Download or read book Wetlands for the Treatment of Agricultural Drainage Water written by Guangzhi Sun and published by MDPI. This book was released on 2018-10-11 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Wetlands for the Treatment of Agricultural Drainage Water" that was published in Water

Download or read book Wetlands for the Treatment of Agricultural Drainage Water written by Guangzhi Sun and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural drainage, such as runoffs from farmlands and wineries, are contaminated waters. Their management is monitored by environmental protection authorities who set targets of volume or pollutant reductions. Due to large quantities and seasonal variations, the targets are often not met, and effective management remains a problem in many parts of the world.false,Natural wetlands are known as the 'kidneys' of the earth with unique water purification functions that have long been recognized. Imitating the functions of natural wetlands, constructed wetlands are engineered systems purposely built to treat contaminated waters. They may therefore be called the 'artificial kidneys' of the earth. Rural areas often only have low-value lands available for constructed wetlands. Where large quantities of drainage are produced, farmlands are often adjacent to degraded natural wetlands that have reduced ecosystem functions. Controlled discharge and treatment in the wetlands can potentially be part of an integrated solution to multiple environmental problems.false,This book includes some recent studies on the fate of pollutants removed from agricultural drainage in wetlands, modelling of wetland performance, innovative systems, and the use of non-hazardous agricultural waste in constructed wetlands for wastewater treatment. These studies enhance our understanding of wetland systems, and will help develop wetland technology towards solving the problems associated with agricultural drainage.

Download or read book Management of Agricultural Drainage Water Quality written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1997 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Constructed Wetlands for Wastewater Treatment written by Donald A. Hammer and published by CRC Press. This book was released on 2020-11-25 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Management of Agricultural Drainage Water Quality written by Madramootoo and published by Daya Books. This book was released on 2005 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are several concerns about the sustainability of irrigation and drainage projects, many of which are related to the quality and disposal of drainage water. Inadequate drainage and improper drainage water disposal have led to land degradation due to water logging and salinity. There have been instances where saline or high nutrient drainage water has damaged aquatic ecosystems. Drainage continues to be a vital and necessary component of agricultural production systems. In order to enhance the net benefits of drainage systems, more attention will need to be given to the water quality impacts of drainage water disposal. This document identifies potential problems and management options in the development, production, treatment and disposal of agricultural drainage water. Contents Chapter 1: Introduction by Chandra A Madramootoo; Need for artificial drainage, Agricultural, environmental and socio-economic benefits of drainage, Types of drainage systems, Surface drainage, Subsurface drainage, Secondary drainage treatments, Environmental impact assessment, Water quality issues, Drainage water management and disposal options, On-farm source control, Re-use of drainage water, Disposal and management of drainage water in closed basins, Water table management, Planning and designing drainage systems to protect and enhance water quality; Chapter 2: Drainage Water Quality by Dennis Westcot; Water quality charactersitics, Pesticides, Toxic trace elements, Nutrients, Sediment, Bacteria, Temperature, Salinity and major ions, Sulphurous compounds, Protection of beneficial uses, Domestic and drinking water, Industrial supply, Agricultural supply, Aquatic life, Recreation; Chapter 3: Water Table Management by Daniel Zimmer and Chandra A Madramootoo; General features, Water table control structures, Water quality benefits, Drainage hydrology and water quality, Nutrients, Pesticides, Operational aspects, Farm or catchment scale, Topography and soils, Monitoring requirements; Chapter 4: Drainage Water Re-Use; Re-use for crop irrigation by Michael C Shannon; Effects of salinity on crop growth and yield, Agricultural management practices, Managing cycling and blending strategies, Re-use for saline agriculture and forestry by Vashek Cervinka, Concept of agriculture-forestry systems and solar evaporators, System design and planning, Re-use in a natural wetland by Dick A Daniel, Re-use of surface drainage water, Re-use of subsurface drainage water; Chapter 5: Drainage Water Treatment by Lawrence Owns; Physical, chemical and biological treatment processes, Selection of treatment process, Methods of treatment, Physical/chemical treatment, Biological treatment, A treatment example, Treatment in constructed wetlands by Walter J Ochs, Flow-through wetland functions, Planning and design of flow through wetlands, Hydraulic and geohydraulic characteristics, Soils and geologic characteristics, Vegetative