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Sirajo L, Ahmad Zaini MA. Adsorption of water pollutants using H 3PO 4-activated lignocellulosic agricultural waste: a mini review. TOXIN REV 2022. [DOI: 10.1080/15569543.2022.2062775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lawal Sirajo
- Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific & Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, UTM Johor Bahru, Johor, 81310, Malaysia
- School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, Johor, 81310, Malaysia
- Department of Chemical Engineering, Kaduna Polytechnics, PMB, 2021, Nigeria
| | - Muhammad Abbas Ahmad Zaini
- Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific & Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, UTM Johor Bahru, Johor, 81310, Malaysia
- School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, Johor, 81310, Malaysia
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Demarco CF, Afonso TF, Schoeler GP, Barboza VDS, Rocha LDS, Pieniz S, Giongo JL, Vaucher RDA, Igansi AV, Cadaval TRS, Andreazza R. New low-cost biofilters for SARS-CoV-2 using Hymenachne grumosa as a precursor. JOURNAL OF CLEANER PRODUCTION 2022; 331:130000. [PMID: 34898862 PMCID: PMC8650601 DOI: 10.1016/j.jclepro.2021.130000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/28/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
The ongoing global spread of COVID-19 (SARS-CoV-2 2019 disease) is causing an unprecedented repercussion on human health and the economy. Despite the primary mode of transmission being through air droplets and contact, the transmission via wastewater is a critical concern. There is a lack of techniques able to provide complete disinfection, along with the uncertainty related to the behavior of SARS-CoV-2 in the natural environment and risks of contamination. This fact makes urgent the research towards new alternatives for virus removal from water and wastewater. Thus, this research aimed to characterize new lost-cost adsorbents for SARS-CoV-2 using Hymenachne grumosa as a precursor and verify its potential for removing SARS-CoV-2 from the solution. The aquatic macrophyte H. grumosa had in natura and activated carbon produced with H. grumosa and zinc chloride (ZnCl2,1:1) impregnation and carbonization (700 °C, 1 h) were incubated for 24 h with inactivated SARS-CoV-2 viral suspension, and then the ribonucleic acid (RNA) was extracted and viral load quantified through reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technique. The results demonstrated the great adsorption potential, achieving removal of 98.44% by H. grumosa "in natura", and 99.61% by H. grumosa with carbon activation, being similar to commercial activated carbon (99.67%). Thus, this study highlights the possibility of low-cost biofilters to be used for SARS-CoV-2 removal, as an excellent alternative for wastewater treatment or watercourses decontamination.
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Affiliation(s)
- Carolina Faccio Demarco
- Science and Engineering of Materials Postgraduate Program, Federal University of Pelotas, R. Gomes Carneiro 01, CEP 96010-610, Pelotas, RS, Brazil
| | - Thays França Afonso
- Science and Engineering of Materials Postgraduate Program, Federal University of Pelotas, R. Gomes Carneiro 01, CEP 96010-610, Pelotas, RS, Brazil
| | - Guilherme Pereira Schoeler
- Environmental Sciences Postgraduate Program, Federal University of Pelotas. R. Benjamin Constant 989, CEP 96010-020, Pelotas, RS, Brazil
| | - Victor Dos Santos Barboza
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Liziane Dos Santos Rocha
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Simone Pieniz
- Environmental Sciences Postgraduate Program, Federal University of Pelotas. R. Benjamin Constant 989, CEP 96010-020, Pelotas, RS, Brazil
| | - Janice Luehring Giongo
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Rodrigo de Almeida Vaucher
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Andrei Vallerão Igansi
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, S/n, Carreiros, CEP 96203-000, Rio Grande, RS, Brazil
| | - Tito Roberto Sant'Anna Cadaval
