1
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Liu H, Wang S, Fu L, Le T, Dai L, Xia H, Zhang L. High-efficiency recycling of copper-cadmium slag by ozonation with ultrasonic catalysis. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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2
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Liu X, Peng X, Wang A, Yang C, Cheng Y, Wang J, Wu Y, Ju C. Preparation of TiO2/CX composite photoanode and its breathing-like mode photoelectrocatalytic degradation of solubilized PHE in soil washing effluent. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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3
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Recovery of Rare Metals from Superalloy Scraps by an Ultrasonic Leaching Method with a Two-Stage Separation Process. SEPARATIONS 2022. [DOI: 10.3390/separations9070184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Superalloy scraps are deemed as potential unconventional sources of rare metals. In this study, an ultrasonic leaching method with a two-stage separation process was proposed. A series of Eh-pH diagrams for rare metals was constructed, and the results indicated that the leaching and separation process could be realized by adjusting the potential and pH values of leaching solutions. In the ultrasonic leaching process, results showed that the economic leaching percentages of Re, Ni, Co, Al, and Cr were 92.3%, 95.2%, 98.5%, 98.7%, and 97.5%, respectively. Compared with conventional leaching, ultrasonic leaching can improve the leaching percentages of rare metals by approximately 20%. In the two-stage separation process, the optimal recovery efficiencies of Al and Cr were 94.6% and 82.1% at a pH of 4.5, and Ni and Co were 99.5% and 98.3% at a pH of 7.5. With a two-stage precipitate process, rare metals can be efficiently recovered without generating any waste acid.
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4
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Patidar R, Srivastava VC. Ultrasound-assisted electrochemical treatment of cosmetic industry wastewater: Mechanistic and detoxification analysis. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126842. [PMID: 34416687 DOI: 10.1016/j.jhazmat.2021.126842] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
This study aims to investigate the mineralization of cosmetics producing industrial wastewater (CW) using sono-electrochemical (US-EC) treatments. The influence of operating parameters such as current density (j), electrolyte (Na2SO4) concentration (m), initial pH (pHo), and ultrasonic power was investigated using Ti/RuO2 dimensionally stable electrodes. The results demonstrated 80.9% chemical oxygen demand (COD) removal efficiency, 433.5 kWh (kg COD removed)-1 of specific energy consumption at the optimum conditions of P = 100 W, j = 213 A m-2, pHo= 7.6 (natural pH), and m = 1.5 g L-1. With the application of ultrasound, COD removal efficiency increases from 60.2% to 80.9%, with a synergistic effect of 1.1. Kinetics study analysis confirms that mineralization follows the nth order kinetics model. In the presence of ultrasound, the performance of electrochemical treatment gets enhanced due to higher electron transfer, the enhanced production of •OH radicals, and sulfate radicals (SO4•-). The pathway for the degradation of the compound was suggested by quadrupole time of flight mass spectroscopy (QToF-MS). The operating cost of the process was also evaluated to establish the applicability of the US-EC process at the industrial scale.
