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Remediation of Abandoned Mine Lands |
We have studied the behaviour of the most common thiosalt species found under pond conditions both thermodynamically and experimentally. In these experiments the thiosalts have been studied under aqueous conditions individually and in mixtures at pH from 2-9 and temperatures from 4 to 30oC. The pH and temperature ranges were chosen to represent conditions associated with the pond. We also performed experiments to test the stability of our samples during the freeze/thaw process and storage prior to analysis and also to initiate a series of experiments we plan to do to mimic freeze/thaw cycles in the ponds. As part of this research we wanted to be able to quickly and accurately measure thiosalt species and also other species formed in reactions. A capillary electrophloris (CE) combined with a UV detector was employed. The experiments were successful in confirming already identified trends for some species and qualifying behaviour of thiosalts under pH and temperature conditions encountered in the pond
Yaovaluk Vongprom, Memorial University Master's in Environmental Engineering from Memorial University
Kelly A. Hawboldt, Memorial University Associate Professor in Engineering at MUN. Educational background: PhD Chemical Engineering Research: Green process engineering, wastewater mitigation/management, environmental effects monitoring/mitigation, biofuels, LCA analyses
Christina Bottaro, Memorial University Associate Professor in Chemistry (PhD in Chem) research: analysis and characterization of environmental pollutants. To date the focus has been the identification and quantification of organically-bound halogens in marine animals such as shrimp, cod and seal. development of analytical methods for the quantification and characterization of known and novel compounds. A number of analytical methods are used in our work: HPLC, GPC, GFC, GC-MS, LC-MS, MALDI-TOF, and CE-MS.