Search Results - "Canonica, Silvio"

Triplet state dissolved organic matter in aquatic photochemistry: reaction mechanisms, substrate scope, and photophysical properties by McNeill, Kristopher, Canonica, Silvio

“…Excited triplet states of chromophoric dissolved organic matter ( CDOM*) play a major role among the reactive intermediates produced upon absorption of…”
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Phenolic Antioxidants Inhibit the Triplet-Induced Transformation of Anilines and Sulfonamide Antibiotics in Aqueous Solution by Wenk, Jannis, Canonica, Silvio

“…Recent studies have shown that dissolved organic matter (DOM) may inhibit the excited triplet-induced oxidation of several aromatic water contaminants, in…”
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Effect of Dissolved Organic Matter on the Transformation of Contaminants Induced by Excited Triplet States and the Hydroxyl Radical by Wenk, Jannis, von Gunten, Urs, Canonica, Silvio

“…Dissolved organic matter (DOM) has recently been shown to reduce the transformation rate of various aqueous organic contaminants submitted to oxidation by…”
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Evaluating Pesticide Degradation in the Environment: Blind Spots and Emerging Opportunities by Fenner, Kathrin, Canonica, Silvio, Wackett, Lawrence P., Elsner, Martin

“…The benefits of global pesticide use come at the cost of their widespread occurrence in the environment. An array of abiotic and biotic transformations…”
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Oxidation of Aquatic Organic Contaminants Induced by Excited Triplet States by Silvio Canonica

“…The developments of the last fifteen years in the field of triplet-induced degradation of aquatic organic contaminants are reviewed. There is increasing…”
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Sunlight-induced transformation of sulfadiazine and sulfamethoxazole in surface waters and wastewater effluents by BAHNMÜLLER, Sabrina, VON GUNTEN, Urs, CANONICA, Silvio

“…Sulfadiazine (SD) and sulfamethoxazole (SMX) are widely used sulfonamide antibiotics, which are present as contaminants in surface waters and are known to…”
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Efficiency and energy requirements for the transformation of organic micropollutants by ozone, O3/H2O2 and UV/H2O2 by KATSOYIANNIS, Ioannis A, CANONICA, Silvio, VON GUNTEN, Urs

“…The energy consumptions of conventional ozonation and the AOPs O(3)/H(2)O(2) and UV/H(2)O(2) for transformation of organic micropollutants, namely atrazine…”
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Chemical Oxidation of Dissolved Organic Matter by Chlorine Dioxide, Chlorine, And Ozone: Effects on Its Optical and Antioxidant Properties by Wenk, Jannis, Aeschbacher, Michael, Salhi, Elisabeth, Canonica, Silvio, von Gunten, Urs, Sander, Michael

“…In water treatment dissolved organic matter (DOM) is typically the major sink for chemical oxidants. The resulting changes in DOM, such as its optical…”
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Probing the Photosensitizing and Inhibitory Effects of Dissolved Organic Matter by Using N,N‑dimethyl-4-cyanoaniline (DMABN) by Leresche, Frank, von Gunten, Urs, Canonica, Silvio

“…Dissolved organic matter (DOM) can act as a photosensitizer and an inhibitor in the phototransformation of several nitrogen-containing organic contaminants in…”
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Organic Contaminant Abatement in Reclaimed Water by UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed by UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation by Lee, Yunho, Gerrity, Daniel, Lee, Minju, Gamage, Sujanie, Pisarenko, Aleksey, Trenholm, Rebecca A, Canonica, Silvio, Snyder, Shane A, von Gunten, Urs

“…UV/H2O2 processes can be applied to improve the quality of effluents from municipal wastewater treatment plants by attenuating trace organic contaminants…”
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Photolysis of inorganic chloramines and efficiency of trichloramine abatement by UV treatment of swimming pool water by Soltermann, Fabian, Widler, Tobias, Canonica, Silvio, von Gunten, Urs

“…Trichloramine, one of the three inorganic chloramines (mono-, di- and trichloramine), is a problematic disinfection by-product in recreational pool water since…”
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Phototransformation of selected pharmaceuticals during UV treatment of drinking water by Canonica, Silvio, Meunier, Laurence, von Gunten, Urs

“…The kinetics of Ultraviolet C (UV-C)-induced direct phototransformation of four representative pharmaceuticals, i.e., 17 α-ethinylestradiol (EE2), diclofenac,…”
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Enhanced N-nitrosamine formation in pool water by UV irradiation of chlorinated secondary amines in the presence of monochloramine by Soltermann, Fabian, Lee, Minju, Canonica, Silvio, von Gunten, Urs

“…N-Nitrosamines, in particular N-nitrosodimethylamine (NDMA), are carcinogens, which occur as chlorine disinfection by-products (DBPs) in swimming pools and hot…”
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Comparison of the efficiency of OH radical formation during ozonation and the advanced oxidation processes O3/H2O2 and UV/H2O2 by Rosenfeldt, E.J, Linden, K.G, Canonica, S, Gunten, U. von

“…Comparison of advanced oxidation processes (AOPs) can be difficult due to physical and chemical differences in the fundamental processes used to produce OH…”
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Oxidation of Pharmaceuticals during Ozonation and Advanced Oxidation Processes by Huber, Marc M, Canonica, Silvio, Park, Gun-Young, von Gunten, Urs

“…This study investigates the oxidation of pharmaceuticals during conventional ozonation and advanced oxidation processes (AOPs) applied in drinking water…”
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Implications of sequential use of UV and ozone for drinking water quality by Meunier, Laurence, Canonica, Silvio, von Gunten, Urs

“…The formation of bromate levels exceeding the drinking water standard of 10 μg L −1 may impose the reduction of ozone doses used in the treatment of drinking…”
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Oxidation of Phenols by Triplet Aromatic Ketones in Aqueous Solution by Canonica, Silvio, Hellrung, Bruno, Wirz, Jakob

“…Aromatic ketones efficiently mediate the photo-oxidative degradation of phenols in aerated aqueous solution, a process likely to be relevant in sunlit natural…”
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Transformation Kinetics of Phenols in Water: Photosensitization by Dissolved Natural Organic Material and Aromatic Ketones by Canonica, Silvio, Jans, Urs, Stemmler, Konrad, Hoigne, Jurg

“…Dissolved natural organic material photosensitizes the transformation of substituted phenols with a selectivity comparable to that achieved with aromatic…”
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Probe Compounds to Assess the Photochemical Activity of Dissolved Organic Matter by Rosario-Ortiz, Fernando L, Canonica, Silvio

“…The photochemical properties of dissolved organic matter (DOM) have been of interest to scientists and engineers since the 1970s. Upon light absorption,…”
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Determination of Diffusion Coefficients of Humic Substances by Fluorescence Correlation Spectroscopy:  Role of Solution Conditions by Lead, Jamie R, Wilkinson, Kevin J, Starchev, Konstantin, Canonica, Silvio, Buffle, Jacques

“…Fluorescence correlation spectroscopy (FCS) was used to determine diffusion coefficients (D) of the Suwannee River fulvic and humic acids (SRFA and SRHA) and…”
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