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New Mexico Acequias In Valencia: A Documentary Report, José A. Rivera Ph.D. 2022 University of New Mexico

New Mexico Acequias In Valencia: A Documentary Report, José A. Rivera Ph.D.

Researchers

In 2014 and 2019 the New Mexico Acequia Association attended events organized by the Water Tribunal of Valencia in Spain commemorating the fifth and tenth anniversaries when the acequias of Valencia and Murcia were listed by UNESCO as examples of the Intangible Cultural Heritage of Humanity. The documentary report provides the context for and significance of the two visits along with a series of photographs that tell the story for the benefit of the citizens of New Mexico.


Blue Resilience: Is There A Need For An Alaskan Coastal Career Development Framework?, Jared Fuller 2022 University of New England

Blue Resilience: Is There A Need For An Alaskan Coastal Career Development Framework?, Jared Fuller

All Theses And Dissertations

Youth career outmigration has increased in Alaska’s coastal communities in the last few decades. The ocean and ocean-adjacent industries that comprise the blue economy make up the majority of the employment options in places have experienced declines within these regions which has been attributed to the outward movement of young people. The dynamic history of Alaska has had specific impacts with regards to Alaskan coastal communities, their ocean-resource economies, and thus, the potential for young people to find career paths within them. Potential economic-resource vulnerabilities could be mapped along with the complex systems to help build resilience within those ...


Photocatalytic Degradation Of Organic Contaminants By Titania Particles Produced By Flame Spray Pyrolysis, Noah Babik 2022 Mississippi State University

Photocatalytic Degradation Of Organic Contaminants By Titania Particles Produced By Flame Spray Pyrolysis, Noah Babik

Theses and Dissertations

Advanced oxidation of organic pollutants with TiO2 photocatalysts is limited due to the wide bandgap of TiO2, 3.2 eV, which requires ultraviolet (UV) radiation. When nanosized TiO2 is modified by carbon doping, charge recombination is inhibited and the bandgap is narrowed, allowing for efficient photodegradation under visible light. Here, we propose a flame spray pyrolysis (FSP) technique to create TiO2. The facile process of FSP has been successful in preparing highly crystalline TiO2 nanoparticles. Using the same procedure to deposit TiO2 onto biochar, the photocatalyst was doped by the carbonaceous material. The morphology, crystalline and electronic structure of the ...


Exploring Social Dimensions Of Ecological Restoration In The Removal Of Two Dams On The Elwha River, Joseph Hinnant 2022 University of Nebraska-Lincoln

Exploring Social Dimensions Of Ecological Restoration In The Removal Of Two Dams On The Elwha River, Joseph Hinnant

Dissertations & Theses in Natural Resources

The United States is approaching a critical juncture regarding aging dam infrastructure. One increasingly common decision has been to remove dams, recreating a free-flowing river. The attention of the literature on ecological restoration is shifting from an ecological focus towards the importance of participation and the social dimensions of restorations. Social situations surrounding a dam removal can lead to expedited success, delays, or abandoned efforts. This study seeks to connect selected social dimensions of dam removals with the broader literature of ecological restoration by exploring social dimensions expressed in public participation in a dam removal process.

A directed content analysis ...


Exploring The Effects Of Varied Land Use On Elemental Concentrations Within Streams, Logan Jennings 2022 University of Arkansas, Fayetteville

Exploring The Effects Of Varied Land Use On Elemental Concentrations Within Streams, Logan Jennings

Biological and Agricultural Engineering Undergraduate Honors Theses

It is well documented that human activity influences the chemistry of surrounding waters. As such, it is possible that there is a link between land use within a watershed and the chemical composition of the stream. The objectives of this study are to determine if varied land use does affect the concentrations of macronutrients and trace elements present in the streams of Northwest Arkansas, and if so, to determine what extent urban and agricultural development are responsible for these changes. Water samples were collected across 19 streams in the Northwest Arkansas region between January and March of 2022. Water samples ...