characteristics, Implementation, monitoring and management; Chapter 6: Drainage Water Disposal; Disposal to natural hydrological systems by William R Johnston, Land application and retirement by William R Johnston, Evaporation ponds by Kenneth K Tanji, Constructed evaporation ponds, Pond hydrology, Pond water chemistry and mineralogy, Pond biology and toxicity, Biological, chemical and physical treatment options, Deep will injection by Robert T Burns, Concept and technology, Environmental considerations, Geological considerations, Case study; Chapter 7: Health Issues Related to Drainage Water Management by Martin S Fritsch; The interactions between drainage, water management and health, Water related diseases and their vectors, Incidence of diseases - cases and mortality, Vector-borne diseases: transmission by insects, Water-based diseases: transmission by aquatic and semi-aquatic snails, Water-borne excreta related infections, Health risks and chemical pollution, Integrated control of transmission of vector-borne diseases, Components of integrated control approaches, Environmental management for vector control, Environmental management measures in drainage water management, Drainage water treatment, re-use and disposal, Environmental management measures applied to drainage structures, Development of control strategies; Chapter 8: Institutional Arrangements by Ashok Subramanian; Issues and problems, Objectives and interest groups, Need for regulation, conservation and communication, Role of public and private agencies and water users, Institutional mechanisms, Laws and regulations, Corporate organizations, Participatory planning, Incentives for water quality enhancement, Monitoring, Institutional capacity.

Download or read book Agricultural Drainage Ditches Mitigation Wetlands for the 21st Century written by Matthew T. Moore and Robert Kroger and published by . This book was released on 2010-05-01 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: About the Book : - As populations across the globe burgeon and pressures on agricultural production intensify, natural resources of adjacent and downstream aquatic ecosystems are often degraded. Classically, non-point source contamination of nutrients, sediments and pesticides result in aquatic ecosystem degradation, downstream river eutrophication, and in some cases, eventual coastal ecosystem imbalance with hypoxic zones occurring in coastal waters. Managers, action agencies and conservationists want to reduce impacts of non-point source contamination on receiving systems. Best management practices such as no-till, implementation of buffer strips, riparian corridors, and conservation fertilizer applications are all management applications that reduce the concentration and load of contaminants to aquatic systems. Drainage is a common management practice on most agricultural production, as farmers require water to move away from maturing crops avoiding crop senescence and loss of yield by flooding and soil saturation. Thus, agricultural drainage ditches are ubiquitous features of the production landscape. Traditionally agricultural drainage ditches were viewed simply as drainage tools, a conduit to rapidly move water away from the production landscape and into adjacent aquatic systems. However, there is a paradigm shift occurring whereby scientists and managers are viewing these drainage ditches as integral tools in the management of non-point source contamination. Along with these studies, multiple other studies are beginning to show the ecological importance of drainage ditches and their contribution to both the agricultural and broader ecological landscape. This book highlights cutting-edge research being carried out on agricultural drainage ditches. Chapter 1 (Werner et al.) is aimed at characterizing the benthic macroinvertebrate communities in secondary and tertiary agricultural drainage ditches in Yolo County, California. These ditches were approximately 1-2 m wide, about 0.1-0.6m in depth, and were ephemeral in nature. Despite the ephemeral nature of these secondary and tertiary ditches, 14 different benthic macroinvertebrate taxa were found, of which baetid mayflies were the only EPT (ephemeroptera, plecoptera, and trichoptera) taxa found. Interestingly, species richness was significantly correlated with water depth, and oligochaetes were most abundant where substrate quality was poor (percentage organic, mud, sand, gravel, cobble and hardpan clay) and dissolved oxygen was low. By examining the differences between perennial and ephemeral ditches, it was shown that perennial sites had larger, more diverse invertebrate communities; however, it was not discredited that these differences could have been the result of proximity to colonization and adversely affected by potential sources of nonpoint source contamination. This study highlighted the need for more in depth work into quantifying the role macroinvertebrates play in drainage ditch dynamics and how alterations to ditch management might change the population structure and diversity. Chapter 2 (Feldman et al.) complements the benthic macroinvertebrate research of Chapter 1, highlighting macroinvertebrate assemblages of agricultural drainage ditches of northeast Arkansas, in the floodplain of the Mississippi River. Feldman et al. noted that the characteristic benthic macroinvertebrate fauna will be reflective of the