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Articles 271 - 288 of 288
Full-Text Articles in Physical Sciences and Mathematics
The Removal Of Pharmaceuticals From Wastewater By Wet-Air Oxidation, Miao Sun
The Removal Of Pharmaceuticals From Wastewater By Wet-Air Oxidation, Miao Sun
Electronic Theses and Dissertations
The ubiquitous occurrence of pharmaceuticals and personal care products (PPCPs) in aquatic environments has raised concerns about potential adverse effects on aquatic ecology and human health. Certain pharmaceuticals have recently become a major focus of research to better understand the routes and persistence of these compounds once they enter into aquatic system.
In this research, two model compounds were selected to represent pharmaceuticals that have been identified by recent research as being persistent; specifically, these compounds were trimethoprim (TMP, a basic antibiotic) and gemfibrozil (GEM, an acidic lipid regulator). Treatment of synthetic wastewater that contained these drugs was accomplished using …
Using Gis To Delineate Headwater Stream Origins In The Appalachian Coal-Belt Region Of Kentucky, Jonathan A. Villines
Using Gis To Delineate Headwater Stream Origins In The Appalachian Coal-Belt Region Of Kentucky, Jonathan A. Villines
Theses and Dissertations--Biosystems and Agricultural Engineering
Human activity such as surface mining can have substantial impacts on the natural environment. Performing a Cumulative Hydrologic Impact Assessment (CHIA) of such impacts on surface water systems requires knowing the location and extent of these impacted streams. The Jurisdictional Determination (JD) of a stream’s protected status under the Clean Water Act (CWA) involves locating and classifying streams according to their flow regime: ephemeral, intermittent, or perennial. Due to their often remote locations and small size, taking a field inventory of headwater streams for surface mining permit applications or permit reviews is challenging. A means of estimating headwater stream location …
Getches Wilkinson Center Newsletter, Winter/Spring 2013, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment
Getches Wilkinson Center Newsletter, Winter/Spring 2013, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment
Getches-Wilkinson Center for Natural Resources, Energy, and the Environment Newsletter (2013-)
No abstract provided.
Evaluating Residential Satisfaction With An Innovative Dual Water Supply System In Water Sensitive Urban Development, Raju S. Dhakal
Evaluating Residential Satisfaction With An Innovative Dual Water Supply System In Water Sensitive Urban Development, Raju S. Dhakal
Theses: Doctorates and Masters
The Australian water industry is facing two major challenges: a rise in water demand due to a growing population and a decrease in rainfall availability due to a drying climate. This situation has triggered a re-evaluation of traditional water schemes and promoted consideration of alternatives for sustainable urban water management. One possibility is to replace drinking water usage in garden and outdoor irrigation with non-potable groundwater. This could save almost half of the water supplied in the residential sector, which is the biggest consumer of scheme water in most Australian cities. A major hurdle for the success of such fit-for-purpose …
Temporal Dynamics Of Nutrient Flux Across Hydrologic Unit Boundaries, Md. Aminul Haque
Temporal Dynamics Of Nutrient Flux Across Hydrologic Unit Boundaries, Md. Aminul Haque
Dissertations and Theses @ UNI
The study was done in Dry Run Creek watershed, a small sub-urban watershed in the northwestern part of Black Hawk County, Iowa. Different hydrologic units like, wetland, agricultural area, urban area, and stream channels were compared in terms of nutrient transport. Soil, surface water, and groundwater samples were collected from May, 2012 to October, 2012. Among the hydrologic units, agricultural land has the highest organic matter percentages, infiltration rate, soil nitrate, and total phosphorus. High infiltration rate and amount of nutrients in agricultural soil made those areas more vulnerable to vertical infiltration of pollutants. Agricultural and urban soils had similar …
Cross-Boundary Water Transfers In The Colorado River Basin: A Review Of Efforts And Issues Associated With Marketing Water Across State Lines Or Reservation Boundaries, Colorado River Governance Initiative, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, Western Water Policy Program
Cross-Boundary Water Transfers In The Colorado River Basin: A Review Of Efforts And Issues Associated With Marketing Water Across State Lines Or Reservation Boundaries, Colorado River Governance Initiative, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, Western Water Policy Program
Books, Reports, and Studies
65 p. : charts ; 29 cm
Turning Water Into Wine: The Political Economy Of The Environment In Southern California's Wine Country, Jason Simms
Turning Water Into Wine: The Political Economy Of The Environment In Southern California's Wine Country, Jason Simms
