Article
Environmental Sciences
Kubra Ulucan-Altuntas, Senem Yazici Guvenc, Emine Can-Guven, Fatih Ilhan, Gamze Varank
Summary: This study investigated the degradation of oxytetracycline by heat-activated peroxydisulfate and peroxymonosulfate processes. Response surface methodology was used to evaluate the effect of process parameters on oxytetracycline removal efficiency, showing significant results for both processes. The predicted oxytetracycline removal efficiencies for the PDS and PMS processes were 89.7% and 84.0%, respectively, with the PDS process having higher kinetic constants at all pH values than the PMS process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Yingzhi Qin, Xin Zhang, Guang-En Yuan
Summary: This study successfully degraded the azo dye OG by adding low concentration of Fe2+ into the MDN activated PMS process, which also reduced the leaching of toxic Mo ions significantly. The method improved the utilization efficiency of MDN by promoting the cycling of Fe3+/Fe2+ through its reductant role, resulting in the generation of reactive oxygen species responsible for OG degradation.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Pijun Duan, Xinning Liu, Binhua Liu, Muhammad Akram, Yanwei Li, Jingwen Pan, Qinyan Yue, Baoyu Gao, Xing Xu
Summary: The presence of phosphate was found to increase the effectiveness of PMS activation for pollutants removal in AOPs, promoting the generation of SO4 center dot- through efficient breaking of the O-O bond of PMS. The yields of SO4 center dot- were linearly dependent on phosphate concentration, while the yields of .OH remained constant.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Aydin Hassani, Paria Eghbali, Fayyaz Mahdipour, Stanislaw Waclawek, Kun-Yi Andrew Lin, Farshid Ghanbari
Summary: In this study, a CFO-rGO nanocomposite was synthesized and used to activate PMS under UVA-LED irradiation for BPA treatment. The CFO-rGO was characterized by various analytical techniques and its performance, operating factors, reactive species, and mechanism were investigated. The results showed that CFO-rGO exhibited efficient degradation of BPA under mild conditions, with high potential for recyclability and stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Guoquan Zhang, Luying Zhao, Xiaoxin Hu, Xiaoyu Zhu, Fenglin Yang
Summary: An anodic oxidation-cathodic ORR coupling system based on TiO2 nanotube array (TNAs) electrodes was established. The pH-dependent ORR process was found to enhance synergistic sulfate activation and reactive radicals co-generation mechanism, providing a multi-radical joint-attack mechanism for the pre-treatment or pointsource-treatment of sulfate-containing refractory organics wastewater.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Rodrigo Gonzalez-Quiles, Juan Manuel de Andres, Jorge Rodriguez-Chueca
Summary: The article discusses the potential of advanced oxidation processes in reducing organic pollutants, with a focus on the generation of sulfate radicals by activation of PMS by Fe2+ and TiO2. Results show that UV-C leads to faster discoloration of methylene blue, and Fe2+ and TiO2 enhance the discoloration effect.
Article
Environmental Sciences
Rajendran Ramachandran, Thangavel Sakthivel, Minzhang Li, Haiquan Shan, Zong-Xiang Xu, Fei Wang
Summary: Ni-based metal-organic framework (Ni-MOF) was used as a sacrificial template to prepare nickel-cobalt layered double hydroxide (NiCo-LDH) with controlled morphology, which showed high-efficiency PMS activation and dye degradation performance. The NiCo-LDH/10 sample exhibited a large specific surface area and well-oriented sheet structure, making it an excellent heterogeneous catalyst.
