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Without any doubt, the 21st century has kick-started a great evolution in all aspects of our everyday life
Ana Rita Lado Ribeiro; Jorge Jesus Rodríguez-Chueca; Stefanos Giannakis. Urban and Industrial Wastewater Disinfection and Decontamination by Advanced Oxidation Processes (AOPs): Current Issues and Future Trends. Water 2021, 13, 560 .
AMA StyleAna Rita Lado Ribeiro, Jorge Jesus Rodríguez-Chueca, Stefanos Giannakis. Urban and Industrial Wastewater Disinfection and Decontamination by Advanced Oxidation Processes (AOPs): Current Issues and Future Trends. Water. 2021; 13 (4):560.
Chicago/Turabian StyleAna Rita Lado Ribeiro; Jorge Jesus Rodríguez-Chueca; Stefanos Giannakis. 2021. "Urban and Industrial Wastewater Disinfection and Decontamination by Advanced Oxidation Processes (AOPs): Current Issues and Future Trends." Water 13, no. 4: 560.
In this article, through a natural language processing model and a bibliometric study, a meta-analysis of the scientific production of the 21st century on Fenton and persulfate activation processes is performed. We present the rapidly changing landscape of these processes' know-how over the last years, and we identify the recent topics of interest. First, we queried Elsevier's Scopus data set of articles and patents, and then we used the text-mined author/Scopus keywords to model the respective fields through latent Dirichlet allocation (LDA) topic modeling. The evolution of the topics addressed by Review Papers was used to identify the milestones of each treatment process, and the article-to-patent ratio as a metric of the technology maturity. Overall, our approach indicates that the critical mass of the know-how has been achieved, and following the identification of the critical environmental issues, a significant part of the studies must be become real applications of advanced oxidation processes (AOPs).
Stefanos Giannakis; Sofia Samoili; Jorge Rodríguez-Chueca. A meta-analysis of the scientific literature on (photo)Fenton and persulfate advanced oxidation processes: Where do we stand and where are we heading to? Current Opinion in Green and Sustainable Chemistry 2021, 29, 100456 .
AMA StyleStefanos Giannakis, Sofia Samoili, Jorge Rodríguez-Chueca. A meta-analysis of the scientific literature on (photo)Fenton and persulfate advanced oxidation processes: Where do we stand and where are we heading to? Current Opinion in Green and Sustainable Chemistry. 2021; 29 ():100456.
Chicago/Turabian StyleStefanos Giannakis; Sofia Samoili; Jorge Rodríguez-Chueca. 2021. "A meta-analysis of the scientific literature on (photo)Fenton and persulfate advanced oxidation processes: Where do we stand and where are we heading to?" Current Opinion in Green and Sustainable Chemistry 29, no. : 100456.
Solar disinfection (SODIS) in 2-L bottles is a well-established drinking water treatment technique, suitable for rural, peri-urban, or isolated communities in tropical or sub-tropical climates. In this work, we assess the enlargement of the treatment volume by using cheap, large scale plastic vessels. The bactericidal performance of SODIS and two solar-Fe2+ based enhancements, namely photo-Fenton (light/H2O2/Fe2+) and peroxymonosulfate activation (light/PMS/Fe2+) were assessed in 19-L polycarbonate (PC) and 25-L polyethylene terephthalate (PET) bottles, in ultrapure and real water matrices (tap water, lake Geneva water). Although SODIS always reached total (5-logU) inactivation, under solar light, enhancement by or both Fe2+/H2O2 or Fe2+/PMS was always beneficial and led to an increase in bacterial elimination kinetics, as high as 2-fold in PC and PET bottles with tap water for light/H2O2/Fe2+, and 8-fold in PET bottles with Lake Geneva water. The toxicological safety of the enhancements and their effects on the plastic container materials was assessed using the E-screen assay and the Ames test, after 1-day or 1-week exposure to SODIS, photo-Fenton and persulfate activation. Although the production of estrogenic compounds was observed, we report that no treatment method, duration of exposure or material resulted in estrogenicity risk for humans, and similarly, no mutagenicity risk was measured. In summary, we suggest that SODIS enhancement by either HO•- or SO4•−-based advanced oxidation process is a suitable enhancement of bacterial inactivation in large scale plastic bottles, without any associated toxicity risks.
Paloma Ozores Diez; Stefanos Giannakis; Jorge Rodríguez-Chueca; Da Wang; Bríd Quilty; Rosaleen Devery; Kevin McGuigan; Cesar Pulgarin. Enhancing solar disinfection (SODIS) with the photo-Fenton or the Fe2+/peroxymonosulfate-activation process in large-scale plastic bottles leads to toxicologically safe drinking water. Water Research 2020, 186, 116387 .
AMA StylePaloma Ozores Diez, Stefanos Giannakis, Jorge Rodríguez-Chueca, Da Wang, Bríd Quilty, Rosaleen Devery, Kevin McGuigan, Cesar Pulgarin. Enhancing solar disinfection (SODIS) with the photo-Fenton or the Fe2+/peroxymonosulfate-activation process in large-scale plastic bottles leads to toxicologically safe drinking water. Water Research. 2020; 186 ():116387.
Chicago/Turabian StylePaloma Ozores Diez; Stefanos Giannakis; Jorge Rodríguez-Chueca; Da Wang; Bríd Quilty; Rosaleen Devery; Kevin McGuigan; Cesar Pulgarin. 2020. "Enhancing solar disinfection (SODIS) with the photo-Fenton or the Fe2+/peroxymonosulfate-activation process in large-scale plastic bottles leads to toxicologically safe drinking water." Water Research 186, no. : 116387.
