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Rubio JA, Garcia-Morales JL, Romero LI, Fernandez-Morales FJ. Modelization of anaerobic processes during co-digestion of slowly biodegradable substrates. Chemosphere 2020; 250:126222. [PMID: 32105857 DOI: 10.1016/j.chemosphere.2020.126222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/22/2020] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
The influence of the soluble substrates over the anaerobic processes has been extensively investigated, but little is known about the effects of particulate substrate. The biodegradation of these substrates starts with the hydrolytic step, this process is slower than the other ones involved in the biodegradation of particulate substrates and usually becomes the rate-limiting step. This study investigate the effect of the initial total solids (TS) concentration on the anaerobic co-digestion of two slowly biodegradable organic substrates. The wastes mixtures were prepared at different dilutions in the range from 10% to 28% TS. From these experiments it was observed that as TS concentration increased, the methane production decreased. These results were modelled and it was observed that neither hydrolysis nor fermentation stages controlled the methane production rate. Being a substrate inhibition event experienced at the methanogenic stage the responsible of the lower methane production when operating at high TS concentrations.
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Affiliation(s)
- J A Rubio
- University of Cadiz, Environmental Technologies Department, Faculty of Marine and Environmental Sciences, Institute of Viticulture and Agri-Food Research (IVAGRO), International Campus of Excellence (ceiA3), 11510, Puerto Real, Cádiz, Spain
| | - J L Garcia-Morales
- University of Cadiz, Environmental Technologies Department, Faculty of Marine and Environmental Sciences, Institute of Viticulture and Agri-Food Research (IVAGRO), International Campus of Excellence (ceiA3), 11510, Puerto Real, Cádiz, Spain
| | - L I Romero
- University of Cadiz, Chemical Engineering and Food Technology Department, Faculty of Science, Institute of Viticulture and Agri-Food Research (IVAGRO), International Campus of Excellence (ceiA3), 11510, Puerto Real, Cádiz, Spain
| | - F J Fernandez-Morales
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N., 13071, Ciudad Real, Spain.
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2
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Carboneras Contreras MB, Fourcade F, Assadi A, Amrane A, Fernandez-Morales FJ. Electro Fenton removal of clopyralid in soil washing effluents. Chemosphere 2019; 237:124447. [PMID: 31356995 DOI: 10.1016/j.chemosphere.2019.124447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
The removal of a commercial herbicide, based on clopyralid, by means of Electro-Fenton (EF) was studied using a soil washing effluent obtained using synthetic ground water as washing fluid. From the results, it was observed that the degradation and mineralization yields of clopyralid were high, even without the addition of supporting electrolyte. The groundwater could be then used as a sustainable supporting electrolyte. The influence of the minerals constituents, the current and the ferrous ions regeneration was evaluated. The highest hydrogen peroxide production was achieved working at 200 mA but regeneration of ferrous ions was not efficient at this current. Iodide ions were one of the main responsible in the EF efficiency decrease due to their reaction with the produced hydrogen peroxide. Electrochemical study proved that clopyralid was not electroactive and that its degradation was mainly due to radical oxidation. Long duration electrolysis carried out at 200 mA in groundwater provided an improvement of the solution biodegradability after 480 min that can be linked to a significant increase in the carboxylic acids production. These results support the feasibility of applying an EF process in order to carry out a subsequent biological mineralization.
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Affiliation(s)
- María Belén Carboneras Contreras
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France
| | - Florence Fourcade
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France.
| | - Aymen Assadi
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France
| | - Abdeltif Amrane
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, F-35000, Rennes, France
| | - Francisco Jesus Fernandez-Morales
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain.
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Mateo S, Mascia M, Fernandez-Morales FJ, Rodrigo MA, Di Lorenzo M. Assessing the impact of design factors on the performance of two miniature microbial fuel cells. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.193] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mateo S, Cañizares P, Fernandez-Morales FJ, Rodrigo MA. A Critical View of Microbial Fuel Cells: What Is the Next Stage? ChemSusChem 2018; 11:4183-4192. [PMID: 30358130 DOI: 10.1002/cssc.201802187] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/19/2018] [Indexed: 06/08/2023]
Abstract
Microbial fuel cells (MFCs) have garnered interest from the scientific community since the beginning of this century and this has caused a considerable increase in the scientific production of MFCs. However, the ability of MFCs to generate power has not increased considerably within this timeframe. In recent years, the power generated by MFCs has remained at an almost contact level owing to difficulties in the scale-up of the technology and thus the application of MFCs for powering systems with high energy demands will not be fully developed, at least within a short temporal horizon. Scale-up by increasing the size of the electrodes has failed, because of the wrong assumption that a linear function describes the relationship between the amount of power generated by a MFC and its size. However, more efficient energy generation upon working with small MFCs has been described. This has led to a new approach for scaling up on the basis of miniaturization and replication. Then, MFCs can be connected electrically in series to increase the overall potential and in parallel to increase the overall current. However, cell-voltage reversal and ionic short-circuit issues must be solved for this approach to be successful. Nowadays, the applicability of MFC technology in wastewater treatment does not make any sense in light of the power levels reached, despite the fact that MFCs were seen as a paramount opportunity less than a decade ago. However, MFCs can be used for wastewater treatment with coupled energy generation, as well as for other technologies such as biosensors and biologically inspired robots.
