Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 26 of 26
Full-Text Articles in Engineering
The Effects Of Plain Sedimentation On The Quality Of Urban Stormwater Runoff From The Lake Eola Watershed, Victor Julius Godlewski
The Effects Of Plain Sedimentation On The Quality Of Urban Stormwater Runoff From The Lake Eola Watershed, Victor Julius Godlewski
Retrospective Theses and Dissertations
The settling characteristics of urban stormwater runoff emanating from the Lake Eola Watershed (Orlando, Florida) were evaluated through a series of 7 column studies. The percentage removal that occurred due to sedimentation was observed for various stormwater pollutants and constituents. These included the General Water Quality Parameters: Total Suspended Solids, Non-volatile Suspended Solids, Volatile Suspended Solids, Chemical Oxygen Demand, Total Kjeldahl Nitrogen, Ammonia Nitrogen, Total Organic Carbon, and Total Phosphorus. The metals parameters: Zinc, Cadmium, Arsenic, Nickel, Copper, Magnesium, Iron, Lead, Chromium and Calcium were also considered. The results of the settling analysis indicates that the quality of Lake Eola …
Analysis Of Traffic Accidents At Daytona Beach In Volusia County, State Of Florida, Mohammad Reza Hajian
Analysis Of Traffic Accidents At Daytona Beach In Volusia County, State Of Florida, Mohammad Reza Hajian
Retrospective Theses and Dissertations
Anyone who has been tempted to cross a beach or walk along a beach is aware of the potential conflicts that can arise between pedestrians and vehicles. The competing use of the beach space results in conflicts between vehicles and pedestrians; many times the pedestrian's disregard for signed pedestrian safety provisions in the close vicinity and on the space allocated for car lanes results in avoidable conflicts. This report addresses the pedestrian and vehicle interaction at Daytona Beach in Volusia County of the State of Florida. This report has consolidated accident data for the period January 1, 1977 through July …
Reliability Analysis Of Emergency Telephone System Models, Thomas J. Hobbs
Reliability Analysis Of Emergency Telephone System Models, Thomas J. Hobbs
Retrospective Theses and Dissertations
Several alternate systems for use in implementing the 911 emergency system in Orange County, Florida were investigated. The proposed systems were compared with the already existing systems on the basis of reliability, response time, and cost. System reliability was the prime consideration of the study. Flow charts of each system were formulated in order to determine the functions required of equipment and humans. The reliability was then determined by examining the difficulty of the tasks that each was required to perform. Reliability models of the present and proposed systems were constructed. By examining these models and comparing the reliabilities, response …
The Effect Of Ozone On Trihalomethane Precursors In Raw And Magnesium Treated Lake Washington Water, James Kent Kimes
The Effect Of Ozone On Trihalomethane Precursors In Raw And Magnesium Treated Lake Washington Water, James Kent Kimes
Retrospective Theses and Dissertations
A bench scale laboratory ozonator was constructed and determined to produce 27 mg O3/hr. A contacting system and experimental procedure was developed to approximate a mass balance of 0, 1, 2, 4, 8 and 16 ppm were applied to raw and magnesium treated water from Lake Washington which is the potable water source for Melbourne, Florida. The effect of ozone on trihalomethane precursors was studied by comparing THM formation at 1, 24, 48, 72, and 96 hours following chlorination. The concentrations of each specie, chloroform, bromodichloromethane, dibromochlormethane and bromoform are reported. The highest 96 hour TTHM concentrations reported were 2773 …
Ecological Responses Of Lake Eola To Urban Runoff, Harvey H. Harper Iii
Ecological Responses Of Lake Eola To Urban Runoff, Harvey H. Harper Iii
Retrospective Theses and Dissertations
Lake Eola is a land-locked lake located in downtown Orlando, Florida. Its surface area is approximately 27.0 acres (11.0 Ha) and water depth is 2 to 3 feet (0.6 to 0.9 meters) near the shore and 22 feet (6.7 meters) toward the center. Periodical water samples were collected from the lake and storm drains for various stormwater events and physiochemical parameters were analyzed to calculated loading rates from nutrients and heavy metals released to Lake Eola. Algal bioassay studies were performed to investigate stormwater impacts on productivity. Periodical water samples were collected from the lake mixed and filtered for limiting …
Scrubber Design For Phosphoric Acid Production Facility, Edward E. Mayer
Scrubber Design For Phosphoric Acid Production Facility, Edward E. Mayer
Retrospective Theses and Dissertations
This report is an examination of the practical design of a phosphoric acid production facility wet scrubber. It includes a brief background of the Florida Phosphate Industry, in addition to the rules and regulations affecting the emission of fluoride contaminates. The theoretical aspects of a packed absorption tower is discussed prior to the actual design of a cross-flow wet scrubber of the type typically found in the Florida Phosphate Industry.
