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Papers
20 resultsShowing papers similar to Electrochemical oxidation of losartan on a BDD electrode: Influence of cathodes and electrolytes on the degradation kinetics and pathways
ClearBoosted Electrocatalytic Degradation of Levofloxacin by Chloride Ions: Performances Evaluation and Mechanism Insight with Different Anodes
Researchers investigated how chloride ions in natural water affect the electrocatalytic degradation of the antibiotic levofloxacin using different electrode types. The study found that chloride presence significantly boosted degradation performance, providing insights into how water chemistry influences the effectiveness of advanced oxidation processes for removing pharmaceutical pollutants.
Persulfate Activation Using Biochar from Pomegranate Peel for the Degradation of Antihypertensive Losartan in Water: The Effects of Pyrolysis Temperature, Operational Parameters, and a Continuous Flow Reactor
Researchers synthesized biochar from pomegranate peel at different temperatures and tested its ability to activate persulfate for degrading the blood pressure medication losartan in water. The biochar produced at the highest temperature showed the greatest catalytic activity due to its larger surface area. The study demonstrates an approach for breaking down pharmaceutical contaminants in water, addressing a class of emerging pollutants that often co-occurs with microplastics in aquatic environments.
Mechanistic insight into the photoconversion of losartan potassium mediated by different types of microplastics
This study found that different types of microplastics — polystyrene, PET, and PLA — have distinct effects on how a common blood pressure drug (losartan) breaks down when exposed to sunlight in water, with aged and weathered microplastics generally accelerating the drug's transformation into unknown byproducts. This matters because microplastics and pharmaceutical pollutants commonly co-occur in water bodies, and their interactions could produce new contaminants with unpredictable health effects.
Small-Scale Electrochemical Oxidation of Non-Steroidal Anti-Inflammatory Drugs: Conventional Approaches and Conditions
Researchers investigated optimal conditions for small-scale electrochemical oxidation of non-steroidal anti-inflammatory drugs (NSAIDs) as a pretreatment strategy between the pollution source and wastewater treatment plants, finding electrochemical oxidation to be a flexible and environmentally favorable approach for degrading pharmaceutical pollutants at low concentrations.
Pharmaceuticals Removal by Ozone and Electro-Oxidation in Combination with Biological Treatment
Researchers tested the combined use of ozonation and electrochemical oxidation for removing pharmaceutical contaminants from hospital wastewater. They found that the simultaneous application of both methods, following initial biological treatment, achieved complete degradation of refractory compounds and produced a non-toxic effluent. The study suggests this combined approach is a promising solution for treating pharmaceutical-contaminated wastewater from healthcare facilities.
Electrochemical degradation of nanoplastics in water: Analysis of the role of reactive oxygen species
Researchers investigated electrochemical methods for degrading nanoplastics in water and analyzed the role of different reactive oxygen species in the process. They found that the electro-peroxidation process was about 2.6 times more effective than standard electrooxidation, achieving up to 86.8% nanoplastic degradation under optimized conditions. The study presents a promising advanced treatment approach for addressing nanoplastic contamination in water.
Estudo da eletrossíntese de peróxido de hidrogênio em reatores eletroquímicos utilizando eletrodo de difusão gasosa de carbono amorfo com benzofenona
This doctoral thesis explored the electrosynthesis of hydrogen peroxide using a carbon-based gas diffusion electrode modified with benzophenone, achieving 97.7% selectivity and using the generated H2O2 to fully degrade the pharmaceutical pollutant ciprofloxacin in 20 minutes. The research focuses on advanced electrochemical oxidation processes for water treatment with no specific focus on microplastics.
Electrochemical Oxidation of Selected Micropollutants from Environment Matrices Using Boron-Doped Diamond Electrodes: Process Efficiency and Transformation Product Detection
This study applied electrochemical oxidation to degrade selected micropollutants from real environmental water matrices, evaluating electrode materials and operating conditions. The approach achieved high removal efficiency for persistent contaminants that resist conventional wastewater treatment.
Elimination of chloramphenicol through electro-fenton-like reaction: Reaction mechanism and electron transfer pathway
An electro-Fenton-like process using peroxymonosulfate activation was developed to degrade the antibiotic chloramphenicol, achieving complete removal within 16 minutes with a kinetic rate constant of 0.089 per minute and low energy consumption of 25.1 kWh per cubic meter.