Creativity and innovation are crucial skills to face challenges in economy, environment and social context today, especially next decade with 2030 Agenda for Sustainable Development adopted by all United Nations Member States. European Higher Education System considers STEM studies play a key role to lead the global labor market and address our economic system towards more sustainability and equality model. Innovative educational projects developed at the Universidad Politécinca de Madrid have identified lack of students skills in creativity and innovation to apply challenge based-learning and others methodologies in classrooms. Hovewer Higher Education institutions need a whole approach to include creativity in university curricula (graduate and postgraduate programs), at the same time, professors claim support to embebed innovative methodologies in their subjects. CHET Project is designed as a solid strategy aimed at developing an innovative process to modernization of Higher Education System in Europe. Step by step, the project begins by defining the learning environment, then developing creativity techniques and tools, and finally validating methodologies and processes. All this supported by free access online platform.
César García-Aranda; Agustin Molina-García; María Del Carmen Morillo Balsera; Sandra Martínez-Cuevas; Encarnación Rodríguez Hurtado; Javier Pérez Rodríguez; Jorge Jesús Rodríguez Chueca; Yago Torroja Fungairiño; Manuel Rodríguez Hernández; María González Miquel; Francisco Ismael Díaz Moreno; Emilio José González Gómez; María Del Mar De La Fuente García-Soto; Stefanos Giannakis; Isabel Del Castillo González; Margarita Martínez Núñez; Fernando Blasco Contreras; Pilar Cristina Izquierdo García. Creativity and Innovation Skills in University STEM Education: The CHET Project Approach. 6th International Conference on Higher Education Advances (HEAd'20) 2020, 1 .
AMA StyleCésar García-Aranda, Agustin Molina-García, María Del Carmen Morillo Balsera, Sandra Martínez-Cuevas, Encarnación Rodríguez Hurtado, Javier Pérez Rodríguez, Jorge Jesús Rodríguez Chueca, Yago Torroja Fungairiño, Manuel Rodríguez Hernández, María González Miquel, Francisco Ismael Díaz Moreno, Emilio José González Gómez, María Del Mar De La Fuente García-Soto, Stefanos Giannakis, Isabel Del Castillo González, Margarita Martínez Núñez, Fernando Blasco Contreras, Pilar Cristina Izquierdo García. Creativity and Innovation Skills in University STEM Education: The CHET Project Approach. 6th International Conference on Higher Education Advances (HEAd'20). 2020; ():1.
Chicago/Turabian StyleCésar García-Aranda; Agustin Molina-García; María Del Carmen Morillo Balsera; Sandra Martínez-Cuevas; Encarnación Rodríguez Hurtado; Javier Pérez Rodríguez; Jorge Jesús Rodríguez Chueca; Yago Torroja Fungairiño; Manuel Rodríguez Hernández; María González Miquel; Francisco Ismael Díaz Moreno; Emilio José González Gómez; María Del Mar De La Fuente García-Soto; Stefanos Giannakis; Isabel Del Castillo González; Margarita Martínez Núñez; Fernando Blasco Contreras; Pilar Cristina Izquierdo García. 2020. "Creativity and Innovation Skills in University STEM Education: The CHET Project Approach." 6th International Conference on Higher Education Advances (HEAd'20) , no. : 1.
The total inactivation processes of two pathogenic bacteria, Escherichia coli and Enterococcus sp., by peroxymonosulfate (PMS) activation with CoFe2O4 nanoparticles was studied in real and simulated wastewater matrices. The catalyst was prepared by solvothermal method and characterized by means of powder X-ray diffraction and Transmission Electron Microscopy. It shows an excellent heterogeneous catalytic activity for PMS activation, easy separation, acceptable reusability and negligible leaching. A systematic study for the determination of optima catalyst and PMS dosages (0.05 g/L CoFe2O4 and 0.2 mM PMS) were investigated under UV-A radiation and darkness for an initial bacteria concentration of 106 CFU/mL. Scavenging experiments using methanol and TBA were performed to confirm that both, sulfate (SO4•-) and hydroxyl radicals (HO•), are involved in the inactivation process. A plausible mechanism reaction was proposed for UV-A and darkness and a Double Weibull mathematical model seems to fully describe the kinetic inactivation of both bacteria. The use of low catalyst and PMS concentrations concomitantly to the high efficiency showed for the total inactivation of wild bacteria in darkness makes this process suitable to be the last stage in a full wastewater treatment plant.
J. Rodríguez-Chueca; E. Barahona-García; V. Blanco-Gutiérrez; L. Isidoro-García; A.J. Dos Santos-García. Magnetic CoFe2O4 ferrite for peroxymonosulfate activation for disinfection of wastewater. Chemical Engineering Journal 2020, 398, 125606 .
AMA StyleJ. Rodríguez-Chueca, E. Barahona-García, V. Blanco-Gutiérrez, L. Isidoro-García, A.J. Dos Santos-García. Magnetic CoFe2O4 ferrite for peroxymonosulfate activation for disinfection of wastewater. Chemical Engineering Journal. 2020; 398 ():125606.
Chicago/Turabian StyleJ. Rodríguez-Chueca; E. Barahona-García; V. Blanco-Gutiérrez; L. Isidoro-García; A.J. Dos Santos-García. 2020. "Magnetic CoFe2O4 ferrite for peroxymonosulfate activation for disinfection of wastewater." Chemical Engineering Journal 398, no. : 125606.
The advancement of science has facilitated increase in the human lifespan, reflected in economic and population growth, which unfortunately leads to increased exploitation of resources. This situation entails not only depletion of resources, but also increases environmental pollution, mainly due to atmospheric emissions, wastewater effluents, and solid wastes. In this scenario, it is compulsory to adopt a paradigm change, as far as the consumption of resources by the population is concerned, to achieve a circular economy. The recovery and reuse of resources are key points, leading to a decrease in the consumption of raw materials, waste reduction, and improvement of energy efficiency. This is the reason why the concept of the circular economy can be applied in any industrial activity, including the wastewater treatment sector. With this in view, this review manuscript focuses on demonstrating the challenges and opportunities in applying a circular economy in the water sector. For example, reclamation and reuse of wastewater to increase water resources, by paying particular attention to the risks for human health, recovery of nutrients, or highly added-value products (e.g., metals and biomolecules among others), valorisation of sewage sludge, and/or recovery of energy. Being aware of this situation, in the European, Union 18 out of 27 countries are already reusing reclaimed wastewater at some level. Moreover, many wastewater treatment plants have reached energy self-sufficiency, producing up to 150% of their energy requirements. Unfortunately, many of the opportunities presented in this work are far from becoming a reality. Still, the first step is always to become aware of the problem and work on optimizing the solution to make it possible.