Heavy Metals In The Water And Wastewater Systems Of The University Of Central Florida, William Keith Mccully
Heavy Metals In The Water And Wastewater Systems Of The University Of Central Florida, William Keith Mccully
Retrospective Theses and Dissertations
In large enough quantities, heavy metals may be detrimental to human health. Metals in raw water may pass through a water treatment plant without being completely removed. Once in a the distribution system, the water may experience metal pick-up due to corrosion. During the course of this study, an attempt was made to determine the heavy metal concentrations in the University of Central Florida's potable water systems. Samples were fun on the plasma spectrophotometer, Spectraspan III, and analyzed for heavy metal content. The results indicate pick-up of Fe, Al, Cu, and Zn in the distribution system. The arsenic and lead …
Treatment And Disposal Of Hazardous Wastes In The East Central Florida Region, Tracey Bell
Treatment And Disposal Of Hazardous Wastes In The East Central Florida Region, Tracey Bell
Retrospective Theses and Dissertations
Although the East Central Florida area is not heavily industrialized, its dependence on groundwater resources makes it especially vulnerable to contamination by poor waste disposal practices. The East Central Florida area was studied to discover the nature and disposal of hazardous wastes generated. It was found that a large portion of hazardous wastes in the region were from very small industries, distributors, and even consumers. Three of the most toxic and/or voluminous waste problems in the area--metal plating wastes, pesticide wastes, and hospital wastes--were studied to determine available alternatives for disposal and their costs.
Phosphorus Content And Release From Lake Sediments By Agitation, Hsien Ping Tang
Phosphorus Content And Release From Lake Sediments By Agitation, Hsien Ping Tang
Retrospective Theses and Dissertations
Man-made mixing in shallow lakes will resuspend bottom sediments and increase phosphorus concentration in the water body. The increase in phosphorus content may affect the lake productivity. During the course of this study, a better understanding of the water-sediment-phosphorus relationships of some shallow lakes in Central Florida was attempted. Column studies and batch experiments were used to investigate the effect of mechanical mixing on the release of phosphorus from bottom sediments collected from Lake Claire and Jessup. The particle size distribution and density distribution of the bottom sediments were studied and the release of phosphorus from each fraction was measured. …
Sediment Resuspension Due To Waves Generated By Recreational Motorboats In Shallow Lakes, Carl R. Larrabee
Sediment Resuspension Due To Waves Generated By Recreational Motorboats In Shallow Lakes, Carl R. Larrabee
Retrospective Theses and Dissertations
Sediment resuspension due to the operation of recreational motorboats in shallow lakes was investigated. Boats equipped with 28, 50, 85, 120, and 165 horsepower engines were used for this study on Lake Claire, Florida Technological University campus, and Lake Mizell, the City of Winter Park, located in Orange County, Central Florida. Grasshopper Lake was also a test site due to its clarity for underwater photography. These motorboats were run at different speeds and water depths and the induced pressure waves on the lake bottom were measured using a hydrophone and recording system. Primary and secondary wave amplitudes and frequencies were …
Application Of Fire Protection Models In Urban Planning, Ronald George Thomas
Application Of Fire Protection Models In Urban Planning, Ronald George Thomas
Retrospective Theses and Dissertations
No abstract provided.