Advanced electrocatalytic redox processes for environmental remediation of halogenated organic water pollutants
Researchers reviewed advanced electrochemical methods for breaking down halogenated organic pollutants in water, which are persistent contaminants found in many industrial and consumer products. The study examined how electrocatalytic processes can target the strong carbon-halogen bonds that make these chemicals so resistant to natural degradation. The findings suggest that these emerging treatment technologies hold promise for cleaning up contaminated water sources more effectively than conventional methods.
Advanced methods for treating gemfibrozil and carbamazepine in wastewater: a review
Researchers reviewed advanced methods for removing two common pharmaceutical pollutants — gemfibrozil (a cholesterol drug) and carbamazepine (an epilepsy drug) — from wastewater, finding that engineered nanomaterials capable of generating highly reactive oxygen radicals can achieve near-complete removal within minutes. These advanced oxidation approaches represent a significant improvement over conventional wastewater treatment, which struggles to break down pharmaceutical contaminants.
A Review on Application of Biochar in the Removal of Pharmaceutical Pollutants through Adsorption and Persulfate-Based AOPs
This review examined the application of biochar for removing pharmaceutical pollutants from water through adsorption and persulfate-based advanced oxidation processes, highlighting biochar's strong adsorption capacity, low cost, and effectiveness as a catalyst for activating persulfate.
Waves of change: Electrochemical innovations for environmental management and resource recovery from water – A review
This review covers recent advances in electrochemical technologies for environmental management and water resource recovery. Researchers highlighted how electrochemical methods can effectively target emerging water contaminants including heavy metals, pharmaceuticals, and microplastics. The study suggests that these innovative approaches offer promising solutions for removing microplastics and other pollutants from water treatment systems.
Removal of Ciprofloxacin from Wastewater by Ultrasound/Electric Field/Sodium Persulfate (US/E/PS)
Researchers developed an ultrasound-enhanced electro-activated persulfate system for removing the antibiotic ciprofloxacin from wastewater, achieving effective degradation through combined oxidation processes involving sulfate and hydroxyl radicals.
Electrochemical treatment of wastewater to remove contaminants from the production and disposal of plastics: a review
Researchers reviewed electrochemical treatment methods for removing plastic-related contaminants from wastewater, including bisphenol A, phthalic acid esters, and benzotriazoles. The review confirmed that electrochemical treatments are a viable option for removing these persistent plastic contaminants, and assessed their effectiveness in terms of removal rates, transformation products, toxicity, and energy requirements.
Selected widely prescribed pharmaceuticals: toxicity of the drugs and the products of their photochemical degradation to aquatic organisms
Researchers reviewed the environmental fate of widely prescribed pharmaceuticals in surface waters, examining both the parent drugs and their photochemical degradation products. The study found that some breakdown products may be more toxic to aquatic organisms than the original drugs, highlighting how pharmaceutical pollution interacts with other contaminants including microplastics in water systems.
Electrochemical remediation of microplastics: Progress and prospects in water treatment
This review examines electrochemical methods for removing microplastics from water, including electrocoagulation, electro-oxidation, and the electro-Fenton process. Evidence indicates that electro-oxidation can achieve removal rates as high as 99 percent under optimized conditions. The study highlights these techniques as promising alternatives for water treatment but calls for further research to scale them up for real-world applications.
Mechanism of norfloxacin transformation by horseradish peroxidase and various redox mediated by humic acid and microplastics
Researchers explored how the enzyme horseradish peroxidase combined with natural redox mediators can transform the antibiotic norfloxacin in water, with microplastics and humic acid affecting the process. Certain plant-derived compounds enhanced antibiotic breakdown while microplastics slightly inhibited the reaction. This has implications for removing pharmaceutical pollutants from wastewater.
Electrochemical Degradation of PET Microplastics and Its Mechanism
Researchers investigated whether electrochemical methods could break down PET microplastics in water without additional catalysts. They achieved up to 68% weight loss after just six hours of electrolysis, with temperature being the most important factor for efficiency. The study suggests that electrochemical degradation could be a practical approach for removing PET microplastics from aquatic environments.
The impact of anions on electrooxidation of perfluoroalkyl acids by porous Magnéli phase titanium suboxide anodes
Researchers tested how four anions (nitrate, sulfate, carbonate, phosphate) affect the electrooxidation of PFOS and PFOA using porous titanium suboxide anodes. Carbonate enhanced PFAS degradation while nitrate at concentrations above 10 mM suppressed it, with mechanistic experiments clarifying how anion interference occurs—informing the optimization of electrochemical PFAS treatment in real wastewater matrices.