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Duarte EDV, Ribeiro NFDP, da Silva MGC, Vieira MGA, de Carvalho SML. Pirarucu hydroxyapatite applied to ternary competitive adsorption of synthetic basic dyes as contaminants of emerging concern: kinetic, equilibrium, and ANN studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:26942-26960. [PMID: 38503954 DOI: 10.1007/s11356-024-32968-w] [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: 10/26/2023] [Accepted: 03/14/2024] [Indexed: 03/21/2024]
Abstract
This study investigated the single and multicomponent adsorption of three emerging pollutants, the basic dyes Rhodamine 6G (R6G), Auramine-O (AO), and Brilliant Green (BG) by using hydroxyapatite synthesized from Pirarucu scales as adsorbent (HAP). The adsorption process was studied using seven different systems: AO-single, R6G-single, BG-single, R6G + AO, BG + AO, BG + R6G, and R6G + AO + BG. For kinetics, the initial concentration of each adsorbate per system was 50 mg/L, the results showed that the singular adsorption of these dyes was best-represented by the pseudo-second-order model (qAO = 62.54 mg/g, qR6G = 7.91 mg/g, qBG = 62.40 mg/g), however, the multicomponent adsorption was well-fitted by a pseudo-first-order model (ternary system: qAO = 56.21 mg/g, qR6G = 14.95 mg/g, qBG = 60.62 mg/g). For equilibrium, the initial concentration of each adsorbate per system was 10-300 mg/L, and the single adsorption systems were best represented by the Langmuir model. Nonetheless, the results displayed in the multicomponent mixture showed the presence of inflection points of AO and R6G whenever BG was present in solution with C0 > 150 mg/L, thus indicating that BG has greater affinity with HAP. The presence of inflection points in the curves represented a limitation for applying traditional equilibrium models, thus, an artificial neural network (ANN) was applied to non-linear curve fit this process and satisfactorily predicted the kinetics and equilibrium data. Finally, the analysis of thermodynamics for the ternary mixture revealed that the adsorption process is spontaneous (ΔG < 0), endothermic (ΔH > 0), and increases to a disorganized state as the temperature rises (ΔS > 0).
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Formation of chlorate and perchlorate during electrochemical oxidation by Magnéli phase Ti 4O 7 anode: inhibitory effects of coexisting constituents. Sci Rep 2022; 12:15880. [PMID: 36151096 PMCID: PMC9508142 DOI: 10.1038/s41598-022-19310-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Formation of chlorate (ClO3−) and perchlorate (ClO4−) as by-products in electrooxidation process has raised concern. In the present study, the formation of ClO3− and ClO4− in the presence of 1.0 mM Cl− on boron doped diamond (BDD) and Magneli phase titanium suboxide (Ti4O7) anodes were evaluated. The Cl− was transformed to ClO3− (temporal maximum 276.2 μM) in the first 0.5 h on BDD anodes with a constant current density of 10 mA cm2, while approximately 1000 μM ClO4− was formed after 4.0 h. The formation of ClO3− on the Ti4O7 anode was slower, reaching a temporary maximum of approximately 350.6 μM in 4.0 h, and the formation of ClO4− was also slower on the Ti4O7 anode, taking 8.0 h to reach 780.0 μM. Compared with the BDD anode, the rate of ClO3− and ClO4− formation on the Ti4O7 anode were always slower, regardless of the supporting electrolytes used in the experiments, including Na2SO4, NaNO3, Na2B4O7, and Na2HPO4. It is interesting that the formation of ClO4− during electrooxidation was largely mitigated or even eliminated, when methanol, KI, and H2O2 were included in the reaction solutions. The mechanism of the inhibition on Cl− transformation by electrooxidation was explored.
