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2-Butanone and tetrahydrofuran contamination in the water supply
Title
2-Butanone and tetrahydrofuran contamination in the water supply.
Creator
Wang, Tsen C., Bricker, J. L., Harbor Branch Oceanographic Institute
Date Issued
1979
PURL
http://purl.flvc.org/FCLA/DT/3176699
Subject Headings
Water supply, Leaching, Butanone, Butanone --Toxicology, Tetrahydrofuran, Water contamination
Format
Document (PDF)
A lime softening system for individual-household use powered by solar energy
Title
A lime softening system for individual-household use powered by solar energy.
Creator
Slater-Williams, Alexandria, Abtahi, Homayoon, Florida Atlantic University, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
A study conducted by the World Health Organization and United Nations Children's Fund, concluded that approximately 768 million people worldwide are not receiving sanitary drinking water suitable for consumption. While there are many water treatment methods, lime softening proves to be one of the more effective approaches as it removes a wide variety of harmful compounds including arsenic, lead, mercury, and cadmium under the correct conditions. The greatest issues with lime softening on a...
Show moreA study conducted by the World Health Organization and United Nations Children's Fund, concluded that approximately 768 million people worldwide are not receiving sanitary drinking water suitable for consumption. While there are many water treatment methods, lime softening proves to be one of the more effective approaches as it removes a wide variety of harmful compounds including arsenic, lead, mercury, and cadmium under the correct conditions. The greatest issues with lime softening on a smaller scale include the complexity of the chemistry and need for monitoring. By designing the system for groundwater sources and with a smaller capacity, this thesis hoped to reduce the level of monitoring, chemical expertise, and cost needed for operation. While promising results occurred in the removal of arsenic and total hardness, this project was unable to obtain consistent results and final water samples with pH values between the recommended standard of 6.5 to 8.
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Date Issued
2015
PURL
http://purl.flvc.org/fau/fd/FA00004412, http://purl.flvc.org/fau/fd/FA00004412
Subject Headings
Solar energy -- Economic aspects, Water -- Purification, Water -- Purification Water -- Softening, Water quality management, Water supply -- Design and construction, Water supply engineering
Format
Document (PDF)
Human powered reverse osmosis for providing portable water for developing countries
Title
Human powered reverse osmosis for providing portable water for developing countries.
Creator
Drake, Dustin, Su, Tsung-Chow
Date Issued
2012-04-06
PURL
http://purl.flvc.org/fcla/dt/3348818
Subject Headings
Drinking water --Health aspects, Water-supply, Reverse osmosis, Manually operable reverse osmosis apparatus, Developing countries, Human powered water purification
Format
Document (PDF)
Beyond Water Restrictions: Informing Effective Lawn Watering Behavior
Title
Beyond Water Restrictions: Informing Effective Lawn Watering Behavior.
Creator
Survis, Felicia D., Root, Tara L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
Evaluating trends of historical rainfall on a weekly and seasonal basis is needed for optimizing the design and implementation of lawn water conservation strategies like outdoor water restrictions. While “day of the week” water restrictions are a typical strategy to limit the frequency and duration of urban lawn water use, they may not necessarily result in more conservative behaviors from end-users. Because weekly rainfall and local climate variables are seldom taken into account in water...
Show moreEvaluating trends of historical rainfall on a weekly and seasonal basis is needed for optimizing the design and implementation of lawn water conservation strategies like outdoor water restrictions. While “day of the week” water restrictions are a typical strategy to limit the frequency and duration of urban lawn water use, they may not necessarily result in more conservative behaviors from end-users. Because weekly rainfall and local climate variables are seldom taken into account in water restriction strategies, they are not connected to actual lawn water demand. However, since lawn water demand is directly related to weekly rainfall totals, not to a particular number of watering days per week, water restriction schedules have the potential to unintentionally promote overwatering. This study investigated the weekly patterns of average seasonal rainfall and evapotranspiration in South Florida to determine the typical variability of weekly net irrigation needs and found that typical wet season weekly rainfall often provides a significant amount of water to meet the demand of residential lawns and landscapes. This finding underscores opportunity to reduce supplemental overwatering in residential landscapes if watering guidelines were modified to recognize seasonal average weekly rainfall in this region This study also tested a rainfall-based water conservation strategy to determine if providing residents with information about how local rainfall could promote more effective lawn watering behavior than just water restrictions alone. Experimental households reduced lawn water use by up to 61% compared to the control group by the end of the study. These results demonstrate that the neighborhood “rain-watered lawn” signs helped experimental study group households become more aware of rainfall as the primary input of water to their lawns. This study also investigated the role that lawn irrigation from self-supplied sources plays in the urban lawn water demand and investigates how the lawn water use and lawn watering behaviors of households that source from self-supply differ from those who source from the public supply.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004710
Subject Headings
Landscape irrigation, Municipal water supply, South Florida Water Management District, Water conservation, Water consumption, Water resources development
Format
Document (PDF)
Predicting removal efficiency of reverse osmosis membranes with respect to emerging substances of concern using a discriminant function analysis
Title
Predicting removal efficiency of reverse osmosis membranes with respect to emerging substances of concern using a discriminant function analysis.
