Design and Performance of Sustainable Recycled Barriers to Prevent Soil Pollution
Description: The need to minimize the amount and foster the safe treatment of waste, and thereby reduce the risk of contamination; emphasises the importance of promoting technologies which are environmentally sound with products suitable for re-use/recycling. We will talk about a laboratory experimental study to determine the performance of clay mixed with construction and biomass plant residues as materials for the enhanced attenuation of contaminants in landfill leachate. Column experiments where landfill leachate is passed through different residues:clay mixtures are run in a state-of-the-art centrifuge facility which simulates realistic times, pressures, atmosphere and temperatures of landfill field conditions. After permeation with landfill leachate, the effects of exposure of these liners to a rainfall infiltration is studied. The concept is applicable for barrier design at other pollutant disposal facilities and provides an effective and more environmentally sustainable basis to control pollution risks.
Speaker: Dr Mercedes Regadío (PhD on Earth Science and the Environment, 2012) has mostly worked in 3 research groups from different countries, being the internal responsible of 10 research projects (>7M €). In the Dept. of Geology and Geochemistry (University Autónoma de Madrid, Spain, 2007-2013), she worked on the structure and properties of earth materials related to waste liners. In the Dept. of Chemistry (KU Leuven, Belgium, 2014-2017), she worked on the reactions acting on earth and waste materials and their (challenging) chemical analyses. In the Dept. of Civil and Structural Engineering (The University of Sheffield, UK, 2018-2020), she works on engineering principles to build high attenuation recycled anti-pollution barriers for waste deposits. This allowed her to acquire knowledge in different, but correlated scientific disciplines: geology, chemistry and environmental engineering. Parallel to her research, she lectured on related topics more than 400 h to bachelor's and master's students in Spain, Germany and UK. In addition, she has cosupervised (1) and is cosupervising (2) PhD students, technicians (4), postgraduate research stays (3) and mentored a postdoctoral fellow (Univ. of Manchester) and an early-stage researcher (Univ. Autónoma Madrid – TU Delft). She has 40 conference communications (80% international) and 54 published documents, which include 21 JCR articles. She has collaborated and published with 36 international researchers from more than 20 universities, research centres and companies. She is an Associate editor with honorarium of Heliyon Earth Science (Elsevier Ltd) and a topic editor of Minerals (MDPI). Finally, she is highly committed to supporting science as mentor of early-stage researchers (see above), jury member of scientific events (e.g., ChemCYS 2016, PhD defence 2020), organizer of international conferences (e.g., VIII International Symposium SRUK/CERU, Oxford 2020-2021), as regular reviewer of JCR journals and as science disseminator (12 engagement activities in the last 2 years).