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Safdar A, Munir R, Zil-E-Hasnain, Noreen S. Batch and column studies for the removal of basic red-46 dye and textile by using magnesium oxide (MgO), strontium titanium trioxide (SrTiO 3), cobalt- and iron-doped lanthanum chromium trioxide (Co.Fe.LaCrO 3), and cadmium sulfide (CdS)-doped graphene oxide nanocomposites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34815-4. [PMID: 39331299 DOI: 10.1007/s11356-024-34815-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 08/22/2024] [Indexed: 09/28/2024]
Abstract
Despite efforts to reduce the risk of toxic chemicals, colors, and dyes being released into the environment from urban and industrial areas, there is still cause for concern. Colored water must be filtered and sterilized before it can be used for irrigation. The utilization of metal oxide and nanocomposite materials in wastewater treatment procedures appears to be a viable option for the future. Therefore, different compounds were doped with graphene oxide to identify the best material for dye removal by the adsorption process. According to recent studies, the ideal conditions for graphene oxide-doped magnesium oxide (GO/MgO) are as follows: pH 10 showed the highest adsorption capacity (qe) at 49.4 mg/g; an adsorbent dosage of 0.01 g/50 mL showed 48.3 mg/g qe; a shaking time of 30 min resulted in 44.2 mg/g qe; an initial dye concentration of 100 mg/L yielded 53.6 mg/g qe; and a temperature of 35 °C gave 49.5 mg/g qe. For graphene oxide-doped strontium titanate (GO/SrTiO3), the optimum conditions were as follows: pH 10 with 45.8 mg/g qe; an adsorbent dose of 0.01 g/50 mL with 40.5 mg/g qe; a shaking time of 30 min with 75 mg/g qe; and a temperature of 35 °C with 44.7 mg/g qe. Graphene oxide-doped cobalt and iron-doped lanthanum chromium titanate (GO/Co.Fe.LaCrO3) showed optimum conditions of pH 9 with 34.2 mg/g qe; an adsorbent dose of 0.01 g/50 mL with 27.5 mg/g qe; a shaking time of 45 min with 33.2 mg/g qe; an initial dye concentration of 100 mg/L with 37.6 mg/g qe; and a temperature of 35 °C with 42.5 mg/g qe. Graphene oxide-doped cadmium sulfide (GO/CdS) showed the following optimum conditions: pH 8 with 23.1 mg/g qe; an adsorbent dose of 0.01 g/50 mL with 25.5 mg/g qe; an initial dye concentration of 75 mg/L with 28.3 mg/g qe; and a temperature of 35 °C with 33.5 mg/g qe. The pseudo-first-order model was the best fit only for graphene oxide-doped magnesium oxide (GO/MgO) with an R2 value of 0.966, while the pseudo-second-order adsorption isotherm was the best fit for all four products, with R2 values ranging from 0.991 to 0.998. Additionally, the Langmuir adsorption isotherms provided good results for all four products, with R2 values ranging from 0.957 to 0.985. The Freundlich adsorption kinetics showed satisfactory fit only for graphene oxide-doped magnesium oxide (GO/MgO) and graphene oxide-doped cadmium sulfide (GO/CdS), with R2 values of 0.951 and 0.982, respectively. To examine the characteristics and practicality of the adsorption process, certain thermodynamic variables were calculated. The adsorption capability of the most efficient nanocomposites for the degradation of basic red-46 was significantly affected by various concentrations of heavy metal ions and electrolytes. In dye solutions containing surfactants/detergents, the adsorption efficiency of several effective photocatalysts for basic dyes was significantly reduced. A 0.5 M HCl solution was found to be the most effective for desorption. In column investigations, the optimal bed height, flow velocity, and dye intake levels were determined to be 3 cm, 1.8 mL/min, and 70 mg/L, respectively, for maximal adsorption of basic red-46. The adsorption investigation of genuine textile waste products has also been carried out to facilitate the practical deployment of this approach. The methods used in this study were cost-effective, easy to handle, and eco-friendly and involved no hazardous materials in the synthesis, making the resulting materials non-hazardous. All these methods were part of green chemistry.
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Affiliation(s)
- Aiman Safdar
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Ruba Munir
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Zil-E-Hasnain
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Saima Noreen
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
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Huang J, Wang W, Wu T, Ren X, Zhao X. Photo-electrochemical activation of persulfate for the simultaneous degradation of microplastics and personal care products. RSC Adv 2024; 14:16150-16169. [PMID: 38769957 PMCID: PMC11103671 DOI: 10.1039/d4ra01449a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 05/03/2024] [Indexed: 05/22/2024] Open
Abstract
The recent widespread use of microplastics (MPs), especially in pharmaceuticals and personal care products (PPCPs), has caused significant water pollution. This study presents a UV/electrically co-facilitated activated persulfate (PS) system to co-degrade a typical microplastic polyvinyl chloride (PVC) and an organic sunscreen p-aminobenzoic acid (PABA). We investigated the effect of various reaction conditions on the degradation. PVC and PABA degradation was 37% and 99.22%, respectively. Furthermore, we observed alterations in the surface topography and chemical characteristics of PVC throughout degradation. The possible degradation pathways of PVC and PABA were proposed by analyzing the intermediate products and the free radicals generated. This study reveals the co-promoting effect of multiple mechanisms in the activation by ultraviolet light and electricity.
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Affiliation(s)
- Jiacheng Huang
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province Siping 136000 China
| | - Wanyue Wang
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province Siping 136000 China
| | - Tao Wu
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province Siping 136000 China
| | - Xin Ren
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province Siping 136000 China
- College of Engineering, Jilin Normal University Haifeng Street, Tiexi Dist Siping 136000 China
| | - Xuesong Zhao
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province Siping 136000 China
- College of Engineering, Jilin Normal University Haifeng Street, Tiexi Dist Siping 136000 China
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3
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Tan B, He Z, Fang Y, Zhu L. Removal of organic pollutants in shale gas fracturing flowback and produced water: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 883:163478. [PMID: 37062313 DOI: 10.1016/j.scitotenv.2023.163478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/28/2023] [Accepted: 04/09/2023] [Indexed: 06/03/2023]
Abstract
Shale gas has been developed as an alternative to conventional energy worldwide, resulting in a large amount of shale gas fracturing flowback and produced water (FPW). Previous studies focus on total dissolved solids reduction using membrane desalination. However, there is a lack of efficient and stable techniques to remove organic pollutants, resulting in severe membrane fouling in downstream processes. This review focuses on the concentration and chemical composition of organic matter in shale gas FPW in China, as well as the hazards of organic pollutants. Organic removal techniques, including advanced oxidation processes, coagulation, sorption, microbial degradation, and membrane treatment are systematically reviewed. In particular, the influences of high salt on each technique are highlighted. Finally, different treatment techniques are evaluated in terms of energy consumption, cost, and organic removal efficiency. It is concluded that integrated coagulation-sorption-Fenton-membrane filtration represents a promising treatment process for FPW. This review provides valuable information for the feasible design, practical operation, and optimization of FPW treatment.
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Affiliation(s)
- Bin Tan
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Hangzhou Shangtuo Environmental Technology Co., Ltd, Hangzhou 311121, China
| | - Zhengming He
- School of Environment and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
| | - Yuchun Fang
- Hangzhou Shangtuo Environmental Technology Co., Ltd, Hangzhou 311121, China
| | - Lizhong Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China.
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4
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Ikram M, Zahoor M, Naeem M, Islam NU, Shah AB, Shahzad B. Bacterial oxidoreductive enzymes as molecular weapons for the degradation and metabolism of the toxic azo dyes in wastewater: a review. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Azo dyes are extremely toxic and pose significant environmental and health risks. Consequently, mineralization and conversion to simple compounds are required to avoid their hazardous effects. A variety of enzymes from the bacterial system are thought to be involved in the degradation and metabolism of azo dyes. Bioremediation, a cost effective and eco-friendly biotechnology, involving bacteria is powered by bacterial enzymes. As mentioned, several enzymes from the bacterial system serve as molecular weapons in the degradation of these dyes. Among these enzymes, azoreductase, oxidoreductase, and laccase are of great interest for the degradation and decolorization of azo dyes. Combination of the oxidative and reductive enzymes is used for the removal of azo dyes from water. The aim of this review article is to provide information on the importance of bacterial enzymes. The review also discusses the genetically modified microorganisms in the biodegradation of azo dyes in polluted water.