USF Tampa Graduate Theses and Dissertations
This dissertation examines questions of water sustainability in contexts of wine production and state-led neoliberal development in the Temecula Valley, southern California, where wine tourism is at present being harnessed as an engine of economic growth. Natural and anthropogenic forces, such as global climate change, desertification, urban development, and the marketization and commodification of natural resources, affect the distribution and availability of water throughout the globe. As a result, the use of water, and associated political and environmental processes and consequences, in the production of global commodities, including wheat, citrus, and coffee, recently have come under increased scrutiny. Given wine's …
Flexible Urban Water Distribution Systems, Seneshaw Amare Tsegaye
Flexible Urban Water Distribution Systems, Seneshaw Amare Tsegaye
USF Tampa Graduate Theses and Dissertations
With increasing global change pressures such as urbanization and climate change, cities of the future will experience difficulties in efficiently managing scarcer and less reliable water resources. However, projections of future global change pressures are plagued with uncertainties. This increases the difficulty in developing urban water systems that are adaptable to future uncertainty.
A major component of an urban water system is the distribution system, which constitutes approximately 80-85% of the total cost of the water supply system (Swamee and Sharma, 2008). Traditionally, water distribution systems (WDS) are designed using deterministic assumptions of main model input variables such as water …
Insight Into The Use, Perception, And Value Surrounding Domestic Water In Peru: Envisioning Demand Management In An Intermittent, Small-City, Service Context, Merril Augusta Putnam
Insight Into The Use, Perception, And Value Surrounding Domestic Water In Peru: Envisioning Demand Management In An Intermittent, Small-City, Service Context, Merril Augusta Putnam
USF Tampa Graduate Theses and Dissertations
Population growth, urbanization, degrading water quality, and climate change are making management of scarce water resources an increasingly difficult task for the domestic sector. It is recognized that in order to manage urban water resources demand management is requisite. Demand management has been experimented with in large cities of developing countries but continued focus on expanding supply overshadows its potential benefits and ultimate success. In order to manage demand, it must be measured and understood. Intermittent water services are prevalent in developing countries, but unmetered domestic water use under such conditions has not been carefully studied. This study conducted 1,149 …
Time Scale Of Groundwater Recharge: A Generalized Modeling Technique, Makhan Virdi
Time Scale Of Groundwater Recharge: A Generalized Modeling Technique, Makhan Virdi
USF Tampa Graduate Theses and Dissertations
Estimating the quantity of water that reaches the water table following an infiltration event is vital for modeling and management of water resources. Estimating the time scale of groundwater recharge after a rainfall event is difficult because of the dependence on nonlinear soil characteristics and variability in antecedent conditions. Modeling the flow of water through the variably saturated zone is computationally intensive since it requires simulation of Richards' equation, a nonlinear partial differential equation without a closed-form analytical solution, with parametric relationships that are difficult to approximate. Hence, regional scale coupled (surface water - groundwater) hydrological models make simplistic assumptions …
Assessment Of A Modified Double Agar Layer Method To Detect Bacteriophage For Assessing The Potential Of Wastewater Reuse In Rural Bolivia, Sakira N. Hadley
Assessment Of A Modified Double Agar Layer Method To Detect Bacteriophage For Assessing The Potential Of Wastewater Reuse In Rural Bolivia, Sakira N. Hadley
USF Tampa Graduate Theses and Dissertations
Water scarcity is a global concern that impacts many developing countries, forcing people to depend on unclean water sources for domestic, agricultural, and industrial needs. Wastewater is an alternative water source that contains nutrients needed for crop growth. Wastewater reuse for agriculture can cause public health problems because of human exposure to pathogens. Pathogen monitoring is essential to evaluate the compliance of wastewater with established World Health Organization (WHO) and U.S. Environmental Protection Agency (EPA) wastewater reuse guidelines. Indicator organisms are commonly used to detect pathogens in water and wastewater because they are quick and easy to measure, non-pathogenic, and …
Water Quality Monitoring Program For Bermuda's Coastal Resources Final Report, Henry O. Briceño, Joseph N. Boyer
Water Quality Monitoring Program For Bermuda's Coastal Resources Final Report, Henry O. Briceño, Joseph N. Boyer
SERC Research Reports
No abstract provided.
