Egypt
- Cemart for Building Materials and Insulation, postcode 11765, Cairo, Egypt
| | - Yasmeen Saleem
- Institute of Food and Agricultural Sciences, Soil and Water Science, The University of Florida, Gainesville, FL 32611 USA
| | - David W. Rooney
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG Northern Ireland UK
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27
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Zhang Y, Zheng Y, Yang Y, Huang J, Zimmerman AR, Chen H, Hu X, Gao B. Mechanisms and adsorption capacities of hydrogen peroxide modified ball milled biochar for the removal of methylene blue from aqueous solutions. BIORESOURCE TECHNOLOGY 2021; 337:125432. [PMID: 34171704 DOI: 10.1016/j.biortech.2021.125432] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
In this work, hickory chip biochars developed at distinctive pyrolysis temperatures were ball milled (BMHC) and then post-modified with a 10% hydrogen peroxide (H2O2) solution to obtain a set of novel sorbents (BMHC-H2O2). The specific surface area (SSA) was dramatically increased after ball-milling while the hydroxyl and carboxyl groups on the surface of the biochars were further increased through H2O2 modification. Additionally, thermal stability of the biochar treated with ball-milling was not greatly reduced by H2O2 modification and hydrodynamic radius was decreased. Ball milling enhanced the adsorption efficiency to methylene blue (MB) by the biochar, and this ability was further increased by H2O2 modification, because of the increasing in oxygen-containing functional groups (OCFG) to interact with MB. The rate of MB adsorption to BMHC-H2O2 was faster than that of BMHC, reaching equilibrium after about 6 h. Among adsorbents tested, the 450 °C BMHC-H2O2 had the greatest MB adsorption capacity (310 mg g-1).
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Affiliation(s)
- Yue Zhang
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States
| | - Yulin Zheng
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States
| | - Yicheng Yang
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States
| | - Jinsheng Huang
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States
| | - Andrew R Zimmerman
- Department of Geological Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Hao Chen
- Department of Agriculture, University of Arkansas at Pine Bluff, Pine Bluff, AR 71601, USA
| | - Xin Hu
- Center of Material Analysis, Nanjing University, Nanjing 210093, China
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States.
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28
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Zaki EG, Mohmed D, Hussein MF, El-Zayat MM, Soliman FS, Aman D. Assessment of polyethylene/Zn-ionic as a diesel fuel sulfur adsorbent: gamma radiation effect and response surface methodology. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:52993-53009. [PMID: 34023992 DOI: 10.1007/s11356-021-14501-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Irradiated waste high-density polyethylene@Zn/ionic liquid novel composite well-fabricated via coacervation method was irradiated by gamma-irradiation and studied the effect of that radiation on the desulfurization process. The prepared composites were characterized by various analytical techniques as follows: X-ray diffraction (XRD), Fourier-Transform infrared (FT-IR), X-ray photoelectron spectrometer (XPS), scanning electron microscope (SEM), High Resolution Transmission Electron Microscopy (HRTEM), N2-adsorption-desorption isotherm, and thermal gravimetric analysis (TG/DTA). The adsorptive desulfurization process of benzothiophene (BT) and dibenzothiophene (DBT) which are harmful compounds in diesel model fuel was investigating using the irradiated and unirradiated composite. The results illustrated that the unirradiated and irradiated composites exhibit an adequate adsorption capacity reached (50-75 mg S/g) and (60-85 mg S/g) for BT and DBT, respectively. The adsorption process over the prepared adsorbents follows the pseudo-second-order kinetic models. The irradiated composite exhibited more adsorption capacity than the unirradiated one due to the radiation generated more surface area and created proton-bond donor sites in the composite surface, which increases the interaction between the surface and sulfur species. The adsorption capacity and adsorption percentage for irradiated and unirradiated composites towards (SCCs) were studied using response surface methodology based on the central composite design (CCD). The thermodynamic factors (∆H°, ∆G°, and ∆S°) reveal that these processes are endothermic adsorption processes. The irradiated PEt @Zn/IL was re-used without significant loss of adsorption activity. This novel irradiated PEt @Zn/IL is the first time used as an adsorbent with an advantage that includes its excellent adsorption capacity, which ensures the product will be efficient in a real process such as the petrochemical industry.
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Affiliation(s)
- Elsayed Gamal Zaki
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, 11727, Egypt.
| | - Dina Mohmed
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, 11727, Egypt
| | - Modather Farouk Hussein
- Chemistry department, Faculty of Science, Al-Azhar University, Assuit, Egypt
- Chemistry department, college of Science, Jouf University, Sakakah, Kingdom of Saudi Arabia
| | - Mai Mahmoud El-Zayat
- National Center for Radiation Research and Technology, Atomic Energy Authority, Nasr City, Cairo, 11787, Egypt
| | - Fathi Samir Soliman
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, 11727, Egypt
- EPRI-Nanotechnology Center, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt
| | - Delvin Aman
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, 11727, Egypt.