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Affiliation(s)
- Sara Mateo
- University of Castilla-La Mancha, Faculty of Chemical Sciences & Technologies, Chemical Engineering Department, Avenida Camilo José Cela, 12., 13071, Ciudad Real, Spain
| | - Pablo Cañizares
- University of Castilla-La Mancha, Faculty of Chemical Sciences & Technologies, Chemical Engineering Department, Avenida Camilo José Cela, 12., 13071, Ciudad Real, Spain
| | - Francisco Jesus Fernandez-Morales
- University of Castilla-La Mancha, Faculty of Chemical Sciences & Technologies, Chemical Engineering Department, Avenida Camilo José Cela, 12., 13071, Ciudad Real, Spain
| | - Manuel A Rodrigo
- University of Castilla-La Mancha, Faculty of Chemical Sciences & Technologies, Chemical Engineering Department, Avenida Camilo José Cela, 12., 13071, Ciudad Real, Spain
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Mateo S, Cañizares P, Rodrigo MA, Fernandez-Morales FJ. Driving force behind electrochemical performance of microbial fuel cells fed with different substrates. Chemosphere 2018; 207:313-319. [PMID: 29803880 DOI: 10.1016/j.chemosphere.2018.05.100] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
The performance of miniaturized microbial fuel cells operating with five different substrates (acetate, lactate, glucose and octanoate) were studied with the aim to identify the reason for its different performance. In all cases, the COD removal rate was about 650 mg COD L-1 d-1. However, the bio-electrochemical performance of the MFC was very different, showing the MFC fed with acetate the best performance: 20 A m-2 as maximum current density, 2 W m-2 of maximum power density, 0.376 V of OCV and 12.6% of CE. In addition, the acetate showed the best bio-electrochemical performance in the polarization curves and cyclic voltammetries. These polarization curves were modelled and the key to explain the better electrical performance of acetate was its lower ohmic losses. When working with acetate, its ohmic losses were one log-unit below those attained by the other substrates. These lower ohmic losses were not associated to the electrolyte conductivity of the fuel but to the lower ohmic loses of the biofilm generated.
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Affiliation(s)
- Sara Mateo
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N. 13071 Ciudad Real, Spain
| | - Pablo Cañizares
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N. 13071 Ciudad Real, Spain
| | - Manuel Andrés Rodrigo
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N. 13071 Ciudad Real, Spain
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Drewnowski J, Remiszewska-Skwarek A, Fernandez-Morales FJ. Model based evaluation of plant improvement at a large wastewater treatment plant (WWTP). J Environ Sci Health A Tox Hazard Subst Environ Eng 2018; 53:669-675. [PMID: 29465297 DOI: 10.1080/10934529.2018.1438821] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In this work, the effect of the improvement carried out at a large-scale wastewater treatment plant (WWTP) was evaluated, by means of modelling works, with the aim to determine the influence of the modernization over the process performance. After modernization, the energy consumption due to the aeration decreased about a 20% maintaining the effluent quality. In order to double-check the good effluent quality, modelling works were carried out at the full-scale plant. After calibration, the model was applied to the upgraded full-scale plant obtaining deviations lower than 10%. Then, the performance of the main biochemical processes was evaluated in terms of oxygen uptake rate (OUR), ammonia uptake rate (AUR), and chemical oxygen demand (COD) consumption. The rate of the main processes depending on the aeration, that is OUR and AUR, were about 22 gO2/(kg VSS·h) and 2.9 gN/(kg VSS·h), respectively.
