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Bordonhos M, Galvão TLP, Gomes JRB, Gouveia JD, Jorge M, Lourenço MAO, Pereira JM, Pérez‐Sánchez G, Pinto ML, Silva CM, Tedim J, Zêzere B. Multiscale Computational Approaches toward the Understanding of Materials. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202200628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marta Bordonhos
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
- CERENA, Department of Chemical Engineering Instituto Superior Técnico University of Lisbon Avenida Rovisco Pais, No. 1 Lisbon 1049‐001 Portugal
| | - Tiago L. P. Galvão
- CICECO ‐ Aveiro Institute of Materials Department of Materials and Ceramic Engineering University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José R. B. Gomes
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José D. Gouveia
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Miguel Jorge
- Department of Chemical and Process Engineering University of Strathclyde 75 Montrose Street Glasgow G1 1XJ UK
| | - Mirtha A. O. Lourenço
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José M. Pereira
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Germán Pérez‐Sánchez
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Moisés L. Pinto
- CERENA, Department of Chemical Engineering Instituto Superior Técnico University of Lisbon Avenida Rovisco Pais, No. 1 Lisbon 1049‐001 Portugal
| | - Carlos M. Silva
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - João Tedim
- CICECO ‐ Aveiro Institute of Materials Department of Materials and Ceramic Engineering University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Bruno Zêzere
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
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Ponce-Robles L, Mena E, Diaz S, Pagán-Muñoz A, Lara-Guillén AJ, Fellahi I, Alarcón JJ. Integrated full-scale solar CPC/UV-LED–filtration system as a tertiary treatment in a conventional WWTP for agricultural reuse purposes. Photochem Photobiol Sci 2022; 22:641-654. [PMID: 36401770 PMCID: PMC9676787 DOI: 10.1007/s43630-022-00342-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/08/2022] [Indexed: 11/21/2022]
Abstract
AbstractToday, the emergence of increasingly restrictive treatment and reuse policies make the implementation of full-scale tertiary treatment, capable of improving the quality of water, a priority. Full-scale TiO2 photocatalysis systems are resulting in a promising option, since TiO2 is commercially available. However, questions such as how to work continuously during day/night irradiation cycle, or the removing of TiO2 in outlet flow are still unresolved. In this work, a full-scale system integrating a solar CPC/UV-LED step combined with commercial microfiltration membranes was installed in a conventional WWTP for agricultural reuse purposes. After optimization, 0.5 g/L of catalyst and combined SOLAR + UV-LED showing the highest pharmaceutical removal percentages, while a self-designed UV-LED included in the own reaction tank resulting in higher efficiencies compared with commercial lamps. Longer membrane surface area decreased fouling problems in the system. However, 60 min of irradiation time was necessary to reach the most restrictive water quality values according with (EU 2020/741). After optimization step, total costs were reduced by 45%. However, it was shown that a reduction in operating and maintenance costs, along with the development of more effective and economical commercial filtration membranes is a key factor; therefore, working on these aspects is essential in the treated water cost reduction.
Graphical abstract
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Sousa É, Rocha L, Jaria G, Gil MV, Otero M, Esteves VI, Calisto V. Optimizing microwave-assisted production of waste-based activated carbons for the removal of antibiotics from water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:141662. [PMID: 32889260 DOI: 10.1016/j.scitotenv.2020.141662] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/20/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
This work aimed at the microwave-assisted production of activated carbon (AC) from primary paper mill sludge (PS) for the adsorption of antibiotics from water. Production conditions, namely pyrolysis temperature, pyrolysis time and activating agent (KOH):PS ratio, were optimized as a function of product yield, specific surface area (SBET), total organic carbon (TOC) content and adsorptive removal percentage of two target antibiotics (amoxicillin (AMX) and sulfamethoxazole (SMX)). Under the optimized conditions (pyrolysis at 800 °C during 20 min and a KOH:PS ratio of 1:5), a microporous AC (MW800-20-1:5, with SBET = 1196 m2 g-1, TOC = 56.2% and removal of AMX and SMX = 85% and 72%, respectively) was produced and selected for further kinetic and equilibrium adsorption studies. The obtained results were properly described by the Elovich reaction-based kinetic model and the Langmuir equilibrium isotherm, with maximum adsorption capacities of 204 ± 5 mg g-1 and 217 ± 8 mg g-1 for AMX and SMX, respectively. Considering the satisfactory comparison of these results with the performance of commercial and alternative AC produced by conventional pyrolysis, this work demonstrated the feasibility of the microwave-assisted production of environmentally and energetically sustainable waste-based AC to be applied in the efficient removal of antibiotics from water.