- EPRI-Nanotechnology Center, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt.
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29
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Verification of pore size effect on aqueous-phase adsorption kinetics: A case study of methylene blue. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127119] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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30
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de Araújo TP, Tavares FDO, Vareschini DT, Barros MASD. Biosorption mechanisms of cationic and anionic dyes in a low-cost residue from brewer's spent grain. ENVIRONMENTAL TECHNOLOGY 2021; 42:2925-2940. [PMID: 31958234 DOI: 10.1080/09593330.2020.1718217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
The brewer's spent grain (BSG) is a byproduct of the brewing industry produced in large quantities and with few ecological disposal options. The use of this low-cost residue was investigated for the removal of methylene blue (MB) and tartrazine yellow (TY) dyes. The BSG has been extensively characterized to obtain its physicochemical characteristics. Batch experiments were conducted to investigate the effects of biosorption parameters: initial pH, kinetics, equilibrium isotherms and adsorption thermodynamics. The characterization showed high carbon content and heterogeneous morphology with the presence of meso and macropores. The best experimental conditions were obtained as pH 11 for MB and pH 2 for TY. Kinetics resulted in an equilibrium time of 240 min for MB and 300 min for TY and was best represented by the pseudo-second order model. Different interaction mechanisms were suggested, such as electrostatic interactions, electron donors and electron acceptors, hydrogen bonds, π-π dispersion interactions and the dye molecules aggregation. Equilibrium data were better represented by Langmuir isotherm. The maximum adsorbed amount of MB and TY was 284.75 and 26.18 mg/g, respectively, in each better experimental condition. Through the thermodynamic analysis, it was observed that the adsorption of the dyes was spontaneous and favourable. MB is preferentially retained through chemisorption, whereas TY followed a physical process. Considering the characteristics and results found compared to the recent literature, it was verified that BSG can be used as an effective and innovative biosorbent for removal purposes of dyeing effluent.
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31
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Adsorption mechanisms of single and simultaneous removal of pharmaceutical compounds onto activated carbon: Isotherm and thermodynamic modeling. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116203] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Tahazadeh S, Karimi H, Mohammadi T, Emrooz HBM, Tofighy MA. Fabrication of biodegradable cellulose acetate/MOF-derived porous carbon nanocomposite adsorbent for methylene blue removal from aqueous solutions. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122180] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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33
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Shahr El-Din AM, Labib S, Allan KF, Attallah MF. Novel nano network trigonal prismatic Ba 2CoO 4-deficient BaCoO 3 for high-affinity sorption of radiolanthanide elements of biomedical applications: synthesis and sorption studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:21936-21949. [PMID: 33411294 DOI: 10.1007/s11356-020-12233-6] [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: 08/29/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
Nano trigonal prismatic Ba2CoO4 with hierarchical structure and deficient BaCoO3 with columnar structure have been prepared at low temperatures (400 [BC4] and 500 [BC5]) °C/3h using green method. X-ray diffraction (XRD) results demonstrate the presence of enriched Ba2CoO4 phase at 400 °C and multiphase structures: BaCoO3, BaCoO3-δ, and Co3O4 with a decrease in the amount of Ba2CoO4 at 500 °C. The prepared powders are characterized by a high specific surface area (SSA) values which are reflected to the mode of synthesis that leads to produce materials with massive active sites. The SSA of BC4 is higher than that of BC5 which can be correlated to the difference in the microstructure analysis of BC4 and BC5 as given from scanning electron microscope (SEM) and high-resolution transmission electron microscope (HRTEM) studies. Electron spin resonance (ESR) spectroscopy as an effective method for the characterization of vacancy-rich nanostructures indicates that the presence of oxygen vacancies is related mainly to BaCoO3, BaCoO3-δ, and Co3O4 phases while the effective oxygen vacancies is in BaCoO3 and BaCoO3-δ. The nanocrystalline structures of BC4 and BC5 as novel nano-adsorbents are the first time to be tested. Production of Gd radioisotopes through natGd(n,γ)153,159,161Gd and carrier-free 161Tb through 160Gd(n,γ,) 161Gd [Formula: see text] 161Tb are achieved at 2nd Egyptian nuclear research reactor (ETRR-2). Preliminary sorption study of Gd radioisotopes (represent the lanthanide elements) shows a promising material for the application in the separation and removal of lanthanide elements. The results demonstrated that the fast interaction and efficient sorption of lanthanides ions are based on the novel synthesized nanomaterial that can be considered for the upscale application in this field.
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Affiliation(s)
- Ahmed M Shahr El-Din
- Analytical Chemistry and Control Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Abu Zaabal, Cairo, 13759, Egypt
| | - Shiraz Labib
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Abu Zaabal, Cairo, 13759, Egypt
| | - Karam F Allan
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Abu Zaabal, Cairo, 13759, Egypt
| | - Mohamed F Attallah
- Analytical Chemistry and Control Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Abu Zaabal, Cairo, 13759, Egypt.
