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- Barite (1)
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- Coprecipitation (1)
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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Quantification Of Mineral Reactivity Using Machine Learning Interpretation Of Micro-Xrf Data, Julie J. Kim, Florence Ling, Dan A. Plattenberger, Andres F. Clarens, Catherine A. Peters
Quantification Of Mineral Reactivity Using Machine Learning Interpretation Of Micro-Xrf Data, Julie J. Kim, Florence Ling, Dan A. Plattenberger, Andres F. Clarens, Catherine A. Peters
Environmental Science Faculty Work
Accurate characterizations of mineral reactivity require mapping of spatial heterogeneity, and quantifications of mineral abundances, elemental content, and mineral accessibility. Reactive transport models require such information at the grain-scale to accurately simulate coupled processes of mineral reactions, aqueous solution speciation, and mass transport. In this work, millimeter-scale mineral maps are generated using a neural network approach for 2D mineral mapping based on synchrotron micro x-ray fluorescence (μXRF) data. The approach is called Synchrotron-based Machine learning Approach for RasTer (SMART) mapping, which reads μXRF scans and provides mineral maps of the same size and resolution. The SMART mineral classifier is trained …
Metals Coprecipitation With Barite: Nano-Xrf Observation Of Enhanced Strontium Incorporation, Heather A. Hunter, Florence Ling, Catherine A. Peters
Metals Coprecipitation With Barite: Nano-Xrf Observation Of Enhanced Strontium Incorporation, Heather A. Hunter, Florence Ling, Catherine A. Peters
Environmental Science Faculty Work
Coprecipitation can be an effective treatment method for the removal of environmentally relevant metals from industrial wastewaters such as produced waters from the oil and gas industry. The precipitation of barite, BaSO4, through the addition of sulfate removes barium while coprecipitating strontium and other alkaline earth metals even when these are present at concentrations below their solubility limit. Among other analytical methods, X-ray fluorescence (XRF) nanospectroscopy at the Hard X-ray Nanoprobe (HXN) beamline at the National Synchrotron Light Source II (NSLS-II) was used to quantify Sr incorporation into barite. Thermodynamic modeling of (Ba,Sr)SO4 solid solutions was done using solid solution—aqueous …
Interview Of Alice L. Hoersch, Ph.D., Alice L. Hoersch Ph.D., Selena Bemak
Interview Of Alice L. Hoersch, Ph.D., Alice L. Hoersch Ph.D., Selena Bemak
All Oral Histories
Alice Lynn Hoersch was born in 1950 in Abington, PA to Albert and Alice Hoersch. She moved to Honey Brook, located in Chester County, PA at two-years-old. Hoersch lived in Honey Brook until she finished graduate school in 1977. She attended Honey Brook Elementary School. She graduated as valedictorian from Twin Valley High School in 1968. Hoersch studied geology at Bryn Mawr College, graduating in 1972. She received both her master’s and Ph.D. in metamorphic petrology from Johns Hopkins University in 1974 and 1977, respectively. The same year she obtained her Ph.D., Hoersch began teaching as an assistant professor of …
Thinking Through The Environmental Crisis: Are We Doomed?, Anthony Paul Smith
Thinking Through The Environmental Crisis: Are We Doomed?, Anthony Paul Smith
Explorer Café
No abstract provided.