Results 31 to 40 of about 1,800 (108)

Formation Characteristics of PCDD/Fs in the Co-combustion and Pyrolysis Process of Coal and Sewage Sludge

Aerosol and Air Quality Research, 2021
Co-combustion technology of coal and sewage sludge (SS) was encouraged and recommended in China. Previous studies most focused on its influence on combustion characteristics, migration characteristics of heavy metals in fly ash, and emission of ...
Mumin Rao, Xiangbo Zou, Ji Ye, Yunfeng Ma, Tieying Mao, Xiaoqing Lin, Xiaodong Li, Jianhua Yan, Shiwei Qin, Cao Kuang   +9 more
doaj   +1 more source

Pollutants Transformation During the Regeneration Process of Fluid Catalytic Cracking Catalysts

Angewandte Chemie, Volume 137, Issue 52, December 22, 2025.
Fluid catalytic cracking is the main pollutant source in crude oil refineries due to spent catalyst regeneration. In this work, flue gas pollutants are monitored and coke deposits are identified. Operando and in situ spectroscopy are developed to explore coke species evolution, coupled with online gas infrared spectroscopy to detect pollutant formation.
Jiawei Bian, Robin Vogel, Pengfei Tian, Shuang Yang, Bohan Wang, Hao Ling, Fuzhen Xuan, Feng Ju, Bert M. Weckhuysen   +8 more
wiley   +2 more sources

Dioxins and PCBs in Meat – Still a Matter of Concern?

CHIMIA, 2018
Polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) summarized as dioxins, as well as polychlorinated biphenyls (PCBs) are persistent, bio-accumulative and toxic environmental contaminants. Over 95% of human exposure
Markus Zennegg
doaj   +1 more source

Combined Flue Gas Cleaning from Persistent Organic Compounds and Nitrogen Oxides in the Multifunction Filter

Chemical Engineering Transactions, 2012
Production of new products is associated with the generation of waste that must be processed in some way. Besides recycling, as another opportunity to processing waste, there is the possibility of energetic utilization.
F. Jedlicka, D. Jecha, L. Bébar, J. Oral, P. Stehlík   +4 more
doaj   +1 more source

Update of the risk assessment on dioxins and dioxin‐like PCBs in feed and food

EFSA Journal, Volume 24, Issue 6, June 2026.
Abstract The European Commission asked EFSA to update its 2018 risk assessment on polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (DL‐PCBs) in feed and food, based on the 2022 WHO Toxic Equivalency Factors (WHO2022‐TEFs).
EFSA Panel on Contaminants in the Food Chain (CONTAM Panel), Helle Katrine Knutsen, Agneta Åkesson, Vasileios Bampidis, Margherita Bignami, Laurent Bodin, James Kevin Chipman, Gisela Degen, Antonio Hernández‐Jerez, Tim Hofer, Christer Hogstrand, Stefano Landi, Jean‐Charles Leblanc, Kyriaki Machera, Evangelia Ntzani, Isabelle P. Oswald, Guido Rychen, Salomon Sand, Katharina Vejdovszky, Barbara Viviani, Jesús del Mazo, Andy Hart, Dieter Schrenk, José Cortiñas Abrahantes, Luisa Ramos Bordajandi, Francesca Riolo, Tuuli Tauriainen, Ron Hoogenboom   +27 more
wiley   +1 more source

Re‐evaluation of sucralose (E 955) as a food additive and evaluation of a new application on extension of use of sucralose (E 955) in fine bakery wares

EFSA Journal, Volume 24, Issue 2, February 2026.
Abstract The present opinion deals with the re‐evaluation of sucralose (E 955) as food additive and with the safety of a proposed extension of use in food category (FC) 7.2 ‘Fine bakery wares’. Based on the available data, no safety concerns arose for genotoxicity of sucralose (E 955) and its impurities and degradation products.
EFSA Panel on Food Additives and Flavourings (FAF), Laurence Castle, Monica Andreassen, Gabriele Aquilina, Maria Lourdes Bastos, Polly Boon, Biagio Fallico, Rex FitzGerald, Maria Jose Frutos Fernandez, Bettina Grasl‐Kraupp, Ursula Gundert‐Remy, Rainer Gürtler, Eric Houdeau, Marcin Kurek, Henriqueta Louro, Patricia Morales, Sabina Passamonti, Monika Batke, Antonios Douros, James Chipman, Riccardo Crebelli, Peter Fürst, Thorhallur Halldorsson, Manuela Mirat, Alicja Mortensen, Matthew Wright, Oliver Lindtner, Stefania Barmaz, Consuelo Civitella, Zsuzsanna Horvath, Sara Levorato, Elena Mazzoli, Josef Daniel Rasinger, Ana Maria Rincon, Camilla Smeraldi, Alexandra Tard, Federica Lodi   +36 more
wiley   +1 more source