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Affiliation(s)
- Muhammad Ikram
- Department of Chemistry , Abdul Wali Khan University Mardan , Mardan , 23200 , Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry , University of Malakand at Chakdara , Dir Lower Khyber Pakhtunkhwa , Pakistan
| | - Muhammad Naeem
- Department of Chemistry , Abdul Wali Khan University Mardan , Mardan , 23200 , Pakistan
| | - Noor Ul Islam
- Department of Chemistry , University of Malakand at Chakdara , Dir Lower Khyber Pakhtunkhwa , Pakistan
| | - Abdul Bari Shah
- Division of Applied Life Science (BK21 Plus) , Institute of Agriculture and Life Sciences, Gyeongsang National University , Jinju 52828 , Korea
| | - Babar Shahzad
- Department of Biochemistry , Institute of Basic Medical Sciences, Khyber Medical University Peshawar Khyber Pakhtunkhwa , Peshawar , Pakistan
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5
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Stimulation of ethylene glycol electrooxidation on electrodeposited Ni–PbO2–GN nanocomposite in alkaline medium. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01792-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
AbstractIn this work, a novel system composed of non-precious nickel-based metal oxide/reduced graphene oxide nanocomposite (Ni–PbO2–GN) is used for electrooxidation of ethylene glycol (EG) in 1.0 M NaOH solution and compares its activity with that of Ni, Ni–GN, and Ni–PbO2. The facile electrodeposition technique is used to prepare the catalysts on glassy carbon (GC) substrates. The outcomes of electrochemical measurements show a high performance towards EG oxidation is obtained for Ni-nanocomposite electrodes compared to that of Ni mainly due to their higher surface areas. The excellent electrocatalytic properties of the Ni-nanocomposite could be ascribed to the synergistic contributions of PbO2 and graphene (GN) nano-sheets that help the reduction of Ni grains. A smaller charge transfer resistance value of 34.5 Ω cm2 for EG oxidation reaction at + 360 mV is recorded for GC/Ni–PbO2–GN compared to the other prepared electrodes. Moreover, it exhibits higher kinetic parameters of EG such as diffusion coefficient (D = 3.9 × 10–10 cm2 s−1) and charge transfer rate constant (ks = 32.5 mol−1 cm3 s−1). The overall performance and stability of the prepared catalysts towards EG electrooxidation have been estimated to be in the order of GC/Ni–PbO2–GN > GC/Ni–GN > GC/Ni–PbO2 > GC/Ni.
Graphical abstract
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6
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Synthesis and Electrocatalytic Activity of Bismuth Tungstate Bi2WO6 for Rhodamine B Electro-Oxidation. Catalysts 2022. [DOI: 10.3390/catal12111335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Herein, we have synthesized different BWO samples at different temperatures and evaluated their electrochemical oxidation of Rhodamine B dye in an aqueous medium. The prepared samples were characterized using X-ray diffraction combined with Rietveld refinements, scanning electron microscope coupled with energy dispersive elemental mapping, and thermogravimetric and differential thermal analyses. All the samples crystallize in the orthorhombic Pca21 structure. The crystallite size increased with temperature. The calculated surface areas from the XRD data ranged from 38 to 7 m2 g−1 for BWO-600 to BWO-900, respectively. The optimal BWO loadings on the GCE electrode were 5 × 10−8 mol cm−2 recording the best electrocatalytic efficiency for RhB electrodegradation in 15 min (100%) in 0.1 M of NaCl. The BWO-600 recorded the best activity compared to other BWO samples. The electrocatalytic activity was explained by the high surface area and small crystallite size compared to the other samples. The BWO-600 showed extended electrode reutilization for up to four cycles of reuse under the reported conditions.
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Li S, Tong Y, Dong H, Lu J, Niu J. Formation of stable imine intermediates in the coexistence of sulfamethoxazole and humic acid by electrochemical oxidation. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128166. [PMID: 34996000 DOI: 10.1016/j.jhazmat.2021.128166] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/12/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
The electrochemical degradation performance of sulfamethoxazole (SMX) was studied in the presence of humic acid (HA) by using a Ti/Ti4O7/β-PbO2 anode. The electrochemical degradation efficiency of SMX decreased from 93.4% to 45.8% in 50 min after the addition of 25 mg L-1 HA. The pseudo-first-order kinetic rate constant decreased by 71.4%, and the EEO value increased from 63.8 Wh L-1 to 90.9 Wh L-1. HA and its degradation intermediates could compete for free radicals, especially for ·OH, with SMX. The analytical results obtained using UPLC-ESI-Q-TOF-MS showed that 18 degradation intermediates were identified in the coexistence of SMX and HA. Four imine intermediates were formed through the reactions between the aniline moieties of SMX and quinone groups in the HA structure through covalent bonds. Furthermore, the relative abundances of the intermediates demonstrated that the imine intermediates were complex and stable during electrochemical degradation.
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Affiliation(s)
- Suxin Li
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yanbin Tong
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Hongyu Dong
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Jianjiang Lu
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Junfeng Niu
- School of Chemistry and Chemical Engineering/Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China.
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8
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Dong G, Lang K, Gao Y, Zhang W, Guo D, Li J, Chai DF, Jing L, Zhang Z, Wang Y. A novel composite anode via immobilizing of Ce-doped PbO 2 on CoTiO 3 for efficiently electrocatalytic degradation of dye. J Colloid Interface Sci 2022; 608:2921-2931. [PMID: 34799045 DOI: 10.1016/j.jcis.2021.11.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/05/2021] [Accepted: 11/06/2021] [Indexed: 01/21/2023]
Abstract
The exploitation of efficient electrocatalyst is significantly important for degradation of refractory organic pollutants. Herein, a novel Ti/CoTiO3/Ce-PbO2 composite electrocatalyst (abbreviated as CTO/CP) is successfully constructed via facile consecutive immersion pyrolysis and electro-deposition method and then systematically characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR), energy dispersive spectroscopy (EDS) and near infrared chemical imaging (NIR-CI). Importantly, the electrochemical measurements demonstrate that the CTO/CP possesses numerous prominent properties such as lower charge transfer resistance, larger electroactive area, higher oxygen evolution potential than those of the pristine Ti/CoTiO3 (CTO) and Ti/Ce-PbO2 (CP). Thereby, the CTO/CP exhibits an enhanced electrocatalytic degradation performance with the degradation efficiency as high as 90.0% and COD removal rate of 88.3% at 180 min for the optimal CTO/CP (denoted as 10 layers of CTO and 1 h electrodeposition of CP), in which the ·OH is the major reactive species. Additionally, the optimal CTO/CP also shows a higher ICE/ACE together with lower EEC and desirable stability, universal applicability for many different dyes and reusability. Overall, this work offers a promising approach for enhancing the electrocatalytic properties of CTO via introducing CP.
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Affiliation(s)
- Guohua Dong
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Kun Lang
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Yuanyingxue Gao
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Wenzhi Zhang
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Dongxuan Guo
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Jinlong Li
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Dong-Feng Chai
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China.
| | - Liqiang Jing
- Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, International Joint Research Center for Catalytic Technology, Heilongjiang University, Harbin 150080, PR China.
| | - Zhihua Zhang
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
| | - Yuying Wang
- China College of Chemistry and Chemical Engineering & Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China
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9
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Zhou Q, Zhou X, Zheng R, Liu Z, Wang J. Application of lead oxide electrodes in wastewater treatment: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150088. [PMID: 34563906 DOI: 10.1016/j.scitotenv.2021.150088] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/29/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
Electrochemical oxidation (EO) based on hydroxyl radicals (·OH) generated on lead dioxide has become a typical advanced oxidation process (AOP). Titanium-based lead dioxide electrodes (PbO2/Ti) play an increasingly important role in EO. To further improve the efficiency, the structure and properties of the lead dioxide active surface layer can be modified by doping transition metals, rare earth metals, nonmetals, etc. Here, we compare the common preparation methods of lead dioxide. The EO performance of lead dioxide in wastewater containing dyes, pesticides, drugs, landfill leachate, coal, petrochemicals, etc., is discussed along with their suitable operating conditions. Finally, the factors influencing the contaminant removal kinetics on lead dioxide are systematically analysed.
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Affiliation(s)
- Qingqing Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xule Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Ruihao Zheng
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Zifeng Liu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jiade Wang
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China.