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A Review of Hybrid Process Development Based on Electrochemical and Advanced Oxidation Processes for the Treatment of Industrial Wastewater. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1155/2022/1105376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Nowadays, increased human activity, industrialization, and urbanization result in the production of enormous quantities of wastewater. Generally, physicochemical and biological methods are employed to treat industrial effluent and wastewater and have demonstrated high efficacy in removing pollutants. However, some industrial effluent and wastewater contain contaminants that are extremely difficult to remove using standard physicochemical and biological processes. Previously, electrochemical and hybrid advanced oxidation processes (AOP) were considered a viable and promising alternative for achieving an adequate effluent treatment strategy in such instances. These processes rely on the production of hydroxyl radicals, which are highly reactive oxidants that efficiently break down contaminants found in wastewater and industrial effluent. This review focuses on the removal of contaminants from industrial effluents and wastewater through the integration of electrochemical and advanced oxidation techniques. These processes include electrooxidation, electrocoagulation/electroflocculation, electroflotation, photo-Fenton, ozone-photo-Fenton, sono-photo-Fenton, photo-electro-Fenton, ozone/electrocoagulation, sono-electrocoagulation, and peroxi/photo/electrocoagulation. The data acquired from over 150 published articles, most of which were laboratory experiments, demonstrated that the hybrid process is more effective in removing contaminants from industrial effluent and wastewater than standalone processes.
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Bondarde MP, Bhakare MA, Dhumal PS, Lokhande KD, Some S. Synthesis of biowaste derived ultra-light spongy material for the studies of effective removal of oil, organic solvent and selective dye pollutant from waste stream. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Performance of Ti/RuO2-IrO2 Electrodes and Comparison with BDD Electrodes in the Treatment of Textile Wastewater by Electro-Oxidation Process. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Sun W, Liu D, Zhang M. Application of electrode materials and catalysts in electrocatalytic treatment of dye wastewater. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-021-2108-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Removal of Synthetic Dye by Chlorella vulgaris Microalgae as Natural Adsorbent. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04557-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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8
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Pethsangave DA, Khose RV, Wadekar PH, Kulal DK, Some S. One‐Pot Synthetic Approach for Magnetically Separable Graphene Nanocomposite for Dye Degradation. ChemistrySelect 2020. [DOI: 10.1002/slct.201903966] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Rahul V. Khose
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai 400 019 India
| | - Pravin H. Wadekar
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai 400 019 India
| | - Dnyaneshwar K. Kulal
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai 400 019 India
| | - Surajit Some
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai 400 019 India
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Zou R, Angelidaki I, Jin B, Zhang Y. Feasibility and applicability of the scaling-up of bio-electro-Fenton system for textile wastewater treatment. ENVIRONMENT INTERNATIONAL 2020; 134:105352. [PMID: 31778935 DOI: 10.1016/j.envint.2019.105352] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 06/10/2023]
Abstract
Textile wastewater entering natural water bodies could cause serious environment and health issues. Bio-electro-Fenton (BEF) as an efficient and energy saving wastewater treatment technology has recently attracted widespread attention. So far, there is no research available on the scaling-up of BEF process. In this work, an innovative 20 L up-scaled BEF system was constructed for the treatment of methylene blue (MB) containing wastewater. The system was first tested in batch mode. The results showed that the system performance was majorly related to the operating parameters including initial MB concentration, catholyte pH and concentration, cathodic aeration rate, Fe2+ dosage, and applied voltage. At the optimal condition, 20 mg L-1 of MB was efficiently removed following the apparent first order kinetics. The corresponding rate constants for the decolorization and mineralization were 0.68 and 0.20 h-1, respectively. Furthermore, MB decolorization efficiency of 99% and mineralization efficiency of 74% were observed when the hydraulic retention time was 28 h in continuous mode. This work demonstrates the scaling-up potential of BEF for recalcitrant wastewater treatment.