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34
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Wystalska K, Kwarciak-Kozłowska A. The Effect of Biodegradable Waste Pyrolysis Temperatures on Selected Biochar Properties. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1644. [PMID: 33801643 PMCID: PMC8037663 DOI: 10.3390/ma14071644] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 02/06/2023]
Abstract
Biochars produced during biodegradable waste pyrolysis are products with a wide range of environmental applications. The effect of impact biochars depends on their properties which determine the course of specific processes. The main aim of the study was to investigate the effect of pyrolysis temperature on selected properties of biochar produced from various plant wastes (beech wood chips, walnut shells, wheat-rye straw), the valorization of which is of key importance for the implementation of the circular economy. Biochars were produced at temperatures of: 400 °C, 500 °C, 600 °C and 700 °C in a nitrogen atmosphere. An increase in the pyrolysis temperature caused a drop in the biochar production yield. As the temperature increased, higher carbon content and lower hydrogen content could be seen in the products obtained. An increase in the pH and total organic carbon (TOC) values also found. The influence of temperature on ash content, observed in the case of BWS (biochar from walnut shell) and BWRS (biochar from wheat and rye straw), did not occur in the case of BWC (biochar from beech wood chips). Another parameter that demonstrated a growing tendency with increasing temperature was the BET specific surface area (except for biochars from wheat and rye straw). An increase in pyrolysis temperature caused a decrease in the diversity and density of the surface functional groups of biochars. The influence of the type of precursor used in the production of biochar on the presence of surface functional groups was demonstrated. The presence of intense stretching vibrations of C-O bonds, having a potential impact on the sorption capacity of biochars, was determined in the FTIR spectra of BWC600 and BWC700 biochars, this feature, combined with the large BET surface area, may affect the sorption potential of these biochars. The presence of this type of high-intensity vibrations was also observed in the spectra of biochar BWRS600 and BWRS700. This can compensate for the low BET surface value and play an important role when using these biochars in sorption processes for organic and inorganic compounds.
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Affiliation(s)
- Katarzyna Wystalska
- Faculty of Infrastructure and Environment, Czestochowa University of Technology, 42-200 Czestochowa, Poland;
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35
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Guilhen SN, Rovani S, Araujo LGD, Tenório JAS, Mašek O. Uranium removal from aqueous solution using macauba endocarp-derived biochar: Effect of physical activation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:116022. [PMID: 33221084 DOI: 10.1016/j.envpol.2020.116022] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/16/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
The main aim of this study was to evaluate options for addressing two pressing challenges related to environmental quality and circular economy stemming from wastage or underutilization of abundant biomass residue resources and contamination of water by industrial effluents. In this study we focused on residues (endocarp) from Macaúba palm (Acrocomia aculeata) used for oil production, its conversion to activated biochar, and its potential use in uranium (U) removal from aqueous solutions. Batch adsorption experiments showed a much higher uranyl ions (U(VI)) removal efficiency of activated biochar compared to untreated biochar. As a result of activation, an increase in removal efficiency from 80.5% (untreated biochar) to 99.2% (after activation) was observed for a 5 mg L-1 initial U(VI) concentration solution adjusted to pH 3 using a 10 g L-1 adsorbent dosage. The BET surface area increased from 0.83 to 643 m2 g-1 with activation. Surface topography of the activated biochar showed a very characteristic morphology with high porosity. Activation significantly affected chemical surface of the biochar. FTIR analysis indicated that U(VI) was removed by physisorption from the aqueous solution. The adsorbed U(VI) was detected by micro X-ray fluorescence technique. Adsorption isotherms were employed to represent the results of the U adsorption onto the activated biochar. An estimation of the best fit was performed by calculating different deviation equations, also called error functions. The Redlich-Peterson isotherm model was the most appropriate for fitting the experimental data, suggesting heterogeneity of adsorption sites with different affinities for uranium setting up as a hybrid adsorption. These results demonstrated that physical activation significantly increases the adsorption capacity of macauba endocarp-derived biochar for uranium in aqueous solutions, and therefore open up a potential new application for this type of waste-derived biochar.
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Affiliation(s)
- Sabine N Guilhen
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, Av. Professor Lineu Prestes, 2242 - 05508-000, São Paulo, Brazil.
| | - Suzimara Rovani
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, Av. Professor Lineu Prestes, 2242 - 05508-000, São Paulo, Brazil.
| | - Leandro G de Araujo
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, Av. Professor Lineu Prestes, 2242 - 05508-000, São Paulo, Brazil.
| | - Jorge A S Tenório
- Depto. de Engenharia Química da Escola Politécnica, Universidade de São Paulo, Rua do Lago, 250 - 05508-080, São Paulo, Brazil.
| | - Ondřej Mašek
- UK Biochar Research Centre, School of Geosciences, University of Edinburgh, Alexander Crum Brown Road, Crew Building, EH9 3LA, Edinburgh, UK.