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10
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Yanagi G, Furukawa M, Tateishi I, Katsumata H, Kaneco S. Electrochemical decolorization of methylene blue in solution with metal doped Ti/α,β-PbO₂ mesh electrode. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2021.1896550] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Genta Yanagi
- Department of Chemistry for Materials, Faculty of Engineering, Mie University, Mie Japan
| | - Mai Furukawa
- Department of Chemistry for Materials, Faculty of Engineering, Mie University, Mie Japan
| | - Ikki Tateishi
- Global Environment Center for Education & Research, Mie University, Mie, Japan
| | - Hideyuki Katsumata
- Department of Chemistry for Materials, Faculty of Engineering, Mie University, Mie Japan
| | - Satoshi Kaneco
- Department of Chemistry for Materials, Faculty of Engineering, Mie University, Mie Japan
- Global Environment Center for Education & Research, Mie University, Mie, Japan
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11
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A novel conductive rGO/ZnO/PSF membrane with superior water flux for electrocatalytic degradation of organic pollutants. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119901] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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12
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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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13
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Saleh M, Yildirim R, Isik Z, Karagunduz A, Keskinler B, Dizge N. Optimization of the electrochemical oxidation of textile wastewater by graphite electrodes by response surface methodology and artificial neural network. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1245-1256. [PMID: 34534120 DOI: 10.2166/wst.2021.240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, electrochemical oxidation of combed fabric dyeing wastewater was investigated using graphite electrodes. The response surface methodology (RSM) was used to design the experiments via the central composite design (CCD). The planned experiments were done to track color changes and chemical oxygen demand (COD) removal. The experimental results were used to develop optimization models using RSM and the artificial neural network (ANN) and they were compared. The developed models by the two methods were in good agreement with the experimental results. The optimum conditions were found at 150 A/m2, pH 5, and 120 min. The removal efficiencies for color and COD reached 96.6% and 77.69%, respectively. The operating cost at the optimum conditions was also estimated. The energy and the cost of 1 m3 of wastewater required 34.9 kWh and 2.58 US$, respectively. The graphite electrodes can be successfully utilized for treatment of combed fabric dyeing wastewater with reasonable cost.
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Affiliation(s)
- Mohammed Saleh
- Department of Environmental Engineering, Mersin University, Mersin, 33343, Turkey E-mail:
| | - Rabia Yildirim
- Department of Environmental Engineering, Mersin University, Mersin, 33343, Turkey E-mail:
| | - Zelal Isik
- Department of Environmental Engineering, Mersin University, Mersin, 33343, Turkey E-mail:
| | - Ahmet Karagunduz
- Department of Environmental Engineering, Gebze Technical University, Kocaeli, 41400, Turkey
| | - Bulent Keskinler
- Department of Environmental Engineering, Gebze Technical University, Kocaeli, 41400, Turkey
| | - Nadir Dizge
- Department of Environmental Engineering, Mersin University, Mersin, 33343, Turkey E-mail:
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14
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Bag S, Hasan MI, Halder D, Ghosh A. Biosorption of organic dye Acridine orange from aqueous solution using dry biomass of Bacillus cereus M 116. Arch Microbiol 2021; 203:3811-3823. [PMID: 33999215 DOI: 10.1007/s00203-021-02355-x] [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] [Received: 08/05/2020] [Revised: 04/26/2021] [Accepted: 05/03/2021] [Indexed: 11/26/2022]
Abstract
Acridine orange (AO), a basic carcinogenic fluorochrome dye, is used in the industry for staining. In this study, Gram-positive bacteria, Bacillus cereus M116 (MTCC 5521) dry biomass was tested as an eco-friendly, easily available, and cheap biosorbent for the AO dye removal. We obtained optimum biosorption of AO at a biomass concentration of 0.25 g/L and initial dye concentrations of 50-400 mg/L at neutral to basic pH within the 300 min contact time. Kinetics analysis of the biosorption process was best fitted with the pseudo-second-order reaction type. We also performed the isotherm analysis to predict the nature of the reaction taking place, which was found to follow the Redlich Peterson isotherm model with high determination coefficients. The maximum sorption capacity was 210.46 mg/g of dry biomass. The differential FTIR spectroscopic analysis of pristine and AO-treated Bacillus cereus M116 cells suggested the potential involvement of carbonyl, hydroxyl, and amine groups in the biosorption process. Also, the scanning electron microscopy of the cells after AO removal confirmed a gross surface alteration compared to the untreated cells. Furthermore, Response Surface Model (RSM) analysis with the three-way ANOVA test confirms statistically significant interactions between the dye concentration, pH, and temperature with the biosorption capacity (p < 0.001). Hence, the dry biomass of Bacillus cereus M116 was found to be an effective bio-remedial for the AO removal.
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Affiliation(s)
- Surajit Bag
- Department of Food Technology and Biochemical Engg, Jadavpur University, 188, Raja S.C. Mallick Road, Kolkata, 700032, India
| | - Md Imran Hasan
- Department of Biochemistry, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Dipankar Halder
- Department of Food Technology and Biochemical Engg, Jadavpur University, 188, Raja S.C. Mallick Road, Kolkata, 700032, India
| | - Alok Ghosh
- Department of Biochemistry, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India.
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Optimization of Operating Conditions for Electrochemical Decolorization of Methylene Blue with Ti/α-PbO2/β-PbO2 Composite Electrode. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5050117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
α-PbO2 was introduced into the intermediate layer of an electrode to prevent the separation of the electrodeposited layer and maintain oxidizing power. The resulting Ti/α-PbO2/β-PbO2 composite electrode was applied to the electrochemical decolorization of methylene blue (MB) and the operating conditions for MB decolorization with the Ti/α-PbO2/β-PbO2 electrode were optimized. The morphology, structure, composition, and electrochemical performance of Ti/α-PbO2 and Ti/α-PbO2/β-PbO2 anode were evaluated using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The optimum operating parameters for the electrochemical decolorization of MB at Ti/α-PbO2/β-PbO2 composites were as follows: Na2SO4 electrolyte 0.05 g L−1, initial concentration of MB 9 mg L−1, cell voltage 20 V, current density 0.05–0.10 A cm−2, and pH 6.0. MB dye could be completely decolorized with Ti/α-PbO2/β-PbO2 for the treatment time of less than one hour, and the dye decolorization efficiency with Ti/α-PbO2/β-PbO2 was about 5 times better, compared with those obtained with Ti/α-PbO2.
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16
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Fabrication of tubular porous titanium membrane electrode and application in electrochemical membrane reactor for treatment of wastewater. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Li J, Guo M, Shao Y, Yu H, Ni K. Electrocatalytic Properties of a Novel β-PbO 2/Halloysite Nanotube Composite Electrode. ACS OMEGA 2021; 6:5436-5444. [PMID: 33681583 PMCID: PMC7931436 DOI: 10.1021/acsomega.0c05651] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/08/2021] [Indexed: 06/01/2023]
Abstract
To improve the efficiency of electrochemical degradation of wastewater, lead dioxide was synthesized by a hydrothermal method with low cost, simple operation, and high conversion rate. β-PbO2/HNT composites were prepared by a hydrothermal method with Halloysite nanotubes (HNTs) and β-PbO2. The PbO2/HNT/ITO electrode was prepared by modifying the β-PbO2/HNT composite on an indium tin oxide (ITO) conductive glass electrode. The morphology of the material was characterized by scanning electron microscopy and transmission electron microscopy. The electrochemical performance of the electrode was measured by cyclic voltammetry, the galvanostatic charge-discharge method, and the AC impedance method. Electrolysis of typical dye wastewater by electrochemical oxidation was carried out. The effect of electrochemical degradation of wastewater with new electrodes was investigated and the degree of electrodes falling off was compared. The solubility of electrodes was investigated by inductively coupled plasma mass spectrometry lead element analysis of wastewater. The results showed that the β-PbO2/HNT electrodes were prepared successfully and had good charge-discharge performance and lifetime. The removal rate of electrolytic dye wastewater was 85.86%, and the degradation effect was better than that of pure PbO2 electrodes. In this work, a new type of β-PbO2/HNT/ITO electrode has been prepared, which improved the degradation efficiency of wastewater and opened up the prospect of HNT application.