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Affiliation(s)
- Rusen Zou
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Irini Angelidaki
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Biao Jin
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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Nabizadeh Chianeh F, Avestan MS. Application of central composite design for electrochemical oxidation of reactive dye on Ti/MWCNT electrode. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01834-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Abdel-Aziz MH, Bassyouni M, Zoromba MS, Alshehri AA. Removal of Dyes from Waste Solutions by Anodic Oxidation on an Array of Horizontal Graphite Rods Anodes. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b05291] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mohamed Helmy Abdel-Aziz
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - Mohamed Bassyouni
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, Port Said University, Port-Said, Egypt
| | - Mohamed Shafick Zoromba
- Chemical and Materials Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
- Chemistry Department, Faculty of Science, Port Said University, 42521 Port-Said, Egypt
| | - Abdullah Ali Alshehri
- Electrical Engineering Department, King Abdulaziz University, Rabigh 21911, Saudi Arabia
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Díez AM, Ribeiro AS, Sanromán MA, Pazos M. Optimization of photo-Fenton process for the treatment of prednisolone. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27768-27782. [PMID: 29600382 DOI: 10.1007/s11356-018-1782-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 03/14/2018] [Indexed: 06/08/2023]
Abstract
Prednisolone is a widely prescribed synthetic glucocorticoid and stated to be toxic to a number of non-target aquatic organisms. Its extensive consumption generates environmental concern due to its detection in wastewater samples at concentrations ranged from ng/L to μg/L that requests the application of suitable degradation processes. Regarding the actual treatment options, advanced oxidation processes (AOPs) are presented as a viable alternative. In this work, the comparison in terms of pollutant removal and energetic efficiencies, between different AOPs such as Fenton (F), photo-Fenton (UV/F), photolysis (UV), and hydrogen peroxide/photolysis (UV/H2O2), was carried out. Light diode emission (LED) was the selected source to provide the UV radiation. The UV/F process revealed the best performance, reaching high levels of both degradation and mineralization with low energy consumption. Its optimization was conducted and the operational parameters were iron and H2O2 concentrations and the working volume. Using the response surface methodology with the Box-Behnken design, the effect of independent variables and their interactions on the process response were effectively evaluated. Different responses were analyzed taking into account the prednisolone removal (TOC and drug abatements) and the energy consumptions associated. The obtained model showed an improvement of the UV/F process when treating smaller volumes and when adding high concentrations of H2O2 and Fe2+. The validation of this model was successfully carried out, having only 5% of discrepancy between the model and the experimental results. Finally, the performance of the process when having a real wastewater matrix was also tested, achieving complete mineralization and detoxification after 8 h. In addition, prednisolone degradation products were identified. Finally, the obtained low energy permitted to confirm the viability of the process.
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Affiliation(s)
- Aida María Díez
- Department of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As Lagoas, Marcosende, 36310, Vigo, Spain
| | - Ana Sofia Ribeiro
- Department of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As Lagoas, Marcosende, 36310, Vigo, Spain
- Instituto Superior de Engenharia do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072, Porto, Portugal
| | - Maria Angeles Sanromán
- Department of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As Lagoas, Marcosende, 36310, Vigo, Spain
| | - Marta Pazos
- Department of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As Lagoas, Marcosende, 36310, Vigo, Spain.