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, S/n, Carreiros, CEP 96203-000, Rio Grande, RS, Brazil
| | - Robson Andreazza
- Science and Engineering of Materials Postgraduate Program, Federal University of Pelotas, R. Gomes Carneiro 01, CEP 96010-610, Pelotas, RS, Brazil
- Environmental Sciences Postgraduate Program, Federal University of Pelotas. R. Benjamin Constant 989, CEP 96010-020, Pelotas, RS, Brazil
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Dalto F, Kuźniarska-Biernacka I, Pereira C, Mesquita E, Soares OSGP, Pereira MFR, Rosa MJ, Mestre AS, Carvalho AP, Freire C. Solar Light-Induced Methylene Blue Removal over TiO 2/AC Composites and Photocatalytic Regeneration. NANOMATERIALS 2021; 11:nano11113016. [PMID: 34835780 PMCID: PMC8625254 DOI: 10.3390/nano11113016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/28/2021] [Accepted: 11/05/2021] [Indexed: 11/22/2022]
Abstract
TiO2-containing photocatalysts, which combine TiO2 with carbon-based materials, are promising materials for wastewater treatment due to synergistic photodegradation and adsorption phenomena. In this work, TiO2/AC composites were produced by the in situ immobilization of TiO2 nanoparticles over activated carbon (AC) derived from spent coffee grains, using different TiO2/AC proportions. The TiO2/AC composites were tested as adsorbents (dark) and as photocatalysts in a combined adsorption+photocatalytic process (solar irradiation) for methylene blue (MB) removal from ultrapure water, and from a secondary effluent (SecEf) of an urban wastewater treatment plant. All the materials were characterized by XRD (X-ray powder diffraction), N2 adsorption–desorption isotherms at −196 °C, SEM (scanning electron microscopy), UV-Vis diffuse reflectance, FTIR (Fourier-transform infrared spectroscopy), TPD (temperature programmed desorption), XPS (X-ray photoelectron spectroscopy) and TGA (thermogravimetric analysis). The TiAC60 (60% C) composite presented the lowest band gap (1.84 eV), while, for TiAC29 (29% C), the value was close to that of bare TiO2 (3.18 vs. 3.17 eV). Regardless of the material, the solar irradiation improved the percentage of MB discolouration when compared to adsorption in dark conditions. In the case of simultaneous adsorption+photocatalytic assays performed in ultrapure water, TiAC29 presented the fastest MB removal. Nevertheless, both TiAC29 and TiAC60 led to excellent MB removal percentages (96.1–98.1%). UV-induced photoregeneration was a promising strategy to recover the adsorption capacity of the materials, especially for TiAC60 and AC (>95%). When the assays were performed in SecEf, all the materials promoted discolouration percentages close to those obtained in ultrapure water. The bulk water parameters revealed that TiAC60 allowed the removal of a higher amount of MB, associated with the overall improvement of the SecEf quality.
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Affiliation(s)
- Fernanda Dalto
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.D.); (I.K.-B.); (C.P.)
| | - Iwona Kuźniarska-Biernacka
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.D.); (I.K.-B.); (C.P.)
| | - Clara Pereira
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.D.); (I.K.-B.); (C.P.)
| | - Elsa Mesquita
- Water Quality and Treatment Laboratory, Urban Water Unit, Hydraulics and Environment Department, LNEC—National Laboratory for Civil Engineering, Av. Brasil 101, 1700-066 Lisboa, Portugal; (E.M.); (M.J.R.)
| | - Olívia Salomé G. P. Soares
- LSRE-LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; (O.S.G.P.S.); (M.F.R.P.)
| | - M. Fernando R. Pereira
- LSRE-LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; (O.S.G.P.S.); (M.F.R.P.)
| | - Maria João Rosa
- Water Quality and Treatment Laboratory, Urban Water Unit, Hydraulics and Environment Department, LNEC—National Laboratory for Civil Engineering, Av. Brasil 101, 1700-066 Lisboa, Portugal; (E.M.); (M.J.R.)
| | - Ana S. Mestre
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;
- Correspondence: (A.S.M.); (C.F.)
| | - Ana P. Carvalho
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;
| | - Cristina Freire
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.D.); (I.K.-B.); (C.P.)