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Affiliation(s)
- Jiajun Li
- College
of Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Ming Guo
- College
of Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
- College
of Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Yan Shao
- College
of Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Hongwei Yu
- College
of Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Kaijie Ni
- College
of Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
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Xia Y, Feng J, Fan S, Zhou W, Dai Q. Fabrication of a multi-layer CNT-PbO 2 anode for the degradation of isoniazid: Kinetics and mechanism. CHEMOSPHERE 2021; 263:128069. [PMID: 33297073 DOI: 10.1016/j.chemosphere.2020.128069] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 06/12/2023]
Abstract
In this study, the CNTs were successfully compounded in PbO2 electrode through composite electrodeposition technology to obtain multi-layer CNT-PbO2 electrode. Scanning electron microscope, X-ray diffraction and X-ray Photoelectron Spectroscopy were comprehensively used to characterize the lead dioxide electrode and the electrochemical performance were also tested by cyclic voltammetry, and electrochemical impedance spectroscopy. Results showed that CNT-PbO2 significantly improved the electrochemical performance, which was attributed to that the compound of CNTs in PbO2 improved the active sites on the surface, with higher oxidation peaks, smaller particle size, larger specific surface area, and lower charge transfer resistance. In the degradation experiment, the chemical oxygen demand removal efficiency of isoniazid by CNT-PbO2 electrode were 1.37 times of that by pure PbO2 electrode. The main influence factors on the degradation of ISN, such as initial ISN concentration, Na2SO4 concentration, current density and initial pH value was analyzed in detail. Considered comprehensively the effects of ISN removal efficiency, COD and average current efficiency, the degradation of ISN and COD reached 99.4% and 86.8%, respectively, after the electrode was degraded by electrochemical oxidation for 120 min under the best conditions. In addition, the degradation mechanism of ISN in electrochemical oxidation was studied. According to the intermediate products detected by GC-MS, the possible degradation pathway of ISN in electrochemical oxidation system were proposed.
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Affiliation(s)
- Yi Xia
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jieqi Feng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Siqi Fan
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Wan Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Qizhou Dai
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
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19
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Biodegradation and decolorization of textile dyes by bacterial strains: a biological approach for wastewater treatment. Z PHYS CHEM 2020. [DOI: 10.1515/zpch-2020-1708] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Textile industry releases large quantities of toxic dyes, which is a threat to public health and needs proper management before their release into environment. Out of the different approaches used these days, biodegradation and bio-decolorization is considered an eco-friendly and effective technique as this involves the use of microbes. This technique has the potential to be used effectively for a wide variety of dyes. In biological methods, mainly bacteria, fungi, and some algae are usually employed to remove or decolorize dyes present in textiles effluents and wastewaters. A number of researchers have used bacterial strains and relevant isolated enzymes successfully to decolorize a number of dyes. In this review article, various biological methods that have been used for the biodegradation and decolorization of textile dyes have been described. The review will also revive the significance of biological methods over other physical and chemical treatment methods that would be helpful in ensuring clean environment if used on large scale. Out of these methods, biodegradation through bacterial strains is considered as the best alternative to control water pollution as the growth rate of bacteria is considerably high as compared to other microorganisms. Thus if used the required biomass needed for biodegradation can be obtained in comparatively short interval of time.
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20
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Fabrication and photoelectrocatalytic performance of C3N4-modified Ti/PbO2 anode with surface hydrophobicity. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04657-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Kothari MS, Shah KA. Electrochemical oxidation for decolorization of Rhodamine-B dye using mixed metal oxide electrode: modeling and optimization. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:720-731. [PMID: 32460275 DOI: 10.2166/wst.2020.151] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the study the electrochemical oxidation process for decolorization of Rhodamine-B dye was studied using an anode coated with mixed metal oxides: TiO2, RuO2, and IrO2. Batch experimental studies were conducted to assess the effect of four important performance variables, current density, electrolyte concentration, initial pH and electrolysis time, on the decolorization and energy consumption. The process was modeled using an artificial neural network. Response surface methodology using central composite design (CCD) was utilized for optimization of the decolorization process. Based on the experimental design given by CCD, the results obtained by the statistical analysis show that the electrolysis time was the most influential parameter for decolorization whereas the current density had the greatest influence on the energy consumption. According to the optimized results given by the CCD model, maximum color removal of 97% and minimum energy consumption of 1.01 kWh/m3 were predicted in 4.9 minute of electrolysis time, using 0.031 M NaCl concentration at current density 10 mA/cm2 and an initial pH of 3.7. A close conformity was observed between the optimized predicted results and experimental results. The process was found to be efficient and consisted of indirect chemical oxidation producing strong oxidizing agents such as Cl2, HClO and OCl-.
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Affiliation(s)
- Manisha S Kothari
- Civil Engineering Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India E-mail:
| | - Kosha A Shah
- Civil Engineering Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India E-mail:
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22
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Smaili F, Benchettara A. Electrocatalytic Efficiency of PbO2 in Water Decontamination. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519100082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Minh BQ, Long NN, Van Hien P, Dung NT. Rapid and efficient treatment of wastewater from fish sauce-manufacturing factories by using the electrochemical oxidation process. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bui Quang Minh
- Institute of Environmental Technology; Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Nghia Long
- Center for Research and Technology Transfer; Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Pham Van Hien
- Institute of Applied Materials Science; Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Tuan Dung
- Institute for Tropical Technology; Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
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24
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An External Energy Independent WO3/MoCl5 Nano-Sized Catalyst for the Superior Degradation of Crystal Violet and Rhodamine B Dye. Catalysts 2019. [DOI: 10.3390/catal9080642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, the synthesis of a novel catalyst WO3/MoCl5 was carried out by the thermal method. The method gave an entirely different product compared to previous studies that doped Mo on the surface of semiconductor metal oxides. The degradation reaction of crystal violet (CV) and rhodamine B (RB) dye were done without any energy source. The results showed an incomparably superior result for degradation, with a reaction rate constant of 1.74 s−1 for 30 ppm CV, 1.08 s−1 for 30 ppm RB, and a higher value than 1 s−1 for both cases of 50 ppm dye solution. To the author’s knowledge, this catalyst has the highest reaction rate compared to other studies that targeted CV and RB, with an immense reaction rate increase of more than 100 times. Reusability of the three trials was verified, and the only process required was washing the catalyst after the reaction. One of the drawbacks of the advanced oxidation process (AOP), which has a degradation percent limit, has been solved, since 100% mineralization of the dye was available using this catalyst. FT-IR spectroscopy revealed that W-O-Mo linkage was successfully processed while Mo-Cl linkage has retained. 1H-NMR spectroscopy results confirmed that the degradation product of the dye treated by simple MoCl5 and WO3/MoCl5 was different. Deep inspection of specific regions of NMR fields gave necessary information about the degradation product using WO3/MoCl5.
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25
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Schadeck Netto M, Leindcker Rossatto D, Jahn SL, Stoffels Mallmann E, Luiz Dotto G, Luiz Foletto E. Preparation of a novel magnetic geopolymer/zero–valent iron composite with remarkable adsorption performance towards aqueous Acid Red 97. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1635467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Matias Schadeck Netto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Sérgio Luiz Jahn
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Edson Luiz Foletto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
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26
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Elaissaoui I, Akrout H, Grassini S, Fulginiti D, Bousselmi L. Effect of coating method on the structure and properties of a novel PbO 2 anode for electrochemical oxidation of Amaranth dye. CHEMOSPHERE 2019; 217:26-34. [PMID: 30396047 DOI: 10.1016/j.chemosphere.2018.10.161] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 06/08/2023]
Abstract
This study deals with the electrochemical degradation of Amaranth in aqueous solution by means of stainless steel (SS) electrodes coated with a SiOx interlayer deposited by Plasma Enhanced Chemical Vapour Deposition and a modified PbO2 top layer deposited by continuous galvanostatic electrodeposition. The morphological characterization of the PbO2 top-layer performed by Field Emission Scanning Electron Microscope put in evidence that the SiOx, interlayer allows obtaining a more integrated PbO2/SS electrode with a very homogeneous PbO2 film. The composition of the lead oxide layer was investigated by X-ray Diffractometry, showing that the β-PbO2/α-PbO2 ratio in the top layer deposited on the SiOx film was four times higher respect to the one deposited directly on the stainless steel surface. In addition, the electrochemical behaviour of SS/SiOx/PbO2 interfaces was studied by electrochemical impedance spectroscopy (EIS). The EIS results showed that the presence of SiOx favors electron transfer within the oxide layer which improves electro-oxidation capability. Moreover, bulk electrolysis showed that over 100% colour removal and 84% COD removal, using SS/SiOx/PbO2 at acidic pH were reached after 300 min. High Performance Liquid Chromatography analysis was used for the quantitative determinations of initial Amaranth dye molecule removal and to evaluate its specific degradation rate. In order to evaluate the phototoxicity of treated solution with different by-products, different tests of germination were performed and proved that the electrochemical treatment with modified PbO2 could be as an efficient technology for reducing hazardous wastewater toxicity and able to produce water available for reuse.