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Martín-Yerga D, Pérez-Junquera A, González-García MB, Hernández-Santos D, Fanjul-Bolado P. In Situ Spectroelectrochemical Monitoring of Dye Bleaching after Electrogeneration of Chlorine-Based Species: Application to Chloride Detection. Anal Chem 2018; 90:7442-7449. [DOI: 10.1021/acs.analchem.8b00942] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel Martín-Yerga
- DropSens, Sociedad Limitada, Edificio CEEI, Parque Tecnológico de Asturias, 33428 Llanera, Asturias, Spain
| | - Alejandro Pérez-Junquera
- DropSens, Sociedad Limitada, Edificio CEEI, Parque Tecnológico de Asturias, 33428 Llanera, Asturias, Spain
| | | | - David Hernández-Santos
- DropSens, Sociedad Limitada, Edificio CEEI, Parque Tecnológico de Asturias, 33428 Llanera, Asturias, Spain
| | - Pablo Fanjul-Bolado
- DropSens, Sociedad Limitada, Edificio CEEI, Parque Tecnológico de Asturias, 33428 Llanera, Asturias, Spain
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Ragona L, Gasymov O, Guliyeva AJ, Aslanov RB, Zanzoni S, Botta C, Molinari H. Rhodamine binds to silk fibroin and inhibits its self-aggregation. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:661-667. [DOI: 10.1016/j.bbapap.2018.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/16/2018] [Accepted: 03/22/2018] [Indexed: 01/19/2023]
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15
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Cotillas S, Llanos J, Cañizares P, Clematis D, Cerisola G, Rodrigo MA, Panizza M. Removal of Procion Red MX-5B dye from wastewater by conductive-diamond electrochemical oxidation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.052] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Zamora-Garcia IR, Alatorre-Ordaz A, Ibanez JG, Torres-Elguera JC, Wrobel K, Gutierrez-Granados S. Efficient degradation of selected polluting dyes using the tetrahydroxoargentate ion, Ag(OH) 4-, in alkaline media. CHEMOSPHERE 2018; 191:400-407. [PMID: 29054080 DOI: 10.1016/j.chemosphere.2017.10.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 10/02/2017] [Accepted: 10/07/2017] [Indexed: 06/07/2023]
Abstract
The use of soluble and highly oxidizing Ag(III) in the form of the tetrahydroxoargentate ion Ag(OH)4- is reported for the oxidation of surrogate organic recalcitrant dyes (i.e., rhodamine 6G (Rh6G) and fluorescein (Fl)). The possible use of Ag(OH)4- for the treatment of these and other refractory compounds is assessed. Such dyes were selected due to their common occurrence, stability, refractory nature, the relatively high toxicity of Rh6G, and their structural similarity to Fl. Several reaction intermediates/products were identified. The results showed that the highly oxidizing tetrahydroxoargentate anion was capable of degrading these recalcitrant dyes. Furthermore, the final degradation products do not represent a higher environmental risk than the original surrogates themselves. In addition, the partial mineralization of the dyes was proven.
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Affiliation(s)
- Ileana R Zamora-Garcia
- Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico
| | - Alejandro Alatorre-Ordaz
- Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico.
| | - Jorge G Ibanez
- Depto. de Ing. y Ciencias Quimicas, Centro Mexicano de Quimica Verde y Microescala, Universidad Iberoamericana-Ciudad de Mexico, Prol. Reforma 880, 01219, Mexico City, Mexico
| | - Julio C Torres-Elguera
- Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico
| | - Kazimierz Wrobel
- Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico
| | - Silvia Gutierrez-Granados
- Departamento de Quimica, Unidad Pueblito de Rocha, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada s/n, Col. Pueblito de Rocha, CP 36040, Guanajuato, Mexico
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Markou V, Kontogianni MC, Frontistis Z, Tekerlekopoulou AG, Katsaounis A, Vayenas D. Electrochemical treatment of biologically pre-treated dairy wastewater using dimensionally stable anodes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 202:217-224. [PMID: 28735206 DOI: 10.1016/j.jenvman.2017.07.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/21/2017] [Accepted: 07/17/2017] [Indexed: 05/24/2023]
Abstract
In this work, electrochemical oxidation of aerobically pre-treated dairy wastewaters using IrO2-Pt coated dimensionally stable anodes was investigated. It was found that IrO2/Ti electrode outperforming Pt/Ti and IrO2-Pt/Ti at lower current densities, while Pt/Ti achieved better efficiency at higher current density. Among the different parameters which were studied, the current density was the most crucial for the efficiency of the process. A current density of 100 mA/cm2 led to almost complete removal of 3700 mg/L COD after 360 min of treatment using IrO2/Ti electrode and 0.2 M of sodium chloride while complete decolorization was achieved in less than 60 min. Electrolytes also found to significantly affect the process. More specific, the use of sodium chloride instead of sodium sulfate enhanced both COD and color removal due to the formation of active chlorine species. The effect of temperature was relative low; the process was favourable at elevated temperatures while increasing COD loading resulted in a decrease of COD and color removal.
