YaBeSH Digital Library: Recent submissions
Now showing items 9361-9380 of 316660
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A Simulation–Optimization Approach for the Optimal Remediation of Reactive Contaminants in Confined and Unconfined Aquifers
(American Society of Civil Engineers, 2025)The degradation of groundwater quality is a challenging concern, and the restoration of contaminated aquifers is often expensive and resource-intensive, which requires reliable solutions. The reactive groundwater contaminants, ... -
Dry Deactivation of Sodium Metal in a Molten LiCl-KCl-CsCl-NaCl System
(American Society of Civil Engineers, 2025)An experimental study was performed with the objective of investigating and characterizing a dry technique for deactivation of sodium metal in a molten salt system. The study was performed in three parts. First, ... -
Immobilization of Heavy Metals in Soil: A Sustainable Bioremediation and Reuse with <i>Bacillus subtilis</i> and Alternate Calcium Sources
(American Society of Civil Engineers, 2025)Heavy-metal contamination in soil due to rapid industrialization poses a persistent environmental challenge, demanding effective and sustainable remediation solutions. Bacillus subtilis, a resilient bacterial strain, has ... -
EPA LEAF Testing of Ultra-Lightweight Foamed Glass Aggregate to Support Vapor Barrier Applications on Ponds and Lagoons
(American Society of Civil Engineers, 2025)Foamed glass aggregate (FGA) was characterized to evaluate its potential to serve as a vapor barrier on various water bodies [water supply reservoirs, industrial lagoons, acid mine drainage (AMD) ponds, etc.] Specifically, ... -
AI and Machine Learning for Optimizing Waste Management and Reducing Air Pollution
(American Society of Civil Engineers, 2025)Recent advancements in artificial intelligence and machine learning (AI&ML) can transform waste management and air quality by facilitating the analysis of extensive data sets to predict waste generation trends, optimize ... -
Performance Evaluation of Lab-Simulated Bioreactor Landfills under Aerobic and Anaerobic Conditions Using Wastewater and Sludge as Moisture Sources
(American Society of Civil Engineers, 2025)This study examined the effects of introducing wastewater and sludge, together with leachate recirculation, on the decomposition of municipal solid waste (MSW) in bioreactor landfills under controlled moisture conditions. ... -
Probabilistic and Deterministic Approach to Define the Vertical Stress in Inclined Mine Stopes
(American Society of Civil Engineers, 2025)Due to its environmental utility and capacity to increase the stability of mine excavations, underground mine backfilling is a proven technique and has become a common practice in the mining industry. The backfilling of ... -
Oxygen Transfer in Aerated Flows: Identification and Estimation of Liquid Film Coefficient and Specific Interface Area
(American Society of Civil Engineers, 2025)The process of oxygen transfer from the atmosphere to water is termed aeration. Aeration improves the quality of water in streams by replacing dissolved oxygen (DO) consumed in the biodegradation of organic matter. The ... -
Evaluation and Spatial Mapping of Criteria Air Pollutants in an Industrial City in India
(American Society of Civil Engineers, 2025)Air pollution poses a significant environmental challenge in many urban areas worldwide, largely driven by human activities and increasingly affecting air quality (AQ). This study focuses on mapping various pollutants that ... -
Experimental Investigation of the Impact of End-of-Life Lithium-Ion Battery Chemistry on Index and Engineering Properties of Clayey Soil Stratum
(American Society of Civil Engineers, 2025)The end-of-life (EOL) lithium-ion batteries (LiBs) that contain metals such as cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), and lithium (Li) commonly end up in landfills, which pose a threat to soil ... -
Treatment of Synthetic Coking Wastewater Using a Sequential Oxic–Anoxic Upflow Packed Bed Bioreactor System
(American Society of Civil Engineers, 2025)In this study, a two-stage sequential oxic–anoxic packed bed bioreactor (PBR) was designed with polyurethane foam cubes as microbial immobilizing materials for the removal of phenol, cresol, and NH3-N from synthetic coking ... -
Influence of Wall-Attached Vortices on the Pump Installed in the Suction Pipe of an Open Intake
(American Society of Civil Engineers, 2025)Wall-attached vortices in pump intake commonly appear and damage the stability of the whole pump station. Revealing the effects of these vortices on the pump performance is crucial for safe operation. In this paper, ... -
Experimental Study of Imbrication and Clustering of Nonspherical Particles on a Rough Bed Surface
(American Society of Civil Engineers, 2025)Imbricate structures play an important role in river stability. However, quantitative experimental studies have been rarely conducted. In this study, four types of uniform particles with different degrees of flatness were ... -
Investigating and Modeling Changes in Bed Height during the Deposition Process of a Mixed-Size Sediment
(American Society of Civil Engineers, 2025)The original concept of the active layer as envisioned by Hirano has so far been adopted and mostly utilized in studies with the caveat that the volume of the sediment bed including porosity is a conservative variable. ... -
Coherent Structure Variations in the Flow around a Square Pier with an Evolving Scour Hole
(American Society of Civil Engineers, 2025)Coherent structures play a significant role in the formation and growth of scour holes around bridge piers. The present study used large eddy simulations (LES) to investigate the variations of coherent structures at different ... -
Extended Method of Characteristics for Inverse Hydraulic Transient Modeling Using Sensor Data
(American Society of Civil Engineers, 2025)Hydraulic transient modeling is a critical tool for analyzing and managing pipeline systems. However, its practical application is often hindered by the need for precise boundary conditions and uncertainties in pipeline ... -
Stability of an Idealized Floating Carpet of Plastic Spheres in an Open Channel Flow
(American Society of Civil Engineers, 2025)Plastic debris can accumulate at hydraulic structures and waste-collection devices, leading to a so-called floating carpet formation. Understanding the accumulation of plastic debris at structures is pivotal in the prediction ... -
Capillary-Based Nonisothermal Suction Stress and Nonlinear Shear Strength Criteria for Unsaturated Compacted Soils
(American Society of Civil Engineers, 2025)The unsaturated geological layers are a common site of many engineering projects; however, it is challenging to predict their water retention capacity and shear strength. Through analysis of soils with dual-porosity ... -
Influence of Water Drag and Headspace Air Pressure on Airflow in Sanitary Sewers
(American Society of Civil Engineers, 2025)Odor complaints are widely reported due to hazardous gases being released from sewer systems. Mitigating and controlling the emission of these gases is the key to a better air environment. Existing airflow system models ... -
Air Demand and Flow Patterns of Low-Level Outlets: Accounting for Wall Roughness
(American Society of Civil Engineers, 2025)Low-level outlets (LLOs) are key safety elements of high-head dams, typically consisting of a pressurized inflow controlled by a vertical sluice gate that discharges into a free-surface flow tunnel. The transition from ...