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Affiliation(s)
- Ritesh Patidar
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
| | - Vimal Chandra Srivastava
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
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5
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Divyapriya G, Singh S, Martínez-Huitle CA, Scaria J, Karim AV, Nidheesh PV. Treatment of real wastewater by photoelectrochemical methods: An overview. CHEMOSPHERE 2021; 276:130188. [PMID: 33743419 DOI: 10.1016/j.chemosphere.2021.130188] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
An inadequate and inefficient performance ability of conventional methods to remove persistent organic pollutants urges the need of alternative or complementary advanced wastewater treatments methods to ensure the safer reuse of reclaimed water. Photoelectrochemical methods are emerging as promising options among other advanced oxidation processes because of the higher treatment efficiency achieved due to the synergistic effects of combined photochemical and electrolysis reactions. Synergistic effects of integrated photochemical, electrochemical and photoelectrochemical processes not only increase the hydroxyl radical production; an enhancement on the mineralization ability through various side reactions is also achieved. In this review, fundamental reaction mechanisms of different photoelectrochemical methods including photoelectrocatalysis, photo/solar electro-Fenton, photo anodic oxidation, photoelectroperoxone and photocatalytic fuel cell are discussed. Various integrated photochemical, electrochemical and photoelectrochemical processes and their synergistic effects are elaborated. Different reactor configurations along with the positioning of electrodes, photocatalysts and light source of the individual/combined photoelectrochemical treatment systems are discussed. Modified photoanode and cathode materials used in the photoelectrochemical reactors and their performance ability is presented. Photoelectrochemical treatment of real wastewater such as landfill leachate, oil mill, pharmaceutical, textile, and tannery wastewater are reviewed. Hydrogen production efficiency in the photoelectrochemical process is further elaborated. Cost and energy involved in these processes are briefed, but the applicability of photocatalytic fuel cells to reduce the electrical dependence is also summarised. Finally, the use of photoelectrochemical approaches as an alternative for treating soil washing effluents is currently discussed.
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Affiliation(s)
- G Divyapriya
- Virginia Polytechnic Institute and State University, USA
| | - Seema Singh
- Omvati Devi Degree College, Bhalaswagaj, Haridwar, India
| | - Carlos A Martínez-Huitle
- Institute of Chemistry, Federal University of Rio Grande do Norte, Lagoa Nova, CEP 59078-970, Natal, RN, Brazil.
| | - Jaimy Scaria
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India
| | - Ansaf V Karim
- Environmental Science and Engineering Department, Indian Institute of Technology, Bombay, India
| | - P V Nidheesh
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India.
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6
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Fernández-Marchante CM, Souza FL, Millán M, Lobato J, Rodrigo MA. Does intensification with UV light and US improve the sustainability of electrolytic waste treatment processes? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111597. [PMID: 33168294 DOI: 10.1016/j.jenvman.2020.111597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 05/03/2023]
Abstract
This work aims to assess the influence of ultrasounds (US) application or ultraviolet (UV) light irradiation on the efficiency and sustainability of the treatment of wastes by conductive diamond electrochemical oxidation (CDEO). To do this, a life cycle assessment (LCA) is carried out in order to quantify the environmental impacts of the intensified CDEO processes. Inventories of three bench scale remediation plants (CDEO, Sono-CDEO and Photo-CDEO) in which the different technologies are implemented are performed by means of Ecoinvent 3.3 data base. AWARE, USEtox, IPPC and ReCiPe methodologies are used to quantify the environmental burden into 5 midpoint (water footprint, global warming 100a, ozone layer depletion, human toxicity, freshwater ecotoxicity) and 17 endpoint impact categories. Photo-CDEO attains the faster and more efficient removal in terms of energy consumed. All impact categories are lower in the case in which UV light irradiation is coupled to the CDEO treatment, particularly if the electrolyte does not contain chloride anions. From the point of view of toxicity and ecotoxicity, it is essential to achieve a complete mineralization, because of the intermediates generated into wastes containing chloride anions can become more hazardous than the initial pesticide. The operation of these technologies at large current densities shows positive results from the sustainability point of view, despite the huge environmental impact related to the energy production. Data notice that almost a 99.0% of the total global warming potential is mainly due to the electricity required during the electrochemical treatment, being higher by the sono and photo CDEO treatments because of the use of additional devices. Nevertheless, this issue can be overcome by means of using renewable energies as power sources of these remediation treatments. According to results, it can be claimed that the electrochemical technologies may successfully compete with other AOPs in terms of sustainability.