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Affiliation(s)
- Vlasia Markou
- Department of Chemical Engineering, University of Patras, Caratheodory 1, GR-26504 Patras, Greece
| | | | - Zacharias Frontistis
- Department of Chemical Engineering, University of Patras, Caratheodory 1, GR-26504 Patras, Greece.
| | | | - Alexandros Katsaounis
- Department of Chemical Engineering, University of Patras, Caratheodory 1, GR-26504 Patras, Greece
| | - Dimitris Vayenas
- Department of Chemical Engineering, University of Patras, Caratheodory 1, GR-26504 Patras, Greece; Institute of Chemical Engineering Sciences, Foundation for Research and Technology, PO Box 1414, GR-26504 Patras, Greece
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Hu C, Hu B, Wang Y, Zhang Q, Zhou X. TiO2 nanotube arrays based DSA electrode and application in treating dye wastewater. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193516050062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu Y, Liu H, Zhou Z, Wang T, Ong CN, Vecitis CD. Degradation of the Common Aqueous Antibiotic Tetracycline using a Carbon Nanotube Electrochemical Filter. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:7974-7980. [PMID: 26056728 DOI: 10.1021/acs.est.5b00870] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work, a carbon nanotube (CNT) electrochemical filter was investigated for treatment of aqueous antibiotics using tetracycline (TC) as a model compound. Electrochemical filtration of 0.2 mM TC at a total cell potential of 2.5 V and a flow rate of 1.5 mL min(-1) (hydraulic residence time <2 s) resulted in an oxidative flux of 0.025 ± 0.001 mol h(-1) m(-2). Replacement of the perforated Ti cathode with a CNT cathode increased the TC oxidative flux by 2.3-fold to 0.020 ± 0.001 mol h(-1) m(-2) at a total cell potential of 1.0 V. Effluent analysis by liquid chromatography-mass spectrometry and disk agar biocidal diffusion tests indicate that the electrochemical filtration process can degrade the TC molecular structure and significantly decrease its antimicrobial activity, respectively. Addition of dissolved natural organic matter (NOM) negatively affected the TC electrooxidation because of competition for CNT sorption and electrooxidation sites. At 2.0 V total cell potential, TC spiked (0.2 mM) into drinking water reservoir and wastewater treatment plant effluent samples had an oxidative flux of 0.015 ± 0.001 and 0.022 ± 0.001 mol h(-1) m(-2), respectively, and an energy requirement of 0.7 kWh kgCOD(-1) or 0.084 kWh m(-3). These results indicate a CNT electrochemical filter may have potential to effectively and efficiently treat antibiotics in water and wastewater effluent.
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Affiliation(s)
- Yanbiao Liu
- †School of Engineering and Applied Sciences, Harvard University, Pierce Hall 120, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
- ‡NUS Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, #02-01, Singapore 117411
| | - Han Liu
- †School of Engineering and Applied Sciences, Harvard University, Pierce Hall 120, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Zhi Zhou
- §Division of Environmental and Ecological Engineering and School of Civil Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- ∥Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, E1A-07-03, Singapore 117576
| | - Tianren Wang
- ∥Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, E1A-07-03, Singapore 117576
| | - Choon Nam Ong
- ‡NUS Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, #02-01, Singapore 117411
| | - Chad D Vecitis
- †School of Engineering and Applied Sciences, Harvard University, Pierce Hall 120, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
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Petrović MM, Slipper IJ, Antonijević MD, Nikolić GS, Mitrović JZ, Bojić DV, Bojić AL. Characterization of a Bi2O3 coat based anode prepared by galvanostatic electrodeposition and its use for the electrochemical degradation of Reactive Orange 4. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2014.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Tan L, Zhang X, Liu Q, Wang J, Sun Y, Jing X, Liu J, Song D, Liu L. Preparation of magnetic core–shell iron oxide@silica@nickel-ethylene glycol microspheres for highly efficient sorption of uranium(vi). Dalton Trans 2015; 44:6909-17. [DOI: 10.1039/c4dt04040f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We report a facile approach for the formation of magnetic core–shell iron oxide@silica@nickel-ethylene glycol (Fe3O4@SiO2@Ni-L) microspheres.