hydraulic residence time of the respective ditch surveyed. In this study, Feldman et al. assessed ten drainages (ranging in size from primary intercept ditches to riverine, quaternary ditches) and characterized over 68 different macroinvertebrate taxa. Mean annual taxa metric scores ranged from 16 in primary systems to 24 in riverine/quaternary ditches. Interestingly seasonal sampling collections highlighted seasonal differences in the macroinvertebrate population assemblage. By combining measures of macroinvertebrate diversity and physical environmental quality parameters and evaluating how they change temporally, benthic macroinvertebrate can be utilized as indicators for changes in water quality within water bodies. Often in primary drainage ditches low EPT richness was not a function of degraded water quality, but rather a lack of habitat diversity that prevented diverse EPT establishment. The third chapter (Smiley et al.) addressed understanding the knowledge of population and community ecology of fishes within agricultural drainage ditches. Often agricultural drainage ditch systems are straightened channels lacking riparian vegetation in an agricultural landscape. Furthermore, these agricultural drainage ditches undergo periods of intensive management that includes dredging and herbicide application to decrease channel hydrologic capacity and prevent vegetation (both woody and herbaceous) establishment. This literature survey identified documents and publications that documented fish responses to physical habitat modifications and/or exposures to agricultural contaminants. The study identified over 800 possible publications with selection criteria including: agricultural land use in watershed, headwater streams, and streams that were channelized. From the literature review, Smiley et al. found that fishes appeared to be integral components of agricultural drainage ditches and were often correlated with instream habitat variables of channelization and the effects of nonpoint contaminants of herbicides and nutrients. Future research is looking at integrating the drainage ditches ability to mitigate nonpoint source loads as well as provide habitat for fish communities. In Chapter 4, Pierce and Pezeshki examined another biological component of agricultural drainage ditches, namely vegetation. This research begins to disseminate the limitations of vegetation in establishment, productivity and function in agricultural drainage ditches. Primary systems such as ditches are dynamic environments in terms of hydrological fluctuations, soil water stress conditions, and the influence of anthropogenic disturbances associated with land use patterns (i.e. fertilizer, herbicide loads and concentrations). Thus, to survive ditch conditions, plants (whether annual or perennial) must possess life history characteristics that allow them to become established and withstand periods of intense hydrological fluctuations and high loads / concentrations of chemicals. This chapter offers some insights to the current knowledge on how plants mitigate agricultural pollutants and provides an outline for the abiotic factors that will limit the establishment and productivity of ditch vegetation. The synthesis outlines the effects of ditch management techniques such as 2-stage ditches, the use of low-grade drainage control structures and how these influence the biogeochemical environment in drainage ditches. Furthermore the authors provide examples of studies that have shown the ability of vegetation exposed to various environmental scenarios commensurate with drainage ditches (e.g. Leersia oryzoides, Juncus effusus and Bacopa monnieri). The fifth chapter (Kleinman et al.) investigated the role agricultural drainage ditches play in nutrient transfers from manured fields in the Delmarva Peninsula, on the Atlantic Coastal Plain. This research in the Chesapeake Bay watershed is driven primarily by the poor water quality in the Bay (hypoxic zones and eutrophic conditions resulting in algal blooms), which occurs as a result of nutrient and sediment loadings from agriculture upstream. According to the public drainage associations, drainage ditches are designed as conduits to remove excess water from the production landscape, with the removal of vegetation a common management practices to improve drainage. Research findings have shown that ditches, no matter the size, can contribute significantly to nutrient export. Small drainage ditches with high concentrations and large water volumes can contribute significantly to downstream aquatic contaminant loads. Furthermore, even ditches that do not have a point source of nutrient loading directly, given high background concentrations, will yield significant contributions to the nutrient loadings in years of high flow. This research provides insight into how management of drainage ditches needs to be incorporated in broader watershed nutrient management programs. In Chapter 6, Saunders and Brown examined how drainage ditches, in particular sediments, play a role in phosphorus sorption from municipal wastewater in Peru, South America. Phosphorus is a contaminant across the globe, associated with agriculture but also closely associated with urban and rural communities (e.g. detergents). Phosphorus in aquatic systems results in algal blooms, eutrophication and a potential concern for tourism due to the aesthetics associated with water