Phosphorus Removal By Various Filter Materials In Subsurface Flow Constructed Wetlands
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Phosphorus Removal By Various Filter Materials In Subsurface Flow Constructed Wetlands
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Author : Christina Vohla
language : en
Publisher:
Release Date : 2008
Phosphorus Removal By Various Filter Materials In Subsurface Flow Constructed Wetlands written by Christina Vohla and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
A Study Of Nitrogen Organic Material And Phosphorus Removal From Domestic Wastewater Across Parallel Cold Climate Hybrid Subsurface Flow Constructed Wetlands Under Controlled Conditions
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Author : Jedediah Rode
language : en
Publisher:
Release Date : 2013
A Study Of Nitrogen Organic Material And Phosphorus Removal From Domestic Wastewater Across Parallel Cold Climate Hybrid Subsurface Flow Constructed Wetlands Under Controlled Conditions written by Jedediah Rode and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
A one year cold-climate investigation was completed on parallel hybrid subsurface flow constructed wetlands under multiple flow regimes, both with and without a recycle stream, to evaluate the removal of typical wastewater parameters of concern: nitrogen, organic material, suspended solids and phosphorus from domestic wastewater. The hybrid wetlands, composed of horizontal and vertical subsurface flow constructed wetland components, included an integrated blast-furnace slag filter component for phosphorus removal. The parameter removal results were used to compare previously successful treatment models and to determine wastewater removal rate constants that may aid in the design of future hybrid constructed wetlands. The horizontal components effectively removed organic material during the winter and summer seasons, however, seasonal effects were observed. The blast-furnace slag filter did not achieve the phosphorus removal goals. The vertical components efficiently reduced organic material content during winter and summer, and nitrification rates were different, though successful, between the two seasons.
Treatment Wetlands
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Author : Gabriela Dotro
language : en
Publisher: IWA Publishing
Release Date : 2017-11-15
Treatment Wetlands written by Gabriela Dotro and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-15 with Science categories.
Contents: Overview of Treatment Wetlands; Fundamentals of Treatment Wetlands; Horizontal Flow Wetlands; Vertical Flow Wetlands; French Vertical Flow Wetlands; Intensified and Modified Wetlands; Free Water Surface Wetlands; Other Applications; Additional Aspects.
Design And Construction Of Phosphorus Removal Structures For Improving Water Quality
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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.
Wastewater Treatment In Constructed Wetlands With Horizontal Sub Surface Flow
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Author : Jan Vymazal
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-07-15
Wastewater Treatment In Constructed Wetlands With Horizontal Sub Surface Flow written by Jan Vymazal 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 2008-07-15 with Technology & Engineering categories.
Wetlands have been used for uncontrolled wastewater disposal for centuries. However, the change in attitude towards wetlands during the 1950s and 1960s caused the minimization of the use of natural wetlands for wastewater treatment (at least in developed countries). Constructed wetlands have been used for wastewater treatment for about forty years. Constructed wetland treatment systems are engineered systems that have been designed and constructed to utilize the natural processes for removal of pollutants. They are designed to take advantage of many of the same processes that occur in natural wetlands, but do so within a more controlled environment. The aim of this book is to summarize the knowledge on horizontal s- surface flow constructed wetlands (HF CWs) and objectively evaluate their treatment efficiency under various conditions. The information on this type of wastewater treatment technology is scattered in many publications but a comprehensive summary based on world-wide experience has been lacking. The book provides an extensive overview of this treatment technology around the world, including examples from more than 50 countries and examples of various types of wastewater treated in HF CWs.
Vertical Flow Constructed Wetlands
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Author : Alexandros Stefanakis
language : en
Publisher: Newnes
Release Date : 2014-06-26
Vertical Flow Constructed Wetlands written by Alexandros Stefanakis and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-26 with Technology & Engineering categories.
Vertical flow constructed wetlands for wastewater and sludge treatment represent a relatively new and still growing technology. Vertical Flow Constructed Wetlands is the first book to present the state-of-the-art knowledge regarding vertical flow constructed wetlands theory and applications. In this book, you will learn about vertical flow systems with information about application and performance. Vertical Flow Constructed Wetlands also includes information on how different countries are applying the technology, with design guidelines to illustrate best practices worldwide. A focus on water conservation through reuse of treated water showcases the benefit of vertical flow construction, which has greatly increased the attractiveness of the technology in recent years. All state-of-the-art knowledge regarding vertical flow constructed wetlands gathered in one book A review of various constructed wetland approaches, including information about applications and performance, helps clarify what is currently known about constructed wetland principles and design Discussion of how to manage the treated wastewater leaving the vertical flow for increasing biodiversity, providing food and habitat for birds, and producing harvestable biomass or crops Includes case studies of constructed wetlands in developing countries
Constructed Subsurface Wetlands
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Author : Abdel Razik Ahmed Zidan
language : en
Publisher: CRC Press
Release Date : 2018-01-03
Constructed Subsurface Wetlands written by Abdel Razik Ahmed Zidan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-03 with Science categories.