Identifying Associations Between Human-Environmental Factors And Water Quality Trends Observed At Perennial Headwater Streams Of The San Bernardino National Forest, California, Anna Frey 2022 California State University, San Bernardino

Identifying Associations Between Human-Environmental Factors And Water Quality Trends Observed At Perennial Headwater Streams Of The San Bernardino National Forest, California, Anna Frey

Electronic Theses, Projects, and Dissertations

Anthropogenic factors related to landscape activities, infrastructure, and alterations, coupled with severe climatic fluctuations (i.e., droughts and extreme hydrological events) are increasingly impairing the quality of surface water resources across multiple geographic scales, warranting the need for comprehensive investigations of the cumulative effects of human-environmental stressors at multiple scales within a watershed. This study assessed three perennial headwater streams of the San Bernardino National Forest, California. The streams were tested for one year from October 2019 to September 2020 for conductivity, dissolved oxygen (DO), pH, turbidity, temperature, ammonium (NH4+), nitrate (NO3-), total coliform (TC), Escherichia coli (E ...


Multi-Criteria Evaluation Model For Classifying Marginal Cropland In Nebraska Using Historical Crop Yield And Biophysical Characteristics, Andrew Laws 2022 University of Nebraska-Lincoln

Multi-Criteria Evaluation Model For Classifying Marginal Cropland In Nebraska Using Historical Crop Yield And Biophysical Characteristics, Andrew Laws

Dissertations & Theses in Natural Resources

Marginal cropland is suboptimal due to historically low and variable productivity and limiting biophysical characteristics. To support future agricultural management and policy decisions in Nebraska, U.S.A, it is important to understand where cropland is marginal for its two most economically important crops: corn (Zea mays) and soybean (Glycine max). As corn and soybean are frequently planted in a crop rotation, it is important to consider if there is a relationship with cropland marginality. Based on the current literature, there exists a need for a flexible yet robust methodology for identifying marginal land at different scales, which takes advantage ...


Identification And Analysis Of The Contribution Of Various Sources Of Total Dissolved Solids (Tds) In Lake Elsinore Potable Water And Wastewater, Lenai Hunter 2022 California State University, San Bernardino

Identification And Analysis Of The Contribution Of Various Sources Of Total Dissolved Solids (Tds) In Lake Elsinore Potable Water And Wastewater, Lenai Hunter

Electronic Theses, Projects, and Dissertations

Total Dissolved Solids (TDS) are primarily inorganic salts that can pass through a 2-micron (or smaller) filter and, when found in high concentrations, can cause adverse effects on aquatic organisms and the surrounding environment. The agency servicing Lake Elsinore and surrounding areas is the Elsinore Valley Municipal Water District (EVMWD). EVMWD’s wastewater treatment facilities are not equipped to remove TDS from the wastewater. Therefore, the influent TDS values are often similar to the final treated effluent recycled water TDS values. EVMWD has permit limits at the wastewater treatment plants relating to TDS, and due to the higher influent TDS ...


Using A Geospatial Analysis Tool To Visualize Water Impairments And Engage Stakeholders In The San Bernardino National Forest, Jovany Estrada 2022 California State University, San Bernardino

Using A Geospatial Analysis Tool To Visualize Water Impairments And Engage Stakeholders In The San Bernardino National Forest, Jovany Estrada

Electronic Theses, Projects, and Dissertations

High quality water is an important resource that is integral to supporting environmental and human health. It is essential for economic, social and environmental purposes. Impairments to water resources can be attributed to anthropogenic sources that are associated with terrestrial activities including urban development and agricultural activities. Community-Based Participatory Research (CBPR) is an approach that can be used to include community input to improve water management strategies. In the San Bernardino National Forest (SBNF) area in southern California, there are disadvantaged communities that can benefit from a CBPR study to increase water quality in the area. A geovisualization tool will ...