Safety of UV‐treated oil from yellow mealworm (Tenebrio molitor larvae) as a novel food pursuant to Regulation (EU) 2015/2283

EFSA Journal, Volume 23, Issue 11, November 2025.
Abstract Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on UV‐treated oil from yellow mealworm (Tenebrio molitor larvae) as a novel food (NF) pursuant to Regulation (EU) 2015/2283. The NF is produced from farmed T.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA), Dominique Turck, Torsten Bohn, Montaña Cámara, Jacqueline Castenmiller, Stefaan De Henauw, Ángeles Jos, Alexandre Maciuk, Inge Mangelsdorf, Breige McNulty, Androniki Naska, Kristina Pentieva, Alfonso Siani, Frank Thies, Margarita Aguilera‐Gómez, Francesco Cubadda, Thomas Frenzel, Marina Heinonen, Francesca Marcon, Harry J. McArdle, Peter Moldeus, Monika Neuhäuser‐Berthold, Josef Rudolf Schlatter, Morten Poulsen, Miguel Prieto Maradona, Alexandros Siskos, Henk van Loveren, Vânia Mendes, Ermolaos Ververis, Karen Ildico Hirsch‐Ernst   +30 more
wiley   +1 more source

Scalable and Integrated Photocatalytic Reactor Systems for Solar‐to‐Fuel Production: Photoredox and Photoreforming Processes

Advanced Energy Materials, Volume 15, Issue 28, July 22, 2025.
Solar fuels and other value‐added chemicals derived from light‐driven reactions are highly desirable. Although advanced photoactive materials have been reported, demonstrations of their feasibility in large‐scale production are needed. Hence, strategies and recent efforts in scaling up photocatalytic reactors and integrating them into comprehensive ...
Hoi Ying Chung, Roong Jien Wong, Hao Wu, Denny Gunawan, Rose Amal, Yun Hau Ng   +5 more
wiley   +1 more source

Rethinking Chlorine: Essential Chemical or Replaceable Risk?

ChemSusChem, Volume 18, Issue 13, July 1, 2025.
Chlorine is essential for the production of plastics and pharmaceuticals but poses significant safety and environmental risks. Herein, processes are presented that substitute chlorine or reduce its demand. Where indispensable, trichloride‐ and bichloride‐based ionic liquids could enhance safety and streamline the integration of renewable energy ...
Johannes Schwan, Merlin Kleoff, Gesa H. Dreyhsig, Patrick Voßnacker, Traute Fiedler, Marian Rosental, Sebastian Riedel   +6 more
wiley   +1 more source

Safety of frozen, dried and powder forms of house crickets (Acheta domesticus) as a novel food pursuant to Regulation (EU) 2015/2283

EFSA Journal, Volume 22, Issue 12, December 2024.
Abstract Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on the safety of frozen, dried and powder forms of house crickets (Acheta domesticus) as a novel food (NF) pursuant to Regulation (EU) 2015/2283. The NF is proposed in three forms: (i) frozen, (ii)
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA), Dominique Turck, Torsten Bohn, Montaña Cámara, Jacqueline Castenmiller, Stefaan De Henauw, Karen Ildico Hirsch‐Ernst, Ángeles Jos, Alexandre Maciuk, Inge Mangelsdorf, Breige McNulty, Androniki Naska, Kristina Pentieva, Alfonso Siani, Frank Thies, Margarita Aguilera‐Gómez, Francesco Cubadda, Thomas Frenzel, Marina Heinonen, Monika Neuhäuser‐Berthold, Helle Katrine Knutsen Morten Poulsen, Miguel Prieto Maradona, Josef Rudolf Schlatter, Alexandros Siskos, Henk van Loveren, Domenico Azzollini, Harry J. McArdle   +27 more
wiley   +1 more source