Browsing by Author "Clement, Prabhakar"

Now showing items 1-20 of 33

Advanced physical and chemical characterization of oil spill residues

Han, Yuling (2019-04-18)

Oil spill contamination is a worldwide problem. On April 20th, 2010, the Deepwater Horizon (DWH) oil platform located off the coast of Louisiana exploded and sank after 2 days. The wellhead could not be sealed until July ...

Analytical Solutions for Sequentially Coupled Multi-Species Reactive Transport Problems

Srinivasan, Venkatraman (2007-12-15)

Multi-species reactive transport equations coupled through sorption and sequential first-order reactions are commonly used to model sites contaminated with radioactive wastes, chlorinated solvents and nitrogenous species. ...

Chemical characterization and biomarker fingerprinting of Deepwater Horizon oil spill residues

Yin, Fang (2015-07-02)

On April 20th, 2010, the Deepwater Horizon (DWH), a semi-submersible drilling rig, located about 120 miles off the coast of Alabama, exploring for oil in the Gulf of Mexico (GOM), experienced a catastrophic blowout and ...

Comparison of the Theory, Application, and Results of One- and Two-Dimensional Flow Models

Lee, Kathryn (2006-08-15)

The accurate simulation of flooding is crucial in the design of safe, cost-effective hydraulic structures. Hydraulic engineers are faced with several difficult decisions that will determine the accuracy of any modeling ...

Coupling Transport Codes with Geochemical Models

Kumar, Anjani (2006-12-15)

Multi-dimensional reactive transport models are needed for understanding the fate and transport of the metal contaminants in groundwater aquifers. The goal of this research is to develop a framework for coupling the MINTEQ ...

Degradation of Estradiol in Water and Soil Using a New Class of Stabilized Manganese Dioxide Nanoparticles and Hydrodechlorination of Triclosan Using Supported Palladium Catalysts

Han, Bing (2015-07-29)

Pharmaceuticals and personal care products (PPCPs), such as 17 beta-estradiol (E2) and triclosan (TCS), are endocrine disruptors that have been found in surface water and groundwater. The low concentration of these endocrine ...

Development and Application of One Dimensional Multi-component Reactive Transport Models

Torlapati, Jagadish (2012-12-14)

The overarching goal of this dissertation is to develop reactive transport models and explore their applications to groundwater remediation problems. The primary focus of this dissertation is aimed at developing models ...

Development, Numerical Implementation, and Application of Methods to Simulate Solute Transport Processes in Porous Media Systems

Bedekar, Vivek (2019-04-16)

Solute transport in porous media has been the attention of a plethora of studies over the last several decades. This research identifies gaps in existing knowledge within the realm of solute transport in porous media systems ...

An Ecologically-Sustainable Surface Water Withdrawal Framework For Cropland Irrigation-A case study in Alabama

Gupta, Anand (2009-04-22)

Agricultural production in the State of Alabama, USA, mostly depends on natural rainfall. Because of this and also because of low and uncertain precipitation levels during growing seasons, agricultural production in Alabama ...

The Effects of Land Cover, Climate, and Urbanization on Groundwater Resources in Dauphin Island

Petty, Katherine (2011-11-21)

The effects of land cover change, climate change, and population growth on the groundwater resources of a barrier island were explored in this study. The relationship between land cover and groundwater recharge was studied ...

Effects of Sorption and Desorption on Bioavailability of Atrazine in Soils Amended with Crop Residue Derived Char

Loganathan, Vijay-Anand (2006-08-15)

The bioavailability of pesticides in soils is affected by the addition of crop residue-derived char, which alters the sorption and desorption characteristics of the soil. Sorption, desorption and bioavailability experiments ...

Engineered Treatment of As-Laden Regeneration Brine from Ion Exchange Processes

Steinwinder, Thomas (2006-05-15)

Arsenic (As) contamination of drinking water sources has been one of the most challenging global environmental issues. In the United States, the newly revised maximum contaminant level (MCL) of 10 µg/L requires thousands ...

Evaluation of Erosion and Sediment Control Best Management Practices: Use of Silt Fence Tieback Systems and Anionic Polyacrylamide on Highway Construction Sites

McDonald, Justin (2007-08-15)

Every year the construction process exposes millions of acres of earth to the elements of wind, rain, and snow. This greatly increases the potential for erosion; therefore, the need for efficient erosion and sediment ...

Evaluation of Hydromulches as an Erosion Control Measure Using Intermediate-Scale Experiments

Wilson, Wesley (2010-05-20)

Discharge of sediment-laden stormwater from active construction sites, such as highway construction projects, is a growing concern in the construction industry (Zech et al. 2007, 2008). The United States Environmental ...

Experimental and Numerical Analysis of Groundwater-Surfacewater Interaction in Horizontal and Sloping Unconfined Aquifers.

Saha, Gopal (2009-07-15)

We investigated the interaction between the water moving from an unconfined aquifer and a surfacewater body. This interaction can occur during or after a rainfall event, which can cause the groundwater table to change. We ...

Factors Affecting Arsenic Mobilization in Experimental Subsurface Systems

Radu, Tanja (2007-12-15)

Elevated concentrations of arsenic (As) in groundwater is a widespread problem that affects millions of people around the world. Other than the adverse affects on human health, this problem often raises economic, social ...

Identification of Selenium Reducing Species Within and Suggested Optimization of a Passive Biological Reactor

Grantham, Patrick (2016-12-09)

As concern for the environment moves to the forefront of the issues considered most pressing by society, mankind is becoming increasingly aware of the harmful things it discharges into the ecosystem in the name of industry ...

Methods for Scaling and Comparing Adsorption Datasets

Hartzog, Owen (2008-08-15)

The presence of reactive groundwater contaminants are a great concern to many government agencies and private entities. The fate and transport of these contaminants is determined by their interactions with subsurface ...

Modeling Water Quality Impacts of Off-Road Vehicles in Forested Watersheds

Brodbeck, Christian (2005-08-15)

Erosion from off-road vehicles can cause negative effects on water quality by impairing fish habitat and shortening reservoir life. Due to an increasing level of off-road vehicle use throughout the country, this impact ...

A Numerical Investigation on High-Reynolds-Number Gravity Currents in Pressurized and Free-Surface Systems using Shallow Water Equation and Integral Model Approaches

Hatcher, Thomas, Jr. (2014-12-09)

Multiphase flows in the form of gravity currents are prevalent in various natural systems, as well as in some open channels and closed conduits. Thus, accurate flow simulation and efficient modeling tools are important in ...