The Effectiveness Of Best Management Practices Implemented At Lake Gregory, Crestline, Ca, Devin Darrow 2022 California State University, San Bernardino

The Effectiveness Of Best Management Practices Implemented At Lake Gregory, Crestline, Ca, Devin Darrow

Electronic Theses, Projects, and Dissertations

Water quality deterioration of recreational surface waters from excess pollution inputs is a significant concern for the health of the public and aquatic ecosystem. This study will examine the effectiveness of Best Management Practices (BMPs) in reducing pollution inputs into Lake Gregory, Crestline, CA. The effectiveness of the BMPs was examined by testing for water quality parameters including dissolved oxygen, temperature, pH, conductivity, turbidity, nitrate (NO3-), ammonium (NH4+), total coliform, and Escherichia coli on weekly to bi-weekly basis for a period of 1 year. A statistical analysis involving descriptive statistics, Pearson’s correlation, the Efficient Ratios (ER) and Percent Removal ...


Big Business, Small Plastic, Hannah Johnson 2022 University of Rhode Island

Big Business, Small Plastic, Hannah Johnson

Senior Honors Projects

No abstract provided.


Rivers As International Borders: A Comparison Of How Social-Political Factors Have Impacted Natural Resources In The Usumacinta River Basin And Rio Grande River Basin Within The Context Of Climate Change, Anna A. Flores 2022 Texas A&M University-San Antonio

Rivers As International Borders: A Comparison Of How Social-Political Factors Have Impacted Natural Resources In The Usumacinta River Basin And Rio Grande River Basin Within The Context Of Climate Change, Anna A. Flores

Water Resources Science and Technology Theses and Graduate Research Reports

Along transboundary river borders in North and Central America social-political factors such as conservation, militarization, and migration impact natural resources leaving the United States, Mexico, and Guatemala at risk of ecological decline due to the changing climate. I present a qualitative case study comparing the social-political factors and their impact on natural resources in the Usumacinta River Basin (URB) and Rio Grande River Basin (RGRB). A comprehensive evaluation of social-political factors is performed starting from the 19th century to the current era. I contribute to the field of environmental sociology by extending Laako and Kauffer’s (2022) work on eco-frontiers ...


Aflatoxin In Dairy Cattle Water Troughs, Julie A. Scott 2022 Texas A&M University-San Antonio

Aflatoxin In Dairy Cattle Water Troughs, Julie A. Scott

Water Resources Science and Technology Theses and Graduate Research Reports

One of the most commonly found mycotoxins, aflatoxin, has been an emerging concern for the milk and dairy industry and a continued concern for the human food supply and cattle feed industry. There is a possibility of this carcinogenic mycotoxin being found in water and several studies have found them in water storage tanks, treated wastewater systems, and even in bottled water. With the potential presence in water, this study explores the possibility of aflatoxin in water troughs found on dairy farms which could be one of the exposures to cattle linked to causing aflatoxin in milk. Trough water samples ...


The Impact Of Water Infrastructure Inequality On Marginalized Communities, Indra Khalsa 2022 University of Tennessee at Chattanooga

The Impact Of Water Infrastructure Inequality On Marginalized Communities, Indra Khalsa

Honors Theses

America’s current system of water infrastructure poses a threat not only to the environment but also to public health. The water crisis reveals the stark inequalities that exist from both an environmental justice and a social justice perspective. There is a growing concern that without adequate investment from federal resources, the problems related to this issue will only worsen the longer they are neglected. There is little information about how specific environmental and social factors combine with water infrastructure to create long-term infrastructure inequalities. However, this thesis explores the disparities in water infrastructure affordability, vulnerability patterns, and environmental hazards ...


Characterization Of Water Flow And Solute Transport Driven By Preferential Flow In Soil Vadose Zone, Abdullah Al Mamun 2022 Clemson University

Characterization Of Water Flow And Solute Transport Driven By Preferential Flow In Soil Vadose Zone, Abdullah Al Mamun

All Dissertations

The vadose zone acts as a buffer zone between the ground surface and the aquifers underneath and controls the transmission of infiltrating water and contaminants, for example, pesticides and chemical spills. Therefore, understanding the flow and transport processes that dominate the vadose zone is important. Macropores are ubiquitous and particularly found in abundance in the vadose zone. These macropores facilitate preferential flow, through which water travels rapidly deep into the soil, bypassing most of the porous matrix. Preferential flow and transport have environmental significance as their processes impact hydrology, ecology, agriculture, subsurface contamination, and waste management sectors. Thus, the overall ...