Creator
Pleitez Herrera, Fernando J., College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description
This paper presents the results of the spike tests performed in the alternative water supply pilot testing program for the City of Pembroke Pines. It establishes the effectiveness of a protocol that can be used to gain further insight on the rejection capacities of RO membranes. An in-depth study of the molecular descriptors affecting rejection by RO membranes is presented and used in the development of a discriminant function analysis. This analysis proved to be an effective way to predict...
Show moreThis paper presents the results of the spike tests performed in the alternative water supply pilot testing program for the City of Pembroke Pines. It establishes the effectiveness of a protocol that can be used to gain further insight on the rejection capacities of RO membranes. An in-depth study of the molecular descriptors affecting rejection by RO membranes is presented and used in the development of a discriminant function analysis. This analysis proved to be an effective way to predict the passage of Emerging Substances of Concern (ESOCs) through RO membrane. Further, a principal component (PC) analysis was performed to determine which factors accounted the largest variation in RO permeability. Additionally, this paper defines the groundwork for a discriminant analysis model that, if further developed, could serve as an important tool to predict the rejection capabilities of RO treatment when handling with ESOCs.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3355869
Subject Headings
Membranes (Technology), Water, Purification, Reverse osmosis process, Industrial water supply, Water, Pollution, Chemoinformatics
Format
Document (PDF)
Population distribution analysis for water supply planning, using textural image classification of SPOT data in an integrated Geographical Information Systems (GIS)
Title
Population distribution analysis for water supply planning, using textural image classification of SPOT data in an integrated Geographical Information Systems (GIS).
Creator
Poudratchi, Ahmad., Florida Atlantic University, Roberts, Charles, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
Protecting Natural Resources, such as drinking water in terms of quality and quantity, is one of the missions of South Florida Water Management District (SFWMD). Water Supply Planning is one of the many projects at the Planning Department of the SFWMD, in which sixteen counties are analyzed to determine the most accurate population distribution for water supply distribution among the water utility companies. This thesis examines the current methodology which is used at the SFWMD, and...
Show moreProtecting Natural Resources, such as drinking water in terms of quality and quantity, is one of the missions of South Florida Water Management District (SFWMD). Water Supply Planning is one of the many projects at the Planning Department of the SFWMD, in which sixteen counties are analyzed to determine the most accurate population distribution for water supply distribution among the water utility companies. This thesis examines the current methodology which is used at the SFWMD, and addresses its shortcomings. It then introduces a proposed methodology, to improve population distribution analysis, by incorporating satellite imagery. Textural classification of satellite imagery will be used to extract residential neighborhoods from non-residential areas. The resultant residential areas, which is in the form of raster data, then will be converted to a vector coverage to be utilized as an additional source of data. Incorporating satellite imagery eliminates the assumption of homogenous population distribution, which the current methodology is based on and consequently, leads to a more accurate population distribution methodology.
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Date Issued
1996
PURL
http://purl.flvc.org/fcla/dt/15254
Subject Headings
Water-supply--Florida--Statistics, Florida--Population--Statistics, Geographic information systems, South Florida Water Management District
Format
Document (PDF)
evaluation of the certainty of system performance measures generated by the South Florida Water Management Model
Title
An evaluation of the certainty of system performance measures generated by the South Florida Water Management Model.
Creator
Trimble, Paul Joseph., Florida Atlantic University, Scarlatos, Panagiotis (Pete) D., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
The South Florida Water Management Model was developed to evaluate proposed alternatives for the south Florida regional hydrologic system. The degree of certainty of the computed system performance measures is required to correctly apply these measures for evaluation and selection of appropriate water resources policies and investments. Initially, a sensitivity matrix is defined which summarizes the model output sensitivity to incremental changes of key parameters. The method of singular...
Show moreThe South Florida Water Management Model was developed to evaluate proposed alternatives for the south Florida regional hydrologic system. The degree of certainty of the computed system performance measures is required to correctly apply these measures for evaluation and selection of appropriate water resources policies and investments. Initially, a sensitivity matrix is defined which summarizes the model output sensitivity to incremental changes of key parameters. The method of singular value decomposition is applied to the sensitivity matrix to better understand relations between parameters and output variables. Finally, parameter uncertainty is compared to that of total predictive uncertainty of the system performance measures.