A Review Of Municipal Services Provided By The City Of Lakeland, Roberto Ignacio Pedroso
A Review Of Municipal Services Provided By The City Of Lakeland, Roberto Ignacio Pedroso
Retrospective Theses and Dissertations
For this report, four municipal services provided by the City of Lakeland were studied. The environmental impact of these services was discussed. Recommendations were made for solutions to problems found. It was found that the water supply services has on deleterious impact on the environment. Hydrogen sulfide occasionally found in the water supply gives the latter objectionable odor and taste. Installation of a centralized water treatment plant with aeration facilities for hydrogen sulfide removal was recommended for resolution of the problem. The waste water treatment plant removes 91% of the BOD5 and the suspended solids in the plant influent. The …
Spruce Creek Watershed Non-Point Source Loading Model, James L. Smoot
Spruce Creek Watershed Non-Point Source Loading Model, James L. Smoot
Retrospective Theses and Dissertations
The pollutant transport from watershed to receiving waters is modeled for Spruce Creek basin. The data requirements for such a model are: daily rainfall; monthly lake evaporation; soil and land use breakdown; water quality history for the main indicators, total nitrogen, total phosphorus, suspended solids, and total organic carbon; surface flow and interflow delay coefficients; channel flow time; daily flow gage records; and channel flow characteristics. The model uses the SCS runoff curve number method to generate rainfall excess where the antecedent conditions are varied daily by a water budget analysis. The direct runoff is delayed and routed by the …
Computer Simulation Of 911 Emergency Telephone System For Orange County, Florida, Ronald J. Veillette
Computer Simulation Of 911 Emergency Telephone System For Orange County, Florida, Ronald J. Veillette
Retrospective Theses and Dissertations
The State of Florida has mandated that a statewide 911 system be implemented, and the Department of General Services, Division of Communications, has performed a study of possible 911 system configurations for Orange County based on the findings of a study performed by the Stanford Research Institute for the whole of the State of Florida. The Orange County study determined operator manning levels of the primary law enforcement agencies involved in the system and response times to citizen calls for each of the configurations proposed. This research generated computer simulation models of the two most likely to be implemented configurations …
Mass Loadings Of Selected Water Quality Parameters For The State Of Florida, Charles D. Miller
Mass Loadings Of Selected Water Quality Parameters For The State Of Florida, Charles D. Miller
Retrospective Theses and Dissertations
The mass loadings of pollutants common in surface waters result from the discharges of many different sources. In the last few years it has been noted that nonpoint sources contribute more pollutants than point sources. This is because in many cases the point source discharges have been, by law, reduced drastically. In the State of Florida many water quality parameters were examined to estimate the mass loadings in streams related to, drainage area, average flow, land use, soil type and management practices. A total of sixteen streams were examined. The information was first calculated for mass loadings as a function …
Stormwater Infiltration Thru Sewer Lines In Brevard County, Florida, Robert Earl Stubbe
Stormwater Infiltration Thru Sewer Lines In Brevard County, Florida, Robert Earl Stubbe
Retrospective Theses and Dissertations
This is a broad study of stormwater infiltration and inflow effects on two sewer systems with an equivalent size for comparison in Brevard County, Florida. The systems are Rockledge, which is located on the highest ground in the area, and Cocoa Beach, which is located down in the local water table. Rainfall data, sewage flow, quality, and flow rates were collected from the Brevard Public Health Department, Cocoa Beach and Rockledge sewage Plants, weather stations, and the Cocoa Water plant. The data indicated minimum, or no infiltration thru the Rockledge wastewater collection system. However, infiltration thru the Cocoa Beach system …
Seminole County, Florida Solid Waste Management Plan, Paul A. Magnant
Seminole County, Florida Solid Waste Management Plan, Paul A. Magnant
Retrospective Theses and Dissertations
The Seminole County, Florida solid waste transportation network was examined to determine alternate locations of transfer stations. The scope of this study is limited to transportation and assumed disposal costs. Collection costs are not included. Review of past generation records was conducted and a per capita generation rate of 4 lbs/day was determined. This compared favorably to a 4.06 lbs/day for Orange and Brevard County. The cost per ton for the present solid waste management system was computed and compared to alternative systems. The present system was compared to several alternatives by altering the number and changing the locations of …
A Study Of Differences In Vertical Phosphorus Profiles Within The Sediments Of Selected Florida Lakes As Related To Trophic Dynamics, Edgar Allen Stewart Iii
A Study Of Differences In Vertical Phosphorus Profiles Within The Sediments Of Selected Florida Lakes As Related To Trophic Dynamics, Edgar Allen Stewart Iii
Retrospective Theses and Dissertations
Several Florida lakes with different documented trophic state indices were selected for sediment analysis. Vertical sections of the sediment were taken at depths of .1, .5, 1, 2, 3, 4, 5, 6, 10 and l5 centimeters below the surface of the sediment-water interface. Total Phosphorus analysis was done on each section. The profile presented was then evaluated and was found that the profiles best fit the equation Y = X/ (A + BX), where Y is the Phosphorus Concentration in ppm and X is the sediment depth in cm. Correlation between the trophic state and the profiles characteristics are presented. …
Stormwater Runoff From Shopping Centers, Thomas P. Donigan
Stormwater Runoff From Shopping Centers, Thomas P. Donigan
Retrospective Theses and Dissertations
This is a brief investigation of stormwater runoff from a large shopping center located in Brevard County, Florida. Merritt Square Shopping Center has a parking area for 4,700 automobiles and is located on the shore of Newfound Harbor which is classified as recreation waters (Class III). A literature survey of runoff studies in other areas has been made for both "state of the art" and evaluation of findings. Water samples were initially collected from five locations. Review of the analysis of these samples indicated that while color and turbidity appeared to decrease linearly with time, organic and inorganic concentrations did …
Lake County, Florida Solid Waste Management Plan, Lawrence J. Morey
Lake County, Florida Solid Waste Management Plan, Lawrence J. Morey
Retrospective Theses and Dissertations
The history of solid waste management in Lake County, Florida is reviewed. The role of governmental agencies is mentioned. Local environmental characteristics and transportation systems are discussed. Existing collection and disposal practices are presented. A land use analysis of the unincorporated areas of the County is given. Projections of population and solid waste quantities are listed. Two computer models are presented. Their optimum solutions are analyzed in detail. The cost associated with implementing either plan is presented. A recommended plan is given based on a combination of transfer stations and sanitary landfills.