quality and indirect effects on fisheries. This study based in the Oxapampa community in Peru examined three municipal drainage ditches and evaluated the role sediments played in phosphorus sorption. Total phosphorus of sediments was very high (2171 19, 277 mg P /kg) with the majority of P associated with Fe / Al oxyhydroxides. Sorption capacities and physicochemical characteristics varied between seasons (i.e. clay and organic matter contents). The chapter highlights how drainage ditches can be both sinks and sources of soluble reactive phosphorus, and that sorption capacity is influenced by the timing of phosphorus exports (i.e. seasonality) and the magnitude of export. Next, Penn et al. (Chapter 7) evaluated various treatment structures in agricultural drainage ditch management for water quality improvement. Drainage ditches are conduits for contaminant transfer from the agricultural production landscape to downstream aquatic ecosystems. Therefore, improving the ecological benefit of drainage ditches to water quality improvement can occur by implementing management strategies of controlled drainage. Penn et al propose implementing a flow control structure which controls water depth within the drainage ditch. In addition, filter structures, filled with various sorbents can be used to enhance nutrient or contaminant mitigation. The study addresses the importance of various sorbent materials and discusses in detail the advantages and disadvantages of each. Furthermore, the authors address design considerations of the filter structures, ditch filter designs (pond and dam structures), and what these structures mean in a broader system management within the watershed. The eighth chapter (Stringfellow et al.) examined the water quality changes occurring in agricultural drains associated with varying degree of riparian buffers in the San Joaquin Valley of California. The study evaluated nitrate-nitrogen, soluble reactive phosphate and total suspended solids concentrations and loads that were associated with five different study sites, all of which had varying degrees of riparian function. Riparian function was evaluated with the California Rapid Assessment for Wetlands, a scientifically defensible tool to evaluate the overall health of wetland ecosystems. The stated hypothesis was that drainage ditches with high degrees of riparian function would have a beneficial effect on water quality in drainages in comparison to drainages with less vegetation and less riparian habitat. Results showed that areas with improved riparian habitat and higher degrees of riparian function will buffer drainages from external anthropogenic sources of contamination, but the in-stream water quality improvement of drainage ditches is not enhanced by simple improvements to ditch bank vegetation. It was recommended modifications to the in-stream drainage management will likely improve in-stream removal of nutrients and sediments. Chapter 9 (Jayakaran et al.) discussed construction, maintenance, and geomorphic evolution of low-gradient agricultural drainage ditches. Important issues such as bank erosion, contaminant transport, and general ditch design were not initially part of early settlers plans when digging ditches to drain water-holding landscapes for agriculture. Fluvial features consistent with natural streams play a significant role in the management and design of these ditches. Significant work on drainage ditches in the Midwest feeding tile or sub-surface drainage systems has been achieved. This chapter is an excellent resource for those interested in specific design criteria for modifying channels. The tenth chapter (Farris et al.) discussed the toxicity of atrazine and lambda-cyhalothrin amendments in agricultural drainage ditches, and evaluated the ability of the drainage ditches to potentially mitigate downstream effects of these pesticides. Atrazine and lambda-cyhalothrin are two agro-chemicals commonly utilized in the agricultural production landscape and are often carried with surface runoff and spray-drift into adjacent aquatic ecosystems. The study evaluated a drainage ditch system located in the Mississippi Delta Management Systems Evaluation Area (MDMSEA) and its ability to reduce the toxicity of the above mentioned pesticides. The 28 d trial time span failed to identify the exact duration at which acute toxicity exposures to sediment exposed to these two agro-chemicals would have no sublethal effects. Toxicity of aquatic invertebrates occurred within the drainage ditch ecosystem, however, the structure and function of agricultural drainage ditches for mitigation is an important ecological component that warrants significant further investigation. The study alludes to further research within agricultural drainage ditches from an ecotoxicological context. The eleventh and final chapter (Bennett et al.) improves the understanding on pesticide mitigation in drainage ditches highlighted in Chapter 10, by looking more specifically at the effectiveness of vegetated agricultural drainage ditches in mitigating aquatic insecticide loadings. Often adjacent aquatic ecosystems (i.e. surface drainage ditches) to agricultural production are influenced by insecticide loadings resulting from runoff and spray-drift. This chapter focuses on the use of agricultural drainage ditches as best management practices in reducing insecticide loadings in two very different