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Affiliation(s)
- C M Fernández-Marchante
- Department of Chemical Engineering, University of Castilla La Mancha, Campus Universitario s/n. 13071, Ciudad Real, Spain.
| | - F L Souza
- Department of Chemical Engineering, University of Castilla La Mancha, Campus Universitario s/n. 13071, Ciudad Real, Spain
| | - M Millán
- Department of Chemical Engineering, University of Castilla La Mancha, Campus Universitario s/n. 13071, Ciudad Real, Spain
| | - J Lobato
- Department of Chemical Engineering, University of Castilla La Mancha, Campus Universitario s/n. 13071, Ciudad Real, Spain
| | - M A Rodrigo
- Department of Chemical Engineering, University of Castilla La Mancha, Campus Universitario s/n. 13071, Ciudad Real, Spain
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7
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Wang Z, Sun T, Luo T, Shi X, Lin H, Zhang H. Selective removal of phenanthrene for the recovery of sodium dodecyl sulfate by UV-C and UV-C/PDS processes: Performance, mechanism and soil washing recycling. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123141. [PMID: 32574877 DOI: 10.1016/j.jhazmat.2020.123141] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
Soil washing is commonly used to remediate PAHs contaminated sites. However, the effluent after washing containing PAHs and surfactant may cause secondary pollution and remediation cost is still high, unless PAHs are selectively removed from the effluent and the surfactant is recovered and recycled. Herein, ultraviolet irradiation (254 nm, UV-C) and its combination with peroxydisulfate (UV-C/PDS) were applied to selectively degrade PHE in the synthetic soil washing effluent. At natural pH of 8.6, 98.2 % of PHE was removed within 30 min under 6 W UV-C irradiation. After adding 2 mM PDS, the time was shortened to 8 min but still achieving 98.7 % PHE removal and less toxic treated effluent than UV-C alone. The 1O2 was the main oxidizing species in UV-C alone system, while 1O2 as well OH and SO4- were responsible for PHE removal in the UV-C/PDS system. The possible intermediates of PHE degradation were recognized using liquid chromatography-mass spectrometry technique and the degradation pathways in both systems were proposed. Soil washing recycling experiments verified the recovered SDS could be reused directly without surfactant supplement and the soil washing efficiency changed insignificantly during three cycles. It indicates UV-C/PDS coupled with soil washing is a promising remediation technology.
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Affiliation(s)
- Zenan Wang
- Department of Environmental Science and Engineering, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
| | - Tiantai Sun
- Department of Environmental Science and Engineering, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
| | - Tian Luo
- Department of Environmental Science and Engineering, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
| | - Xiaolu Shi
- Department of Environmental Science and Engineering, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
| | - Heng Lin
- Department of Environmental Science and Engineering, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
| | - Hui Zhang
- Department of Environmental Science and Engineering, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
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8
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Barbosa Ferreira M, Sales Solano AM, Vieira dos Santos E, Martínez-Huitle CA, Ganiyu SO. Coupling of Anodic Oxidation and Soil Remediation Processes: A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4309. [PMID: 32992528 PMCID: PMC7579085 DOI: 10.3390/ma13194309] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 08/10/2020] [Accepted: 09/22/2020] [Indexed: 01/16/2023]
Abstract
In recent years, due to industrial modernization and agricultural mechanization, several environmental consequences have been observed, which make sustainable development difficult. Soil, as an important component of ecosystem and a key resource for the survival of human and animals, has been under constant contamination from different human activities. Contaminated soils and sites require remediation not only because of the hazardous threat it possess to the environment but also due to the shortage of fresh land for both agriculture and urbanization. Combined or coupled remediation technologies are one of the efficient processes for the treatment of contaminated soils. In these technologies, two or more soil remediation techniques are applied simultaneously or sequentially, in which one technique complements the other, making the treatment very efficient. Coupling anodic oxidation (AO) and soil remediation for the treatment of soil contaminated with organics has been studied via two configurations: (i) soil remediation, ex situ AO, where AO is used as a post-treatment stage for the treatment of effluents from soil remediation process and (ii) soil remediation, in situ AO, where both processes are applied simultaneously. The former is the most widely investigated configuration of the combined processes, while the latter is less common due to the greater diffusion dependency of AO as an electrode process. In this review, the concept of soil washing (SW)/soil flushing (SF) and electrokinetic as soil remediation techniques are briefly explained followed by a discussion of different configurations of combined AO and soil remediation.