- Correspondence: (A.S.M.); (C.F.)
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Li Y, Hagos FM, Chen R, Qian H, Mo C, Di J, Gai X, Yang R, Pan G, Shan S. Rice husk hydrochars from metal chloride-assisted hydrothermal carbonization as biosorbents of organics from aqueous solution. BIORESOUR BIOPROCESS 2021; 8:99. [PMID: 38650206 PMCID: PMC10991232 DOI: 10.1186/s40643-021-00451-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/29/2021] [Indexed: 11/10/2022] Open
Abstract
Hydrochar a carbon-rich material resulting from hydrothermal carbonization of biomass, has received substantial attention because of its potential application in various areas such as carbon sequestration, bioenergy production and environmental amelioration. A series of hydrochars were prepared by metal chloride-assisted hydrothermal carbonization of rice husk and characterized by elemental analysis, zeta potential, X-ray diffraction, Brunauer-Emmett-Teller measurements, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and scanning electron microscopy. The results reveal that the prepared hydrochars have carbon contents ranging from 45.01 to 58.71%, BET specific areas between 13.23 and 45.97 m2/g, and rich O-containing functional groups on the surfaces. The metal chlorides added in the feedwater could improve the degree of carbonization and show significant effects on the physical, chemical and adsorption properties of the hydrochars. The adsorption of the selected organics on the hydrochars is a spontaneous and physisorption-dominated process. The hydrochars possess larger adsorption capacities for 2-naphthol than for berberine hydrochloride and Congo red, and the modeling maximum adsorption capacities of 2-naphthol are in the range of 170.1-2680 mg/g. The adsorption equilibrium could be accomplished in 10, 40 and 30 min for 2-naphthol, berberine hydrochloride and Congo red, respectively. These results suggest metal chloride-assisted hydrothermal carbonization a promising method for converting biomass waste into effective adsorbents for wastewater treatment.
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Affiliation(s)
- Yin Li
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China.
| | - Fana Mulugeta Hagos
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Rongrong Chen
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Hanxin Qian
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Chengxing Mo
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Jing Di
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Xikun Gai
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China.
| | - Ruiqin Yang
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Genxing Pan
- Institute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Shengdao Shan
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
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Li X, Wang C, Tian J, Liu J, Chen G. Comparison of adsorption properties for cadmium removal from aqueous solution by Enteromorpha prolifera biochar modified with different chemical reagents. ENVIRONMENTAL RESEARCH 2020; 186:109502. [PMID: 32361077 DOI: 10.1016/j.envres.2020.109502] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/17/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Using biochar to remove heavy metals from water is environmentally beneficial. In this study, three kinds of chemical reagents, including ZnCl2, H3PO4 and KMnO4, were introduced to modify the biochar derived from Enteromorpha prolifera. The performance of these modified biochar in removing Cadmium ions (Cd(II)) from water was investigated. The physicochemical properties of activated biochars were characterized by N2-sorption, thermal gravity and differential thermal gravity (TG/DTG), scanning electron microscopy (SEM), elemental analysis and Fourier transform infrared spectroscopy (FTIR). The results showed that the removal rate of Cd(II) from water by EP biochar modified with H3PO4 was significantly increased, and the maximum adsorption capacity of Cd(II) reached to 423 mg/g for PBC. Moreover, the adsorption of Cd(II) from water by phosphoric acid modified biochar was very fast, and the saturation adsorption of Cd(II) was reached within 1 h. Compared with pseudo first-order model, pseudo secondary-order model was much more suitable for analyzing the adsorption kinetics data of Cd(II) onto KBC or ZBC. The adsorption of Cd(II) onto PBC was analyzed by the intra-particle diffusion kinetic model, where the value of R2 was high as 0.98. The Langmuir model was fit for phosphoric acid modified biochar.
