Leachate Dispersion in Aquifers under Disposal Facilities
| Autor: | Nadim M. Aziz, Paul R. Schroeder |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
geography
Environmental Engineering geography.geographical_feature_category Waste management General Chemical Engineering Environmental engineering Sediment Aquifer Groundwater recharge Geotechnical Engineering and Engineering Geology Dredging Environmental science Leachate Water pollution Groundwater Water Science and Technology Waste disposal |
| Zdroj: | Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management. 8:142-147 |
| ISSN: | 1944-8376 1090-025X |
| DOI: | 10.1061/(asce)1090-025x(2004)8:3(142) |
| Popis: | Contaminated dredged material is often placed in confined disposal facilities (CDFs) designed and operated to control environmental impacts of the disposed sediment. A CDF is a diked enclosure having structures that retain dredged material solids. When contaminated dredged material is placed in a CDF, contaminants may be mobilized to form leachate that may be transported to the site boundaries by seepage. The purpose of this research is to examine the components of steady-state leachate attenuation in aquifers and to develop a predictive screening tool. The main factors affecting leachate transport and dilution through the saturated zone of an aquifer are evaluated to develop a guidance procedure to assist in decision making regarding the use of leachate controls in the CDF. The U.S. Environmental Protection Agencys’ MULTIMED model is used to develop predictive equations for the effects of recharge and lateral and vertical dispersion processes on centerline concentrations in the aquifer. The results show ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|