The Efficacy Of Dissolved Phosphorus Removal From Urban Runoff By Sand Filtration
DOWNLOAD
Download The Efficacy Of Dissolved Phosphorus Removal From Urban Runoff By Sand Filtration PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get The Efficacy Of Dissolved Phosphorus Removal From Urban Runoff By Sand Filtration book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
The Efficacy Of Dissolved Phosphorus Removal From Urban Runoff By Sand Filtration
DOWNLOAD
Author : Patrick M. Mestas
language : en
Publisher:
Release Date : 1994
The Efficacy Of Dissolved Phosphorus Removal From Urban Runoff By Sand Filtration written by Patrick M. Mestas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Urban runoff categories.
Masters Theses In The Pure And Applied Sciences
DOWNLOAD
Author : Wade H. Shafer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Masters Theses In The Pure And Applied Sciences written by Wade H. Shafer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Design And Construction Of Phosphorus Removal Structures For Improving Water Quality
DOWNLOAD
Author : Chad J. Penn
language : en
Publisher: Springer
Release Date : 2017-07-05
Design And Construction Of Phosphorus Removal Structures For Improving Water Quality written by Chad J. Penn and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-05 with Technology & Engineering categories.
The purpose of this book is to introduce the phosphorus (P) removal structure as a new BMP for reducing dissolved P loading to surface waters from non-point source pollution, provide guidance on designing site-specific P removal structures, and provide instruction on use of the design software, “Phrog” (Phosphorus Removal Online Guidance). The book initially provides a review of the nature and sources of non-point source P pollution, examines short and long term solutions to the problem, and provides detailed theory on design and operation of the P removal structure. As with many areas of study, one of the best methods of communicating concepts is through illustrations and examples. This book is no exception; several years of experience in studying P sorption and constructing P removal structures at multiple scales and settings is utilized for providing real examples and applications. With an understanding of the P removal structure established, the reader is instructed on how to obtain all of the necessary inputs for properly designing a site-specific P removal structure for meeting a desired lifetime and performance, or predict the performance and lifetime of a previously constructed P removal structure. For the readers who already possess the Phrog design software or are interested in obtaining it, one chapter is dedicated to detailed use of the software as demonstrated with various examples of structure design and also prediction.
Slow Sand Filtration Treatment Of Agriculturally Impacted Water
DOWNLOAD
Author : Weixin Chen
language : en
Publisher:
Release Date : 2017
Slow Sand Filtration Treatment Of Agriculturally Impacted Water written by Weixin Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Agricultural runoff and influence to surface water is a widely experienced problem across the world, particularly in treating that water for potable consumption. Although many effective methods have been researched, there are few that can be considered suitable for rural regions, in-home and on-site water treatment, and extremely smallscale design without requiring significant chemical use, operator skills and sophistication, and large-scale to be economically viable. This research focuses on the use of slow sand filtration (SSF) as one of the most effective methods for potable water treatment that can meet all of the above criteria. The experiments were designed using rapid small scale column testing theory, which is a directly scalable approach to developing a robust and effective system for treating water. The SSF laboratory experiments were divided into two parts: preliminary experiments and full-scale experiments. The preliminary experiments were designed to test the removal efficiency of agriculturally-associated concentrations of orthophosphate and iron. The full-scale experiments were design simulate the realistic SSF plant which can test the removal efficiency with different concentration of additive in raw water. Raw water samples were collected from Wascana Lake as representative of complex water quality associated with both rural and urban contamination and agricultural influence. In the experiments, these raw water samples are subjected to several operational, water quality and environmental factors, including temperature, pH and filtration rate, to determine the impacts on removal efficiency and overall performance of the SSFs. The results of the preliminary experiments indicate that 25°C and alkaline conditions had the most significant impact on orthophosphate removal. Factors such as lower temperature (5°C) and acidic condition created an inhibited impact on the results, leaving higher concentration of orthophosphate in the effluent. For iron removal, the pH, temperature and filtration rate were all noted to impact removal efficiency. Higher temperature (25°C), increased alkalinity, and higher filtration rate resulted in higher effluent concentrations of iron. The results of the full-scale experiments indicate the interaction of phosphate, nitrate, iron and humic acids in SSF. The data show that increasing phosphate and nitrate in the raw water can slightly improve the performance of nitrate and phosphate removal but no obvious effect in humic acids and iron removal. The higher iron concentration can help improve humic acids removal. The experimental results clearly demonstrate that temperature and pH control in water treatment design are essential for high performance and robust and reliable production of high quality potable water.