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Lopes GK, Zanella HG, Spessato L, Ronix A, Viero P, Fonseca JM, Yokoyama JT, Cazetta AL, Almeida VC. Steam-activated carbon from malt bagasse: Optimization of preparation conditions and adsorption studies of sunset yellow food dye. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Zhang X, Yi G, Zhang Z, Yu J, Fan H, Li P, Zeng H, Xing B, Chen L, Zhang C. Magnetic graphene-based nanocomposites as highly efficient absorbents for Cr(VI) removal from wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:14671-14680. [PMID: 33216298 DOI: 10.1007/s11356-020-11634-x] [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: 08/04/2020] [Accepted: 11/10/2020] [Indexed: 06/11/2023]
Abstract
Due to the merits of their high adsorption and convenient separation, magnetic graphene-based composites have become a promising adsorbent in terms of wastewater treatment. However, recycling and regeneration properties of magnetic graphene-based composites are still a conundrum, which remains to be resolved. Here, Fe3O4/reduced graphene oxide (RGO) (Fe3O4/RGO) nanocomposites were synthesized by one-step solvent-thermal reduction route and used as adsorbents for water purification. It was encouraging to find that the nanocomposites possessed many intriguing properties in removing of Cr(VI) ions, including high adsorption efficiency and excellent recycling and regeneration property. The results indicated that the magnetic separation process of the Fe3O4/RGO nanocomposites only took less than 5 s and the maximum removal efficiency of Cr(VI) reached 99.9% under the optimum experimental conditions. Most significantly, the adsorption rate of Cr(VI) can still be as high as 98.13% after 10 cycles and the single recycle quality of the nanocomposites can maintain at more than 80%. As a result, the Fe3O4/RGO nanocomposites could be a potential adsorbent for removing heavy metal ions effectively, especially in environmental protection and restoration.
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Affiliation(s)
- Xiuxiu Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Guiyun Yi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China.
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China.
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China.
| | - Zhengting Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Jia Yu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Haiyang Fan
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Peng Li
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Huihui Zeng
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Baolin Xing
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Lunjian Chen
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
| | - Chuanxiang Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
- Collaborative Innovation Center of Coal Work Safety of Henan Province, Jiaozuo, 454003, China
- Henan Key Laboratory of Coal Green Conversion, Jiaozuo, 454003, China
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The Potential of Selected Agri-Food Loss and Waste to Contribute to a Circular Economy: Applications in the Food, Cosmetic and Pharmaceutical Industries. Molecules 2021; 26:molecules26020515. [PMID: 33478152 PMCID: PMC7835992 DOI: 10.3390/molecules26020515] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 12/13/2022] Open
Abstract
The food sector includes several large industries such as canned food, pasta, flour, frozen products, and beverages. Those industries transform agricultural raw materials into added-value products. The fruit and vegetable industry is the largest and fastest-growing segment of the world agricultural production market, which commercialize various products such as juices, jams, and dehydrated products, followed by the cereal industry products such as chocolate, beer, and vegetable oils are produced. Similarly, the root and tuber industry produces flours and starches essential for the daily diet due to their high carbohydrate content. However, the processing of these foods generates a large amount of waste several times improperly disposed of in landfills. Due to the increase in the world’s population, the indiscriminate use of natural resources generates waste and food supply limitations due to the scarcity of resources, increasing hunger worldwide. The circular economy offers various tools for raising awareness for the recovery of waste, one of the best alternatives to mitigate the excessive consumption of raw materials and reduce waste. The loss and waste of food as a raw material offers bioactive compounds, enzymes, and nutrients that add value to the food cosmetic and pharmaceutical industries. This paper systematically reviewed literature with different food loss and waste by-products as animal feed, cosmetic, and pharmaceutical products that strongly contribute to the paradigm shift to a circular economy. Additionally, this review compiles studies related to the integral recovery of by-products from the processing of fruits, vegetables, tubers, cereals, and legumes from the food industry, with the potential in SARS-CoV-2 disease and bacterial diseases treatment.
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Development of hydrophobic polyurethane/castor oil biocomposites with agroindustrial residues for sorption of oils and organic solvents. J Colloid Interface Sci 2021; 581:442-454. [DOI: 10.1016/j.jcis.2020.07.091] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 07/14/2020] [Accepted: 07/18/2020] [Indexed: 01/03/2023]
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de Salomón YLO, Georgin J, Franco DSP, Netto MS, Foletto EL, Allasia D, Dotto GL. Application of seed residues from Anadenanthera macrocarpa and Cedrela fissilis as alternative adsorbents for remarkable removal of methylene blue dye in aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:2342-2354. [PMID: 32885336 DOI: 10.1007/s11356-020-10635-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Two novel ecological and low-cost adsorbents were prepared from seed residues of the tree species Anadenanthera macrocarpa and Cedrela fissilis for the removal of methylene blue dye in water. The materials were comminuted and characterized by different techniques. The particles of samples have a rough surface with cavities. The optimum dosage and pH for both materials were 1 g L-1 and pH 8. The pseudo-second-order model was the most suitable for describing the adsorption kinetics for both systems. The Anadenanthera macrocarpa presented a maximum experimental capacity of 228 mg g-1, while the Cedrela fissilis, a similar capacity of 230 mg g-1 at 328 K. The Tóth model was proper for describing the equilibrium curves for both systems. The thermodynamic indicators show that the adsorption process is spontaneous and endothermic for both materials. The application of materials for the simulated effluent treatment showed 74 and 78% of color removal using Anadenanthera macrocarpa and Cedrela fissilis samples, respectively. Overall, seed residues of Anadenanthera macrocarpa and Cedrela fissilis could be potentially applied for adsorptive removal of colored contaminants in wastewater.