Sonia Guerra-Rodríguez; Paula Oulego; Encarnación Rodríguez; Devendra Narain Singh; Jorge Rodríguez-Chueca. Towards the Implementation of Circular Economy in the Wastewater Sector: Challenges and Opportunities. Water 2020, 12, 1431 .
AMA StyleSonia Guerra-Rodríguez, Paula Oulego, Encarnación Rodríguez, Devendra Narain Singh, Jorge Rodríguez-Chueca. Towards the Implementation of Circular Economy in the Wastewater Sector: Challenges and Opportunities. Water. 2020; 12 (5):1431.
Chicago/Turabian StyleSonia Guerra-Rodríguez; Paula Oulego; Encarnación Rodríguez; Devendra Narain Singh; Jorge Rodríguez-Chueca. 2020. "Towards the Implementation of Circular Economy in the Wastewater Sector: Challenges and Opportunities." Water 12, no. 5: 1431.
An ultraviolet light emitting diode (UV-A LED) system was built to test the capability of performing heterogeneous photocatalysis using TiO2 P25. The LEDs maximum wavelength is 365 nm with an irradiance power of 85 W m−2. The device was tested in batch and continuous (CSTR) mode in a laboratorial scale reactor. The degradation of an agro-industrial wastewater model compound (p-hydroxybenzoic acid, pHBA) was investigated, assessing the effect of different experimental conditions such as pH, pHBA and TiO2 concentration keeping constant the UV-A LEDs power and temperature. The photodegradation of different concentrations of pHBA with [TiO2] = 500 mg L−1, IUV = 85 W m−2 and a T = 21 °C were analysed by pseudo-first order kinetics. The results were applied to the Langmuir-Hinshelwood model yielding kc = 0.885 mg L−1 min−1 and kLH = 0.217 L mg−1. In a comparative experiment the UV-A LEDs system showed faster kinetics (k = 0.0134 min−1) than solar radiation (IUV = 23 W m−2; k = 0.0077 min−1), with [pHBA] = 75 mg L−1 and [TiO2] = 500 mg L−1. The values of the Electric Energy per Order (EEO) = 115 kWh m−3 order−1 and the Specific Applied Energy (ESAE) = 318 kWh mol−1 order−1 were obtained with [TiO2] = 1000 mg L−1 and [pHBA] = 50 mg L−1. Analogous results were obtained ([TiO2] = 500 mg L−1) in a CSTR with a slight decrease in the first order kinetic constant due to the “non-ideal” reactor: from 0.0284 to 0.0158 min−1 and from 0.0143 to 0.00825 min−1 with [pHBA] = 50 mg L−1 and 75 mg L−1, respectively. This work shows that photocatalytic reactors with UV-A LEDs can advantageously replace conventional UV mercury lamps based reactors in the photodegradation of phenolic compounds.
Leonor C. Ferreira; José Ramiro Afonso Fernandes; Jorge Jesús Rodríguez Chueca; José A. Peres; Marco S. Lucas; Pedro B. Tavares. Photocatalytic degradation of an agro-industrial wastewater model compound using a UV LEDs system: kinetic study. Journal of Environmental Management 2020, 269, 110740 .
AMA StyleLeonor C. Ferreira, José Ramiro Afonso Fernandes, Jorge Jesús Rodríguez Chueca, José A. Peres, Marco S. Lucas, Pedro B. Tavares. Photocatalytic degradation of an agro-industrial wastewater model compound using a UV LEDs system: kinetic study. Journal of Environmental Management. 2020; 269 ():110740.
Chicago/Turabian StyleLeonor C. Ferreira; José Ramiro Afonso Fernandes; Jorge Jesús Rodríguez Chueca; José A. Peres; Marco S. Lucas; Pedro B. Tavares. 2020. "Photocatalytic degradation of an agro-industrial wastewater model compound using a UV LEDs system: kinetic study." Journal of Environmental Management 269, no. : 110740.
In the frame of the water circular economy, the reuse of the treated sewage sludge supposes a good action. Nevertheless, the reuse might suppose a human health risk because of the presence of pathogen germs, concentrated in the generated sludge during urban wastewater treatment. For this reason, sludge treatments, conventional or advanced, should be focused on the reduction of fermentation capacity and microorganisms presence. This research assess the microbiological quality of the treated sludge, based on the use of faecal pollution indicators such as total coliforms, Escherichia coli, Enterococcus sp., Pseudomonas sp., Staphylococcus aureus and total mesophilic bacteria, after the application of different digestion treatments, and their final aptitude to be reused. Three different pilot scale plants were used: two anaerobic digestion plants with a volume of 2.75 m3 working in mesophilic (35-37 °C) and thermophilic (55-57 °C) conditions, and hydraulic retention times (HRT) ranging from 5 to 20 days; and a autothermal thermophilic aerobic digestion plant (ATAD) with a volume of treatment of 3.9 m3 working at 55-57 °C for an HRT of 5–15 days. The raw sludge to be treated came from a full-operative WWTP located in the region of Navarra (Spain), laid within Ebro River Basin. It was concluded that both treatments studied obeyed the current European legislation in therms of E. coli concentration and absence of Salmonella spp., being available for agricultural purposes. Considering other microbiological parameters, the anaerobic thermophilic treatment had the best conditions to reduce the Enterococcus sp. concentrations and the aerobic thermophilic treatment was the best one reducing E. coli, being non-significant the influence of HRT to microbial reduction. For this reason, it is strongly recommended the use of both faecal indicators to assess the microbial quality of the treated sludge.