Article
Engineering, Chemical
Ke-An Zhu, Chao-Wei Yuan, Yi-Jiao Sun, Xin-Jia Chen, Bin-Bin Zhang, You-Peng Chen, Jin-Song Guo, Fei Chen
Summary: Heterogeneous activation of peroxymonosulfate (PMS) with the assistance of visible light is a promising technology for organic wastewater decontamination. However, there are challenges such as target pollutant characteristics and catalyst deactivation that can affect the efficiency of this combined system. In this study, carbon nitride (g-C3N4) nanosheets and photosensitive rhodamine B (RhB) were used as the catalyst and model pollutant respectively, achieving nearly 7.7 times enhancement compared to the single g-C3N4/vis system. Superoxide radical (·O2-) and singlet oxygen (1O2) were identified as the major contributors to the enhanced catalytic performance. Theoretical calculations explained the mechanism behind the enhanced activation of PMS through electron transfer from the excited RhB molecule to g-C3N4 under visible light. This work emphasizes the importance of photosensitization in treating complex organic wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Viet Cuong Dang, Dinh Trinh Tran, Anh Tuan Phan, Ngoc Khanh Pham, Van Noi Nguyen
Summary: In this study, rGO, Co3O4, and rGO-Co3O4 composites were successfully synthesized and evaluated for their catalytic activity in degrading TC in aqueous solutions. The rGO-Co3O4 composite exhibited significantly enhanced efficiency compared to pure Co3O4, showing potential as a recyclable catalyst system. The degradation process primarily followed pseudo-first order kinetics and was influenced by various factors such as pH, TC concentration, catalyst dosage, and PS concentration. HO dot and SO4 dot- radicals generated from the rGO-Co3O4/PS system were key species in degrading TC in solutions.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Environmental Sciences
Malihe Moazeni, Seyed Mehran Hashemian, Mika Sillanpaa, Afshin Ebrahimi, Ki-Hyun Kim
Summary: The study focused on the use of MIL-101(Fe)/PMS process for the treatment of dye Orange G, assessing the catalyst properties, efficiency, and factors affecting the removal of the dye. The synthesized catalyst showed high removal efficiency of 74% and could be defined by non-linear kinetic models based on response surface methodology. The addition of radical scavengers and mineral anions reduced the efficiency of OG removal with MIL-101(Fe)/PMS process.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Pooi-Ling Koo, Zheng-Yi Choong, Mohamed Faisal Gasim, Fitri Khoerunnisa, Nur Farhana Jaafar, Edy Saputra, Wen-Da Oh
Summary: A series of Ca-doped bismuth ferrite catalysts were synthesized via hydrothermal method, with BFOCa-0.8 showing the best catalytic activity for activating PMS to remove gatifloxacin. The Ca dopant increased oxygen vacancies and surface hydroxyl groups, enhancing the catalytic process. The catalyst displayed excellent reusability and potential for antibiotics removal.
Article
Environmental Sciences
Kenneth Mensah, Mahmoud Samy, Hani Ezz, Marwa Elkady, Hassan Shokry
Summary: The performance of three solid iron wastes as an activator for the degradation of methylene blue was evaluated, and one of them showed the best performance. The morphology, chemical composition, and chemical structure of the iron wastes were studied. The results showed that complete degradation of methylene blue could be achieved under certain conditions. The study also found that the iron waste could be efficiently employed in both the suspended and immobilized modes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Physical
Qingdong Qin, Yuancheng Dong, Taiping Yu, Yongfeng Zhang, Yan Xu, Jingjing Yang
Summary: A nickel-cobalt-iron hybrid oxide catalyst was successfully developed for efficient activation of peroxymonosulfate (PMS) in sulfamethoxazole (SMX) degradation. The NiCoFe-HO catalyst exhibited superior catalytic performance compared to other binary hybrid oxides, and the synergistic effect among Ni, Co, and Fe was confirmed. Sulfate radical and singlet oxygen were identified as the main reactive species in the oxidation process.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Liu-Xi Yang, Jia-Cheng E. Yang, Ming-Lai Fu
Summary: Porous magnetic CoFe2O4 nanocrystals were synthesized using bimetal-organic framework as a precursor and used as catalysts for the removal of chloramphenicol. The CoFe2O4 NCs showed high degradation efficiency and removal of total organic carbon during the removal of CAP.
