Article
Environmental Sciences
Amin Mojiri, John L. Zhou, Noriatsu Ozaki, Bahareh KarimiDermani, Elham Razmi, Norhafezah Kasmuri
Summary: This study explains the accumulation of different PFAS in water bodies, showing a wide range of PFAS concentrations and varying levels of bioaccumulation in fish and water biota. Recent research has focused on removing PFAS from aqueous solutions, with advanced oxidation processes (AOPs) being a promising technique. Developing novel, efficient, cost-effective, and sustainable AOPs for PFAS degradation in water treatment systems is critical.
Article
Engineering, Environmental
Bo Liu, Bing Chen, Baiyu Zhang, Xing Song, Ganning Zeng, Kenneth Lee
Summary: The study found that ozone can enhance oxidation rates and remove hazardous substances containing PAHs in OPW; TNA exhibits strong photocatalytic capability; UV-LED can enhance the effectiveness of ozone and TNA, however, iodide may affect the oxidation of PAHs. The final recommendation is to treat OPW through sequential oxidation using ozone and the UV-LED/TNA/ozone system.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Environmental Sciences
R. F. Waris, I. H. Farooqi
Summary: In the past two decades, the detection of pharmaceuticals in water bodies has become a concern due to advancements in detection technologies. Pharmaceuticals can have toxic effects on both human and animal life when present in environmental waters. Advanced oxidation processes (AOPs) have been found to effectively target pharmaceutical compounds using powerful oxidizing radicals. However, there are drawbacks associated with AOPs, such as the generation of chemical sludge and high energy requirements. This review discusses different chemical treatment technologies for removing pharmaceuticals and emphasizes the combination of AOPs for increased removal and mineralization efficiency.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Tutuk Djoko Kusworo, Irvan, Andri Cahyo Kumoro, Yasmin Nabilah, Aufa Rasendriya, Dani Puji Utomo, Hasrinah Hasbullah
Summary: This study successfully synthesized TiO2/rGO nanocomposite particles and incorporated them into PVDF membrane for Batik wastewater treatment. The combination of bentonite adsorption and ozonation effectively improved the membrane performance, resulting in increased permeate flux and rejection rate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Anthony Heebner, Bassim Abbassi
Summary: This study evaluated a new combined treatment approach by combining ozonation and electrolysis for the mineralization of organic compounds in water. The results showed that the method was most effective for TOC removal in alkaline conditions and significantly enhanced performance compared to ozonation alone in acidic conditions. The initial pH had a more significant effect on TOC removal than current density, but both parameters were relevant. Under optimized conditions, 63% TOC removal was achieved.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Environmental Sciences
Qingbin Yuan, Siyao Qu, Rong Li, Zheng-Yang Huo, Yan Gao, Yi Luo
Summary: Global consumption and discharge of antibiotics have led to the rapid development and spread of bacterial antibiotic resistance. Electrochemical advanced oxidation processes (EAOPs) are becoming popular for treating water/wastewater containing antibiotics due to their high efficiency and ease of operation. This review summarizes various forms of EAOPs for antibiotic degradation, assesses their performance, discusses key factors influencing the degradation process, reviews degradation mechanisms and pathways, and highlights challenges and research needs for the application of EAOPs in antibiotic treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Chemistry, Physical
Wamda Faisal Elmobarak, Bassim H. Hameed, Fares Almomani, Ahmad Zuhairi Abdullah
Summary: The petroleum industry is rapidly growing, leading to increased environmental concerns about wastewater treatment. Advanced oxidation processes (AOP) have been applied for treating petroleum wastewater due to the limitations of conventional treatment methods. Different AOP techniques have shown varying degrees of efficiency in treating petroleum wastewater based on the contaminants present and operating conditions. Ongoing research focuses on further improving the AOP treatment methods for petroleum wastewater.
Review
Environmental Sciences
Enric Brillas
Summary: Ibuprofen is a widely prescribed drug with potential harmful effects on human health, as it can be found in various types of wastewater and drinking water. Conventional treatments are inefficient in removing IBP, leading to the development of advanced oxidation processes to mitigate its impact.