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Affiliation(s)
- Xiangping Li
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China; Qingdao Institute for Ocean Technology of Tianjin University, Qingdao, 266235, PR China.
| | - Chuanbin Wang
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Jingnan Tian
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Juping Liu
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Guanyi Chen
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China; Qingdao Institute for Ocean Technology of Tianjin University, Qingdao, 266235, PR China; Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300354, PR China.
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Sakamoto T, Amano Y, Machida M. Phosphate ion adsorption properties of PAN-based activated carbon fibers prepared with K2CO3 activation. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2465-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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He J, Guo J, Zhou Q, Fang F. Adsorption characteristics of nitrite on natural filter medium: Kinetic, equilibrium, and site energy distribution studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:435-441. [PMID: 30469029 DOI: 10.1016/j.ecoenv.2018.11.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
Nitrite is one of the world's major contaminants in drinking water resources, and granular anthracite is often used as filter medium in water treatment. In this study, the adsorption characteristics of nitrite on granular anthracite under various temperatures were investigated through adsorption kinetic, isotherm models, and site energy distribution theory. The adsorption of nitrite on granular anthracite was an endothermic reaction, while intraparticle diffusion was not the only rate control step. The adsorption could be well described by using pseudo-second-order and Langmuir-Freundlich equations. The adsorption capacity was 402.51 mg NO2--N kg-1 at 298 K, which could be significantly improved to 1380.1 mg NO2--N kg-1 when the temperature reached 308 K. Furthermore, nitrite ions first occupied the high-energy adsorption sites and then diffused to the low-energy adsorption sites on granular anthracite. There were more sites, including high-energy sites and low-energy sites, for nitrite adsorption at 308 K. Besides, the thickness of the boundary layer increased with the adsorption capacity improved at a higher temperature, and nitrite ions were adsorbed mainly through chemical mechanisms. Moreover, the neutral pH was helpful for the adsorption. The presence of co-existing ions could limit the adsorption and the effect followed the order of PO43- > CO32- > SO42- > NO3- > Cl-. The saturated anthracite could be effectively regenerated by 0.2 mol L-1 HCl solution. Therefore, the granular anthracite used as filter medium also has a possible application as a nitrite scavenger at the same time.
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Affiliation(s)
- Jing He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China
| | - Jinsong Guo
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China.
| | - Qiuhong Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China
| | - Fang Fang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China
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Yagmur E, Inal IIG, Gokce Y, Ulusoy Ghobadi TG, Aktar T, Aktas Z. Examination of gas and solid products during the preparation of activated carbon using phosphoric acid. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 228:328-335. [PMID: 30241038 DOI: 10.1016/j.jenvman.2018.09.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 08/17/2018] [Accepted: 09/13/2018] [Indexed: 05/23/2023]
Abstract
Activating agents play significant roles in the preparation of activated carbon (AC) from biomasses and their wastes, which are widely used in AC production. Application methods are also important for the production process. Products give remarkable ideas regarding the method and heat treatment process. The activated carbon was produced from waste tea in accordance with either the conventional method or microwave energy pretreated method using phosphoric acid (H3PO4) as activating agent. The yields of the activated carbons were 51.8% for conventional method and 46.0% for microwave pretreated method. The acid suppressed the formation of tar and promoted the amount of solid and aromatic structure accordance to sp2 hybridisation. Additionally, the waste tea was directly carbonised (without H3PO4) and the yield was 36.3%. Major gas (H2, CH4, C2H6, C2H4, CO2 and CO) products obtained during heat treatment process in a conventional furnace were examined in terms of quantity and quality. The solid products were characterised in terms of surface area, pore size and surface properties. The result of gas analysis showed that phosphoric acid affected formation of activated carbon mechanism and significant reactions occurred during microwave pretreatment process.
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Affiliation(s)
- Emine Yagmur
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandogan, 06100, Ankara, Turkey
| | - I Isil Gurten Inal
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandogan, 06100, Ankara, Turkey
| | - Yavuz Gokce
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandogan, 06100, Ankara, Turkey
| | - T Gamze Ulusoy Ghobadi
- UNAM - National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, 06800, Ankara, Turkey
| | - Tugce Aktar
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandogan, 06100, Ankara, Turkey
| | - Zeki Aktas
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandogan, 06100, Ankara, Turkey.
