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Physical Sciences and Mathematics Commons™
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- Earth sciences (4)
- Applied sciences (3)
- Health and environmental sciences (2)
- Barriers (1)
- Best management practice (1)
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- Bioreactor (1)
- Compostingtoilets (1)
- Denitrification (1)
- Floodplain mapping (1)
- Hydro climatology (1)
- Hydrology (1)
- Nitrate reduction (1)
- Nutrient cycle (1)
- Social sciences (1)
- Soil science (1)
- Ssurgo (1)
- Subsurface drainage (1)
- Technology adoption (1)
- Unsaturated zone (1)
- Water (1)
- Water resources management (1)
- Waterless toilets (1)
- Woodchip (1)
- Publication
Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Irrigation With Treated Wastewater: Potential And Limitations, Anne Dare
Irrigation With Treated Wastewater: Potential And Limitations, Anne Dare
Open Access Dissertations
As the world population increases and resources become more coveted, water emerges as a key component to global food security. The Middle East and North Africa (MENA) is among the driest regions in the world: containing just one percent of the world's freshwater resources. An increasing population creates greater quantities of wastewater and demands greater quantities of food, so an obvious connection arises. However logical wastewater reuse may be for bridging the irrigation supply-demand gap in this arid region, significant limitations prevent widespread adoption. The overall goal of this research is to take a holistic view of the limitations facing …
Nitrate Removal From Subsurface Drainage By Denitrifying Bioreactor, Erin Chichlowski
Nitrate Removal From Subsurface Drainage By Denitrifying Bioreactor, Erin Chichlowski
Open Access Theses
Denitrifying bioreactors are an edge-of-field best management practice that reduce nitrate in runoff and subsurface drainage waters with minimum surface foot print and management requirements. The objectives of this study included evaluating a 173 m3 wood chip bioreactor for nitrate reduction and removal rates, the effects on phosphorus, and the impacts of the bioreactor's physical characteristics on effective nitrate reduction During periods of flow, weekly water samples were collected for lab analysis of nitrate+nitrite (nitrate-N), total nitrogen (TN), soluble reactive phosphorus (SRP), and total phosphorus (TP) and measurements were made of water temperature, dissolved oxygen, pH, oxidation reduction potential, temperature, …
The Barriers To Adopting Composting Toilets Into Use In Urban And Suburban Locations In The United States, Julia Branstrator
The Barriers To Adopting Composting Toilets Into Use In Urban And Suburban Locations In The United States, Julia Branstrator
Open Access Theses
The amount of fresh water available in the world is a finite resource. Large quantities of the fresh water are located in remote locations, while more accessible sources of fresh water are disproportionately distributed around the world. Some populations lack reliable access to clean water for daily life, making the routine use of potable water in toilets of upper-income countries a questionable practice in terms of resource responsibility, energy use, and sustainable infrastructure. The innovative nature of composting toilets offers potential solutions to the downfalls of conventional, waterborne toilets. However, the path to adoption of composting toilets has encountered barriers …
A Fesability Analysis Of A Novel Constructed Wetland Design Tool For Arusha, Tanzania, Michael R. Sheehan
A Fesability Analysis Of A Novel Constructed Wetland Design Tool For Arusha, Tanzania, Michael R. Sheehan
Open Access Theses
While water is a resource necessary for all life, in Tanzania alone over 20 million people who live in rural areas have no access to improved water sources. Water stress is a major concern in rural Tanzania, where annual potential evaporation can outpace precipitation by hundreds of mm per year. There is a significant need for improved access to water sources for Tanzanians living in rural regions of Arusha. To improve access to water, both water quantity and quality need to be addressed in a treatment system. Various water collection and treatment systems were compared and contrasted through the lens …
Systematic Analysis Of Drainage Events In Free Draining And Managed Subsurface Drainage Systems, Guy Bou Lahdou
Systematic Analysis Of Drainage Events In Free Draining And Managed Subsurface Drainage Systems, Guy Bou Lahdou
Open Access Theses
Understanding the hydrologic controls that regulate outflow from free and managed subsurface drainage systems during drainage events can offer improved insight on the overall functioning and effectiveness of the systems so that they can be better managed or retrofitted to increase their environmental benefits. This study used drainage, precipitation, water table, and soil moisture data from a monitoring site located in east central Indiana to investigate the event hydrology of 22 drainage events in free and managed subsurface drainage systems. Relationships between event drainage volume, drain flow hydrograph metrics, column soil moisture, water table depth, and precipitation characteristics were explored …
Floodplain Mapping Using Soil Survey Geographic (Ssurgo) Database, Nikhil Sangwan
Floodplain Mapping Using Soil Survey Geographic (Ssurgo) Database, Nikhil Sangwan
Open Access Theses
Floods are the most damaging of all natural disasters, adversely affecting millions of lives and causing financial losses worth billions of dollars every year across the globe. Flood inundation maps play a key role in assessment and mitigation of the potential flood hazards. However, there are several communities in the United States for which the flood risk maps have not been published yet, as the current flood inundation mapping methods are typically very expensive and time consuming. The objective of this study is to develop and examine an economical alternative approach to floodplain mapping using widely available soil survey data. …