Transport of waste leakage in stratified formations |
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| Institution: | 1. Department of Chemistry, Università di Roma “La Sapienza”, Piazzale Aldo Moro 5, 00185 Rome, Italy;2. Department of Science and Engineering of Materials, Environment and Urban Planning-SIMAU, Marche Polytechnic University, Via Brecce Bianche 12, 60131 Ancona, Italy;3. Department of Biotechnology, University of Verona, Cà Vignal 1, Strada Le Grazie 15, 37134 Verona, Italy;4. CNR NANOTEC, Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy;1. Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan;2. Cardiovascular and Metabolic Research Unit, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, Canada |
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| Abstract: | Contaminant transport in a strongly heterogeneous stratified formation whose log hydraulic conductivity distribution has a variance greater than unity is investigated. Four kinds of waste leakage scenario are studied. They are: (1) continuous waste leakage from landfills; (2) temporal waste leakage from landfills; (3) continuous deep-well injection wastes; and (4) temporal deep-well injection wastes. Ensemble average concentrations and variances of concentration distributions are calculated for the four scenarios. The results in this paper show that when heterogeneity of a formation increases, transport in this formation differs significantly from the linear solutions which assume that the variances of log hydraulic conductivity are less than unity. |
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