Article
Engineering, Environmental
Mohammad Javad Amiri, Alireza Faraji, Morteza Azizi, Bahareh Goudarzi Nejad, Mohammad Arshadi
Summary: In this study, ostrich bone waste (OBW) was modified with hydrogen peroxide to produce OBW/HP with excellent chemical and mechanical strength as a sustainable catalyst for recovering heavy metal ions from industrial wastewater and degrading dyes. The modified OBW showed promising results in activating peroxymonosulfate, removing various dyes, and degrading organic buffers. The materials also exhibited advantages such as low cost, sustainability, high stability, no metal leaching, and recyclability.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Environmental
J. Rodriguez-Chueca, E. Barahona-Garcia, V. Blanco-Gutierrez, L. Isidoro-Garcia, A. J. Dos Santos-Garcia
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Green & Sustainable Science & Technology
Andrea Lopez, Jorge Rodriguez-Chueca, Rosa Mosteo, Jairo Gomez, Maria P. Ormad
JOURNAL OF CLEANER PRODUCTION
(2020)
Editorial Material
Environmental Sciences
Ana Rita Lado Ribeiro, Jorge Jesus Rodriguez-Chueca, Stefanos Giannakis
Article
Environmental Sciences
Rodrigo Gonzalez-Quiles, Juan Manuel de Andres, Jorge Rodriguez-Chueca
Summary: The article discusses the potential of advanced oxidation processes in reducing organic pollutants, with a focus on the generation of sulfate radicals by activation of PMS by Fe2+ and TiO2. Results show that UV-C leads to faster discoloration of methylene blue, and Fe2+ and TiO2 enhance the discoloration effect.
Article
Environmental Sciences
Amin Mohammadpour, Ehsan Gharehchahi, Ahmad Badeenezhad, Iman Parseh, Razieh Khaksefidi, Mohammad Golaki, Reza Dehbandi, Abooalfazl Azhdarpoor, Zahra Derakhshan, Jorge Rodriguez-Chueca, Stefanos Giannakis
Summary: This study evaluates the health risk of nitrate in groundwater resources in Hormozgan province, Iran, for different age groups. The results show that the average nitrate concentration is relatively low and the risk level is low, but there is still some potential hazard. The sensitivity analysis reveals that the nitrate content has the most significant influence on toxicity risk. Therefore, implementing a water resources management program can reduce nitrate concentration and improve water quality.
Article
Green & Sustainable Science & Technology
Fahimeh Khademi, Mohammad Reza Samaei, Abbas Shahsavani, Kourosh Azizi, Amin Mohammadpour, Zahra Derakhshan, Stefanos Giannakis, Jorge Rodriguez-Chueca, Muhammad Bilal
Summary: This study investigated the health risks of VOCs in and around the municipal landfill, finding that the concentrations of benzene and other compounds were higher than acceptable standards. Control measures should be implemented to reduce the concentrations of volatile compounds like benzene.
Article
Engineering, Environmental
Jorge Rodriguez-Chueca, Stefanos Giannakis, Maxime Tranchant, Paula Oulego, Michael Bensimon, Cesar Pulgarin
Summary: This manuscript explores the improvement of solar disinfection (SODIS) for water treatment by utilizing iron replacements, such as calcined herbs and spices, in the photo-Fenton reaction. The study evaluates the bactericidal performance of SODIS, H2O2/light, and solar photo-Fenton in both pure and Lake Leman water. The findings demonstrate that the addition of certain spices/herbs enhances the H2O2/light process, while the use of ashes as substitutes for Fe2+ results in faster kinetics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Physical
Jorge Rodriguez-Chueca, Jaime Carbajo, Patricia Garcia-Munoz
Summary: In recent decades, UV-AOPs have been used to remove various contaminants from polluted water, but their industrial-scale application is limited by high operational costs. Researchers have been working on increasing their efficiency and reducing costs by optimizing operational parameters, developing photocatalytic materials, and combining different UV-AOPs for pollutant treatment.