Floating Treatment Wetlands For Brackish Waters: Plant Selection And Nutrient Uptake Potential., Andrea Landaverde 2022 Clemson University

Floating Treatment Wetlands For Brackish Waters: Plant Selection And Nutrient Uptake Potential., Andrea Landaverde

All Theses

Brackish water bodies in coastal regions provide critical ecosystem services that support human and environmental health. Anthropogenic activities such as agricultural and industrial activities, construction, urban settlements, and tourism contribute to increased inputs of nitrogen (N) and phosphorus (P) in brackish coastal ecosystems. Excess nutrients can lead to impaired water quality and affect marine organisms. Floating treatment wetlands (FTWs) are a vegetated-base technology used to remove contaminants from water column, that has been mainly studied and applied in freshwater systems. Application of FTWs in brackish systems requires further investigation, as high salinity in brackish waters could result in toxicity to ...


Point Of Use Technologies To Increase Access To Clean Water In Rural Communities, Elena Arroway 2022 University of Denver

Point Of Use Technologies To Increase Access To Clean Water In Rural Communities, Elena Arroway

Undergraduate Theses, Capstones, and Recitals

Access to clean water is an issue that many communities around the world struggle with. While large-scale efforts such as piping infrastructure have been successful, these are less effective at reaching small, rural communities. To supplement these efforts, point of use (POU) methods for water treatment can be implemented. These include boiling, chemical treatment, filters, and several additional technologies. These have all shown effectiveness in a lab setting, but their implementation in the real world, specifically in rural communities, has not been nearly as effective. In this paper, several different POU methods are evaluated for their effectiveness on a small-scale ...


Changes In Western U.S. Streamflow Extremes Under Climate Change, Rama Bedri 2022 Chapman University

Changes In Western U.S. Streamflow Extremes Under Climate Change, Rama Bedri

Student Scholar Symposium Abstracts and Posters

We are analyzing streamflow extremes in Western U.S. rivers due to climate change. Global warming causes natural disasters to reach extreme points and affects river volumes, snowfall, and precipitation amounts. We analyze the data for 17 stations in the Colorado River Basin, whose rivers provide Southern California’s drinking water supply. Disruptions in streamflow due to climate change affect the region’s water availability and make it difficult to predict future trends. We compared historical streamflow data to eight possible climate scenarios. The different scenarios are Warm Dry, Cool Wet, Average, and Other at emission levels of RCP 4 ...


It’S Art About Water Treatment! An Interview With Mallory Chaput, The Artist Inspiring Future Water Leaders-One Artwork At A Time, Swati Hegde 2022 University of Pennsylvania, Philadelphia

It’S Art About Water Treatment! An Interview With Mallory Chaput, The Artist Inspiring Future Water Leaders-One Artwork At A Time, Swati Hegde

wH2O: The Journal of Gender and Water

This article throws a spotlight on Mallory Chaput, an artist inspiring future water leaders to take up water careers. Through her coloring pages, paintings, and comics about the water treatment, Mallory is helping children re-imagine the water sector. Originally a landscaper, Mallory developed a profound interest in water and wastewater treatment and learned about it by visiting plants, talking to professionals, and studying engineering books. This article is a transcript of an interview with Mallory, featuring her background, her imaginative creations and her future goals.


Where There Are No Sewers: The Toilet Cleaners Of Lucknow, Sharada Prasad, Isha Ray 2022 Infosys

Where There Are No Sewers: The Toilet Cleaners Of Lucknow, Sharada Prasad, Isha Ray

wH2O: The Journal of Gender and Water

Enormous progress has been made in the global effort to provide safe and affordable toilets for the world’s poorest citizens since World Toilet Day was first declared in 2001. Significant strides have been made in “reinventing” toilet designs for low-income, water-short, un-sewered urban zones; celebrities such as Bill Gates and Matt Damon have brought this once-taboo topic into the open; and the Prime Minister of India – the country with the highest number of people still practicing open defecation – has publicly declared that his country needs toilets over temples.

Well over 2 billion people today lack access to basic sanitation ...


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