Review
Chemistry, Physical
Irene Bavasso, Daniele Montanaro, Elisabetta Petrucci
Summary: Novel processes combining ozone with electrochemical treatments have been recently developed, which belong to advanced oxidation processes and proceed via electrogeneration of highly oxidizing radical species. These processes involve sparging ozone in electrochemical cells with different electrode materials to promote ozone decomposition. This mini review focuses on the recent advances in electrochemically assisted ozonation, particularly the electroperoxone (EP) process using carbon-based cathodes and ozonation in cells with metal-based cathodes.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Engineering, Environmental
Eryk Fernandes, Pawel Mazierski, Magdalena Miodynska, Tomasz Klimczuk, Miroslawa Pawlyta, Adriana Zaleska-Medynska, Rui C. Martins, Joao Gomes
Summary: In this study, graphitic carbon nitride was synthesized with the addition of an exfoliation step using ultrasounds. The exfoliation process significantly increased the catalyst's surface area, from 2.18 m2 g 1 without treatment to 28.34 m2 g 1 after 36 hours of exfoliation. The formation of melem during exfoliation may further enhance the photoluminescence and photocatalytic properties. The combination of ozone and g-C3N4 photocatalysis showed better performance in the degradation of parabens compared to photolytic ozonation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Andressa Juliana Almeida Simoes, Roberto Oliveira Macedo-Junior, Brenda Lohanny Passos Santos, Daniel Pereira Silva, Denise Santos Ruzene
Summary: The study found that the number of scientific publications on advanced oxidation processes based on reactions with ozone and Fenton's reagent has significantly increased in recent years, and these processes have been proven to be very effective for treating produced water. However, the high energy consumption costs of these processes limit their application.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Engineering, Environmental
Carmen Solis-Balbin, Daniel Sol, Amanda Laca, Adriana Laca, Mario Diaz
Summary: This study analyzes the application of wet oxidation and ozonation in the removal of microplastics from wastewater. It was found that wet oxidation can remove approximately 86.3% of microplastics, while ozonation can remove approximately 45.2% of microplastics. Further experiments showed that ozonation mainly removes microplastics through gas bubbling, while wet oxidation mainly removes microplastics through chemical degradation. Finally, it was also found that the removal of microplastics is accompanied by fragmentation.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Editorial Material
Environmental Sciences
Huijiao Wang, Yujue Wang, Dionysios D. Dionysiou
Summary: This Special Issue includes papers on the mechanistic understanding, development, and implementation of advanced oxidation processes (AOPs) for removing emerging contaminants in water and wastewater treatment. The issue received attention from researchers worldwide and covers various AOPs such as electrochemical, photocatalytic, plasma, and Fenton-related processes. The guest editors are pleased with the innovative and meaningful contributions and hope that this Special Issue will promote the understanding and application of AOPs for emerging contaminant removal.
Review
Engineering, Environmental
Sabryna I. G. Costa, Fabricio L. Ferreira, Silvio E. Weschenfelder, Joao Vitor R. Fuck, Maria de Fatima R. da Cunha, Belisa A. Marinho, Luciana P. Mazur, Adriano da Silva, Selene M. A. Guelli. U. de Souza, Antonio Augusto U. de Souza
Summary: Despite the development of alternative fuels and energy sources, the world still heavily relies on petroleum production and extraction. This poses a global challenge in treating oilfield produced water (OPW), as an average of 3 barrels of OPW is produced for every barrel of extracted oil. OPW contains various organic compounds, including recalcitrant naphthenic acids (NAs) that are not efficiently removed by conventional treatment methods. Advanced oxidation processes (AOPs), such as ozonation, photocatalysis, photochemical oxidation, and Fenton-based processes, are considered promising alternatives for degrading resistant organic compounds. This review focuses on discussing the treatment of OPW and the degradation of pollutants using different AOPs, addressing the influencing factors and strategies to enhance AOPs efficiency. The findings suggest that individual processes may have limitations, and current research is exploring the use of combined processes.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Chemistry, Multidisciplinary
Chuan Kian Pang, Collin G. G. Joseph, Yan Yan Farm, Jualang Azlan Gansau, Siow Hwa Teo, Yun Hin Taufiq-Yap, Rock Keey Liew
Summary: The discharge of pollutant-rich wastewater without adequate treatment poses a serious threat to the environment. Catalytic and photocatalytic ozonation using metal ferrite are promising methods for making the treated wastewater reusable. This review summarizes the recent advances in metal ferrite nanoparticle catalysts, exploring their preparation methods, characterization techniques, catalytic mechanisms, and modification strategies. Furthermore, the current applications of metal ferrites as ozone catalysts and the synergistic effect of catalytic and photocatalytic ozonation are discussed. The pollutant removal efficiencies using metal ferrite are 20-40% for non-catalytic ozonation, 80-98% for catalytic ozonation, and 60-80% for photocatalytic ozonation.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Environmental Sciences
Fatima Jesus, Carla Bernardo, Rui C. Martins, Joao Gomes, Joana Luisa Pereira
Summary: This study aims to evaluate the ecotoxicological effects of ozonation treatment on increasing complexity of initial matrix, and assess ozonation efficiency using a diverse range of species in the ecotoxicological test system.
