Bioretention is a water management practice that increasingly being applied for runoff quality control. Although previous studies have used some techniques to improve nutrient removal, nutrients still leach out. Therefore, this study Cascaded (CB) by connecting three columns in series. The planted Column was retrofitted adding subsurface drainage module (SDM) below the gravel layer create dual ...

Abstract. In this study, we explored the use of statistical machine learning and long-term groundwater nitrate monitoring data to estimate vadose zone saturated lag times in an irrigated alluvial agricultural setting. Unlike most previous studies that sought predict concentrations within aquifers, focus study was leverage available other environmental variables determine mean regional vertical ...

Saturated hydraulic conductivities of Varempere series soils (plinthaqualf) located in the sudan savannah zone of Ghana were measured by the falling head method and compared with values estimated by the texture-based equation of Rawls et al. (1982). The comparisons indicated that saturated hydraulic conductivity values estimated using the texture-based equation could predict those measured with...

Subsurface fate and transport models are utilized to predict concentrations of chemicals leaching from wastes into downgradient receptor wells. The contaminant concentrations in groundwater provide a measure of the risk to human health and the environment. The level of potential risk is currently used by the U.S. Environmental Protection Agency to determine whether management of the wastes shou...

Shallow urban groundwater interacts with surface water and underground infrastructures. Low-impact development in management by at-source infiltration should consider shallow a holistic manner. Traditional hydrological models, however, rarely detail flows their interaction runoff the budget. In present study, new approach is proposed, using integration of flow module WTI for saturated zone dist...