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Affiliation(s)
- Jakub Drewnowski
- a Department of Sanitary Engineering , Faculty of Civil and Environmental Engineering, Gdansk University of Technology , Gdansk , Poland
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Carboneras MB, Cañizares P, Rodrigo MA, Villaseñor J, Fernandez-Morales FJ. Improving biodegradability of soil washing effluents using anodic oxidation. Bioresour Technol 2018; 252:1-6. [PMID: 29306123 DOI: 10.1016/j.biortech.2017.12.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/17/2017] [Accepted: 12/18/2017] [Indexed: 06/07/2023]
Abstract
In this work, a combination of electrochemical and biological technologies is proposed to remove clopyralid from Soil Washing Effluents (SWE). Firstly, soil washing was carried out to extract clopyralid from soil. After that, four different anodes-Ir-MMO, Ru-MMO, pSi-BDD and Carbon Felt (CF)-were evaluated in order to increase the biodegradability of the SWE. CF was selected because was the only one able to transform the pesticide to a more biodegradable compounds without completely mineralizing it. Finally, biological oxidation tests were performed to determine the aerobic biodegradability of the SWE generated. From the obtained results, it was observed that at the beginning of the electrolysis the toxicity slightly increased and the biodegradability decreases. However, for electric current charges over 2.5 A·h dm-3 the toxicity drastically decreased, showing an EC50 of 143 mg L-1, and the BOD5/COD ratio increased from 0.02 to 0.23.
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Affiliation(s)
- María Belén Carboneras
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N, 13071 Ciudad Real, Spain
| | - Pablo Cañizares
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N, 13071 Ciudad Real, Spain
| | - Manuel Andrés Rodrigo
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N, 13071 Ciudad Real, Spain
| | - José Villaseñor
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N, 13071 Ciudad Real, Spain
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Carboneras B, Villaseñor J, Fernandez-Morales FJ. Modelling aerobic biodegradation of atrazine and 2,4-dichlorophenoxy acetic acid by mixed-cultures. Bioresour Technol 2017; 243:1044-1050. [PMID: 28764106 DOI: 10.1016/j.biortech.2017.07.089] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/10/2017] [Accepted: 07/17/2017] [Indexed: 06/07/2023]
Abstract
The aim of this work was to study and to model the biodegradation of atrazine and 2,4-dichlorophenoxy acetic acid by aerobic mixed cultures. Slow removal rates were observed when biodegrading atrazine, in spite of the initial concentrations. However, high removal rates were obtained when biodegrading 2,4-D, removing up to 100mg/L in about 2months. Regarding the 2,4-D it must be highlighted that a lag phase appears, being its length proportional to the initial 2,4-D concentration. The biodegradation trends were fitted to a Monod based model and the value of the main parameters determined. In the case of atrazine they were µmax: 0.011 1/d and Y: 0.53g/g and in the case of 2,4-D µmax: 0.071 1/d and Y: 0.44g/g, indicating the higher persistence of atrazine. Once finished the experiments the microbial population was characterized being the major genus Pseudomonas when treating atrazine and Rhodococcus when treating 2,4-D.
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Affiliation(s)
- Belen Carboneras
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N, 13071 Ciudad Real, Spain
| | - José Villaseñor
- University of Castilla-La Mancha, ITQUIMA, Chemical Engineering Department, Avenida Camilo José Cela S/N, 13071 Ciudad Real, Spain
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Mateo S, D’Angelo A, Scialdone O, Cañizares P, Rodrigo MA, Fernandez-Morales FJ. The influence of sludge retention time on mixed culture microbial fuel cell start-ups. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.03.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Mateo S, Rodrigo M, Fonseca LP, Cañizares P, Fernandez-Morales FJ. Oxygen availability effect on the performance of air-breathing cathode microbial fuel cell. Biotechnol Prog 2015; 31:900-7. [DOI: 10.1002/btpr.2106] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/15/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Sara Mateo
- Dept. of Chemical Engineering; University of Castilla-La Mancha, ITQUIMA; Avenida Camilo José Cela S/N. 13071 Ciudad Real Spain
| | - Manuel Rodrigo
- Faculty of Chemical Sciences & Technologies, Chemical Engineering Dept.; University of Castilla-La Mancha; Edificio Enrique Costa Novella, Avenida Camilo José Cela S/N. 13071 Ciudad Real Spain
| | - Luis Pina Fonseca
- IBB-Institute for Biotechnology and Bioengineering; Centre for Biological and Chemical Engineering; Instituto Superior Técnico; 1049-001 Lisbon Portugal
| | - Pablo Cañizares
- Chemical Engineering Dept.; University of Castilla-La Mancha; Edificio Enrique Costa Novella, Avenida Camilo José Cela S/N. 13071 Ciudad Real Spain
| | - Francisco Jesus Fernandez-Morales
- Faculty of Chemical Sciences & Technologies, Chemical Engineering Dept.; University of Castilla-La Mancha; ITQUIMA, Avenida Camilo José Cela S/N. 13071 Ciudad Real Spain
- IBB-Institute for Biotechnology and Bioengineering, Centre for Biological and Chemical Engineering; Instituto Superior Técnico; 1049-001 Lisbon Portugal
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