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Affiliation(s)
- Yamil L O de Salomón
- Sanitary and Environmental Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Jordana Georgin
- Sanitary and Environmental Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Dison S P Franco
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, Roraima Avenue 1000, Santa Maria, RS, 97105-900, Brazil
| | - Matias Schadeck Netto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, Roraima Avenue 1000, Santa Maria, RS, 97105-900, Brazil
| | - Edson Luiz Foletto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, Roraima Avenue 1000, Santa Maria, RS, 97105-900, Brazil
| | - Daniel Allasia
- Sanitary and Environmental Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, Roraima Avenue 1000, Santa Maria, RS, 97105-900, Brazil.
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Al-Ghouti MA, Al-Absi RS. Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater. Sci Rep 2020; 10:15928. [PMID: 32985568 PMCID: PMC7522081 DOI: 10.1038/s41598-020-72996-3] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 08/20/2020] [Indexed: 11/28/2022] Open
Abstract
In the current study, the mechanistic understanding of the adsorption isotherm and thermodynamic aspects of cationic methylene blue (MB) dye adsorption onto cellulosic olive stones biomass from wastewater were investigated. The batch adsorption of MB onto the olive stones (black and green olive stones) was tested at a variety of pH, dye concentrations, temperatures, and biomass particle sizes. The adsorption thermodynamics such as Gibbs free energy, enthalpy, and entropy changes were also calculated. Moreover, the desorption studies of MB from the spent olive stones were studied to explore the re-usability of the biomasses. The results revealed that under the optimum pH of 10, the maximum MB uptake was achieved i.e. 80.2% for the green olive stones and 70.9% for the black olive stones. The green olive stones were found to be more efficient in remediating higher MB concentrations from water than the black olive stones. The highest MB removal of the green olive stones was achieved at 600 ppm of MB, while the highest MB removal of the black olive stones was observed at 50 ppm of MB. Furthermore, for almost all the concentrations studied (50-1000 ppm), the MB adsorption was the highest at the temperature of 45 °C (P value < 0.05). It was shown by the Fourier transform infrared that the electrostatic interaction and hydrogen bonding were proposed as dominant adsorption mechanisms at basic and acidic pH, respectively. While the hydrophobic-hydrophobic interaction was a dominant mechanism at neutral pH. The thermodynamic studies revealed that the adsorption process was endothermic, spontaneous, and favorable. Moreover, the real wastewater experiment and the desorption studies showed that the green and black olive stones were a cost-effective and promising adsorbents for MB remediation from wastewater on account of their high adsorption and desorption removal capacities.
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Affiliation(s)
- Mohammad A Al-Ghouti
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, State of Qatar.
| | - Rana S Al-Absi
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, State of Qatar
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Wang K, Peng N, Sun J, Lu G, Chen M, Deng F, Dou R, Nie L, Zhong Y. Synthesis of silica-composited biochars from alkali-fused fly ash and agricultural wastes for enhanced adsorption of methylene blue. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 729:139055. [PMID: 32388132 DOI: 10.1016/j.scitotenv.2020.139055] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/16/2020] [Accepted: 04/26/2020] [Indexed: 05/22/2023]
Abstract
Two types of silica-composited biochars were prepared by mixing swine manure or rice straw with alkali-fused fly ash (AFFA) followed by pyrolysis. A 10% (w/w) AFFA modification improved the specific surface area, pore volume, and average pore size of the biochars. Certain surface oxygen-containing functional groups (i.e., -OH and CO) in the biochars were protected, and silicon-oxygen bonds (i.e., O-Si-O and OSi) were strengthened considerably by AFFA modifications during high-temperature pyrolysis. The adsorption capacity of biochar for methylene blue (MB) was enhanced after AFFA modification, and a modified biochar with the highest adsorption capacity was prepared at a pyrolysis temperature of 700 °C, pyrolysis holding time of 2 h, and an AFFA proportion of 10%. The MB adsorption capacity of the modified biochars significantly increased when the pH of the solution increased (from 3 to 13). The adsorption data were well described by a pseudo-second-order model and Langmuir isotherms. The maximum MB adsorption capacities of the modified swine manure and rice straw biochars were 143.76 mg/g and 131.58 mg/g, respectively. The adsorption capacities of the AFFA-modified biochars were 10.7-112.3% higher than those of the unmodified biochars. The enhanced MB adsorption capacities of the former appear to be attributed to their increased specific surface areas, increased porosities, strong oxygen-containing functional groups, and high contents of exchangeable sodium ions. These results indicate that industrial and agricultural wastes can be reused to produce novel silica-composited biochars with high MB removal capacity. Accordingly, these biochars could be effectively used to treat wastewater and thus to mitigate solid waste disposal-related problems.