"Storm", A Mathematical Model Applied To The Shingle Creek Basin, Jay G. Foy
"Storm", A Mathematical Model Applied To The Shingle Creek Basin, Jay G. Foy
Retrospective Theses and Dissertations
Stormwater management necessitates a regional plan based on the best practical methods. "Storm", a mathematical model, is employed to simulate runoff conditions in the Shingle Creek Basin. The computed runoff quantity is calibrated directly with the streams hydrograph. Runoff quality is predicted with two sets of pollutant loading rates. The scope of the model is expanded by development of parametric curves that can be used to convert measured quality data to input land use loadings. A parametric study is also performed to fabricate the effects of urbanization on the Shingle Creek Basin.
Mixing Effects On Shallow Water Bodies, Kim Robin Powell
Mixing Effects On Shallow Water Bodies, Kim Robin Powell
Retrospective Theses and Dissertations
This report is intended to examine the ecological changes due to mixing in shallow water bodies. Physical, chemical, and biological changes are reported in literature. A literature search revealed the range of mixing nodes or processes. Assessment of ecological changes due to mixing by boating activities had been evaluated in a research project supported by the environmental Protection Agency and conducted at Florida Technological University. The examination of changes due to mechanical mixing on lake ecology simulated in fifty-five gallon drums indicated the sensitivity of such parameters as total Kjeldahl nitrogen, conductivity, pH, temperature, and dissolved oxygen. Problems of reproducibility …
Planning Programming Budgeting Study Of The City Of Winter Park, Alfred T. Sawicki
Planning Programming Budgeting Study Of The City Of Winter Park, Alfred T. Sawicki
Retrospective Theses and Dissertations
The report examines the applicability of Planning, Programming, and Budgeting System to the City of Winter Park. After briefly describing the character of the city, the goals are identified, the means by which they may be achieved and measure of evaluating progress toward them are given. To show how such an effort might be implemented, specific programs, objectives and effectiveness criteria are provided. These are followed by three examples in which the existing system is described and from which problems are revealed. Next, a brief analysis is performed to pinpoint the difficulty and a solution is proposed. The examples are …
Removal Of Color From Surface Water In Central Florida, Joseph R. Wanielista
Removal Of Color From Surface Water In Central Florida, Joseph R. Wanielista
Retrospective Theses and Dissertations
The USPHS limits color in water to 15 color units. However, it is desirable to remove all the color. Color in surface water is mainly due to humic substances and was found in concentrations varying up to 450 color units. Removal of color by coagulation and flocculation has been practiced over the years. The mechanisms involved have not yet been fully understood. During the course of this investigation, a literature survey, studying the nature of color, mechanisms or color removal, and optimum color removal conditions, has been conducted. Samples have been obtained from surface waters in Central Florida; namely Big …
Construction Systems For Detached, Single-Story Concrete Block Houses In Florida: Current Practices, Costs And Potential Innovations, Randolph Deshields Mcdonald
Construction Systems For Detached, Single-Story Concrete Block Houses In Florida: Current Practices, Costs And Potential Innovations, Randolph Deshields Mcdonald
Retrospective Theses and Dissertations
Concrete block single-story detached homes are popular residences in Florida, but construction materials and methods must undergo changes to combat rising prices and material shortages. Those systems with the greatest pressure of price or material shortage will change first. When current costs and methods are examine, it is found that two systems, roof and exterior walls, have the greatest need for changes in the immediate future; and one system, thermal insulation, needs an empirical study. The roof is of materials which are in short supply and rapidly increasing in cost. The study concludes that, with present cost trends, metal frame …
Flood Control Modeling, Peter E. Delle Donne
Flood Control Modeling, Peter E. Delle Donne
Retrospective Theses and Dissertations
This is a research report that discusses some continuous and discrete modeling techniques. The report applies these techniques to the analysis of Canal 38 (Kissimmee River) part of Central and South Florida Flood Control District. The analysis is based on recorded data for defining the physical systems parameters. Established parameters are mathematically related to define a descriptive model for Canal 38. The modeling procedure of 'trial and error' is used to assemble the model with measures of merit, the integral square error, and root mean squared error. General simulation considerations are discussed for application of the mathematical model.