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Affiliation(s)
- Maiara Barbosa Ferreira
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal 59078-970, RN, Brazil; (M.B.F.); (A.M.S.S.); (E.V.d.S.)
| | - Aline Maria Sales Solano
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal 59078-970, RN, Brazil; (M.B.F.); (A.M.S.S.); (E.V.d.S.)
| | - Elisama Vieira dos Santos
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal 59078-970, RN, Brazil; (M.B.F.); (A.M.S.S.); (E.V.d.S.)
| | - Carlos A. Martínez-Huitle
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal 59078-970, RN, Brazil; (M.B.F.); (A.M.S.S.); (E.V.d.S.)
| | - Soliu O. Ganiyu
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 2W2, Canada
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9
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Acosta-Santoyo G, Raschitor A, Bustos E, Llanos J, Cañizares P, Rodrigo MA. Electrochemically assisted dewatering for the removal of oxyfluorfen from a coagulation/flocculation sludge. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 258:110015. [PMID: 31929057 DOI: 10.1016/j.jenvman.2019.110015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/29/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
This work focuses on the evaluation of the electrochemical dewatering of sludge obtained in the coagulation of wastes polluted with oxyfluorfen. To do this, sludge samples were treated, aiming not only to reduce the sludge volume, but also to facilitate the degradation of oxyfluorfen contained in the cake via electrolysis with a boron-doped diamond anode. Results show that water can be effectively recovered through three sequential stages. First, a gravity-driven stage, that can recover around 60% of initial volume and where no oxyfluorfen is dragged. Then, a second stage that involves the application of pressure and which accounts for the recuperation of an additional 25% of the total volume of the water removed and in which oxyfluorfen also remained in the cake. Finally, an electrochemical stage, which involves the application of electricity with increasing electric fields (1.0, 2.0, 4.0, and 16.0 V cm-1), accounting for the recovery of the rest of water released and where an electrolytic degradation of oxyfluorfen is obtained, whose extension depends on the electrode configuration used in the electro-dewatering cell. This electrode configuration also influences the retention or loss of oxyfluorfen from the cake, being the optimum choice the placement of the cathode downstream, next to the outlet of the dewatering cell.
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Affiliation(s)
- Gustavo Acosta-Santoyo
- Department of Chemical Engineering, Universidad de Castilla - La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071, Ciudad Real, Spain; Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro s/n, Sanfandila, Pedro Escobedo, Querétaro, Mexico
| | - Alexandra Raschitor
- Department of Chemical Engineering, Universidad de Castilla - La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Erika Bustos
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro s/n, Sanfandila, Pedro Escobedo, Querétaro, Mexico
| | - Javier Llanos
- Department of Chemical Engineering, Universidad de Castilla - La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Pablo Cañizares
- Department of Chemical Engineering, Universidad de Castilla - La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Manuel Andrés Rodrigo
- Department of Chemical Engineering, Universidad de Castilla - La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071, Ciudad Real, Spain.
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10
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Carboneras MB, Rodrigo MA, Canizares P, Villasenor J, Fernandez-Morales FJ. Removal of oxyfluorfen from polluted effluents by combined bio-electro processes. CHEMOSPHERE 2020; 240:124912. [PMID: 31574437 DOI: 10.1016/j.chemosphere.2019.124912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
In this work, the combination of biological and electrochemical processes to mineralize oxyfluorfen has been studied. First, an acclimatized mixed-culture biological treatment was used to degrade the biodegradable fraction of the pesticide, reaching up to 90% removal. After that, the non-biodegraded fraction was oxidised by electrolysis using boron-doped diamond as the anode. The results showed that the electrochemical technique was able to completely mineralize the residual pollutants. The study of the influence of the supporting electrolyte on the electrochemical process showed that the trace mineral solution used in the biological treatment was enough to completely mineralize the oxyfluorfen, resulting in total organic carbon removal rates that were well-fitted by a first-order model with a kinetic constant of 0.91 h-1. However, the first-order degradation rate increased approximately 20% when Na2SO4 was added as supporting electrolyte, reaching a degradation rate of 1.16 h-1 with a power consumption that was approximately 70% lower.