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Pui WK, Yusoff R, Aroua MK. A review on activated carbon adsorption for volatile organic compounds (VOCs). REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0057] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A number of control methods have been adopted for the removal of hazardous volatile organic compounds (VOCs) from gas streams, particularly adsorption processes which are considered more prominent in terms of feasibility, effectiveness as well as cost competence compared to other methods. In this study, most of the activated-carbon-based adsorbents are critically reviewed in terms of their advantages and limitations for VOC gas adsorption. The choice of adsorbent and process parameters depends mainly on the type of VOC used, its chemical and structural properties, in addition to the adsorbent’s characteristics. The review discusses in detail the application of fixed-bed adsorption systems. A computational simulation study using quantum-chemical conductor like screening model for real solvents is included in this review which determines the efficiency in describing and predicting the adsorption technique required for each process. This review offers a comprehensive discussion of the VOC adsorption techniques and their implementation for different applications.
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Affiliation(s)
- Wee Kong Pui
- Department of Chemical Engineering, Faculty of Engineering , University of Malaya , Kuala Lumpur 50603 , Malaysia
| | - Rozita Yusoff
- Department of Chemical Engineering, Faculty of Engineering , University of Malaya , Kuala Lumpur 50603 , Malaysia
| | - Mohamed Kheireddine Aroua
- Centre for Carbon Dioxide Capture and Utilization (CCDCU) , School of Science and Technology, Sunway University , Bandar Sunway, Selangor , Malaysia
- Department of Engineering , Lancaster University , Lancaster LA1 4YW , UK
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Song W, Gao B, Xu X, Wang F, Xue N, Sun S, Song W, Jia R. Adsorption of nitrate from aqueous solution by magnetic amine-crosslinked biopolymer based corn stalk and its chemical regeneration property. JOURNAL OF HAZARDOUS MATERIALS 2016; 304:280-290. [PMID: 26561752 DOI: 10.1016/j.jhazmat.2015.10.073] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/28/2015] [Accepted: 10/31/2015] [Indexed: 06/05/2023]
Abstract
A novel adsorbent of magnetic amine-crosslinked biopolymer based corn stalk (MAB-CS) was synthesized and used for nitrate removal from aqueous solution. The characters and adsorption mechanisms of this bio-adsorbent were determined by using VSM, TGA, XRD, SEM, TEM, FT-IR and XPS, respectively. The results revealed that the saturated magnetization of MAB-CS reached 6.25 emu/g. Meanwhile, the studies of various factors indicated that this novel magnetic bio-adsorbent performed well over a considerable wide pH range of 6.0 ∼ 9.0, and the presence of PO4(3-) and SO4(2-) would markedly decrease the nitrate removal efficiency. Furthermore, the nitrate adsorption by MAB-CS perfectly fitted the Langmuir isotherm model (R(2)=0.997-0.999) and pseudo second order kinetic model (R(2)=0.953-0.995). The calculated nitrate adsorption capacity of MAB-CS was 102.04 mg/g at 318 K by Langmuir model, and thermodynamic study showed that nitrate adsorption is an spontaneous endothermic process. The regeneration experiments indicated its merit of regeneration and stability with the recovery efficient of 118 ∼ 147%. By integrating the experimental results, it was found that the removal of nitrate was mainly via electrostatic attraction and ion exchange. And this novel bio-adsorbent prepared in this work could achieve effective removal of nitrate and rapid separation from effluents simultaneously.
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Affiliation(s)
- Wen Song
- Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Baoyu Gao
- Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
| | - Xing Xu
- Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Fang Wang
- Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Nan Xue
- Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Shenglei Sun
- Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Wuchang Song
- Jinan Water and Wastewater Monitoring Center, 250033 Jinan, PR China
| | - Ruibao Jia
- Jinan Water and Wastewater Monitoring Center, 250033 Jinan, PR China
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