Process Design Manual For Phosphorus Removal
DOWNLOAD
Author : Shimek, Roming, Jacobs, and Finklea (Firm)
language : en
Publisher:
Release Date : 1976
Process Design Manual For Phosphorus Removal written by Shimek, Roming, Jacobs, and Finklea (Firm) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Eutrophication categories.
Phosphorus Polluter And Resource Of The Future
DOWNLOAD
Author : Christian Schaum
language : en
Publisher: IWA Publishing
Release Date : 2018-03-15
Phosphorus Polluter And Resource Of The Future written by Christian Schaum and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-15 with Science categories.
This comprehensive book provides an up-to-date and international approach that addresses the Motivations, Technologies and Assessment of the Elimination and Recovery of Phosphorus from Wastewater. This book is part of the Integrated Environmental Technology Series.
Urban Runoff Quality Management
DOWNLOAD
Author : Water Environment Federation
language : en
Publisher: ASCE Publications
Release Date : 1998-01-01
Urban Runoff Quality Management written by Water Environment Federation and has been published by ASCE Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-01-01 with Technology & Engineering categories.
This manual comprises a holistic view of urban runoff quality management. For the beginner, who has little previous exposure to urban runoff quality management, the manual covers the entire subject area from sources and effects of pollutants in urban runoff through the development of management plans and the design of controls. For the municipal stormwater management agency, guidance is given for developing a water quality management plan that takes into account receiving water use objectives, local climatology, regulation, financing and cost, and procedures for comparing various types of controls for suitability and cost effectiveness in a particular area. This guidance will also assist owners of large-scale urban development projects in cost-effectively and aesthetically integrating water quality control to the drainage plan. The manual is also directed to designers who desire a self-contained unit that discusses the design of specific quality controls for urban runoff.
The Effectiveness Of Specifically Designed Filter Media To Reduce Nitrate And Orthophosphate In Stormwater Runoff
DOWNLOAD
Author : Mikhal Moberg
language : en
Publisher:
Release Date : 2008
The Effectiveness Of Specifically Designed Filter Media To Reduce Nitrate And Orthophosphate In Stormwater Runoff written by Mikhal Moberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Denitrification categories.
Throughout Central Florida surface water and ground water are decreasing in quantity and quality in part because of excess Nitrate and Phosphorus nutrients. Stormwater runoff serves as a medium for transport of Nitrate and Phosphorus to surface water and ground water. The goal of this experiment is assess the Nitrate and Phosphorus removal in stormwater using select media. The results of a literature search, batch test experimentation and column test experimentation are used to determine an optimal media blend that may be implemented in detention ponds to reduce Nitrate and Phosphorus. The extensive literature search revealed 32 different media that may be used to remove Nitrate and Phosphorus. Each potential media was qualitatively and quantitatively evaluated based on 5 criteria: 1) relevance, 2) permeability, 3) cost, 4) availability in Florida, and 5) additional environmental benefit. The top 7 performing media: Florida peat, sandy loam, woodchips, crushed oyster shell; crushed limestone, tire crumb and sawdust were selected for batch test experimentation. The aerobic conditions in batch test experimentation prohibited the growth of denitrifying bacteria, therefore media mixes were selected for column test experimentation based on Ammonia and Orthophosphate concentrations. Batch test experimentation showed the most effective media to be 50% sand, 30% tire crumb, 20% sawdust by weight (media mix 1) and 50% sand, 25% sawdust, 15% tire crumb, 10% limestone by weight (media mix 2). Media mix 1, media mix 2 and a control are tested in column test experimentation, where the control is site soil from Hunters Trace development in Ocala, Florida. Column test experimentation models a dry detention pond where water passes through a 48 inch unsaturated zone then a 48 inch saturated zone. To test Nitrate and Orthophosphate removal potential, pond water augmented with Nitrate (0.38, 1.26, 2.5 mg/L NO3-N) and Orthophosphate (0.125, 0.361, 0.785 mg/L PO4-P) was pumped into the columns. Media mix 1 and media mix 2 outperformed the control in both Nitrate and Orthophosphate removal. Media mix 1 and media mix 2 had Nitrate removal efficiencies ranging from 60% to 99% and the control had Nitrate removal efficiencies ranging from 38%-80%. Media mix 1 and media mix 2 averaged Orthophosphate removal efficiencies ranging from approximately 42% to 67%. For every run in every influent Orthophosphate concentration the saturated control added Orthophosphate to the water. The Nitrate and Orthophosphate removal performances for media mix 1 and media mix 2 could not be directly compared because of different influent saturated nutrient concentrations.