Andrea López; Jorge Rodríguez-Chueca; Rosa Mosteo; Jairo Gómez; Maria P. Ormad. Microbiological quality of sewage sludge after digestion treatment: A pilot scale case of study. Journal of Cleaner Production 2020, 254, 120101 .
AMA StyleAndrea López, Jorge Rodríguez-Chueca, Rosa Mosteo, Jairo Gómez, Maria P. Ormad. Microbiological quality of sewage sludge after digestion treatment: A pilot scale case of study. Journal of Cleaner Production. 2020; 254 ():120101.
Chicago/Turabian StyleAndrea López; Jorge Rodríguez-Chueca; Rosa Mosteo; Jairo Gómez; Maria P. Ormad. 2020. "Microbiological quality of sewage sludge after digestion treatment: A pilot scale case of study." Journal of Cleaner Production 254, no. : 120101.
This research studies the efficiency of Flipped Classroom (FC) and Challenge-Based Learning (CBL) as an innovative methodology to facilitate the learning of concepts involving sustainability and the circular economy by higher education students. This study, conducted as part of various innovative education projects, was applied in different courses (Environmental Management, Environmental Engineering and Industrial Ecology) taught to different engineering majors (Degree in Geomatics and Survey Engineering and Master’s Degree in Chemical Engineering) at the Universidad Politécnica de Madrid (Spain). The main aim is to enhance the environmental competences of students by means of unconventional learning, increasing the motivation, participation and grades of the students in the course. Our results indicate that, in general terms, the students rated the efficiency of the new learning methodologies as satisfactory; however, a more detailed analysis of the results reveals some aspects that need special consideration, such as an assessment of specific and cross-cutting competences, in addition to the lack of previous soft skills, such as teamwork, creativity and work planning.
Jorge Rodríguez-Chueca; Agustin Molina Garcia; Cesar Garcia-Aranda; Javier Perez; Encarnación Rodríguez. Understanding sustainability and the circular economy through flipped classroom and challenge-based learning: an innovative experience in engineering education in Spain. Environmental Education Research 2019, 26, 238 -252.
AMA StyleJorge Rodríguez-Chueca, Agustin Molina Garcia, Cesar Garcia-Aranda, Javier Perez, Encarnación Rodríguez. Understanding sustainability and the circular economy through flipped classroom and challenge-based learning: an innovative experience in engineering education in Spain. Environmental Education Research. 2019; 26 (2):238-252.
Chicago/Turabian StyleJorge Rodríguez-Chueca; Agustin Molina Garcia; Cesar Garcia-Aranda; Javier Perez; Encarnación Rodríguez. 2019. "Understanding sustainability and the circular economy through flipped classroom and challenge-based learning: an innovative experience in engineering education in Spain." Environmental Education Research 26, no. 2: 238-252.
Andrea López; Jorge Rodríguez-Chueca; Rosa Mosteo; Jairo Gómez; E. Rubio; Pilar Goñi; Maria P. Ormad. How does urban wastewater treatment affect the microbial quality of treated wastewater? Process Safety and Environmental Protection 2019, 130, 22 -30.
AMA StyleAndrea López, Jorge Rodríguez-Chueca, Rosa Mosteo, Jairo Gómez, E. Rubio, Pilar Goñi, Maria P. Ormad. How does urban wastewater treatment affect the microbial quality of treated wastewater? Process Safety and Environmental Protection. 2019; 130 ():22-30.
Chicago/Turabian StyleAndrea López; Jorge Rodríguez-Chueca; Rosa Mosteo; Jairo Gómez; E. Rubio; Pilar Goñi; Maria P. Ormad. 2019. "How does urban wastewater treatment affect the microbial quality of treated wastewater?" Process Safety and Environmental Protection 130, no. : 22-30.
In this research, the degradation of seven different micropollutants (MPs) and the formation of their transformation products (TPs) have been assessed during the application of different advanced oxidation processes: photolytic and photocatalytic activation of peroxymonosulfate (PMS) and persulfate (PS). The results were compared with those obtained from the photolytic experiments using hydrogen peroxide (H2O2) as oxidant. A significant abatement of almost all MPs was achieved, even with very low UV-C contact time (9 and 28 s). The degradation of atenolol (ATN) and caffeine (CFN) ranged from 84 to 100% with a dose of 0.5 mM of any oxidant. The efficiencies for bisphenol-A (BPA), carbamazepine (CBZ), diclofenac (DCF), ibuprofen (IBP), and sulfamethoxazole (SMX) varied depending on the oxidation system and operating conditions (oxidant dose and UV-C contact time), leading to the photolysis of PMS to higher efficiencies than PS and H2O2. In all cases, the abatement of MPs ranged from 63 to 83%, even with the lowest PMS dosage. Moreover, the addition of Fe(II) as a catalyst enhanced the removal efficiency, reaching almost total removal, especially over CBZ, DCF, and IBP. The Dissolved Organic Carbon (DOC) removal ranged between 44 and 62%, suggesting the transformation of MPs in intermediate compounds. The identification of transformation products was carried out for each micropollutant and each oxidation treatment, being observed some transformation products specific of oxidation by sulfate radicals. For example, m/z 165.0432 only appeared after PMS/Fe(II)/UV-C on the degradation of BFA, m/z 251.082 appeared after photolytic activation of PMS and PS on CBZ removal, and m/z 128.0452 was observed after any sulfate radical oxidation treatment, but not after photolysis of H2O2.
Jorge Rodríguez-Chueca; Carmen Garcia-Cañibano; Marco Sarro; Ángel Encinas; Claudio Medana; Debora Fabbri; Paola Calza; Javier Marugán. Evaluation of transformation products from chemical oxidation of micropollutants in wastewater by photoassisted generation of sulfate radicals. Chemosphere 2019, 226, 509 -519.
AMA StyleJorge Rodríguez-Chueca, Carmen Garcia-Cañibano, Marco Sarro, Ángel Encinas, Claudio Medana, Debora Fabbri, Paola Calza, Javier Marugán. Evaluation of transformation products from chemical oxidation of micropollutants in wastewater by photoassisted generation of sulfate radicals. Chemosphere. 2019; 226 ():509-519.