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Affiliation(s)
- M B Carboneras
- Department of Chemical Engineering, University of Castilla-La Macha, ITQUIMA, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - M A Rodrigo
- Department of Chemical Engineering, University of Castilla-La Macha, ITQUIMA, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - P Canizares
- Department of Chemical Engineering, University of Castilla-La Macha, ITQUIMA, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - J Villasenor
- Department of Chemical Engineering, University of Castilla-La Macha, ITQUIMA, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain
| | - F J Fernandez-Morales
- Department of Chemical Engineering, University of Castilla-La Macha, ITQUIMA, Avenida Camilo José Cela s/n, 13071, Ciudad Real, Spain.
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11
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Karaçali A, Muñoz-Morales M, Kalkan S, Körbahti BK, Saez C, Cañizares P, Rodrigo MA. A comparison of the electrolysis of soil washing wastes with active and non-active electrodes. CHEMOSPHERE 2019; 225:19-26. [PMID: 30856471 DOI: 10.1016/j.chemosphere.2019.02.175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 02/23/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
A comparison between the performance of electrolysis of three different soil-washing wastes with platinum and boron doped diamond (BDD) anodes is carried out in this work. Results demonstrate that the treatment is more efficient with BDD for perchloroethylene and clopyralid but not for the case of lindane, because in this case there is a competitive oxidation between lindane and Sodium Dodecyl Sulfate used to extract this pollutant from soil. First order kinetics are observed in each compound with higher removal at the early stages and generally better results are obtained when using BDD as anode. The evolution of pH and a voltammetry study indicate a higher direct oxidation rate in the case of platinum and more importance of hydroxyl radical mediated processes with diamond anodes. Similar speciation is obtained during the electro-oxidation using BDD and platinum electrodes although the concentration of intermediates vary significantly.
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Affiliation(s)
- Atakan Karaçali
- Department of Chemical Engineering, Faculty of Engineering, Mersin University, 33343, Mersin, Turkey
| | - Martin Muñoz-Morales
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Sabri Kalkan
- Department of Occupational Health and Safety, Vocational School, Toros University, 33140, Mersin, Turkey
| | - Bahadir K Körbahti
- Department of Chemical Engineering, Faculty of Engineering, Mersin University, 33343, Mersin, Turkey
| | - Cristina Saez
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Pablo Cañizares
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Manuel A Rodrigo
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universidad de Castilla La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain.