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Affiliation(s)
- Ines Elaissaoui
- Laboratory of Wastewaters and Environment, Center of Water Researches & Technology (CERTE), Borj Cédria PB 273, Soliman 8020, Tunisia
| | - Hanene Akrout
- Laboratory of Wastewaters and Environment, Center of Water Researches & Technology (CERTE), Borj Cédria PB 273, Soliman 8020, Tunisia.
| | - Sabrina Grassini
- Department of Applied Science and Technology, Polytechnic of Turin, Turin, Italy
| | - Daniele Fulginiti
- Department of Applied Science and Technology, Polytechnic of Turin, Turin, Italy
| | - Latifa Bousselmi
- Laboratory of Wastewaters and Environment, Center of Water Researches & Technology (CERTE), Borj Cédria PB 273, Soliman 8020, Tunisia
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27
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Khalik WF, Ho LN, Ong SA, Voon CH, Wong YS, Yusuf SY, Yusoff NA, Lee SL. Enhancement of simultaneous batik wastewater treatment and electricity generation in photocatalytic fuel cell. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:35164-35175. [PMID: 30328543 DOI: 10.1007/s11356-018-3414-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: 05/14/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to investigate several operating parameters, such as open circuit, different external resistance, pH, supporting electrolyte, and presence of aeration that might enhance the degradation rate as well as electricity generation of batik wastewater in solar photocatalytic fuel cell (PFC). The optimum degradation of batik wastewater was at pH 9 with external resistor 250 Ω. It was observed that open circuit of PFC showed only 17.2 ± 7.5% of removal efficiency, meanwhile the degradation rate of batik wastewater was enhanced to 31.9 ± 15.0% for closed circuit with external resistor 250 Ω. The decolorization of batik wastewater in the absence of photocatalyst due to the absorption of light irradiation by dye molecules and this process was known as photolysis. The degradation of batik wastewater increased as the external resistor value decreased. In addition, the degradation rate of batik wastewater also increased at pH 9 which was 74.4 ± 34.9% and at pH 3, its degradation rate was reduced to 19.4 ± 8.7%. The presence of aeration and sodium chloride as supporting electrolyte in batik wastewater also affected its degradation and electricity generation. The maximum absorbance of wavelength (λmax) of batik wastewater at 535 nm and chemical oxygen demand gradually decreased as increased in irradiation time; however, batik wastewater required prolonged irradiation time to fully degrade and mineralize in PFC system.
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Affiliation(s)
- Wan Fadhilah Khalik
- Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
| | - Li-Ngee Ho
- School of Materials Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia.
| | - Soon-An Ong
- Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
| | - Chun-Hong Voon
- School of Materials Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
| | - Yee-Shian Wong
- Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
| | - Sara Yasina Yusuf
- Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
| | - Nik Athirah Yusoff
- Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
| | - Sin-Li Lee
- School of Materials Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
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28
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Hung CH, Yuan C, Wu MH, Chang YC. Electrochemical degradation of ibuprofen-contaminated soils over Fe/Al oxidation electrodes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:1205-1213. [PMID: 30021285 DOI: 10.1016/j.scitotenv.2018.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/07/2018] [Accepted: 06/01/2018] [Indexed: 06/08/2023]
Abstract
Ibuprofen (IBP) is one of the most known non-steroidal anti-inflammatory drugs. Due to the high consumption and the several ways of discharge, both the aquifer and soil matrix were contaminated by IBP. This study examined the degradation of the IBP in a soil matrix over Fe/Al oxidation electrodes in an electrokinetic system with processing fluids of sodium dodecylsulfate (SDS). The preparation of the Fe/Al oxidation electrode was carried out at a calcination temperature of 500, 550, and 600 °C, which accounted for Fe3+ coating rate of 3.89 ± 0.03%, 4.62 ± 0.04%, and 4.72 ± 0.04%, respectively. Results indicated the generation of hydroxyl radical was proportional to the coating rate of Fe3+ on the electrode. A 200 mg kg-1 of IBP-spiked soil sample was conducted in an electrokinetic system under a potential gradient of 2 V cm-1. The experimental parameters included electrode area of 11-33 cm2 and treatment time of 5-9 days. The remediation efficiency of IBP in the EK systems coupled with Fe/Al oxidation electrode was 70.1-94.6%, which was highly dependent on H2O2 addition, electrode area, and treatment time. Both addition of H2O2 and prolonging treatment time significantly enhanced the degradation of IBP. Whereas increasing electrode area was only favorable for removal mechanism of IBP. Five reaction mechanisms were clearly provided in this study. The aluminum plays an electron donner to trigger Fenton-like reaction continuously to produce hydroxyl radicals. This study confirmed that the electrokinetic process coupled with Fe/Al oxidation electrodes is a viable technique for the remediation of IBP-contaminated soil. Make good use of redox characteristic of aluminum to trigger the Fenton-like reaction in Fe2+-rich environment is a great success in this study. The use of Fe/Al electrodes effectively expands the application of electrochemical degradation in soil remediation.
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Affiliation(s)
- Chung-Hsuang Hung
- Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, No. 1, University Rd., Yenchau Dist., Kaohsiung 824, Taiwan.
| | - Ching Yuan
- Department of Civil and Environmental Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Rd, Nan-Tzu Dist., Kaohsiung City 811, Taiwan.
| | - Min-Hao Wu
- Department of Civil and Environmental Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Rd, Nan-Tzu Dist., Kaohsiung City 811, Taiwan.
| | - Yung-Chuan Chang
- CENPRO Technology Co. Ltd., 8F, No. 286-8, Shin-Ya Rd., Chien-Chen Division, Kaohsiung City 806, Taiwan.
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29
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Barbari K, Delimi R, Benredjem Z, Saaidia S, Djemel A, Chouchane T, Oturan N, Oturan MA. Photocatalytically-assisted electrooxidation of herbicide fenuron using a new bifunctional electrode PbO 2/SnO 2-Sb 2O 3/Ti//Ti/TiO 2. CHEMOSPHERE 2018; 203:1-10. [PMID: 29604424 DOI: 10.1016/j.chemosphere.2018.03.126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 03/12/2018] [Accepted: 03/17/2018] [Indexed: 06/08/2023]
Abstract
The degradation of the herbicide fenuron was investigated using a new porous bifunctional electrode where the electrooxidation takes place on one side and the photocatalysis on the other side. The characterization of the synthetized bifunctional electrode (PbO2/SnO2-Sb2O3/Ti//Ti/TiO2) was performed by scanning electron microscopy, energy dispersive X-ray spectrometry and X-ray diffraction analysis and showed that the anodic side (Ti/SnO2-Sb2O3/PbO2) is covered with a tetragonal β-PbO2 film and that the photocatalytic side (Ti/TiO2) consists of an anatase phase of TiO2. The single application of electrooxidation achieved 87.8% fenuron degradation and 84.1% chemical oxygen demand (COD) removal while heterogeneous photocatalysis resulted in only 59.2% and 39.7% fenuron concentration decay and COD removal, respectively. On the other hand, the photocatalytically-assisted electrooxidation (photo-electrooxidation) performed on the bifunctional electrode provided higher performances of fenuron degradation (97.5%) and mineralization (97.4%). Investigation of operating parameters highlighted the positive effect of increase in current density. Conversely, an increase in fenuron concentration led to a decrease in degradation rate and COD removal. It was also found that the COD removal and mineralization efficiency are higher in a neutral medium.
