Constructed Subsurface Wetlands
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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.
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.
Constructed Wetlands For Water Quality Improvement
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Author : Gerald A. Moshiri
language : en
Publisher: CRC Press
Release Date : 1993-10-25
Constructed Wetlands For Water Quality Improvement written by Gerald A. Moshiri and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-10-25 with Technology & Engineering categories.
Constructed Wetlands for Water Quality Improvement is a virtual encyclopedia of state-of-the-art information on the use of constructed wetlands for improving water quality. Well-organized and easy-to-use, this book features contributions from prominent scientists and provides important case studies. It is ideal for anyone involved in the application of constructed wetlands in treating municipal and industrial wastewater, mine drainage, and non-point source pollution. Constructed Wetlands for Water Quality Improvement is a "must" for industrial and municipal water treatment professionals, consulting engineers, federal and state regulators, wetland scientists and professionals, ecologists, environmental health professionals, planners, and industrial environmental managers.
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
Subsurface Flow Constructed Wetlands For Wastewater Treatment
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Author : Sherwood C. Reed
language : en
Publisher:
Release Date : 1993
Subsurface Flow Constructed Wetlands For Wastewater Treatment written by Sherwood C. Reed and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Constructed wetlands categories.
Guidance For Design And Construction Of A Subsurface Flow Constructed Wetland
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Author : Sherwood C. Reed
language : en
Publisher: DIANE Publishing
Release Date : 1997
Guidance For Design And Construction Of A Subsurface Flow Constructed Wetland written by Sherwood C. Reed and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Technology & Engineering categories.
Provides guidance in the selection, design, construction, and operation of subsurface flow constructed wetlands. The information is necessary, especially for small communities, where there has been considerable effort to construct and maintain treatment facilities cost-efficiently, capitalizing on the minimal energy requirements of this technology. Contents: factors capable of influencing performance expectations; design and construction considerations (calculating design require., recommended design and construction considerations); and operational considerations.
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.
Review Of Constructed Subsurface Flow Vs Surface Flow Wetlands
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Author :
language : en
Publisher:
Release Date : 2004
Review Of Constructed Subsurface Flow Vs Surface Flow Wetlands written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
The purpose of this document is to use existing documentation to review the effectiveness of subsurface flow and surface flow constructed wetlands in treating wastewater and to demonstrate the viability of treating effluent from Savannah River Site outfalls H-02 and H-04 with a subsurface flow constructed wetland to lower copper, lead and zinc concentrations to within National Pollutant Discharge Elimination System (NPDES) Permit limits. Constructed treatment wetlands are engineered systems that have been designed and constructed to use the natural functions of wetlands for wastewater treatment. Constructed wetlands have significantly lower total lifetime costs and often lower capital costs than conventional treatment systems. The two main types of constructed wetlands are surface flow and subsurface flow. In surface flow constructed wetlands, water flows above ground. Subsurface flow constructed wetlands are designed to keep the water level below the top of the rock or gravel media, thus minimizing human and ecological exposure. Subsurface flow wetlands demonstrate higher rates of contaminant removal per unit of land than surface flow (free water surface) wetlands, therefore subsurface flow wetlands can be smaller while achieving the same level of contaminant removal. Wetlands remove metals using a variety of processes including filtration of solids, sorption onto organic matter, oxidation and hydrolysis, formation of carbonates, formation of insoluble sulfides, binding to iron and manganese oxides, reduction to immobile forms by bacterial activity, and uptake by plants and bacteria. Metal removal rates in both subsurface flow and surface flow wetlands can be high, but can vary greatly depending upon the influent concentrations and the mass loading rate. Removal rates of greater than 90 per cent for copper, lead and zinc have been demonstrated in operating surface flow and subsurface flow wetlands. The constituents that exceed NPDES limits at outfalls H-02 a nd H-04 are similar in nature and within typical concentrations found in municipal wastewaters, mine drainage and landfill leachate, all of which have been successfully treated in constructed wetlands. Contaminant-specific removal rates required to bring outfall H-02 and H-04 effluents to within NPDES limits have been achieved by various types of wetlands, including SSF wetlands. Therefore a constructed wetland would be a viable approach for treating effluent from the two outfalls. SSF wetlands generally can be smaller than SF wetlands for a particular wastewater flow, but can cost more per acre. Thus the potential range of costs for constructing a SSF system may overlap with the cost range predicted for a SF system. However, capital costs and operations and maintenance costs for both SSF and SF wetland treatment systems are lower than for conventional wastewater treatment systems. Preliminary scoping level cost estimates for a SSF and a SF system for outfalls H-02 and H-04 are presented in this document using a range of values found in the literature.
Constructed Wetlands For Wastewater Treatment
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Author : Donald A. Hammer
language : en
Publisher: CRC Press
Release Date : 1989-10-31
Constructed Wetlands For Wastewater Treatment written by Donald A. Hammer and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-10-31 with Technology & Engineering categories.
Both practical and theoretical, this book provides the basic principles of soil chemistry, hydrology, wetland ecology, microbiology, vegetation and wildlife as a sound introduction to this innovative technology to treat toxic wastewaters and sludges. The use of wetlands for acid mine drainage, and metals removal in municipal, urban runoff, and industrial systems is discussed. Case histories are also presented, demonstrating specific types of constructed wetlands and applications to municipal wastewater, home sites, coal and non-coal mining, coal-fired electric power plants, chemical and pulp industry, agriculture, landfill leachate, and urban stormwater. Construction and management guidelines are clearly explained, providing information on applicable policies and regulations, siting and construction, and operations and monitoring of constructed wetlands treatment systems. Recent theoretical and empirical results from operating systems and research facilities, including such new applications as nutrient removal from eutrophic lakes and urban stormwater treatment within highway rights-of-way, are included. This book is an ideal resource for wastewater treatment plants, consulting engineers, federal and state regulators, industrial environmental managers, municipalities, environmental health professionals, and ecologists.
Natural And Constructed Wetlands
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Author : Jan Vymazal
language : en
Publisher: Springer
Release Date : 2018-06-12
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 2018-06-12 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.