Chicago/Turabian StyleJorge Rodríguez-Chueca; Carmen Garcia-Cañibano; Marco Sarro; Ángel Encinas; Claudio Medana; Debora Fabbri; Paola Calza; Javier Marugán. 2019. "Evaluation of transformation products from chemical oxidation of micropollutants in wastewater by photoassisted generation of sulfate radicals." Chemosphere 226, no. : 509-519.
This study explores the enhancement of UV-C tertiary treatment by sulfate radical based Advanced Oxidation Processes (SR-AOPs), including photolytic activation of peroxymonosulfate (PMS) and persulfate (PS) and their photocatalytic activation using Fe(II). Their efficiency was assessed both for the inactivation of microorganisms and the removal or micropollutants (MPs) in real wastewater treatment plant effluents. Under the studied experimental range (UV-C dose 5.7 to 57 J/L; UV-C contact time 3 to 28 s), the photolysis of PMS and PS (0.01 mM) increased up to 25% the bacterial removal regarding to UV-C system. The photolytic activation of PMS led to the total inactivation of bacteria (≈ 5.70 log) with the highest UV-C dose (57 J/L). However, these conditions were insufficient to remove the MPs, being required oxidant’s dosages of 5 mM to remove above 90% of carbamazepine, diclofenac, atenolol and triclosan. The best efficiencies were achieved by the combination of PMS or PS with Fe(II), leading to the total removal of the MPs using a low UV-C dosage (19 J/L), UV-C contact time (9 s) and reagent’s dosages (0.5 mM). Finally, high mineralization was reached (>50%) with photocatalytic activation of PMS and PS even with low reagent’s dosages.
Jorge Jesús Rodríguez Chueca; C. García-Cañibano; R.-J. Lepistö; Á. Encinas; Jukka Pellinen; J. Marugán. Intensification of UV-C tertiary treatment: Disinfection and removal of micropollutants by sulfate radical based Advanced Oxidation Processes. Journal of Hazardous Materials 2019, 372, 94 -102.
AMA StyleJorge Jesús Rodríguez Chueca, C. García-Cañibano, R.-J. Lepistö, Á. Encinas, Jukka Pellinen, J. Marugán. Intensification of UV-C tertiary treatment: Disinfection and removal of micropollutants by sulfate radical based Advanced Oxidation Processes. Journal of Hazardous Materials. 2019; 372 ():94-102.
Chicago/Turabian StyleJorge Jesús Rodríguez Chueca; C. García-Cañibano; R.-J. Lepistö; Á. Encinas; Jukka Pellinen; J. Marugán. 2019. "Intensification of UV-C tertiary treatment: Disinfection and removal of micropollutants by sulfate radical based Advanced Oxidation Processes." Journal of Hazardous Materials 372, no. : 94-102.
This research demonstrates the feasibility to enhance solar disinfection (SODIS) treatment by addition of peroxymonosulfate (PMS) and peroxydisulfate (PDS) by the generation of sulfate (and hydroxyl) radicals through different activation routes. The different promoters were i) sunlight irradiation, ii) mild heat (40 °C), and iii) μM amounts of Fe2+, all present during actual field SODIS experiments, or voluntarily added alongside PMS/PDS. In a first approach, the promoters were studied separately, in pairs and finally all together in a combined process (CP). In all the cases, PMS showed a higher efficiency than PDS in E. coli removal, requiring lower concentration and a faster reaction time towards total bacterial inactivation. Therefore, the combined process (Oxidant/Fe2+/Sunlight/40 °C) reached total bacterial inactivation (6-logU) in 30 min when PMS was used, while it took twice as long with the PDS. These effects can be further enhanced when PMS with H2O2 is used, and barely 20 min are needed for complete bacterial removal. Besides total disinfection, the combined processes were suitable to eliminate micropollutants in μg/L concentration (drugs, pesticides, etc.) during solar treatment. Finally, the efficiency of the treatment methods was successfully tested in a lake water matrix, in a feasibility assay as a potential drinking water treatment method. The economic analysis highly supports the use of these oxidants. Although the use of PMS or PDS increases the cost of treatment, it is not mandatory to add other reagents or external activators; iron is ubiquitous in natural water and can act as activator, while during SODIS sunlight irradiation can provide UV and mild water heating, hence act as an effective disinfection method. Finally, a mechanistic proposal for the combined processes is given, as an overview of the occurring reactions leading to bacterial inactivation.
Jorge Rodríguez-Chueca; Stefanos Giannakis; Miloch Marjanovic; Mona Kohantorabi; Mohammad Reza Gholami; Dominique Grandjean; Luiz Felippe de Alencastro; César Pulgarín. Solar-assisted bacterial disinfection and removal of contaminants of emerging concern by Fe2+-activated HSO5- vs. S2O82- in drinking water. Applied Catalysis B: Environmental 2019, 248, 62 -72.
AMA StyleJorge Rodríguez-Chueca, Stefanos Giannakis, Miloch Marjanovic, Mona Kohantorabi, Mohammad Reza Gholami, Dominique Grandjean, Luiz Felippe de Alencastro, César Pulgarín. Solar-assisted bacterial disinfection and removal of contaminants of emerging concern by Fe2+-activated HSO5- vs. S2O82- in drinking water. Applied Catalysis B: Environmental. 2019; 248 ():62-72.
Chicago/Turabian StyleJorge Rodríguez-Chueca; Stefanos Giannakis; Miloch Marjanovic; Mona Kohantorabi; Mohammad Reza Gholami; Dominique Grandjean; Luiz Felippe de Alencastro; César Pulgarín. 2019. "Solar-assisted bacterial disinfection and removal of contaminants of emerging concern by Fe2+-activated HSO5- vs. S2O82- in drinking water." Applied Catalysis B: Environmental 248, no. : 62-72.