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Affiliation(s)
- Karima Barbari
- Badji Mokhtar University, Laboratory of Water Treatment and Valorization of Industrial Waste, BP 12, 23000 Annaba, Algeria
| | - Rachid Delimi
- Badji Mokhtar University, Laboratory of Water Treatment and Valorization of Industrial Waste, BP 12, 23000 Annaba, Algeria.
| | - Zahia Benredjem
- Badji Mokhtar University, Laboratory of Water Treatment and Valorization of Industrial Waste, BP 12, 23000 Annaba, Algeria
| | - Samia Saaidia
- Badji Mokhtar University, Laboratory of Water Treatment and Valorization of Industrial Waste, BP 12, 23000 Annaba, Algeria
| | - Abdelhak Djemel
- Badji Mokhtar University, Laboratory of Water Treatment and Valorization of Industrial Waste, BP 12, 23000 Annaba, Algeria
| | - Toufik Chouchane
- URASM, Complexe Sidérurgique, d'El-hadjar, BP 196, Sidi Amar, Annaba 23000, Algeria
| | - Nihal Oturan
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
| | - Mehmet A Oturan
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
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Romero-Soto IC, Dia O, Leyva-Soto LA, Drogui P, Buelna G, Díaz-Tenorio LM, Ulloa-Mercado RG, Gortáres-Moroyoqui P. Degradation of Chloramphenicol in Synthetic and Aquaculture Wastewater Using Electrooxidation. JOURNAL OF ENVIRONMENTAL QUALITY 2018; 47:805-811. [PMID: 30025033 DOI: 10.2134/jeq2017.12.0475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chloramphenicol (CAP) is a broad-spectrum antibiotic widely used in animal farming and aquaculture industries. Despite its ban in many countries around the world, it is still used in several developing countries, with harmful effects on the surrounding aquatic environment. In this study, an electrooxidation process using a Ti/PbO anode was used to investigate the degradation of CAP in both synthetic solution and real aquaculture wastewater. A central composite design was used to determine the optimum conditions for CAP removal. Current intensity and treatment time had the most impact on the CAP removal. These two factors accounted for ∼90% of CAP removal. The optimum conditions found in this study were current intensity of 0.65 A, treatment time of 34 min, and CAP initial concentration of 0.5 mg L. Under these conditions, 98.7% of CAP removal was achieved with an energy consumption of 4.65 kW h m. The antibiotic was not present in the aquaculture wastewater, which received 0.5 mg L of CAP and was treated (by electrooxidation) under the optimum conditions. A complete removal of CAP was obtained after 34 min of treatment. According to these results, electrooxidation presents an option for the removal of antibiotics, secondary compounds, and other organic and inorganic compounds from solution.
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31
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Li D, Wang S, Tian Y, Ma H, Ma C, Fu Y, Dong X. Preparation and Photoelectrocatalytic Performance of Ti/PbO
2
Electrodes Modified with Ti
4
O
7. ChemistrySelect 2018. [DOI: 10.1002/slct.201703181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Dunchao Li
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Shuai Wang
- The 18th Research Institute of China Electronics Technology Group Corporation, Tianjin, P.R. China
| | - Yihua Tian
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Hongchao Ma
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Chun Ma
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Yinghuan Fu
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Xiaoli Dong
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
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32
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Yuan C, Hung CH, Huang TY. Application of RuO 2/Ni foam electrodes for remediation of ibuprofen in soil matrix-the effect of electrokinetic parameters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:5181-5190. [PMID: 28540552 DOI: 10.1007/s11356-017-9244-6] [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: 12/28/2016] [Accepted: 05/09/2017] [Indexed: 06/07/2023]
Abstract
Pharmaceuticals and personal care products (PPCPs) are an extraordinary and diverse group of chemicals used in veterinary medicine, agriculture, and for human health and cosmetics care. They are considered emerging contaminants and have raised great concern in recent years. Among the PPCPs, ibuprofen (IBP) is one of the most known non-steroidal anti-inflammatory drugs, which has been found at a high concentration in irrigation water in the USA and showed harmful effect for organisms. This study examined IBP degradation performance by an electrokinetic process coupled with 24-96 cm2 of RuO2/Ni foam (RN) electrodes applied 1-3 V cm-1 potential gradient for 5-9 days. The electroosmosis permeabilities (k e) and the treatment efficiency of IBP increased from 1.5 × 10-4 to 1.8 × 10-4 cm2 V-1 s-1 and from 65.4 to 78.4%, respectively, as the potential gradient increased from 1 to 3 V cm-1. The k e values also increased with electrode area, but it was much less insignificant than that of the potential gradient. Prolonging the treatment time and increasing the electrode area only enhanced the IBP remediation efficiency by a trivial amount. The degradation mechanism was more critical for IBP remediation than was the electrokinetic (EK) removal mechanism. A cost analysis revealed that processing fluid accounted for 84.1-87.6% of the operation cost. The electrode characteristics and the treatment mechanism are also discussed. This study confirmed that the IBP-contaminated soil was successfully remediated by electrokinetic process coupled with RN electrodes.
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Affiliation(s)
- Ching Yuan
- Department of Civil and Environmental Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Rd, Nan-Tzu Dist., Kaohsiung City, 811, Taiwan.
| | - Chung-Hsuang Hung
- Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, No. 1, University Rd., Yenchau Dist., Kaohsiung, 824, Taiwan
| | - Tzu-Yuan Huang
- MWH Americas Inc., Kaohsiung Division, Taiwan Branch, 5F-4, No. 597, Jiuru 2nd Rd., San-Ming Division, Kaohsiung City, 807, Taiwan
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33
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Photoelectrocatalytic performance of conductive carbon black-modified Ti/F-PbO2 anode for degradation of dye wastewater (reactive brilliant blue KN-R). J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3854-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Irikura K, Bocchi N, Rocha-Filho RC, Biaggio SR, Iniesta J, Montiel V. Electrodegradation of the Acid Green 28 dye using Ti/β-PbO2 and Ti-Pt/β-PbO2 anodes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 183:306-313. [PMID: 27604754 DOI: 10.1016/j.jenvman.2016.08.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/15/2016] [Accepted: 08/24/2016] [Indexed: 06/06/2023]
Abstract
The statistical Response Surface Methodology (RSM) is applied to investigate the effect of different parameters (current density, j, NaCl concentration, [NaCl], pH, and temperature, θ) and their interactions on the electrochemical degradation of the Acid Green (AG) 28 dye using a Ti/β-PbO2 or Ti-Pt/β-PbO2 anode in a filter-press reactor. LC/MS is employed to identify intermediate compounds. For both anodes, the best experimental conditions are j = 50 mA cm(-2), [NaCl] = 1.5 g L(-1), pH = 5, and θ = 25 °C. After 3 h of electrolysis, a dye solution treated under these conditions presents the following parameters: electric charge per unit volume of the electrolyzed solution required for 90% decolorization (Q(90)) of 0.34-0.37 A h L(-1), %COD removal of ∼100%, specific energy consumption of 18-20 kW h m(-3), and %TOC removal of 32-33%. No loss of the β-PbO2 film is observed during all the experiments. The β-PbO2 films present excellent stability for solutions with pH ≥ 5 ([Pb(2+)] < 0.5 mg L(-1)). Chloroform is the only volatile organic halo compound present in the treated solution under those optimized conditions. Hydroxylated anthraquinone derivatives, aromatic chloramines, and naphthoquinones are formed during the electrolyses. The Ti/β-PbO2 and Ti-Pt/β-PbO2 anodes show significantly better performance than a commercial DSA anode for the electrochemical degradation of the AG 28 dye. The Ti/β-PbO2 anode, prepared as described in this work, is an excellent option for the treatment of textile effluents because of its low cost of fabrication and good performance.
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Affiliation(s)
- Kallyni Irikura
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
| | - Nerilso Bocchi
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil.
| | - Romeu C Rocha-Filho
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
| | - Sonia R Biaggio
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, SP, Brazil
| | - Jesús Iniesta
- Departamento de Química Física, Instituto Universitario de Electroquímica, Facultad de Ciencias, Universidad de Alicante, Apartado de Correos 99, E-03080 Alicante, Spain
| | - Vicente Montiel
- Departamento de Química Física, Instituto Universitario de Electroquímica, Facultad de Ciencias, Universidad de Alicante, Apartado de Correos 99, E-03080 Alicante, Spain
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Fan Y, Wu Y, Fang P, Sha H, Cha L, Ming Z. Co2O3-NH2-MCM-41 Decorated Graphite as an Effective Electrode: Synthesis, Characterization and its Application for Electro-catalytic Oxidation of Acid Red 1. ELECTROANAL 2016. [DOI: 10.1002/elan.201600459] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yiang Fan
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes; Ministry of Education; Hohai University; 1st Xikang Road Nanjing 210098 China
- College of Environment; Hohai University; 1st Xikang Road Nanjing 210098 China
| | - Yunhai Wu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes; Ministry of Education; Hohai University; 1st Xikang Road Nanjing 210098 China
- College of Environment; Hohai University; 1st Xikang Road Nanjing 210098 China
| | - Peng Fang
- College of Environment; Hohai University; 1st Xikang Road Nanjing 210098 China
| | - Haitao Sha
- College of Environment; Hohai University; 1st Xikang Road Nanjing 210098 China
| | - Ligen Cha
- College of Environment; Hohai University; 1st Xikang Road Nanjing 210098 China
| | - Zhu Ming
- College of Environment; Hohai University; 1st Xikang Road Nanjing 210098 China
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36
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Nguyen DD, Ngo HH, Guo W, Nguyen TT, Chang SW, Jang A, Yoon YS. Can electrocoagulation process be an appropriate technology for phosphorus removal from municipal wastewater? THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 563-564:549-556. [PMID: 27155077 DOI: 10.1016/j.scitotenv.2016.04.045] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/07/2016] [Accepted: 04/07/2016] [Indexed: 06/05/2023]
Abstract
This paper evaluated a novel pilot scale electrocoagulation (EC) system for improving total phosphorus (TP) removal from municipal wastewater. This EC system was operated in continuous and batch operating mode under differing conditions (e.g. flow rate, initial concentration, electrolysis time, conductivity, voltage) to evaluate correlative phosphorus and electrical energy consumption. The results demonstrated that the EC system could effectively remove phosphorus to meet current stringent discharge standards of less than 0.2mg/L within 2 to 5min. This target was achieved in all ranges of initial TP concentrations studied. It was also found that an increase in conductivity of solution, voltages, or electrolysis time, correlated with improved TP removal efficiency and reduced specific energy consumption. Based on these results, some key economic considerations, such as operating costs, cost-effectiveness, product manufacturing feasibility, facility design and retrofitting, and program implementation are also discussed. This EC process can conclusively be highly efficient in a relatively simple, easily managed, and cost-effective for wastewater treatment system.