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12
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Trellu C, Chakraborty S, Nidheesh PV, Oturan MA. Environmental Applications of Boron‐Doped Diamond Electrodes: 2. Soil Remediation and Sensing Applications. ChemElectroChem 2019. [DOI: 10.1002/celc.201801877] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Clément Trellu
- Université Paris-EstLaboratoire Géomatériaux et Environnement (LGE), EA 4508, UPEM 5 Bd Descartes, 77454 Marne-la-Vallée Cedex 2 France
| | - Shampa Chakraborty
- CSIR-National Environmental Engineering Research Institute Nagpur, Maharashtra India
| | - P. V. Nidheesh
- CSIR-National Environmental Engineering Research Institute Nagpur, Maharashtra India
| | - Mehmet A. Oturan
- Université Paris-EstLaboratoire Géomatériaux et Environnement (LGE), EA 4508, UPEM 5 Bd Descartes, 77454 Marne-la-Vallée Cedex 2 France
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13
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Martín de Vidales MJ, Castro MP, Sáez C, Cañizares P, Rodrigo MA. Radiation-assisted electrochemical processes in semi-pilot scale for the removal of clopyralid from soil washing wastes. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.04.074] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Carboneras MB, Villaseñor J, Fernández-Morales FJ, Rodrigo MA, Cañizares P. Biological treatment of wastewater polluted with an oxyfluorfen-based commercial herbicide. CHEMOSPHERE 2018; 213:244-251. [PMID: 30223129 DOI: 10.1016/j.chemosphere.2018.09.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/24/2018] [Accepted: 09/09/2018] [Indexed: 06/08/2023]
Abstract
Fluoxil-24 is a commercial herbicide based on oxyfluorfen (a hazardous non-soluble organochlorinated compound) and additional compounds used as solvents. The aim of this work is to study the biotreatability of this commercial herbicide in water through batch experiments performed at different temperatures (15, 20, 25 and 30 °C) and initial concentrations (85, 150, 300 and 500 mg L-1 of oxyfluorfen). Activated sludge from an oil refinery wastewater treatment plant was acclimated and used for biodegradation experiments. Two main mechanisms, volatilization and biodegradation, were observed to be responsible of the herbicide removal. Fluoxil-24 removal efficiencies between approximately 40% and 80% were reached after 70 h, depending on the conditions used, and oxyfluorfen was not completely removed. Regarding the influence of the temperature, thermal inhibition problems appeared at 30 °C, and the volatilization rate of solvents increased, causing oxyfluorfen to become unavailable for microorganisms. An increase of herbicide initial concentration did not clearly affect the herbicide removal efficiency, whereas it negatively affected the biological mechanism. The experimental results were fitted to a mathematical model that included both simultaneous mechanisms of volatilization and Monod biodegradation kinetics. The model was able to predict the experimental results, and the calculated model parameters confirmed the effect of the variables under study.
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Affiliation(s)
- María Belén Carboneras
- Chemical Engineering Department, Research Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla- La Mancha, 13071, Ciudad Real, Spain.
| | - José Villaseñor
- Chemical Engineering Department, Research Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla- La Mancha, 13071, Ciudad Real, Spain
| | - Francisco Jesús Fernández-Morales
- Chemical Engineering Department, Research Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla- La Mancha, 13071, Ciudad Real, Spain
| | - Manuel Andrés Rodrigo
- Chemical Engineering Department, Faculty of Chemical Sciences and Technology, University of Castilla- La Mancha, 13071, Ciudad Real, Spain
| | - Pablo Cañizares
- Chemical Engineering Department, Faculty of Chemical Sciences and Technology, University of Castilla- La Mancha, 13071, Ciudad Real, Spain
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15
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Rodríguez M, Muñoz-Morales M, Perez JF, Saez C, Cañizares P, Barrera-Díaz CE, Rodrigo MA. Toward the Development of Efficient Electro-Fenton Reactors for Soil Washing Wastes through Microfluidic Cells. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02215] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Rodríguez
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón
intersección Paseo Tollocan S/N, C.P. Toluca, Estado de México 50120, México
| | - M. Muñoz-Morales
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, Ciudad Real, 13005, Spain
| | - J. F. Perez
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, Ciudad Real, 13005, Spain
| | - C. Saez
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, Ciudad Real, 13005, Spain
| | - P. Cañizares
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, Ciudad Real, 13005, Spain
| | - C. E. Barrera-Díaz
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón
intersección Paseo Tollocan S/N, C.P. Toluca, Estado de México 50120, México
| | - M. A. Rodrigo
- Chemical Engineering Department, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, Ciudad Real, 13005, Spain