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Date Issued
1995
PURL
http://purl.flvc.org/fcla/dt/15200
Subject Headings
Hydrologic models, Water conservation--Florida, Water supply--Florida, Water quality management--Florida, South Florida Water Management District
Format
Document (PDF)
Comparing salinity models in Whitewater Bay using remote sensing
Title
Comparing salinity models in Whitewater Bay using remote sensing.
Creator
Selch, Donna, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
This study compared models that used remote sensing to assess salinity in Whitewater Bay. The quantitative techniques in this research allow for a less costly and quicker assessment of salinity values. Field observations and Landsat 5 TM imagery from 2003-2006 were separated into wet and dry seasons and temporally matched. Interpolation models of Inverse Distance Weighting and Kriging were compared to empirical regression models (Ordinary Least Squares and Geographically Weighted Regression -...
Show moreThis study compared models that used remote sensing to assess salinity in Whitewater Bay. The quantitative techniques in this research allow for a less costly and quicker assessment of salinity values. Field observations and Landsat 5 TM imagery from 2003-2006 were separated into wet and dry seasons and temporally matched. Interpolation models of Inverse Distance Weighting and Kriging were compared to empirical regression models (Ordinary Least Squares and Geographically Weighted Regression - GWR) via their Root Mean Square Error. The results showed that salinity analysis is more accurate in the dry season compared with the wet season. Univariate and multivariate analysis of the Landsat bands revealed the best band combination for salinity analysis in this local area. GWR is the most conducive model for estimating salinity because field observations are not required for future predictions once the local formula is established with available satellite imagery.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3356015
Subject Headings
Water quality, Measurement, Marine ecology, Remote sensing, Electromagnetic interactions, Water-supply
Format
Document (PDF)
Residential lawn water use and lawn irrigation practices
Title
Residential lawn water use and lawn irrigation practices: Wellington, Florida.
Creator
Survis, Felicia D., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
Water conservation initiatives seldom quantify the volume of water that is at stake in lawn watering. In many communities, including those in South Florida, outdoor water use, which includes lawn irrigation, is not metered separately from indoor water use and is indistinguishable from indoor water usage. A large number of residents use self supply non-potable wells for lawn irrigation that are not regulated by the South Florida Water Management District. The result is that residential lawn...
Show moreWater conservation initiatives seldom quantify the volume of water that is at stake in lawn watering. In many communities, including those in South Florida, outdoor water use, which includes lawn irrigation, is not metered separately from indoor water use and is indistinguishable from indoor water usage. A large number of residents use self supply non-potable wells for lawn irrigation that are not regulated by the South Florida Water Management District. The result is that residential lawn water use is difficult to account for and quantify. This thesis project addressed these difficulties by combining semistructured interviews, daily watering observations and irrigation system audits to ascertain how much public supply water and self supply (well) water was being used for residential lawn irrigation. The study also examined lawn watering practices and how factors such as: precipitation, the minimum plant needs of St. Augstinegrass, and how local watering restrictions influenced watering behavior.
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Date Issued
2010
PURL
http://purl.flvc.org/FAU/2705082
Subject Headings
Lawns, Water resources development, Landscape irrigation, Water consumption, Municipal water supply
Format
Document (PDF)
Domestic Water in Northern Trinidad: Access, Collection and Quality
Title
Domestic Water in Northern Trinidad: Access, Collection and Quality.
Creator
Lakhan, Siana, Fadiman, Maria, Root, Tara L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
Trinidad is highly dependent on surface water as a source for domestic water supply. Due to lack of infrastructure some areas have limited access to potable/reliable source of water. Increases in industrialization and population are putting more pressure on water resources, exacerbating the problem. Part of this study looks at how, and from where people in different geographic regions in northern Trinidad collect and store water. Results indicate that urban areas rely on public water as a...
Show moreTrinidad is highly dependent on surface water as a source for domestic water supply. Due to lack of infrastructure some areas have limited access to potable/reliable source of water. Increases in industrialization and population are putting more pressure on water resources, exacerbating the problem. Part of this study looks at how, and from where people in different geographic regions in northern Trinidad collect and store water. Results indicate that urban areas rely on public water as a water source. The urban fringe relies on a public water supply as well as self-supplied sources. Rural regions depend solely on a selfsupply source. Also, I look at how nitrate and nitrite concentrations in drinking water vary with geographic location. Results indicate water quality varies with source and collection method. Further research is needed to confirm this.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00000785
Format
Document (PDF)