Article
Environmental Sciences
Eva Domingues, Eryk Fernandes, Telma Vaz, Joao Gomes, Sergio Castro-Silva, Rui C. Martins, Rosa Quinta-Ferreira, Licinio M. Ferreira
Summary: The combination of Fenton process and ion exchange is a promising approach for the treatment of cumbersome industrial wastewaters, as it can remove iron sludge and reduce COD effectively.
Article
Green & Sustainable Science & Technology
Rui Boavida-Dias, Joao R. Silva, Andreia D. Santos, Rui C. Martins, Luis M. Castro, Rosa M. Quinta-Ferreira
Summary: This study evaluated the performance of three wastewater treatment systems and found that the sequencing batch moving bed biofilm reactor (SBMBBR) had the best removal efficiency for COD, TC, and TN. The moving bed biofilm reactor (MBBR) produced less biomass and the activated sludge (AS) treatment generated the highest amount of sludge.
Review
Chemistry, Physical
Eryk Fernandes, Joao Gomes, Rui C. Martins
Summary: Photocatalysis is widely used for water reclamation and removal of contaminants of emerging concern (CECs). This review discusses recent developments in TiO2 based photocatalysis as a reference catalyst, and explores alternative materials such as WO3 and g-C3N4. Different techniques to enhance catalyst activity, including doping with multiple elements and composite materials, are evaluated. The combination of photocatalysis and ozonation is also explored as a promising approach to improve efficiency and overcome drawbacks.
Review
Chemistry, Physical
Magdalena Bilinska, Lucyna Bilinska, Marta Gmurek
Summary: This paper provides an overview of the use of catalytic ozonation for textile wastewater treatment, discussing the process parameters and accompanying mechanisms. With the annual production of over 800,000 tons of dyes and the daily discharge of highly polluted textile wastewater, this issue has become an environmental concern. The study demonstrates the effectiveness of catalytic ozonation in decomposing organic pollutants, such as textile dyes, and highlights the use of novel catalysts and industrial applications.
Article
Engineering, Environmental
Marta Gmurek, Johannes Alexander, Pawel Mazierski, Magdalena Miody, Maciej Fronczak, Tomasz Klimczuk, Adriana Zaleska-Medynska, Harald Horn, Thomas Schwartz
Summary: The study aimed to reduce facultative pathogenic bacteria and antibiotic resistance genes from secondary effluent. The efficiency of various processes in removing antibiotic resistance genes was evaluated. The study investigated the removal of selected antibiotic resistance genes, bacterial regrowth potential, and the removal of total genomic DNA content using TiO2-CuPd photocatalysts under visible light radiation. The highest removal efficiency for most targets was achieved with TiO2-CuPd/VIS. Photocatalytic ozonation with TiO2-CuPd showed significant removal of facultative pathogenic bacteria and antibiotic resistance genes. Photocatalytic ozonation has great potential for eliminating antibiotic resistance genes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Maria Ines Roque, Joao Gomes, Igor Reva, Artur J. M. Valente, Nuno E. E. Simoes, Paula V. V. Morais, Luisa Duraes, Rui C. C. Martins
Summary: Ensuring drinking water quality is crucial for public health, especially in the context of increasing industrialization. Disinfection is a key process, but it leads to the formation of unwanted disinfection byproducts (DBPs) that negatively impact human health. Stricter regulations and techniques for DBP removal have been developed, but further research is needed to monitor and control these contaminants in water distribution systems.