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Affiliation(s)
- Kaifeng Wang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Na Peng
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China.
| | - Jianteng Sun
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Guining Lu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China
| | - Meiqin Chen
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Fucai Deng
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Rongni Dou
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Lijun Nie
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Yongming Zhong
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
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Machado LMM, Lütke SF, Perondi D, Godinho M, Oliveira MLS, Collazzo GC, Dotto GL. Simultaneous production of mesoporous biochar and palmitic acid by pyrolysis of brewing industry wastes. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 113:96-104. [PMID: 32526638 DOI: 10.1016/j.wasman.2020.05.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/05/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Pyrolysis of malt bagasse was carried out to obtain simultaneously a mesoporous biochar and an oil fraction rich in palmitic acid. The best result for biochar production was at 500 °C with holding time of 10 min. The yields of biochar and pyrolytic oil in this condition were, 29.7 and 33.9 wt%, respectively. The pyrolysis temperature and holding time influenced the yields of the products. An increase in pyrolysis temperature (from 500 to 700 °C) and holding time (from 10 to 50 min) caused a decrease in biochar yield, a reduction in the volatile matter content and an increase in the amount of ash. Additionally, in the range studied in this work, the increase of the pyrolysis temperature caused a decrease in the specific surface area and total pore volume of the biochar. Meanwhile, the biochar presented interesting functional groups and a mesoporous character, which can be a precursor to obtain adsorbents, or even, be used as adsorbent. The pyrolytic oil was composed of oxygenated aromatic compounds, the main fraction being palmitic acid (27.3%), which can be used in a number of applications, including biodiesel production. This work demonstrated that an available and problematic waste, malt bagasse, can be converted simultaneously into a mesoporous biochar and, into a pyrolytic oil rich in palmitic acid. Biochar and pyrolytic oil, in turn, are products of great value and can be applied in several fields.
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Affiliation(s)
- Lauren M M Machado
- Chemical Engineering Department, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - Sabrina F Lütke
- Chemical Engineering Department, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - Daniele Perondi
- Postgraduate Program in Engineering Processes and Technology, University of Caxias do Sul - UCS, Caxias do Sul, RS, Brazil
| | - Marcelo Godinho
- Postgraduate Program in Engineering Processes and Technology, University of Caxias do Sul - UCS, Caxias do Sul, RS, Brazil
| | - Marcos L S Oliveira
- Department of Civil and Environmental, Universidad De La Costa, Calle 58 #55-66, 080002 Barranquilla, Atlántico, Colombia; Faculdade Meridional IMED, 304, Passo Fundo, RS 99070-220, Brazil.
| | - Gabriela C Collazzo
- Chemical Engineering Department, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - Guilherme L Dotto
- Chemical Engineering Department, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil.
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Zazycki MA, Perondi D, Godinho M, Oliveira MLS, Collazzo GC, Dotto GL. Conversion of MDF wastes into a char with remarkable potential to remove Food Red 17 dye from aqueous effluents. CHEMOSPHERE 2020; 250:126248. [PMID: 32092573 DOI: 10.1016/j.chemosphere.2020.126248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/07/2020] [Accepted: 02/15/2020] [Indexed: 06/10/2023]
Abstract
Medium density fiberboard (MDF) wastes were converted into an efficient char able to uptake Food Red 17 dye (FR17) from colored effluents. The yield of the pyrolysis process, in terms of char, was 29%. The produced char presented micro and mesoporous, with surface area of 218.8 m2 g-1 and total pore volume of 0.122 cm3 g-1. Regarding to the FR17 adsorption, removal percentages of 90% were found at pH 2 and using 0.5 g L-1 of char. Pseudo-first and pseudo-second order models were adequate to represent the adsorption kinetic profile, being the equilibrium reached within 20 min. Freundlich model was selected to represent the equilibrium data. The maximum adsorption capacity was 210 mg g-1. The adsorption of FR17 on the char was endothermic and physical in nature. The char was efficient for 8 adsorption-desorption cycles, maintaining the same adsorption capacity. In brief, this work demonstrated a useful practice in terms of cleaner production. It was possible add value to MDF wastes, generating an efficient and reusable adsorbent to treat colored effluents containing FR 17 dye.