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Affiliation(s)
- D Duc Nguyen
- Department of Environmental Energy & Engineering, Kyonggi University, 442-760, Republic of Korea; Ho Chi Minh City University of Natural Resources and Environment, Viet Nam
| | - H Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney (UTS), Australia.
| | - W Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney (UTS), Australia
| | - T Thanh Nguyen
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney (UTS), Australia
| | - Soon W Chang
- Department of Environmental Energy & Engineering, Kyonggi University, 442-760, Republic of Korea
| | - A Jang
- Department of Water Resource, Graduate School of Water Resources, Sungkyunkwan University (SKKU), 16419, Republic of Korea
| | - Yong S Yoon
- Department of Chemical Engineering, Dankook University, 448-701, Republic of Korea.
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37
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Electrochemical degradation of linuron in aqueous solution using Pb/PbO2 and C/PbO2 electrodes. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2011.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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38
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Nunes MJ, Monteiro N, Pacheco MJ, Lopes A, Ciríaco L. Ti/β-PbO2 versus Ti/Pt/β-PbO2: Influence of the platinum interlayer on the electrodegradation of tetracyclines. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:839-846. [PMID: 27230959 DOI: 10.1080/10934529.2016.1181455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The behaviors of the electrodes Ti/PbO2 and Ti/Pt/PbO2 as anodes in the electro-oxidation of two antibiotics-tetracycline and oxytetracycline-were evaluated at different applied current densities, to evaluate the influence of the Pt interlayer. In the preparation of the electrodes, the electrodeposited β-PbO2 phase was homogeneous; no Ti or Pt peaks were detected in the diffractograms. The β-PbO2 surface presented significant roughness when deposited over the Pt interlayer, which also conferred significant conductivity to the material. In the electro-oxidation assays, the COD, TOC and absorbance removals increased with the current density due to an increase in the concentration of hydroxyl radicals, for both electrode materials and antibiotics tested. Slightly better results were obtained with Ti/PbO2. The primary differences observed in the antibiotics concentration decay consisted of zero-order kinetics at the Ti/Pt/PbO2 anode and first-order kinetics at the Ti/PbO2 anode with a higher oxytetracycline concentration decay than the tetracycline concentration decay. A greater amount of total nitrogen was eliminated with the Ti/PbO2 electrode. At the Ti/Pt/PbO2 anode, the organic nitrogen primarily transformed into NH4(+) and the total nitrogen remained unchanged. The specific energy consumption with the Ti/Pt/PbO2 anode was significantly lower than the specific energy consumption with the Ti/PbO2 anode due to the higher electrical conductivity of the Ti/Pt/PbO2 anode. Both anode materials were also utilized in the electro-oxidation of a leachate sample collected at sanitary landfill and spiked with tetracycline, and the complete elimination of the antibiotic molecule was observed.
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Affiliation(s)
- Maria João Nunes
- a FibEnTech UBI Research Unit and Department of Chemistry , University of Beira Interior , Covilhã , Portugal
| | - Nuno Monteiro
- a FibEnTech UBI Research Unit and Department of Chemistry , University of Beira Interior , Covilhã , Portugal
| | - Maria José Pacheco
- a FibEnTech UBI Research Unit and Department of Chemistry , University of Beira Interior , Covilhã , Portugal
| | - Ana Lopes
- a FibEnTech UBI Research Unit and Department of Chemistry , University of Beira Interior , Covilhã , Portugal
| | - Lurdes Ciríaco
- a FibEnTech UBI Research Unit and Department of Chemistry , University of Beira Interior , Covilhã , Portugal
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39
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Espinoza JDG, Drogui P, Zolfaghari M, Dirany A, Ledesma MTO, Gortáres-Moroyoqui P, Buelna G. Performance of electrochemical oxidation process for removal of di (2-ethylhexyl) phthalate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:12164-12173. [PMID: 26971515 DOI: 10.1007/s11356-016-6304-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
Di (2-ethylhexyl) phthalate (DEHP) is the most detected and concentrated plasticizer in environment and wastewaters, worldwide. In this study, different operating parameters such as current intensity, treatment time, type of anodes, and supporting electrolytes were tested to optimized the electro-oxidation process (EOP) for the removal of DEHP in the presence of methanol as a dissolved organic matter. Among the anodes, the Nb/BDD showed the best degradation rate of DEHP, at low current intensity of 0.2 A after 90 min of treatment time with a percentage of degradation recorded of 81 %, compared to 70 % obtained with the Ti/IrO2-RuO2. Furthermore, due to the combination of direct and indirect oxidation, the removal of DEHP in the presence of 1 g/L Na2SO4 was higher than NaBr, even though the oxidant production of NaBr was 11.7 mmol/L against 3.5 mmol/L recorded in the presence of sulfate at 0.5 A and after 60 min of electrolysis time. Under optimal condition (current intensity = 0.5 A, time = 120 min, using Nb/BDD anode and Na2SO4 as supporting electrolyte), the removal of 87.2 % of DEHP was achieved. The total cost of 0.106 US$/m(3) of treated water was achieved based on economical optimization of reactor with current intensity of 0.2 A and 1 g/L Na2SO4.
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Affiliation(s)
- Josué Daniel García Espinoza
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510, México City, D.F., México
| | - Patrick Drogui
- Institut national de la recherche scientifique (INRS-Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1K 9A9, Canada.
| | - Mehdi Zolfaghari
- Institut national de la recherche scientifique (INRS-Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Ahmad Dirany
- Institut national de la recherche scientifique (INRS-Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Maria Teresa Orta Ledesma
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510, México City, D.F., México
| | - Pablo Gortáres-Moroyoqui
- Departamento de Biotecnología y Ciencias Alimentarias, Dirección de Recursos Naturales, Instituto Tecnológico de Sonora, Ciudad Obregón, Sonora, México
| | - Gerardo Buelna
- Industrial research center of Quebec, 333 rue Franquet, Québec, QC, G1P 4C7, Canada
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40
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Gupta SK, Nayunigari MK, Misra R, Ansari FA, Dionysiou DD, Maity A, Bux F. Synthesis and Performance Evaluation of a New Polymeric Composite for the Treatment of Textile Wastewater. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03714] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. K. Gupta
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
- Environmental
Engineering, Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - M. K. Nayunigari
- Department
of Civil and Chemical Engineering, University of South Africa (UNISA), Pretoria 0002, South Africa
| | - R. Misra
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
| | - F. A. Ansari
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
| | - D. D. Dionysiou
- Environmental
Engineering and Science Program, Department of Biomedical, Chemical
and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45220, United States
| | - A. Maity
- Department
of Civil and Chemical Engineering, University of South Africa (UNISA), Pretoria 0002, South Africa
- DST/CSIR
National
Centre for Nanostructured Materials, Council for Scientific and Industrial
Research, Pretoria 0001, South Africa
| | - F. Bux
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
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41
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Degradation of azo dye C.I. Acid Red 18 using an eco-friendly and continuous electrochemical process. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0175-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Thokchom B, Pandit AB, Qiu P, Park B, Choi J, Khim J. A review on sonoelectrochemical technology as an upcoming alternative for pollutant degradation. ULTRASONICS SONOCHEMISTRY 2015; 27:210-234. [PMID: 26186839 DOI: 10.1016/j.ultsonch.2015.05.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 05/08/2015] [Accepted: 05/13/2015] [Indexed: 06/04/2023]
Abstract
Sonoelectrochemical process has emerged as a novel integrated technology for various applications starting from sonoelectroplating till the remediation of a wide range of contaminants. Although a promising new technology, the application of sonoelectrochemical technology for pollutant degradation are mostly on a laboratory scale, utilizing the conventional reactor configuration of the electrolytic vessel and ultrasonic horns dipped in it. This type of configuration has been believed to be responsible for its sluggish evolution with lower reproducibility, scale-up and design aspects. To achieve a major turn with an enhanced synergy, refinements in the form of optimizing the co-ordination of the governing parameters of both the technologies (e.g., power, frequency, liquid height, electrode material, electrode size, electrode gap, applied voltage, current density etc.) have been validated. Besides, in order to supplement knowledge in the already existing pool, rigorous research on the past and present status has been done. Challenges were also identified and to overcome them, critical discussions covering an overview of the progressive developments on combining the two technologies and its major applications on pollutant degradation were conducted.