Article
Green & Sustainable Science & Technology
Andreia D. Santos, Diana Goncalves, Rui C. Martins, Marta Gmurek, Anabela Nogueira, Sergio Castro-Silva, Luis M. Castro, Rosa Quinta-Ferreira
Summary: The increasing demand for fresh water requires industries to reduce the need for it, especially in the winemaking industry, which has a significant impact on water resources due to high water consumption and wastewater production. The sun-driven photooxidation process is widely used for wastewater treatment, and this study employed four photosensitizers to remove pollutants from wastewater for water reuse. Among the photosensitizers used, ZnPcS4 showed better removal of chemical oxygen demand (COD) and phenolic compounds (TPH). The study also evaluated the effect of pH and concentration on ZnPcS4, finding that alkaline solutions improved the removal efficiency but also caused bleaching of the photosensitizer.
Article
Chemistry, Physical
Eryk Fernandes, Pawel Mazierski, Tomasz Klimczuk, Adriana Zaleska-Medynska, Rui C. Martins, Joao Gomes
Summary: Graphitic carbon nitride (g-C3N4) catalysts were synthesized using melamine, urea, and thiourea as precursors, and their influence on photocatalytic performance was investigated. Urea-based catalyst (UCN) showed the best results under all radiation sources, followed by thiourea and melamine. UCN achieved higher degradation of parabens under UVA compared to visible light, while natural sunlight had the highest removals using UCN. UVA lamps consumed 45% less energy and costs. Photocatalytic ozonation using UCN and MCN showed superior performance and complete removal under 12 minutes.
Article
Biotechnology & Applied Microbiology
Sofia A. Vaz, Sara M. Badenes, Helena M. Pinheiro, Rui C. Martins
Summary: The conventional wastewater treatment process is being improved to reduce pollutant content in effluent. Microalgae cultivation on wastewater shows promise in both water purification and nutrient recovery. Further directing algal biomass to anaerobic co-digestion with wastewater sludge improves biogas yield and energy recovery. However, more data on the distribution of carbon, nitrogen, and phosphorus are needed for future studies.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Environmental Sciences
B. S. Bandarra, H. Passos, T. Vidal, R. C. Martins, M. J. Quina, J. L. Pereira, J. Rombke
Summary: This work aims at improving the efficiency of a biotest battery for the assessment of waste ecotoxicity. The results show the importance of testing different species and suggest shortening the test duration for daphnids and earthworms. The use of miniaturized tests and alternative testing kits to overcome methodological difficulties is also recommended. Testing waste with natural pH and using the Extended Limit Test design with the LID-approach is found to be useful for waste testing.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Mariana Silva, Ines Oliveira-Inocencio, Rui C. Martins, Rosa Quinta-Ferreira, Marta Gmurek, Anabela Nogueira, Sergio Castro-Silva
Summary: In this study, the optimization of heterogeneous photosensitized oxidation treatment of winery effluents using chitosan carriers immobilized with Zn(II) Phthalocyanine tetrasulfonic acid was investigated. The effects of initial pH, aeration flow rate, photocatalyst load, and photosensitizer concentration on the treatment process were studied. The best reductions in COD and phenolic content (TPh) were achieved after 30 min of treatment in natural sunlight at an initial pH of 4.0 and an aeration flow rate of 2.8 L/min, with COD reduction of 45% and TPh reduction of 73%. The possibility of reusing the photocatalysts was also evaluated, and it was found that acidic pH allowed for their reuse without leaching of the photosensitizer.
Article
Environmental Sciences
Eva Domingues, Joao Lincho, Maria J. Fernandes, Joao Gomes, Rui C. Martins
Summary: Untreated swine wastewater can have serious consequences on water quality, but physical-chemical processes can effectively improve its quality. This study evaluated the performance of four low-cost materials and found that some of them showed promising results in removing COD. Additionally, the combination of adsorption and Fenton's process yielded interesting outcomes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)