scenarios: agricultural ditches in Mississippi under simulated runoff conditions and in ditches in the Western Cape of South Africa, under natural runoff and spray-drift conditions. The results from the study showed that in both ditch systems, concentrations of bifenthrin and lambda-cyhalothrin were reduced rapidly with distance and time. For the Mississippi ditches, it was calculated that ditch lengths of 120 m and 280 m were required to reduce bifenthrin and lambda-cyhalothrin to 1% and 0.1%, respectively, of the original loadings. In the Western Cape scenario similar relationships occurred where pesticide concentrations (azinphos-methyl) declined with distance. It was noted that the aquatic macrophyte component of the drainage ditches played an important role in the retention and providing available surface area for pesticide attachment in agricultural ditch systems. Authors validated the effectiveness of mitigation with a series of aquatic toxicity bioassays and benthic surveys. As one can see from the variety of research topics addressed in the chapters of this book, agricultural drainage ditch research is rapidly shifting the use of the agricultural drainage ditches away from traditional system conduits to important management tools in the agricultural landscape. As alluded to at the end of most chapters, these research topics have provided vital answers to the importance of drainage ditches, but they have also developed a suite of questions that demand further research. The advancement of drainage ditch science is of benefit to scientific community, management and relevant stakeholders. In proving their worth for ecological services of contaminant mitigation and biodiversity maintenance, drainage ditches can be influential tools in developing broad sweeping management objectives for watershed scale water and contaminant management.

Download or read book Agricultural Drainage Water Management in Arid and Semi arid Areas written by Kenneth K. Tanji and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2002 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains guidelines to sustain irrigated agriculture and protect water resources from the negative impacts of agricultural drainage water disposal. Using case studies from Central Asia, Egypt, India, Pakistan and the US, this study highlights four broad groups of drainage water management options and provides information to enable assessment of their impact and contribution towards development goals and to facilitate the preparation of drainage water management plans and designs. The options are: water conservation, drainage water re-use, drainage water disposal and drainage water treatment. The full texts of the case studies can be found on the attached CD-ROM.

Download or read book Wetlands written by William J. Mitsch and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for the previous editions of Wetlands: "Wetlands, the field of study, would not be what it is without Wetlands, the book." ——Bill Streever, Wetlands, 2001 "The Third Edition of this highly successful book manages to set new standards in presentation and content to confirm its place as the first point of reference for those working or studying wetlands." ——Chris Bradley, University of Birmingham, UK, Regulated Rivers: Research and Management "This book is the wetlands bible...the most wide-ranging [book] on the subject." ——Carl Folke, Royal Swedish Academy of Sciences, Land Use Policy "The single best combination text and reference book on wetland ecology." ——Joseph S. Larson, University of Massachusetts, Journal of Environmental Quality "First on my list of references to recommend to someone new to wetland policy management or science." ——Jay A. Leitch, North Dakota State University, Water Resources Bulletin For more than two decades, William Mitsch and James Gosselink's Wetlands has been the premier reference on wetlands for ecologists, land use planners, and water resource managers worldwide—a comprehensive compendium of the state of knowledge in wetland science, management, and restoration. Now Mitsch and Gosselink bring their classic book up to date with substantial new information and a streamlined text supplemented with a support web site. This new Fourth Edition maintains the authoritative quality of its predecessors while offering such revisions as: Refocused coverage on the three main parts of the book: 1. An introduction to the extent, definitions, and general features of wetlands of the world; 2. Wetland science; and 3. Wetland management. New chapter on climate change and wetlands that introduces the student to the roles that wetlands have in climate change and impact that climate change has on wetlands. Increased international coverage, including wetlands of Mexico and Central America, the Congolian Swamp and Sine Saloum Delta of Africa, the Western Siberian Lowlands, the Mesopotamian Marshland restoration in Iraq, and the wetland parks of Asia such as Xixi National Wetland Park in eastern China and Gandau Nature Park in Taipei, Taiwan. This expanded coverage is illustrated with over 50 wetland photographs from around the world. Several hundred new refer?ences for further reading, up-to-date data, and the latest research findings. Over 35 new info boxes and sidebars provide essential background information to concepts being presented and case studies of wetland restoration and treatment in practice.

