Browsing by Department "Civil Engineering"
Now showing items 321-340 of 394
Removal of Copper(II) and Lead(II) from Soils by Poly(Amidoamine) Dendrimers and Reductive Immobilization of Chromium(VI) by Stabilized Zero-Valent Iron Nanoparticles
(2006-08-15)
This research investigated the feasibility of using poly(amidoamine) PAMAM dendrimers for removal of copper(II) and lead(II) from soils, and using a new class of stabilized zero-valent iron (ZVI) nanoparticles for reductive ...
Removal of Uranium(VI) in Contaminated Water Using Iron Based Nanoparticles and Simultaneous Adsorption of Uranium(VI) and 2-Chlorophenol by Activated Carbon Fiber supported Titanate Nanotubes
(2019-12-05)
Uranium is one of the most detected radionuclides in aquatic systems. Reductive immobilization and adsorption have been commonly practiced to remove uranium from water. In this study, CMC-stabilized iron sulfide (FeS) ...
Removal or Immobilization of Arsenic by Stabilized Magnetite Nanoparticles in Water, Soil, and Poultry Litter
(2013-04-22)
Stabilized magnetite (Fe3O4) nanoparticles were synthesized and extensively tested for enhanced removal of arsenate, As(V), from water, and for in situ immobilization of arsenic in soil and poultry litter. Two low-cost and ...
Removal or Immobilization of Radionuclides and Trace-metals in Water, Soil and Poultry Litter Using Stabilized Nanoparticles
(2015-07-29)
Two kinds of stabilized nanoparticles were synthesized and tested for the in situ immobilization of metals and radionuclides in soil and groundwater, namely Fe-Mn binary oxide nanoparticles for adsorptive immobilization ...
Resistance of Multi-Wythe Insulated Masonry Walls Subjected to Impulse Loads
(2008-12-15)
The overall objective of this project was to define the dynamic flexural resistance of multi-wythe insulated masonry walls with specific emphasis placed on determining the potential application of foam insulation as a ...
Response of Deep Foundations to Seismic Loads in Alabama
(2013-08-21)
Deep foundations are commonly used as foundation elements for bridges in Alabama. Due to the implementation of the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor ...
A Review of the Alabama Department of Transportation’s Policies and Procedures for Life-Cycle Cost Analysis for Pavement Type Selection
(2015-05-11)
This thesis examines the process of life-cycle cost analysis for pavement type selection and gives specific consideration to the policies and procedures used by the Alabama Department of Transportation as of June 2013. ...
Roadside Features in Crash Prediction Models: Data Collection and Evaluation
(2016-05-05)
A roadway departure (RwD) crash, comprising run-off-road (ROR) and cross median/cross centerline head-on collisions, is defined as a crash in which a vehicle crosses an edge line, a centerline, or otherwise leaves the ...
Runoff Generation in Pastures of the Appalachian Plateau Region of North Alabama
(2009-05-04)
A detailed hillslope-scale hydrologic study was conducted in a pasture at the Sand Mountain region of north Alabama, USA. A 0.12 ha hillslope was intensively instrumented using 31 distributed surface and subsurface runoff ...
Scour Potential of Cohesive Soils
(2013-05-13)
Determination of erosion parameters in order to predict scour depth is imperative to designing safe, economic, and efficient bridge foundations. Scour behavior of granular soils is generally understood, and design criteria ...
Seismic Response Evaluation of a Concrete Gravity Dam Considering Dam-Reservoir-Foundation Interaction
(2019-04-16)
The observation of the behavior of concrete gravity dams that are exposed to seismic loads is the main factor for the safety evaluation of the dams. In this regard, dam-foundation-reservoir interaction can be seen as one ...
Selective Removal of As(V) from Water by Polymeric Ligand Exchange and Engineered Treatment of Spent Regenerant
(2006-08-15)
Arsenic introduced by natural or human activities into drinking water sources has been a challenging issue around the world. In the western United States, high arsenic concentrations in drinking water have caused serious ...
A Sensitivity Analysis of the Mobility-Related Benefits of the Alabama Service and Assistance Patrol
(2007-12-15)
The Alabama Service and Assistance Patrol (ASAP) was developed by the Alabama Department of Transportation in an attempt to reduce non-recurring congestion in the Birmingham region of Alabama. This Freeway Service Patrol ...
Shear Strengths of End Regions of Prestressed Self-Consolidating Concrete Beams
(2008-05-15)
Understanding of the shear and bond performance of self-consolidating concrete (SCC) is vital to fully implement SCC usage in structures. State highway structures are a potential application for prestressed SCC systems ...
Simulations of watershed response to land use and climate change in the Saugahatchee Creek Watershed using the WARMF model
(2011-07-28)
During recent years, land surfaces have been markedly transformed with artificial land cover limiting natural forests, accompanied by urbanization. The atmospheric concentration of greenhouse gases is believed to be ...
Soil-Structure Interaction and Imperfect Trench Installations As Applied To Deeply Buried Conduits
(2007-05-15)
The imperfect trench installation method is used to reduce earth pressure on deeply buried conduits. Few quantitative refinements to the imperfect trench installation method, however, have been added since the fundamental ...
Sorption and Biodegradation of Pharmaceutical Compounds in Biological Wastewater Treatment Process
(2007-12-15)
This study was performed to investigate the removal mechanisms of pharmaceutical compounds (PhACs) in biological treatment processes. The removal efficiencies and byproducts of three model compounds including 17a-ethinylestradiol ...
Sorption of Thorium Onto Subsurface Geomedia
(2011-11-17)
Radionuclide contamination has been a significant environmental problem at US Department of Energy (USDOE) sites for many years. In addition, a final disposal solution for radioactive waste, such as deep geological ...
Sorption/Desorption and Photodegradation of Dispersed Oil Components in Marine Ecosystem
(2015-08-06)
This effects of a prototype oil dispersant on solubilization, sorption, and desorption of three model Polycyclic aromatic hydrocarbons (PAHs) in sediment-seawater systems were investigated. Increasing dispersant dosage ...
Stability of Highway Bridges Subject to Scour
(2008-12-15)
A common design/construction procedure for highway bridges in Alabama is the use of steel HP piles driven into a firm stratum with a length above ground/water up to the level of a concrete bent cap which supports the bridge ...