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RISThree-Dimensional Laboratory Experiments on Fate and Transport of LNAPL under Varying Groundwater Flow Conditions
Publisher: ASCE
Abstract: Variations in groundwater flow regimes due to direct draining/pumping and surrounding climatic variabilities may significantly affect the spatial and temporal distribution of hydrocarbon compounds in the subsurface. The ...
Development of nZVI-Pumice/Zeolite Composites for Effective Removal of Arsenic (III) from Aqueous Solution
Publisher: ASCE
Abstract: Nano zero valent iron (nZVI) composites were developed with iron loading ratios of 10% and 20% (w/w) using base materials, pumice, and zeolite. The four composites (PnZVI 10, PnZVI 20, ZnZVI 10, and ZnZVI 20) developed ...
Performance Evaluation of Aquifer Storage and Recovery (ASR) System in Saline Groundwater Regions: Impact of Operational Factors and Well Design
Publisher: ASCE
Abstract: Application of aquifer storage and recovery (ASR) is difficult in highly saline groundwater regions because the recharged freshwater mixes with saline groundwater and makes a thin layer below the capillary fringe. The ...
Role of Hydrogeological Factors on Aquifer Storage and Recovery Performance in Saline Groundwater Regions
Publisher: ASCE
Abstract: Aquifer storage and recovery (ASR) is a potential solution to growing global freshwater insecurity. However, the performance of ASR in saline regions depends on regional hydrogeology and groundwater salinity level. ...
Design and Operation of On‐Farm Irrigation Ponds
Publisher: American Society of Civil Engineers
Abstract: On‐farm storage facilities can be useful in satisfying the variable diurnal irrigation demand during a day and, at the same time, can prevent waste of water. In this study, an irrigation pond (IP) model is developed for ...
Transient Water Flow and Nitrate Movement Simulation in Partially Saturated Zone
Publisher: American Society of Civil Engineers
Abstract: Water flow through vadose zone is important for soil ecology and for groundwater development. A thorough knowledge of water flow and solute transport through unsaturated zone is also needed for sustainable irrigation ...
Evaluating the Uncertainties in the SWAT Model Outputs due to DEM Grid Size and Resampling Techniques in a Large Himalayan River Basin
Publisher: American Society of Civil Engineers
Abstract: Uncertainty in hydrological and nutrient modeling is a challenging task over large snow-fed and complex Himalayan watersheds. Digital elevation models (DEMs) are an important input for hydrological models. At times, DEM ...
Quantification of Desiccation Cracking and Strain Localization in Lime-Treated Compacted Expansive Soils Using DIA and DIC
Publisher: ASCE
Abstract: The present experimental study is focused on quantifying the initiation and propagation of desiccation cracking and strain localization in lime-treated compacted expansive soils subjected to controlled temperature and ...
Enhanced Performance of Aquifer Storage and Recovery System in Unconfined Saline Aquifer for Different Operational Factors: A Multidimensional Laboratory and Modeling Study
Publisher: ASCE
Abstract: Aquifer storage and recovery (ASR) in saline unconfined aquifers is challenging as the injected freshwater makes a thin layer above the groundwater table. For this reason, the efficiency of ASR in unconfined saline aquifers ...
In Situ Treatment of Arsenic-Contaminated Groundwater via Extraction Well–Integrated Permeable Reactive Barriers
Publisher: ASCE
Abstract: A pumice–maghemite (P-maghemite) composite was developed using the chemical coprecipitation method with a 20% iron loading ratio by weight. The characterization of the composite using SEM and XRD indicated the effective ...