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16
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Zhang D, Li M, Gao K, Li J, Yan Y, Liu X. Physical and chemical mechanism underlying ultrasonically enhanced hydrochloric acid leaching of non-oxidative roasting of bastnaesite. ULTRASONICS SONOCHEMISTRY 2017; 39:774-781. [PMID: 28733006 DOI: 10.1016/j.ultsonch.2017.05.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/12/2017] [Accepted: 05/13/2017] [Indexed: 06/07/2023]
Abstract
In this study, we investigated an alternative to the conventional hydrochloric acid leaching of roasted bastnaesite. The studies suggested that the rare earth oxyfluorides in non-oxidatively roasted bastnaesite can be selectively leached only at elevated temperatures Further, the Ce(IV) in oxidatively roasted bastnaesite does not leach readily at low temperatures, and it is difficult to induce it to form a complex with F- ions in order to increase the leaching efficiency. Moreover, it is inevitably reduced to Ce(III) at elevated temperatures. Thus, the ultrasonically-assisted hydrochloric acid leaching of non-oxidatively roasted bastnaesite was studied in detail, including, the effects of several process factors and the, physical and chemical mechanisms underlying the leaching process. The results show that the leaching rate for the ultrasonically assisted process at 55°C (65% rare earth oxides) is almost the same as that for the conventional leaching process at 85°C. Based on the obtained results, it is concluded that ultrasonic cavitation plays a key role in the proposed process, resulting not only in a high shear stress, which damages the solid surface, but also in the formation of hydroxyl radicals (OH) and hydrogen peroxide (H2O2). Standard electrode potential analysis and experimental results indicate that Ce(III) isoxidized by the hydroxyl radicals to Ce(IV), which can be leached with F- ions in the form of a complex, and that the Ce(IV) can subsequently be reduced to Ce(III) by the H2O2. This prevents the Cl- ions in the solution from being oxidized to form chlorine. These results imply that the ultrasonically-assisted process can be used for the leaching of non-oxidatively roasted bastnaesite at low temperatures in the absence of a reductant.
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Affiliation(s)
- Dongliang Zhang
- School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Mei Li
- School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, Inner Mongolia University of Science and Technology, Baotou 014010, China; School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China.
| | - Kai Gao
- School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Jianfei Li
- Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, Inner Mongolia University of Science and Technology, Baotou 014010, China; School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Yujun Yan
- Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, Inner Mongolia University of Science and Technology, Baotou 014010, China; School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Xingyu Liu
- Inner Mongolia Key Laboratory of Rare Earth Hydrometallurgy and Light Rare Earth Application, Inner Mongolia University of Science and Technology, Baotou 014010, China; School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
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17
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Comparative electrochemical degradation of the herbicide tebuthiuron using a flow cell with a boron-doped diamond anode and identifying degradation intermediates. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Chair K, Bedoui A, Bensalah N, Sáez C, Fernández-Morales FJ, Cotillas S, Cañizares P, Rodrigo MA. Treatment of Soil-Washing Effluents Polluted with Herbicide Oxyfluorfen by Combined Biosorption–Electrolysis. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04977] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Khaoula Chair
- Department
of Chemistry, Faculty of Sciences of Gabes, University of Gabes, Gabes, Tunisia
| | - Ahmed Bedoui
- Department
of Chemistry, Faculty of Sciences of Gabes, University of Gabes, Gabes, Tunisia
| | - Nasr Bensalah
- Department
of Chemistry and Earth Sciences, College of Arts and Science, Qatar University, 2713 Doha, Qatar
| | - Cristina Sáez
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universtiy of Castilla-La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071 Ciudad Real, Spain
| | - Francisco J. Fernández-Morales
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universtiy of Castilla-La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071 Ciudad Real, Spain
| | - Salvador Cotillas
- Department
of Chemical Engineering, School of Industrial Engineering, University of Castilla-La Mancha, Campus Universitario s/n, 02071 Albacete, Spain
| | - Pablo Cañizares
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universtiy of Castilla-La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071 Ciudad Real, Spain
| | - Manuel A. Rodrigo
- Department of Chemical Engineering, Faculty of Chemical Sciences & Technologies, Universtiy of Castilla-La Mancha, Enrique Costa Building, Campus Universitario s/n, 13071 Ciudad Real, Spain
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