Abstract: Adsorption onto activated carbon in a fixed‐bed reactor has been found to be an attractive process for removing hazardous organics from water and wastewater. Current fixed‐bed reactor design procedures can be both expensive ...

Abstract: Finite-element methods (FEMs) that use piecewise linear basis functions (PLBFs) are gaining popularity over finite difference techniques in modeling contaminant transport in ground water. However, utilization of the PLBFs ...

Abstract: The increasing practice of infiltration in disposal of storm-water runoff leads to concerns over the long-term quality of receiving ground waters. To ensure that best management practices are employed, understanding the ...

Abstract: Leachate from solid‐waste landfills poses a significant environmental threat to groundwater supplies, warranting capture and treatment. Treatment prior to biological co‐production to reduce heavy metal concentrations via ...

Abstract: A mathematical model of pollutant removal by wet ponds was developed based on the mass balance principle and the release–storage equation. The release–storage equation can be linear or nonlinear depending on the wet pond ...

Abstract: Hexavalent chromium (Cr(VI)) contamination of soil and groundwater is a major environmental concern for some industrial sites and most of the U.S. Department of Energy sites. Cr(VI) is toxic and fairly mobile in groundwater. ...

Abstract: A full-scale physical model of a modified infiltration trench was constructed to test a new storm water best management practice called an ecology ditch. The ditch was constructed using compost, sand, and gravel, and a ...

Abstract: Most previous studies of bacterial reduction of chromium have been done with pure cultures that are not likely to be found in ground water, and at hexavalent chromium concentrations much greater than typically present in ...