Results 201 to 210 of about 5,377 (247)

Polychloroprene degradation by a Photo-Fenton process

Polymer Degradation and Stability, 2005
The influence of iron(III)-chloride-6-hydrate, FeCl3 6H2O on the photodegradation of polychloroprene under different conditions has been investigated. The effects of polymer concentration (Cp), temperature (T ), and polychromatic light exposure (L) on polymer degradation were evaluated using a 2 3 factorial design.
A.R. Freitas, G.J. Vidotti, A.F. Rubira, E.C. Muniz   +3 more
openaire   +1 more source

Degradation alternatives for a commercial fungicide in water: biological, photo-Fenton, and coupled biological photo-Fenton processes

Environmental Science and Pollution Research, 2016
Imazalil (IMZ) is a widely used fungicide for the post-harvest treatment of citrus, classified as "likely to be carcinogenic in humans" for EPA, that can be only partially removed by conventional biological treatment. Consequently, specific or combined processes should be applied to prevent its release to the environment.
Elsa López-Loveira, Federico Ariganello, María Sara Medina, Daniela Centrón, Roberto Candal, Gustavo Curutchet   +5 more
openaire   +3 more sources

Degradation kinetics and mechanisms of phenol in photo-Fenton process

Journal of Zhejiang University SCIENCE, 2004
Phenol degradation in photochemically enhanced Fenton process was investigated in this work. UV-VIS spectra of phenol degradation showed the difference between photo-Fenton process and UV/H(2)O(2), which is a typical hydroxyl radical process. A possible pathway diagram for phenol degradation in photo-Fenton process was proposed, and a mathematical ...
Feng, He, Le-cheng, Lei
openaire   +2 more sources

Formaldehyde degradation in the presence of methanol by photo-Fenton process

Journal of Environmental Management, 2008
In this study, the photo-Fenton process for the degradation of formaldehyde was investigated in lab-scale experiments. Results showed that methanol, the additive chemical in a commercial product of formaldehyde, was also decomposed during the formaldehyde oxidation reaction. The oxidation reaction was in three-stages. The first stage was the Fe(2+)/H(2)
Puangrat, Kajitvichyanukul, Ming-Chun, Lu, Aditsuda, Jamroensan   +2 more
openaire   +2 more sources

Nanoplastics mineralization by the intensified photo-Fenton process

Global NEST International Conference on Environmental Science & Technology, 2022
The widespread presence of microplastics (MPs) and nanoplastics (NPs) in aquatic systems has become one of the most challenging environmental issues nowadays. Although advanced oxidation processes (AOPs) have been widely studied for the treatment of persistent contaminants in water, their application for MPs and NPs removal have been scarcely addressed.
David Ortiz, Macarena Munoz, Jaime Carbajo, Zahara M. de Pedro, José Antonio Casas   +4 more
openaire   +1 more source

Toxicity evaluation of the landfill leachate after treatment with photo-Fenton, biological and photo-Fenton followed by biological processes

Journal of Environmental Science and Health, Part A, 2018
The objective of this study was the toxicity evaluation of landfill leachate samples both raw and after treatment by photo-Fenton (PF), biological (Bio) and photo-Fenton followed by biological (PF-Bio) processes. The organisms Artemia salina and Lactuca sativa were exposed to the leachate in different dilution.
Andréia, Colombo, Aparecido N, Módenes, Daniela E G, Trigueros, Bruna L, de Medeiros, Pricila, Marin, Silvia P D, Monte Blanco, Camila L, Hinterholz   +6 more
openaire   +2 more sources

Oxidation of aqueous chlorobiphenyls with photo-fenton process

Chemosphere, 1999
Abstract Research of 4-CBP and 4,4′-CBP in aqueous solution using the photo-Fenton process was conducted in two parts. The first part of the study explored the treatment efficiency, revealing that 4-CBP and 4,4′-CBP were easily adsorbed onto glass.
Kuo, Chao-Yin, Lo, Shang-Lien
openaire   +1 more source

Photo-Fenton process for excess sludge disintegration

Process Biochemistry, 2007
For the minimization of excess sludge in activated sludge process, the photo-Fenton reaction was applied as a novel technique and its effectiveness was experimentally examined. A batch study was conducted to elucidate parameters governing the activated sludge integration by the photo-Fenton process such as the concentrations of sludge, Fe ion and ...
Masahiro Tokumura, Mizuyo Sekine, Maki Yoshinari, Hussein T. Znad, Yoshinori Kawase   +4 more
openaire   +1 more source

Degradation of nitrophenols by Fenton and photo-Fenton processes

Journal of Photochemistry and Photobiology A: Chemistry, 2005
Abstract The degradation of four nitrophenols (NPs), namely 2-nitrophenol (2-NP), 4-nitrophenol (4-NP), 2,4-dinitrophenol (DNP), 2,4,6-trinitrophenol (TNP) with Fenton process, solar- and UV-assisted Fenton processes were investigated and compared for their treatment efficiency. The maximum mineralization observed for mono-NP, DNP and TNP was 32%, 25%
V. Kavitha, K. Palanivelu
openaire   +1 more source

Mineralization of Catechol by Fenton and Photo‐Fenton Processes

CLEAN – Soil, Air, Water, 2012
AbstractCatechol is one of the most abundant phenolic components of olive mill wastewaters. In this article, the mineralization of this compound in synthetic aqueous solutions by the Fenton and photo‐Fenton processes is studied. It has been found that for 1.44 mM catechol, the total organic carbon of solutions is reduced about 94.4% at best after 60 ...
Asma M'hemdi, Bechir Dbira, Ridha Abdelhedi, Enric Brillas, Salah Ammar   +4 more
openaire   +1 more source