14 research outputs found
Implementing hydrologic boundary conditions in a multiphysics model
No full text10.1061/(ASCE)HE.1943-5584.0000113Journal of Hydrologic Engineering14121374-137
Managing Water Supply Uncertainty: Option Contracts and Short-Term Water Transfers in California
No full textOption Contracts in Practice: A Look at Contractual and Institutional Design in the Context of California Water Transfers
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Modeling of Reactive Chemical Transport of Leachates from a Utility Fly-Ash Disposal Site
Get PDFFly ash from fossil-fuel power plants is commonly slurried and pumped to disposal sites. The utility industry is interested in finding out whether any hazardous constituents might leach from the accumulated fly ash and contaminate ground and surface waters. To evaluate the significance of this problem, a representative site was selected for modeling. FASTCHEM, a computer code developed for the Electric Power Research Institute, was utilized for the simulation of the transport and fate of the fly-ash leachate. The chemical evolution of the leachate was modeled as it migrated along streamtubes defined by the flow model. The modeling predicts that most of the leachate seeps through the dam confining the ash pond. With the exception of ferrous, manganous, sulfate and small amounts of nickel ions, all other dissolved constituents are predicted to discharge at environmentally acceptable concentrations
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