This work assesses the potential activation of peroxymonosulfate (PMS, HSO5−) and persulfate (PS, S2O82−) by different homogeneous iron species, FeSO4 and Fe(III)-citrate and heterogeneous Fe2O3 and nano zero valent iron particles (nZVI), to generate sulfate radicals for inactivation of wild bacteria strains (Escherichia coli and Enterococcus sp.) spiked in simulated wastewater effluents. The effectiveness of each iron source as activator was studied in combination with UV-A radiation at natural pH of water (≈ 7.2) using millimolar doses of oxidants (0.5 mM) at different oxidant:iron molar ratio (1:1 and 1:2). In all cases, the addition of iron enhanced the efficiency of the treatments compared to those carried out without it (PMS/UV-A and PS/UV-A); however, significant differences were evidenced depending on the type of bacteria, oxidant and iron specie. For instance, Escherichia coli was reduced (5-log) below the limit of detection (1 CFU/mL) within 2 to15 min by activation of PMS and PS with all the iron species evaluated By contrast, under analogous operating conditions the efficiency was notably lower for Enterococcus sp. In this case, it is worth mentioning the notable efficiency through the use of Fe(III)-citrate, which allowed to attained a 3.50-log removal of Enterococcus sp. after 90 minutes, in contrast to the low reduction (1.8-log) attained with FeSO4. On the other hand, heterogeneous iron species showed an efficiency for bacteria inactivation comparable in most cases to that of homogeneous iron sources. Taking into consideration the potential advantages of heterogeneous catalysts, as for example the recovery and reuse of the catalyst thus reducing the operating costs, the obtained results are encouraging. For instance, E.coli population was removed below the detection limit (5-log) in less than 5 min with both Fe2O3 and ZVI, whereas a 2-log decrease of Enterococcus sp. was attained after 90 min of treatment, even without PMS. Finally, it was assessed the recovery and re-use of ZVI particles. According to X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM) analysis, the reaction conditions induced a progressive fading of the core-shell structure of nZVI particles, with a decrease of the efficiency for bacteria inactivation in subsequent uses. As an example, E.coli is reduced in 5-log in 15 minutes in the first use, and 4.70-log in 90 minutes with the third use of ZVI.
Jorge Rodríguez-Chueca; Sonia Guerra-Rodríguez; Julia M. Raez; María-José López-Muñoz; Encarnación Rodríguez. Assessment of different iron species as activators of S2O82- and HSO5- for inactivation of wild bacteria strains. Applied Catalysis B: Environmental 2019, 248, 54 -61.
AMA StyleJorge Rodríguez-Chueca, Sonia Guerra-Rodríguez, Julia M. Raez, María-José López-Muñoz, Encarnación Rodríguez. Assessment of different iron species as activators of S2O82- and HSO5- for inactivation of wild bacteria strains. Applied Catalysis B: Environmental. 2019; 248 ():54-61.
Chicago/Turabian StyleJorge Rodríguez-Chueca; Sonia Guerra-Rodríguez; Julia M. Raez; María-José López-Muñoz; Encarnación Rodríguez. 2019. "Assessment of different iron species as activators of S2O82- and HSO5- for inactivation of wild bacteria strains." Applied Catalysis B: Environmental 248, no. : 54-61.
Industrial activity is one of the most important sources of water pollution. Yearly, tons of non-biodegradable organic pollutants are discharged, at the least, to wastewater treatment plants. However, biological conventional treatments are unable to degrade them. This research assesses the efficiency of photocatalytic activation of peroxymonosulfate (PMS) by two different iron species (FeSO4 and Fe3+-citrate) and TiO2. These substances accelerate methylene blue removal by the generation of hydroxyl and sulfate radicals. The required pH and molar ratios PMS:Fe are crucial variables in treatment optimization. The kinetic removal is reduced by the appearance of scavenger reactions in acidic and basic conditions, as well as by the excess of PMS or iron. The best performance is achieved using an Fe3+-citrate as an iron catalyst, reaching the total removal of methylene blue after 15 min of reaction, with a molar ratio of 3.25:1 (1.62 mM of PMS and 0.5 mM Fe3+-citrate). Fe3+-citrate reached higher methylene blue removal than Fe2+ as a consequence of the photolysis of Fe3+-citrate. This photolysis generates H2O2 and a superoxide radical, which together with hydroxyl and sulfate radicals from PMS activation attack methylene blue, degrading it twice as fast as Fe2+ (0.092 min−1 with Fe2+ and 0.188 min−1 with Fe3+-citrate). On the other hand, a synergistic effect between PMS and titanium dioxide (TiO2) was observed (SPMS/TiO2/UV-A = 1.79). This synergistic effect is a consequence of PMS activation by reaction with the free electron on the surface of TiO2. No differences were observed by changing the molar ratio (1.04:1; 0.26:1 and 0.064:1 PMS:TiO2), reaching total removal of methylene blue after 80 min of reaction.
Jorge Rodríguez-Chueca; Esther Alonso; Devendra Narain Singh. Photocatalytic Mechanisms for Peroxymonosulfate Activation through the Removal of Methylene Blue: A Case Study. International Journal of Environmental Research and Public Health 2019, 16, 198 .
AMA StyleJorge Rodríguez-Chueca, Esther Alonso, Devendra Narain Singh. Photocatalytic Mechanisms for Peroxymonosulfate Activation through the Removal of Methylene Blue: A Case Study. International Journal of Environmental Research and Public Health. 2019; 16 (2):198.
Chicago/Turabian StyleJorge Rodríguez-Chueca; Esther Alonso; Devendra Narain Singh. 2019. "Photocatalytic Mechanisms for Peroxymonosulfate Activation through the Removal of Methylene Blue: A Case Study." International Journal of Environmental Research and Public Health 16, no. 2: 198.