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Affiliation(s)
- Érika Sousa
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Luciana Rocha
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Guilaine Jaria
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Maria V Gil
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - Marta Otero
- Department of Environment and Planning and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Vânia Calisto
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
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Aoudjit F, Touahra F, Aoudjit L, Cherifi O, Halliche D. Efficient solar heterogeneous photocatalytic degradation of metronidazole using heterojunction semiconductors hybrid nanocomposite, layered double hydroxides. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:2837-2846. [PMID: 33341774 DOI: 10.2166/wst.2020.519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This study focuses on the synthesis of various nanocomposites with heterojunction structures, MgAl-LDH (LDH = layered double hydroxides) hybrid with semiconductor such as MoO3 and CuO. These solids were synthesized by co-precipitation method at constant pH and have been characterized extensively using atomic absorption spectroscopy (AAS), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and transmission electron microscopy-energy dispersive X-ray (TEM-EDX) methods. The catalytic activity of nanocomposites was tested in the photocatalytic degradation under solar irradiation of emerging pollutants as the pharmaceutical metronidazole (MNZ). The experimental parameters, including initial MNZ concentration, the nature of oxide incorporate in the photocatalyst, catalyst loading were explored. All the synthesized samples showed high photocatalytic performances; the highest photocatalysis efficiency was achieved with the photocatalyst dose 1.5 g/L and initial MNZ concentration of 10 mg/L at neutral pH. The photocatalytic experimental results were fitted very well to the Langmuir-Hinshelwood model. From the obtained results the calcined LDH/semiconductors could be efficient for the photocatalytic process under solar irradiation of pharmaceuticals and may contribute in environmental remediation.
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Affiliation(s)
- Farid Aoudjit
- Laboratory of Petrochemical Synthesis, Faculty of Hydrocarbons and Chemistry, University of M'Hamed Bougara, Boumerdes 35000, Algeria E-mail: ; Process Engineering Department, Universiy of Akli Mohand Oulhadj, Bouira, Algeria; Laboratory of Natural Gas Chemistry, Faculty of Chemistry, University of Sciences and Technology, Houari Boumediene, Algiers 16 111, Algeria
| | - Fouzia Touahra
- Laboratory of Natural Gas Chemistry, Faculty of Chemistry, University of Sciences and Technology, Houari Boumediene, Algiers 16 111, Algeria; Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP 384-Bou-Ismail-RP 42004, Tipaza, Algeria
| | - Lamine Aoudjit
- Laboratory of Natural Gas Chemistry, Faculty of Chemistry, University of Sciences and Technology, Houari Boumediene, Algiers 16 111, Algeria; Unité de Développement des équipements Solaires, UDES/Centre de Développement des Energies Renouvelables, CDER, Bou Ismail, 42415, W. Tipaza, Algeria
| | - Ouiza Cherifi
- Laboratory of Petrochemical Synthesis, Faculty of Hydrocarbons and Chemistry, University of M'Hamed Bougara, Boumerdes 35000, Algeria E-mail: ; Laboratory of Natural Gas Chemistry, Faculty of Chemistry, University of Sciences and Technology, Houari Boumediene, Algiers 16 111, Algeria
| | - Djamilla Halliche
- Laboratory of Natural Gas Chemistry, Faculty of Chemistry, University of Sciences and Technology, Houari Boumediene, Algiers 16 111, Algeria
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