Hydromorphology Of The Econlockhatchee River, John Baker
Hydromorphology Of The Econlockhatchee River, John Baker
Electronic Theses and Dissertations
Climate change and human activities alter the hydrologic systems and exerted global scale impacts on our environment with significant implications for water resources. Climate change can be characterized by the change of precipitation and temperature, and both precipitation pattern change and global warming are associated with the increase in frequency of flooding or drought and low flows. With increasing water demand from domestic, agricultural, commercial, and industrial sectors, humans are increasingly becoming a significant component of the hydrologic cycle. Human activities have transformed hydrologic processes at spatial scales ranging from local to global. Human activities affecting watershed hydrology include land …
The Relationship Between The Meaning Of Water And Sense Of Place : A Grounded Theory Study From Northern Thailand, Katesuda Sitthisuntikul
The Relationship Between The Meaning Of Water And Sense Of Place : A Grounded Theory Study From Northern Thailand, Katesuda Sitthisuntikul
Theses: Doctorates and Masters
The literature suggests that a subtle relationship exists for communities between the meaning of water and sense of place, making fertile ground for systematic investigation. The relationship has obvious importance in today’s world, where people’s reliance on water, and the need for reliable supplies, form part of a common discourse in natural resource management. Yet, there has been much less discussion of what water means to people, how it connects with peoples’ sense of place, and what that might mean for the way people interact with their surroundings. The methodology of constructivist grounded theory was therefore appropriate to investigate this …
Variation Of Hyporheic Temperature Profiles In A Low Gradient Third-Order Agricultural Stream – A Statistical Approach, Vanessa Beach, Eric Wade Peterson
Variation Of Hyporheic Temperature Profiles In A Low Gradient Third-Order Agricultural Stream – A Statistical Approach, Vanessa Beach, Eric Wade Peterson
Eric Wade Peterson
Sediment size governs advection, controlling the hydraulic conductivity of the stratum, and conduction, influencing the amount of surface area in contact between the sediment particles. To understand the role of sediment particle size on thermal profiles within the hyporheic zone, a statistical approach, involving general summary statistics and time series cross-correlation, was employed. Data were collected along two riffles: Site 1: gravel (d50 = 3.9 mm) and Site 2: sand (d50 = 0.94 mm).Temperature probe grids collected 15-minute temperature data at 30, 60, 90, and 140 cm below the streambed surface over a 6-month period. Surface water and air temperature …
Chapter 7: Freshwater And Sanitation, Stanley Mubako
Chapter 7: Freshwater And Sanitation, Stanley Mubako
Stanley Mubako
No abstract provided.
Input–Output Analysis Of Virtual Water Transfers: Case Study Of California And Illinois, Stanley Mubako
Input–Output Analysis Of Virtual Water Transfers: Case Study Of California And Illinois, Stanley Mubako
Stanley Mubako
No abstract provided.
Agricultural Virtual Water Trade And Water Footprint Of U.S. States, Stanley Mubako
Agricultural Virtual Water Trade And Water Footprint Of U.S. States, Stanley Mubako
Stanley Mubako
No abstract provided.