High oxidation potential as well as other advantages over other tertiary wastewater treatments have led in recent years to a focus on the development of advanced oxidation processes based on sulfate radicals (SR-AOPs). These radicals can be generated from peroxymonosulfate (PMS) and persulfate (PS) through various activation methods such as catalytic, radiation or thermal activation. This review manuscript aims to provide a state-of-the-art overview of the different methods for PS and PMS activaton, as well as the different applications of this technology in the field of water and wastewater treatment. Although its most widespread application is the elimination of micropollutants, its use for the disinfection of wastewater is gaining increasing interest. In addition, the possibility of combining this technology with ultrafiltration membranes to improve the water quality and lifespan of the membranes has also been discussed. Finally, a brief economic analysis of this technology has been undertaken and the different attempts made to implement it at full-scale have been summarized. As a result, this review tries to be useful for all those people working in that area.
Sonia Guerra-Rodríguez; Encarnación Rodríguez; Devendra Narain Singh; Jorge Rodríguez-Chueca. Assessment of Sulfate Radical-Based Advanced Oxidation Processes for Water and Wastewater Treatment: A Review. Water 2018, 10, 1828 .
AMA StyleSonia Guerra-Rodríguez, Encarnación Rodríguez, Devendra Narain Singh, Jorge Rodríguez-Chueca. Assessment of Sulfate Radical-Based Advanced Oxidation Processes for Water and Wastewater Treatment: A Review. Water. 2018; 10 (12):1828.
Chicago/Turabian StyleSonia Guerra-Rodríguez; Encarnación Rodríguez; Devendra Narain Singh; Jorge Rodríguez-Chueca. 2018. "Assessment of Sulfate Radical-Based Advanced Oxidation Processes for Water and Wastewater Treatment: A Review." Water 10, no. 12: 1828.
Winery wastewater is characterized by the presence of organic and inorganic contaminants with significant environmental impact if released without proper treatment. Thus, the application of sulphate radical-based advanced oxidation processes (SR-AOP) in winery wastewater treatment, with emphasis on the removal of organic matter, has been investigated. Several experiments were performed to assess the influence of temperature, UV-C radiation and transition metals in the thermal and photolytic/photocatalytic activation of sodium persulphate. COD removal was higher in the UV-C/S2O82- process than in the heat/S2O82- using an initial COD concentration of 600 mg O2 L-1. After a reaction time of 90 min (at pH = 7.0), using 15 mM of S2O82- driven by a UV-C lamp allowed achieving 59% of COD removal while the heat/S2O82- process attained a removal of only 41%. Afterwards, combining the thermal activation with transition metals, and using the optimal operational conditions ([S2O82-]/[Cu2+] = 1, pH = 7.0 and 90 min of reaction time), 61% of COD removal was obtained. Additional experiments with higher S2O82- concentrations and longer reaction time led to 96% and 71% of COD and TOC removal, respectively. To attain this target was used 25 mM of S2O82-, at pH 7.0 during a reaction time of 240 min. This removal rate proved to be higher than the achieved with hydroxyl radical-based advanced oxidation processes (HR-AOPs). Under the same optimal conditions, using 25 mM of H2O2 achieved 22% of COD removal and UV-C/Fe2+/H2O2 experiments obtained 48%. Overall, SR-AOP experiments, particularly UV-C assisted processes, have proven to be very effective in COD removal and can be seen as a promising technology to use in winery wastewater treatment.
Carlos Amor; Jorge Jesús Rodríguez Chueca; Joana L. Fernandes; Joaquín R. Domínguez; Marco S. Lucas; José Peres. Winery wastewater treatment by sulphate radical based-advanced oxidation processes (SR-AOP): Thermally vs UV-assisted persulphate activation. Process Safety and Environmental Protection 2018, 122, 94 -101.
AMA StyleCarlos Amor, Jorge Jesús Rodríguez Chueca, Joana L. Fernandes, Joaquín R. Domínguez, Marco S. Lucas, José Peres. Winery wastewater treatment by sulphate radical based-advanced oxidation processes (SR-AOP): Thermally vs UV-assisted persulphate activation. Process Safety and Environmental Protection. 2018; 122 ():94-101.
Chicago/Turabian StyleCarlos Amor; Jorge Jesús Rodríguez Chueca; Joana L. Fernandes; Joaquín R. Domínguez; Marco S. Lucas; José Peres. 2018. "Winery wastewater treatment by sulphate radical based-advanced oxidation processes (SR-AOP): Thermally vs UV-assisted persulphate activation." Process Safety and Environmental Protection 122, no. : 94-101.
This research reports for the first time the full-scale application of different homogeneous Advanced Oxidation Processes (AOPs) (H2O2/UV-C, PMS/UV-C and PMS/Fe(II)/UV-C) for the removal of antibiotics (ABs) and antibiotic resistance genes (ARGs) from wastewater effluent at Estiviel wastewater treatment plant (WWTP) (Toledo, Spain). AOPs based on the photolytic decomposition of H2O2 and peroxymonosulfate tested at low dosages (0.05–0.5 mM) and with very low UV-C contact time (4–18 s) demonstrated to be more efficient than UV-C radiation alone on the removal of the analyzed ABs. PMS (0.5 mM) combined with UV-C (7 s contact time) was the most efficient treatment in terms of AB removal: 7 out of 10 ABs detected in the wastewater were removed more efficiently than using the other oxidants. In terms of ARGs removal efficiency, UV-C alone seemed the most efficient treatment, although H2O2/UV-C, PMS/UV-C and PMS/Fe(II)/UV-C were supposed to generate higher concentrations of free radicals. The results show that treatments with the highest removal of ABs and ARGs did not coincide, which could be attributed to the competition between DNA and oxidants in the absorption of UV photons, reducing the direct photolysis of the DNA. Whereas the photolytic ABs removal is improved by the generation of hydroxyl and sulfate radicals, the opposite behavior occurs in the case of ARGs. These results suggest that a compromise between ABs and ARGs removal must be achieved in order to optimize wastewater treatment processes.
Jorge Jesús Rodríguez Chueca; Saulo Varella della Giustina; Jaqueline Rocha; Telma Fernandes; Cristina Pablos; Ángel Encinas; Damià Barceló; Sara Rodríguez-Mozaz; Célia M. Manaia; Javier Marugán. Assessment of full-scale tertiary wastewater treatment by UV-C based-AOPs: Removal or persistence of antibiotics and antibiotic resistance genes? Science of The Total Environment 2018, 652, 1051 -1061.
