Contamination from Sources with Mixed Wastes
Many contaminant sources introduce a diverse and complex mixture of organic and inorganic
contaminants into the subsurface, which can complicate characterizations of contaminant transport,
fate and effects. These sources include landfills and wastewater discharges. The resulting
contaminant plumes are difficult to characterize, manage, and remediate. Reactions among dissolved
chemicals, reactions between dissolved chemicals and the aquifer material, and microbial reactions
can significantly accelerate or retard contaminant movement and complicate natural and engineered
cleanup. Ongoing research focuses on defining source mixtures, developing field methods for
characterization, quantifying transport processes and development of simulation modeling
capabilities. Current research focuses on the following three areas:
Landfill Leachate in Alluvial Aquifers --
Sewage Contamination in Sand and Gravel
Aquifers -- Cape Cod, Massachusetts
Mixed, Low-level Radioactive and Other Wastes
-- Amargosa Desert Research Site, Nevada
Program Headlines on Mixed Waste Contamination Research
Meetings and Conferences
- Temporal variability of exchange between groundwater and surface water based on high-frequency direct measurements of seepage at the sediment-water interface: Rosenberry, D.O., Sheibley, R.W., Cox, S.E., Simonds, F.W., and Naftz, D.L., Water Resources Research, p. n/a-n/a, doi:10.1002/wrcr.20198 (IN PRESS).
- Stable isotope fractionations during reactive transport of phosphate in packed-bed sediment columns: Jaisi, D.P., 2013, Journal of Contaminant Hydrology, v. 154, p. 10-19, doi:10.1016/j.jconhyd.2013.08.003.
- Temporal dynamics of biogeochemical processes at the Norman Landfill Site: Arora, B., Mohanty, B.P., McGuire, J.T., and Cozzarelli, I.M., 2013, Water Resources Research, p. n/a-n/a, doi:10.1002/wrcr.20484.
- Quantifying wetland-aquifer interactions in a humid subtropical climate region--An integrated approach: Mendoza-Sanchez, I., Phanikumar, M.S., Niu, J., Masoner, J.R., Cozzarelli, I.M., and McGuire, J.T., 2013, Journal of Hydrology, v. 498, p. 237-253, doi:10.1016/j.jhydrol.2013.06.022.