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Affiliation(s)
- M A Zazycki
- Chemical Engineering Department, Federal University of Santa Maria, UFSM, Roraima Avenue, 1000, 97105-900, Santa Maria, RS, Brazil.
| | - D Perondi
- Postgraduate Program in Engineering Processes and Technology, University of Caxias do Sul - UCS, Caxias do Sul, RS, Brazil.
| | - M Godinho
- Postgraduate Program in Engineering Processes and Technology, University of Caxias do Sul - UCS, Caxias do Sul, RS, Brazil.
| | - M L S Oliveira
- Department of Civil and Environmental, Universidad De La Costa, Calle 58 #55-66, 080002, Barranquilla, Atlántico, Colombia; Faculdade Meridional IMED, 304-Passo Fundo, RS, 99070-220, Brazil.
| | - G C Collazzo
- Chemical Engineering Department, Federal University of Santa Maria, UFSM, Roraima Avenue, 1000, 97105-900, Santa Maria, RS, Brazil.
| | - G L Dotto
- Chemical Engineering Department, Federal University of Santa Maria, UFSM, Roraima Avenue, 1000, 97105-900, Santa Maria, RS, Brazil.
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Al-Ghouti MA, Dib SS. Utilization of nano-olive stones in environmental remediation of methylene blue from water. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:63-77. [PMID: 32399221 PMCID: PMC7203364 DOI: 10.1007/s40201-019-00438-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 12/30/2019] [Indexed: 06/11/2023]
Abstract
BACKGROUND The use of agricultural waste as a low-cost adsorbent for the removal of hazardous methylene blue (MB) from aqueous solution was investigated. In this research, the potentiality of using black nano olive stones (black NOS) and green nano olive stones (green NOS) for MB adsorption was conducted. METHODS Various remediation parameters such as initial MB concentration, pH, and temperature were investigated. Thermodynamic study was carried out to determine the homogeneity of the adsorbent and spontaneity of the adsorption process. Different physical and chemical characterizations were studied using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET) surface area, pore radius and pore volume. RESULTS It was found that NOS exhibits an acidic nature, however the highest MB removal efficiency was recorded at pH 10; reaching up to 71%. The negative value of the heat of the adsorption process (∆H ° ) indicated the reaction followed an exothermic pathway while the negative value of Gibbs adsorption (∆G ° ) further suggested its spontaneous nature. The results indicated that the Freundlich model described well the adsorption process with 99.5% correlation coefficient for green NOS. FTIR was used to analyze functional groups on the adsorbents' surfaces that could play vital roles in the remediation process. SEM analysis revealed that the adsorbents comprised of abundant spherical deep cavities and porous nature. CONCLUSION The result obtained successfully demonstrated the potential of using black and green NOS as suitable adsorbents for the removal of MB from water.
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Affiliation(s)
- Mohammad A. Al-Ghouti
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar
| | - Samah S. Dib
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar
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Ma Y, Cao J. Facile preparation of magnetic porous carbon monolith from waste corrugated cardboard box for solar steam generation and adsorption. BIOMASS CONVERSION AND BIOREFINERY 2020; 12:2185-2202. [PMID: 32395400 PMCID: PMC7209767 DOI: 10.1007/s13399-020-00739-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/07/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Porous carbon monoliths (PCMs) were prepared from waste corrugated cardboard box (WCCB) via slurrying in FeCl3 solution followed by molding and thermal treatment. The thermal process was analyzed by a thermogravimetric analyzer coupled with a Fourier transform infrared spectrometer. The evolution of physicochemical characteristics of PCMs was studied. The photothermal conversion and solar steam generation performances of the optimal sample (PCMFe/600) were evaluated. The adsorption properties of PCMFe/600 for methylene blue (MB) were investigated. Results showed that Fe3+ promoted the breaking of cellulose chains in WCCB, leading to the occurrence of pyrolysis of WCCB at lower temperatures and the reduction of activation energy by 76.63 kJ mol-1. Char yield raised because volatile radicals were captured by FeCl3-derived amorphous Fe(III) species, then involved in char formation. Amorphous Fe(III) continuously converted into Fe3O4 crystallites with carbonization temperature increasing from 400 to 700 °C, then α-Fe was formed at 800 °C via the carbothermal reduction of Fe3O4. FeCl3 was favorable to the formation of a developed microporous structure. Surface area significantly increased with carbonization temperature increasing from 400 to 600 °C due to the removal of volatiles. The etching of carbon by Fe3O4 above 700 °C also led to the increase of surface area. PCMFe/600 exhibited higher optical absorption than other samples due to its high graphite degree and porosity. It also had excellent photothermal performance; thus, solar steam yield was 1.46 times that of the pure water with the assistance of PCMFe/600. PCMFe/600 in floating state was effective in adsorption of MB from water. Besides, the adsorption behavior fitted Langmuir model with a monolayer adsorption capacity reached up to 70.9 mg g-1.