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Affiliation(s)
- Lichao Tan
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Xiaofei Zhang
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Qi Liu
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Jun Wang
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Yanbo Sun
- State Key Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Xiaoyan Jing
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Jingyuan Liu
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Dalei Song
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- Harbin 150001
- China
| | - Lianhe Liu
- Institute of Advanced Marine Materials
- Harbin Engineering University
- China
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22
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Abstract
AbstractThe toxic and non-biodegradable nature of organic dyes necessitates the design and synthesis of novel adsorbents for their effective removal from the environment. This study reports an effective remediation behavior of surface-functionalized silica gel against water-soluble cationic dyes (up to 98 % removal). Thiol groups were functionalized at the surface of silica gel (SiO2–SH). The surface-tethered –SH groups were further oxidized to sulfonic acid groups to generate the negatively charged moieties at the surface of silica gel (SiO2–SO3 H). The morphology of the developed adsorbents and the surface modifications were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Uptake study of three cationic dyes, namely, rhodamine B (Rh B), rhodamine 6G (Rh 6G), and crystal violet (CV) with SiO2–SH and SiO2–SO3 H adsorbents was performed by varying the adsorbent amount, contact time, pH of solution, and temperature. The presence of negatively charged species at the surface of SiO2–SO3 H results in an increased electrostatic interaction with the cationic dyes, which leads to better remediation characteristics for SiO2–SO3 H as compared to SiO2–SH. The reusability of the developed adsorbents was also assessed by investigating adsorption/desorption of dyes. The simple fabrication process provides a facile avenue to the adsorbents with efficient remediation towards cationic dyes.
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23
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Petrović MM, Mitrović JZ, Radović MD, Kostić MM, Bojić ALJ. Preparation and characterisation of a new stainless steel/Bi2O3anode and its dyes degradation ability. CAN J CHEM ENG 2013. [DOI: 10.1002/cjce.21953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Milica M. Petrović
- Department of Chemistry; Faculty of Science and Mathematics; University of Niš; Niš; Višegradska 33 18000 Serbia
| | - Jelena Z. Mitrović
- Department of Chemistry; Faculty of Science and Mathematics; University of Niš; Niš; Višegradska 33 18000 Serbia
| | - Miljana D. Radović
- Department of Chemistry; Faculty of Science and Mathematics; University of Niš; Niš; Višegradska 33 18000 Serbia
| | - Miloš M. Kostić
- Department of Chemistry; Faculty of Science and Mathematics; University of Niš; Niš; Višegradska 33 18000 Serbia
| | - Aleksandar L. J. Bojić
- Department of Chemistry; Faculty of Science and Mathematics; University of Niš; Niš; Višegradska 33 18000 Serbia
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24
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Zheng YM, Yunus RF, Nanayakkara KN, Chen JP. Electrochemical Decoloration of Synthetic Wastewater Containing Rhodamine 6G: Behaviors and Mechanism. Ind Eng Chem Res 2012. [DOI: 10.1021/ie2019273] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yu-Ming Zheng
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
| | - Rita Farida Yunus
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
| | - K.G. Nadeeshani Nanayakkara
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
| | - J. Paul Chen
- Department of Civil
and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore 119260
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25
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Pradhan GK, Martha S, Parida KM. Synthesis of multifunctional nanostructured zinc-iron mixed oxide photocatalyst by a simple solution-combustion technique. ACS APPLIED MATERIALS & INTERFACES 2012; 4:707-13. [PMID: 22201304 DOI: 10.1021/am201326b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A series of nanostructure zinc-iron mixed oxide photocatalysts have been fabricated by solution-combustion method using urea as the fuel, and nitrate salts of both iron and zinc as the metal source. Different characterization tools, such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance UV-visible spectra (DRUV-vis), electron microscopy, and photoelectrochemical measurement were employed to establish the structural, electronic, and optical properties of the material. Electron microscopy confirmed the nanostructure of the photocatalyst. The synthesized photocatalysts were examined towards photodegradation of 4-chloro-2-nitro phenol (CNP), rhodamine 6G (R6G), and photocatalytic hydrogen production under visible light (λ ≥ 400 nm). The photocatalyst having zinc to iron ratio of 50:50 showed best photocatalytic activity among all the synthesized photocatalysts.
