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Downcycling, or cascading, is the recycling of waste where the recycled material is of lower quality and functionality than the original material. Often, this is due to the accumulation of tramp elements in secondary metals, which may exclude the latter from high-quality applications. For example, steel scrap from end-of-life vehicles is often contaminated with copper from wires and tin from coating. This contaminated scrap yields a secondary steel that does not meet the specifications for automotive steel and therefore, it is mostly applied in the construction sector.
Menachem Elimelech is the Sterling Professor of Chemical and Environmental Engineering at Yale University. Elimelech is the only professor from an engineering department at Yale to be awarded the Sterling professorship since its establishment in 1920. Elimelech moved from the University of California, Los Angeles (UCLA) to Yale University in 1998 and founded Yale's Environmental Engineering program.
Polly Louise Arnold is director of the chemical sciences division at Lawrence Berkeley National Laboratory and professor of chemistry at the University of California, Berkeley. She previously held the Crum Brown chair in the School of Chemistry, University of Edinburgh from 2007 to 2019 and an Engineering and Physical Sciences Research Council (EPSRC) career fellowship.
Benjamin Guy Davis is Professor of Chemical biology in the Department of Pharmacology and a member of the Faculty in the Department of Chemistry at the University of Oxford and a Fellow of Pembroke College, Oxford. He holds the role of Science Director for Next Generation Chemistry (2019-2024) at the Rosalind Franklin Institute.
Caroline Masiello is a biogeochemist who develops tools to better understand the cycling and fate of globally relevant elemental cycles. She is a professor at Rice University in the Department of Earth, Environmental and Planetary Sciences and holds joint appointments in the Chemistry and Biochemistry Departments. Masiello was elected as a Fellow of the Geological Society of America in 2017. She currently leads an interdisciplinary team of scientists who are developing microbial sensors for earth system science.
Hind Al-Abadleh is a professor of chemistry at Wilfrid Laurier University in Waterloo, Ontario, Canada. She studies the physical chemistry of environmental interfaces, aerosols and climate change.
Janet Gordon Hering is the former Director of the Swiss Federal Institute of Aquatic Science and Technology and Professor emeritus of Biogeochemistry at ETH Zurich and EPFL. She works on the biogeochemical cycling of trace elements in water and the management of water infrastructure.
Aline Fiona Miller is a Professor of Biomolecular Engineering at the University of Manchester. She specialises in the characterisation of polymer, biopolymer and peptides, using neutron and x-ray scattering, as well as the development of functionalised nanostructures for regenerative medicine and toxicology testing.
Jennifer G. Murphy is a Canadian environmental chemist and an associate professor at the University of Toronto. She is known for her research how air pollutants such as increased reactive nitrogen affect the global climate.
Urs von Gunten is a Swiss environmental chemist and a professor at EPFL. He is known for his research in the fields of drinking water quality and water treatment.
JoAnn Slama Lighty is an American chemical engineer who is a professor at Boise State University. Her research considers carbon capture, chemical looping and black carbon emissions. In 2020 she was elected a Fellow of the American Association for the Advancement of Science for her air quality research.
Stephanie Lee Brock is an American chemist who is professor of inorganic chemistry at Wayne State University. Her research considers metal pnictides and chalcogenide nanomaterials. She is a Fellow of the American Association for the Advancement of Science and the American Chemical Society.
Sarah J. McLaren is a New Zealand environmental scientist and professor at Massey University.
Sara A. Majetich is an American physicist and Professor of Physics at Carnegie Mellon University. Her work considers magnetic nanoparticles and nanostructures for application in spintronic devices. She is a Fellow of the American Physical Society and the Institute of Electrical and Electronics Engineers.
Fiona Mary Doyle is an American materials scientist who is Professor of Materials Science and Engineering and the Donald H. McLaughlin Professor Emeritus at University of California, Berkeley. She was elected a member of the National Academy of Engineering in 2016 and a Fellow of The Minerals, Metals & Materials Society in 2021.
Beth L. Parker is a professor at the University of Guelph known for her research on groundwater contaminants and the remediation of groundwater systems.
Nancy Gail Love is an American engineer who is the JoAnn Silverstein Distinguished University Professor of Environmental Engineering at the University of Michigan. She is the former President of the Association of Environmental Engineering and Science Professors and a Fellow of the International Water Association and the Water Environment Federation. In 2021 she was awarded the AEESP Frederick George Pohland Medal.
Staci Simonich is an American environmental scientist who is a professor and dean for the College of Agricultural Sciences at Oregon State University. Her research considers how chemicals move through the environment. She was appointed Fellow of the American Association for the Advancement of Science in 2021.
The manganese cycle is the biogeochemical cycle of manganese through the atmosphere, hydrosphere, biosphere and lithosphere. There are bacteria that oxidise manganese to insoluble oxides, and others that reduce it to Mn2+ in order to use it.
Caroline P. Slomp is a professor at Radboud University Nijmegen who is known for her work on elemental cycling in marine environments. She is an elected fellow of the Geochemical Society and the European Association for Geochemistry.
References
- ↑ Podcast #1 - Karen Johnson - Department Professor , retrieved 2023-09-08
- ↑ University, Durham. "Professor Karen Johnson - Durham University". www.durham.ac.uk. Retrieved 2023-09-08.
- ↑ "Philip Leverhulme Prizes 2011 | The Leverhulme Trust". www.leverhulme.ac.uk. Retrieved 2023-09-08.
- ↑ "The Royal Society announces this year's medal and award winners | Royal Society". royalsociety.org. Retrieved 2023-09-08.
- ↑ University, Durham. "Unlocking the secrets of soil - Durham University". www.durham.ac.uk. Retrieved 2023-09-08.