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Affiliation(s)
- Yuhui Ma
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources of the People’s Republic of China, Tianjin, 300192 China
| | - Junrui Cao
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources of the People’s Republic of China, Tianjin, 300192 China
- Tianjin Haiyue Water Treatment High-tech Co., Ltd., Tianjin, 300192 China
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Huang S, Wang T, Chen K, Mei M, Liu J, Li J. Engineered biochar derived from food waste digestate for activation of peroxymonosulfate to remove organic pollutants. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 107:211-218. [PMID: 32305778 DOI: 10.1016/j.wasman.2020.04.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/06/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
The anaerobic digestion of food waste, can result in large amounts of solid waste digestate, often without methods of disposal. In this study, a biochar was prepared from food waste digestate (FWD) by pyrolysis, and its potential to activate peroxymonosulfate (PMS) for the removal of pollutants from a simulated textile wastewater was evaluated. The results showed that the addition of biochar (0.5 g/L) and PMS (1 mM) to wastewater could remove >99% of a representative azo dye pollutant (reactive brilliant red X-3B, 1 g/L) within 10 min. The efficiency of this removal process was attributed to the catalytic sites in the biochar (graphitic carbon and nitrogen, pyridinium nitrogen and CO structures) which could activate PMS to produce reactive oxygen species (1O2, O2-, OH and SO4-). The results obtained in this study confirmed the activation potential of the biochar derived from FWD on PMS, providing an alternative utilization strategy for anaerobic FWD.
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Affiliation(s)
- Simian Huang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Teng Wang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Kai Chen
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Meng Mei
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Jingxin Liu
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
| | - Jinping Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
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48
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Low-Cost Route for Preparing Carbon–Silica Composite Mesoporous Material from Coal Gasification Slag: Synthesis, Characterization and Application in Purifying Dye Wastewater. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04383-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Dai L, Li L, Zhu W, Ma H, Huang H, Lu Q, Yang M, Ran Y. Post-engineering of biochar via thermal air treatment for highly efficient promotion of uranium(VI) adsorption. BIORESOURCE TECHNOLOGY 2020; 298:122576. [PMID: 31851897 DOI: 10.1016/j.biortech.2019.122576] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 05/28/2023]
Abstract
Biochar from pyrolysis/gasification is relatively poor in oxygen-containing groups and low in micro/mesoporosity, which constrains its adsorption performance. Here, thermal air treatment (TAT) at a mild condition (300 °C in air) was applied to oxygenate the surfaces of various biochars and modify their pore structures for the promotion of their uranium (U(VI)) adsorptions. Results showed that TAT had a high product yield (>76%), increased the O contents, O/C ratios and O-containing groups in biochars, and substantially developed the micro/mesoporosities of biochars. Batch adsorption results showed that TAT remarkably improved U(VI) adsorption capacities of various biochars. Specifically, the maximum U(VI) adsorption capacities of ash-poor corn cob biochar and ash-rich sewage sludge biochar were increased by 137% to 163 mg/g and 23% to 97 mg/g, respectively. Thus, TAT might be a promising strategy to engineer various biochars for adsorptive applications.
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Affiliation(s)
- Lichun Dai
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China.
| | - Liang Li
- Beijing Research Institute of Chemical Engineering and Metallurgy, Beijing 101149, PR China
| | - Wenkun Zhu
- Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Hanqing Ma
- Karamay Aofeng Environmental Science & Technology Co., Ltd., Karamay 834099, PR China
| | - Huagang Huang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Qian Lu
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
| | - Mei Yang
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
| | - Yi Ran
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Risk Assessment Lab of the Quality Safety of Biomass Fermentation Products Chengdu Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
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50
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Zhang M, Wan Y, Wen Y, Li C, Kanwal A. A novel Poly(vinyl alcohol) / carboxymethyl cellulose / yeast double degradable hydrogel with yeast foaming and double degradable property. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 187:109765. [PMID: 31670239 DOI: 10.1016/j.ecoenv.2019.109765] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/24/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
A novel polyvinyl alcohol/carboxymethyl cellulose/yeast double degradable hydrogel was prepared with yeast as a foaming agent. The chemical structure of the hydrogel was characterized by FTIR and XPS. The micro-structure of the hydrogel was observed by SEM. The specific surface area and pore size of hydrogel were measured by BET. Methylene blue adsorption capacity of the hydrogels were investigated and the adsorption mechanism was explored. The biodegradability of double degradable hydrogel was investigated. The results showed that yeast was encapsulated in hydrogel by electrostatic action. With the addition of yeast, not only the specific surface area and average pore size of the hydrogel increased but also methylene blue maximum adsorption capacity of the double degradable hydrogel (110 ± 3.5 mg/g) was significantly higher than that of the hydrogel without yeast (57 ± 1.9 mg/g). The adsorption mechanism was dominated by chemical adsorption and was accompanied by biodegradable and electrostatic adsorption. The kinetic data were fitted to the pseudo-second-order kinetic model reasonably well. The introduction of yeast promoted the biodegradable of hydrogel and increased the degradation rate of polyvinyl alcohol in the material with a maximum degradation rate of 45 ± 2.8%.
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Affiliation(s)
- Min Zhang
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Yu Wan
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Yunxuan Wen
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, 100048, China.
| | - Chengtao Li
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Aqsa Kanwal
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
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