With a sharp focus on environmental pollution and its impact on life and nature, scientists and engineers have studied the water treatment effect of natural wetlands for many years, resulting in the development of constructed wetlands (CWs) for treating wastewater. This informative new book provides current information and guidance on the construction, performance, operation, and maintenance of subsurface flow constructed wetlands of domestic and municipal wastewater. The focus of the volume is to evaluate the performance of horizontal subsurface flow constructed wetlands in treating domestic wastewater to establish the limit that can be safely discharged to agricultural drains. Two-step procedures were used for the preparation of this book. Using modeling and statistical analyses of treated water samples showed a significant difference between different media for the treatment of most pollutants. The authors went on to design artificial neural network models (ANNs) using Matlab software to simulate some of the experimental data and to anticipate the parameters of output concentration. The wetland systems have the ability to deal with various pollutants with different concentrations and to decrease the treated water to the standard limits. This volume presents the main role of emergent plants for treatment performance in the constructed wetlands and will be a very important resource for engineers in this field as well as for both undergraduate and graduate students.
Investigations Into Phosphorus Removal By Constructed Wetlands
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Author : Roger McLaughlin
language : en
Publisher:
Release Date : 1997
Investigations Into Phosphorus Removal By Constructed Wetlands written by Roger McLaughlin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
A study has been conducted focusing on how the phosphorus renrx)val efficiency of a constructed wetland (CW) can be optimized through the selective enrichment of the substratum. Activated alumina and powdered iron were examined as possible enrichment compounds. Using packed glass column trials it was found that alumina was not suitable for the renx)val of ortho-phosphate from solution, while mixtures of powdered iron and quartz sand proved to be very efficient. The evaluation of iron/sand mixtures in CWs planted with cattails was performed in three stages; first using an indoor lab scale wetland, then an outdoor lab scale wetland, and finally in a small scale pilot project. For the lab scale tests, three basic configurations were evaluated: using the iron/sand as a pre-filter, in the root bed. and as a post filter. Primary lagoon effluent was applied to the test cells to simulate actual CW conditions, and the total phosphorus and iron concentrations of the influent and effluent were nfK)nitored. The pilot scale trials were limited to using only a post filter design, due to in-progress research at the pilot site. The lab scale tests achieved average renrK>val efficiencies greater than 91% for all indoor configurations, and greater than 97% for all outdoor configurations. The pilot scale tests had an average renK)val efficiency of 60%. This relatively low efficiency in the pilot scale can be attributed to the post filters being only one tenth the size of the lab scale test in terms of hydraulic loading (6 cm/day vs. 60 cm/day).
Artificial Or Constructed Wetlands
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Author : María del Carmen Durán-Domínguez-de-Bazúa
language : en
Publisher: CRC Press
Release Date : 2018-06-15
Artificial Or Constructed Wetlands written by María del Carmen Durán-Domínguez-de-Bazúa and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-15 with Nature categories.
Artificial or constructed wetlands are an emerging technology particularly for tropical areas with water scarcity. For big cities, the sustainable management of water resources taking into account proper use is always challenging. The book presents case studies illustrating the above. As plants and microorganisms are a fundamental part of the correct functioning of these systems, their contribution to the degradation of the organic matter and to the removal and transformation of the pollutant compounds present in the wastewaters is also a highlight of this book.
Natural And Constructed Wetlands
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Author : Jan Vymazal
language : en
Publisher: Springer
Release Date : 2016-08-26
Natural And Constructed Wetlands written by Jan Vymazal and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-26 with Science categories.
The book extends the knowledge on wetland ecosystem services based on the new research. The information combines the achievements gained in carbon sequestration, nutrient accumulation, macrophyte decomposition, wastewater treatment, global warming mitigation in constructed as well as natural wetlands across the globe. The book presents up-to-date results of ongoing research and the content of the book could be used by wetland scientists, researchers, engineers, designers, regulators, decision-makers, universities teachers, landscape engineers and landscape planners as well as by water authorities, water regulatory offices or wastewater treatment research institutions.