Phosphorus Removal In Subsurface Sand Filters
DOWNLOAD
Author : Lee Alan Powell
language : en
Publisher:
Release Date : 1973
Phosphorus Removal In Subsurface Sand Filters written by Lee Alan Powell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Phosphorus categories.
Comparing Phosphorus Removal Efficiencies And Mechanisms Via Two Cost Effective Specialty Adsorbents In A Cascade Upflow Filtration System
DOWNLOAD
Author : Sydney Kilgus-Vesely
language : en
Publisher:
Release Date : 2023
Comparing Phosphorus Removal Efficiencies And Mechanisms Via Two Cost Effective Specialty Adsorbents In A Cascade Upflow Filtration System written by Sydney Kilgus-Vesely and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
Finding solutions to treat water that contains phosphorus is an important effort due to the harmful impacts it presents to both human health and the environment. Phosphorus is considered a limiting factor in water oftentimes and therefore controls the growth of algal bloom in a water body. The increase of algal populations due to wastewater effluent, stormwater runoff, and agricultural discharge in Florida waters has a direct link to the event of harmful algal blooms such as red tide in coastal regions, eutrophication of waterbodies, and fish kills. Finding low cost, energy efficient, and low maintenance green sorption media (GSM) solutions to treat this nutrient laden water is the main focus of this study. Phosphorus removal efficiencies were studied in the lab using two new recipes of GSM with a unique passive energy cascade upflow hydraulic pattern. The study goal involves comparing the two new GSM in terms of their removal rates of phosphate, removal mechanisms, and their differential effects via a lab-scale cascade upflow filtration system. The two new GSM include Zero-valent Iron and Perlite Green Environmental Media (ZIPGEM) composed of 85% sand, 5% clay, 5% zero valent iron, 5% perlite by volume, and Biochar zero-valent Iron and Perlite Green Environmental Media (BIPGEM) containing 80% sand, 5% biochar, 5% clay, 5% perlite, 5% zero valent iron by volume. To explore the differential effects, the addition of biochar in BIPGEM is of special interest in this study and expected to perform better than its counterpart ZIPGEM. However, results indicated that ZIPGEM, when treated as a system, experienced an average percent removal of 97.9% to 78.9% from the initial 60 minute to 300 minute range, whereas BIPGEM experienced an average 86.9% to 67.1% removal during this same time interval. At the time of shutdown for the BIPGEM runs (5,480 minutes), BIPGEM as a system possessed an average 52.8%, and ZIPGEM a 69.1% removal. Upon shutdown for ZIPGEM at the 11,180 minutes mark, ZIPGEM was still at an average 69.1% removal. Further comparison of the material structures and compositions of two GSM involve chemical composition analysis of both raw and spent media samples using X-ray diffraction (XRD), X-ray fluorescence spectrometry (XRF), and scanning electron microscope (SEM) in the Advanced Materials Processing and Analysis Center (AMPAC) at the University of Central Florida (UCF). Two experimental runs with slightly different flow rates were conducted for each type of sorption medium to explore the process reliability of such a cascade upflow filtration system. Statistical analysis via the Kolmogorov-Smirnov Test was calculated to compare goodness of fit between the two sets of performance curves associated with each sorption media and experimental run in the lab. The results of this study show that the inclusion of biochar did not support the hypothesis that BIPGEM would perform better than ZIPGEM in phosphorus removal and the two experimental runs are statistically similar. This may be due to the quantity of biochar not being enough to provide significant adsorption of phosphorus or the possibility of synergistic effects between the other ingredients within the recipe altering the physical or chemical adsorption properties expected from the medium. It is recommended that further studies in a downflow filtration system (i.e., a column study) take place to continue the understanding of the impact associated with changing hydraulic pattern and higher content of biochar in the recipe based on this study.