AMA StyleJorge Jesús Rodríguez Chueca, Saulo Varella della Giustina, Jaqueline Rocha, Telma Fernandes, Cristina Pablos, Ángel Encinas, Damià Barceló, Sara Rodríguez-Mozaz, Célia M. Manaia, Javier Marugán. Assessment of full-scale tertiary wastewater treatment by UV-C based-AOPs: Removal or persistence of antibiotics and antibiotic resistance genes? Science of The Total Environment. 2018; 652 ():1051-1061.
Chicago/Turabian StyleJorge Jesús Rodríguez Chueca; Saulo Varella della Giustina; Jaqueline Rocha; Telma Fernandes; Cristina Pablos; Ángel Encinas; Damià Barceló; Sara Rodríguez-Mozaz; Célia M. Manaia; Javier Marugán. 2018. "Assessment of full-scale tertiary wastewater treatment by UV-C based-AOPs: Removal or persistence of antibiotics and antibiotic resistance genes?" Science of The Total Environment 652, no. : 1051-1061.
A novel hybrid UV-C/microfiltration process for water disinfection is presented, and its application in continuous mode operation to the removal of different pathogen germs (Escherichia coli, Enterococcus faecalis, and Candida albicans) present in urban wastewater. The membrane photoreactor is based on porous stainless steel membranes coated with a TiO2 layer and illuminated by a UV-C lamp (254 nm). A valve actuator in the outlet of the UV-C stream allows operation of the system under conditions of constant transmembrane pressure (TMP) keeping the UV-C contact time in few seconds, significantly lower than the typical irradiation time employed in TiO2 photocatalytic processes. An E. coli removal of up to 4-log in the permeate stream and up to 2-log in the UV-C outlet was achieved with a 0.2 μm membrane operating with a TMP of 0.5 bar and a UV-C contact time as low as 8 s. The microbial balance data from the cells recovered from the membrane confirmed that 96–98% of the removed microorganisms died due to the UV-C action over the membrane surface. Modification of the membrane with a TiO2 layer has been also shown to be a suitable way to improve both the UV-C inactivation and the filtration efficiency. The results reported in this work constitute a proof of concept of the synergy between UV-C and filtration that can be achieved in a hybrid UV-C/microfiltration system, being a good example of process intensification where two products of different quality can be simultaneously obtained.
Jorge Rodríguez-Chueca; Sandra Mesones; Javier Marugán. Hybrid UV-C/microfiltration process in membrane photoreactor for wastewater disinfection. Environmental Science and Pollution Research 2018, 26, 36080 -36087.
AMA StyleJorge Rodríguez-Chueca, Sandra Mesones, Javier Marugán. Hybrid UV-C/microfiltration process in membrane photoreactor for wastewater disinfection. Environmental Science and Pollution Research. 2018; 26 (36):36080-36087.
Chicago/Turabian StyleJorge Rodríguez-Chueca; Sandra Mesones; Javier Marugán. 2018. "Hybrid UV-C/microfiltration process in membrane photoreactor for wastewater disinfection." Environmental Science and Pollution Research 26, no. 36: 36080-36087.
The high chemical stability and the low biodegradability of a vast number of micropollutants (MPs) impede their correct treatment in urban wastewater treatment plants. In most cases, the chemical oxidation is the only way to abate them. Advanced Oxidation Processes (AOPs) have been experimentally proved as efficient in the removal of different micropollutants at lab-scale. However, there is not enough information about their application at full-scale. This manuscript reports the application of three different AOPs based on the addition of homogeneous oxidants [hydrogen peroxide, peroxymonosulfate (PMS) and persulfate anions (PS)], in the UV-C tertiary treatment of Estiviel wastewater treatment plant (Toledo, Spain) previously designed and installed in the facility for disinfection. AOPs based on the photolytic decomposition of oxidants have been demonstrated as more efficient than UV-C radiation alone on the removal of 25 different MPs using low dosages (0.05-0.5 mM) and very low UV-C contact time (4-18 s). Photolysis of PMS and HO reached similar average MPs removal in all the range of oxidant dosages, obtaining the highest efficiency with 0.5 mM and 18 s of contact time (48 and 55% respectively). Nevertheless, PMS/UV-C reached slightly higher removal than HO/UV-C at low dosages. So, these treatments are selective to degrade the target compounds, obtaining different removal efficiencies for each compound regarding the oxidizing agent, dosages and UV-C contact time. In all the cases, HO/UV-C is more efficient than PMS/UV-C, comparing the ratio cost:efficiency (€/m·order). Even HO/UV-C treatments are more efficient than UV-C alone. Thus, the addition of 0.5 mM of HO compensates the increased of UV-C contact time and therefore the increase of electrical consumption, that it should be need to increase the removal of MPs by UV-C treatments alone.
Jorge Jesús Rodríguez Chueca; E. Laski; C. García-Cañibano; M.J. Martín de Vidales; Á. Encinas; B. Kuch; J. Marugán. Micropollutants removal by full-scale UV-C/sulfate radical based Advanced Oxidation Processes. Science of The Total Environment 2018, 630, 1216 -1225.
AMA StyleJorge Jesús Rodríguez Chueca, E. Laski, C. García-Cañibano, M.J. Martín de Vidales, Á. Encinas, B. Kuch, J. Marugán. Micropollutants removal by full-scale UV-C/sulfate radical based Advanced Oxidation Processes. Science of The Total Environment. 2018; 630 ():1216-1225.
Chicago/Turabian StyleJorge Jesús Rodríguez Chueca; E. Laski; C. García-Cañibano; M.J. Martín de Vidales; Á. Encinas; B. Kuch; J. Marugán. 2018. "Micropollutants removal by full-scale UV-C/sulfate radical based Advanced Oxidation Processes." Science of The Total Environment 630, no. : 1216-1225.