Article
Engineering, Environmental
S. Guerra-Rodriguez, E. Rodriguez, J. Rodriguez-Chueca
Summary: This research explores the application of advanced oxidation processes (AOPs) for wastewater reclamation at pilot scale, which has been a major limitation in this field. Pilot-scale studies on sulfate radical-based AOPs (SR-AOPs) are rare, although there has been an increasing interest in them in recent years. The activation of peroxymonosulfate (PMS) can be enhanced by UV-A radiation or other oxidants like hydrogen peroxide (H2O2) or ozone (O3), leading to more efficient processes with lower reagent consumption. The combination of 0.5 mM PMS and 0.25 g·h-1 O3 showed the fastest inactivation of Enterococcus faecalis, achieving complete inactivation in less than 45 minutes. The combination of PMS, H2O2, and UV-A radiation also exhibited significant synergy to achieve total inactivation in less than 120 minutes, albeit with lower performance than the PMS/O3 system. Mechanistic studies revealed that the sulfate radical (SO4-) was responsible for bacterial inactivation in the PMS/O3 system, while the dominant species varied in the PMS/H2O2/UV-A system depending on the molar ratio of the oxidants. The treatments studied were effective in simultaneously eliminating pathogenic microorganisms such as Enterococcus faecalis, Escherichia coli, and Staphylococcus aureus, making this technology a viable alternative to conventional disinfection treatments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
S. Guerra-Rodriguez, S. Cuesta, J. Perez, E. Rodriguez, J. Rodriguez-Chueca
Summary: This study evaluates the life cycle impacts of four advanced oxidation processes that utilize peroxymonosulfate for treatment, with one treatment scenario showing the lowest environmental impact and achieving a 5-log removal of Enterococcus faecalis in the shortest treatment time. The study also identifies electricity consumption as the most critical factor in assessing the environmental sustainability of the treatments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Jorge Rodriguez-Chueca, Stefanos Giannakis, Timur Senyuz, Jeremie Decker, Paula Oulego, Michael Bensimon, Thomas Guillaume, Cesar Pulgarin
Summary: This study explores a low-cost and effective solution for water potabilization using natural iron sources and sunlight. Soils from Colombia and Cameroon with high clay content and low carbon levels are found to be the most effective catalysts. Storing soils under acidic conditions enhances the concentration of soluble iron species and E. coli removal. Sodium percarbonate is a successful alternative to hydrogen peroxide, even in alkaline lake water samples.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Alba Rodriguez-Otero, Noelia Losada-Garcia, Sonia Guerra-Rodriguez, Jose M. Palomo, Jorge Rodriguez-Chueca
Summary: Heterogeneous copper and cobalt catalysts were synthesized for wastewater disinfection. The copper catalyst showed antibacterial capabilities, while the cobalt catalyst demonstrated catalytic activity. The cobalt catalyst's catalytic capacity was enhanced by adding peroxymonosulfate and solar radiation. However, both catalysts had low recyclability due to their unstable compositions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
S. Guerra-Rodriguez, M. J. Abeledo-Lameiro, M. I. Polo-Lopez, P. Plaza-Bolanos, A. Aguera, E. Rodriguez, J. Rodriguez-Chueca
Summary: This study evaluates the effectiveness of four sulfate radical-based advanced oxidation processes (SR-AOPs) in removing microorganisms, contaminants of emerging concern (CECs), and antibiotic resistance genes (ARGs) in wastewater treatment plants. The PMS/O3 system is found to be the most effective treatment, while also exhibiting phytotoxicity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Paloma Ozores Diez, Stefanos Giannakis, Jorge Rodriguez-Chueca, Da Wang, Brid Quilty, Rosaleen Devery, Kevin McGuigan, Cesar Pulgarin
Article
Education & Educational Research
Jorge Rodriguez-Chueca, Agustin Molina-Garcia, Cesar Garcia-Aranda, Javier Perez, Encarnacion Rodriguez
ENVIRONMENTAL EDUCATION RESEARCH
(2020)