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Affiliation(s)
- Binota Thokchom
- School of Civil, Environmental and Architectural Engineering, Korea University, 5-ga, Anam-dong, Seongbuk-gu, Seoul 136-701, South Korea
| | - Aniruddha B Pandit
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai 40019, India.
| | - Pengpeng Qiu
- School of Civil, Environmental and Architectural Engineering, Korea University, 5-ga, Anam-dong, Seongbuk-gu, Seoul 136-701, South Korea
| | - Beomguk Park
- School of Civil, Environmental and Architectural Engineering, Korea University, 5-ga, Anam-dong, Seongbuk-gu, Seoul 136-701, South Korea
| | - Jongbok Choi
- School of Civil, Environmental and Architectural Engineering, Korea University, 5-ga, Anam-dong, Seongbuk-gu, Seoul 136-701, South Korea
| | - Jeehyeong Khim
- School of Civil, Environmental and Architectural Engineering, Korea University, 5-ga, Anam-dong, Seongbuk-gu, Seoul 136-701, South Korea.
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Bustos YA, Rangel-Peraza JG, Rojas-Valencia MN, Bandala ER, Álvarez-Gallegos A, Vargas-Estrada L. Treatment of industrial effluents by electrochemical generation of H2O2 using an RVC cathode in a parallel plate reactor. ENVIRONMENTAL TECHNOLOGY 2015; 37:815-827. [PMID: 26419746 DOI: 10.1080/09593330.2015.1086820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Electrochemical techniques have been used for the discolouration of synthetic textile industrial wastewater by Fenton's process using a parallel plate reactor with a reticulated vitreous carbon (RVC) cathode. It has been shown that RVC is capable of electro-generating and activating H2O2 in the presence of Fe(2+) added as catalyst and using a stainless steel mesh as anode material. A catholyte comprising 0.05 M Na2SO4, 0.001 M FeSO4.7H2O, 0.01 M H2SO4 and fed with oxygen was used to activate H2O2.The anolyte contained only 0.8 M H2SO4. The operating experimental conditions were 170 mA (2.0 V < ΔECell < 3.0 V) to generate 5.3 mM H2O2. Synthetic effluents containing various concentrations (millimolar - mM) of three different dyes, Blue Basic 9 (BB9), Reactive Black 5 (RB5) and Acid Orange 7 (AO7), were evaluated for discolouration using the electro-assisted Fenton reaction. Water discolouration was measured by UV-VIS absorbance reduction. Dye removal by electrolysis was a function of time: 90% discolouration of 0.08, 0.04 and 0.02 mM BB9 was obtained at 14, 10 and 6 min, respectively. In the same way, 90% discolouration of 0.063, 0.031 and 0.016 mM RB5 was achieved at 90, 60 and 30 min, respectively. Finally, 90% discolouration of 0.14, 0.07 and 0.035 mM AO7 was achieved at 70, 40 and 20 min, respectively. The experimental results confirmed the effectiveness of electro-assisted Fenton reaction as a strong oxidizing process in water discolouration and the ability of RVC cathode to electro-generate and activate H2O2 in situ.
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Affiliation(s)
- Yaneth A Bustos
- a División de Estudios de Posgrado e Investigación - Ingeniería Ambiental . Instituto Tecnológico de Culiacán . Av. Juan de Dios Batiz 310. Col. Guadalupe, 80220 Culiacán , Sinaloa , México
| | - Jesús Gabriel Rangel-Peraza
- a División de Estudios de Posgrado e Investigación - Ingeniería Ambiental . Instituto Tecnológico de Culiacán . Av. Juan de Dios Batiz 310. Col. Guadalupe, 80220 Culiacán , Sinaloa , México
| | - Ma Neftalí Rojas-Valencia
- b Universidad Nacional Autónoma de México, Instituto de Ingeniería, Coordinación de Ingeniería Ambiental , México , DF , Mexico
| | - Erick R Bandala
- c Departamento de Ingeniería Química, Alimentos y Ambiental , Universidad de las Américas , Puebla. Sta. Catarina Mártir, Cholula , México
| | - Alberto Álvarez-Gallegos
- d Centro de Investigación en Ingeniería y Ciencias Aplicadas (CIICAp), Universidad Autónoma del Estado de Morelos. Av. Universidad 1001. Col. Chamilpa 62209 , Cuernavaca , Morelos , México
| | - Laura Vargas-Estrada
- d Centro de Investigación en Ingeniería y Ciencias Aplicadas (CIICAp), Universidad Autónoma del Estado de Morelos. Av. Universidad 1001. Col. Chamilpa 62209 , Cuernavaca , Morelos , México
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Särkkä H, Vepsäläinen M, Sillanpää M. Natural organic matter (NOM) removal by electrochemical methods — A review. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.07.029] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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45
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46
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Thiam A, Brillas E, Centellas F, Cabot PL, Sirés I. Electrochemical reactivity of Ponceau 4R (food additive E124) in different electrolytes and batch cells. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.085] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Platinum-free lead dioxide electrode for electrooxidation of organic compounds. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2950-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Yahiaoui I, Aissani-Benissad F, Fourcade F, Amrane A. Removal of a mixture tetracycline-tylosin from water based on anodic oxidation on a glassy carbon electrode coupled to activated sludge. ENVIRONMENTAL TECHNOLOGY 2015; 36:1837-1846. [PMID: 25650749 DOI: 10.1080/09593330.2015.1013571] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The purpose of this study was first to examine the electrochemical oxidation of two antibiotics, tetracycline (TC) and tylosin (Tylo), considered separately or in mixture, on a glassy carbon electrode in aqueous solutions; and then to assess the relevance of such electrochemical process as a pre-treatment prior to a biological treatment (activated sludge) for the removal of these antibiotics. The influence of the working potential and the initial concentration of TC and Tylo on the electrochemical pre-treatment process was also investigated. It was noticed that antibiotics degradation was favoured at high potential (2.4 V/ saturated calomel electrode (SCE)), achieving total degradation after 50 min for TC and 40 min for Tylo for 50 mg L(-1) initial concentration, with a higher mineralization efficiency in the case of TC. The biological oxygen demand in 5 days (BOD5)/Chemical oxygen demand (COD) ratio increased substantially, from 0.033 to 0.39 and from 0.038 to 0.50 for TC and Tylo, respectively. Regarding the mixture (TC and Tylo), the mineralization yield increased from 10.6% to 30.0% within 60 min of reaction time when the potential increased from 1.5 to 2.4 V/SCE and the BOD5/COD ratio increased substantially from 0.010 initially to 0.29 after 6 h of electrochemical pre-treatment. A biological treatment was, therefore, performed aerobically during 30 days, leading to an overall decrease of 72% of the dissolved organic carbon by means of the combined process.
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Affiliation(s)
- Idris Yahiaoui
- a Laboratoire de Génie de l'Environnement (LGE) , Faculté de Technologie, Université de Bejaia , 06000 Bejaia , Algeria
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Zhang Q, Guo X, Cao X, Wang D, Wei J. Facile preparation of a Ti/α-PbO2/β-PbO2 electrode for the electrochemical degradation of 2-chlorophenol. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(15)60851-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Jin Y, Wang F, Xu M, Hun Y, Fang W, Wei Y, Zhu C. Preparation and characterization of Ce and PVP co-doped PbO2 electrode for waste water treatment. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2015.01.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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