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Affiliation(s)
- Gajendra Kumar Pradhan
- Colloids and Materials Chemistry Department, Institute of Minerals & Materials Technology, CSIR, Bhubaneswar 751013, Odisha, India
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26
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Li M, Zhao G, Li P, Zhang Y, Wu M. Photoelectrocatalytic properties of a vertically aligned Ti-W alloy oxide nanotubes array and its applications in dye wastewater degradation. ENVIRONMENTAL TECHNOLOGY 2012; 33:191-199. [PMID: 22519103 DOI: 10.1080/09593330.2011.556150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A highly ordered and vertically oriented array of nanotubes (NTs) of mixed oxide was prepared in situ by Ti-W alloy anodization. Compared with the traditional TiO2 NTs, the photoelectrocatalytic activity of the resulting Ti-W-O NTs was greatly enhanced. Results indicated a narrowing of the band gap from 3.2 eV for pristine TiO2 to 2.7 eV for Ti-W-O NTs. Under irradiation with 254 and 365 nm UV lights, Ti-W-O NTs showed much higher photoelectroconversion efficiency (eta) than TiO2 NTs and TiO2-WO3 coating. The eta254 and eta365 on Ti-W-O NTs reached as high as 51.8% and 57.0% respectively, four to five times those on TiO2 NTs and TiO2-WO3 coating. As a result of its narrow band gap energy and fast electron-hole separation, Ti-W-O NTs presented outstanding photoelectrocatalytic features. The electrochemically assisted photocatalytic degradation of highly concentrated Rhodamine 6G wastewaters was studied. The results showed that the rates of colour and TOC removal were much higher on Ti-W-O NTs than on TiO2 NTs and TiO2-WO3 coating. The photocatalytic material obtained by alloy anodization is of significance in the advanced oxidation of environmental pollutants.
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Affiliation(s)
- Mingfang Li
- Department of Chemistry, Tongji University, 1239 Siping Road, 200092 Shanghai, China
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27
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Zhuo Q, Deng S, Yang B, Huang J, Yu G. Efficient electrochemical oxidation of perfluorooctanoate using a Ti/SnO2-Sb-Bi anode. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:2973-2979. [PMID: 21361321 DOI: 10.1021/es1024542] [Citation(s) in RCA: 186] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The electrochemical decomposition of persistent perfluorooctanoate (PFOA) with a Ti/SnO2-Sb-Bi electrode was demonstrated in this study. After 2 h electrolysis, over 99% of PFOA (25 mL of 50 mg·L(-1)) was degraded with a first-order kinetic constant of 1.93 h(-1). The intermediate products including short-chain perfluorocarboxyl anions (CF3COO-, C2F5COO-, C3F7COO-, C4F9COO-, C5F11COO-, and C6F13COO-) and F- were detected in the aqueous solution. The electrochemical oxidation mechanism was revealed, that PFOA decomposition first occurred through a direct one electron transfer from the carboxyl group in PFOA to the anode at the potential of 3.37 V (vs saturated calomel electrode, SCE). After that, the PFOA radical was decarboxylated to form perfluoroheptyl radical which allowed a defluorination reaction between perfluoroheptyl radical and hydroxyl radical/O2. Electrospray ionization (ESI) mass spectrum further confirmed that the oxidation of PFOA on the Ti/SnO2-Sb-Bi electrode proceeded from the carboxyl group in PFOA rather than C-C cleavage, and the decomposition processes followed the CF2 unzipping cycle. The electrochemical technique with the Ti/SnO2-Sb-Bi electrode provided a potential method for PFOA degradation in the aqueous solution.
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Affiliation(s)
- Qiongfang Zhuo
- POPs Research Centre, School of Environment, Tsinghua University, Beijing 100084, China
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