Soil particles lock up contaminants hundreds to thousands of times faster under the caustic conditions found beneath leaking toxic waste tanks at the Hanford Nuclear Reservation than under normal soil conditions, researchers report.
Understanding more about how contaminants such as radioactive cesium and strontium move through the soil under real-world conditions will help cleanup efforts at Hanford and other sites contaminated with nuclear waste. Previous research on the movement of soil contaminants had not replicated the extreme conditions found at the Hanford Site in Washington state.
"Theres a lot of interest in trying to determine the best approach to dealing with the massive subsurface waste at Hanford," said research team leader Jon Chorover, an associate professor of environmental chemistry at the University of Arizona in Tucson. "Our work helps predict the migration of this stuff. Understanding how these contaminants move in the soil can help with remediation."
Jon Chorover | EurekAlert!
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19.01.2017 | Deutsches Primatenzentrum GmbH - Leibniz-Institut für Primatenforschung
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An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
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Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
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