Download or read book Nutrient Management in Agricultural Watersheds written by E.J. Dunne and published by BRILL. This book was released on 2023-08-28 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient enrichment of water resources by inputs of nitrogen and phosphorus, which can lead to eutrophication is still a water quality problem in agriculturally dominated watersheds around the world. Internationally, wetlands both constructed and natural are increasingly being used to help reduce both point and non-point source nutrient and contaminant loss from agricultural practices. This publication contains papers presented at the international symposium on "Nutrient Management in Agricultural Watersheds: A Wetlands Solution," which was held during May, 2004 in Wexford, Ireland. The symposium was the result of an international collaboration between the Teagasc Research Centre, Johnstown Castle, Ireland, National Parks and Wildlife, Department of Environment, Heritage and Local Government, Ireland and the Soil and Water Science Department at the University of Florida, Gainesville, USA. These proceedings cover aspects of water quality within agricultural watersheds; management practices to mitigate contaminant and nutrient loss from agriculture; wetland biogeochemistry; wetland functions and values within agricultural dominated landscapes; case studies of wetlands used to retain nutrient and contaminant loss from agriculture; and finally some management and policy issues concerning wetlands are presented. This book provides a good interdisciplinary synthesis of international experiences both in Europe and the USA on the use of wetlands within agricultural watersheds.

Download or read book Constructed Wetlands for Water Quality Improvement written by Gerald A. Moshiri and published by CRC Press. This book was released on 2020-09-23 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Treatment Wetlands written by Gabriela Dotro and published by IWA Publishing. This book was released on 2017-11-15 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Wetlands and Agriculture written by and published by . This book was released on 1998 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Constructed Wetlands for Water Quality Improvement written by Gerald A. Moshiri and published by CRC Press. This book was released on 2020-09-23 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Wetland Systems to Control Urban Runoff written by Miklas Scholz and published by Elsevier. This book was released on 2015-10-22 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands for Water Pollution Control, Second Edition, covers the fundamental science and engineering principles relevant to the drainage and treatment of both storm and wastewater. Standard and novel design recommendations for predominantly constructed wetlands and related sustainable drainage systems are also provided to account for the interests of professional engineers and environmental scientists. This revised edition deals with the design, operation, maintenance, and water quality monitoring of traditional and novel wetland systems, but also provides information on the analysis of asset performance and modeling of treatment processes, along with performances of existing infrastructures in predominantly developed, but also developing countries, and the sustainability and economic issues involved. This new edition contains 10 new chapters, along with multidisciplinary, experimental, and modeling-orientated case study topics that include natural wetlands, constructed treatment wetlands for pollution control, sustainable drainage systems, and specific applications, such as wetlands treating hydrocarbon and ammonia, as well as ecological sanitation systems recycling treated. Contains a broad overview of water and environmental engineering aspects relevant for the drainage and treatment of storm water and wastewater, respectively Includes standard and novel design, operation, monitoring and maintenance recommendations for predominantly constructed wetlands and related sustainable drainage systems Provides detailed solutions to pressing water quality challenges associated with constructed treatment wetlands, integrated constructed wetlands, sustainable flood retention basins, farm constructed wetlands and storm water ponds, and other sustainable biological filtration and treatment technologies linked to public health engineering

Download or read book Wastewater Treatment Plant Dynamics and Management in Constructed and Natural Wetlands written by Jan Vymazal and published by Springer Science & Business Media. This book was released on 2008-04-22 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present, constructed wetlands for wastewater treatment are a widely used technology for treatment of various types of wastewaters. The International Water Association (then International Association on Water Pollution Research and Control) recognized wetlands as useful tools for wastewater treatment and est- lished the series of biennial conferences on the use of wetland systems for water pollution control in 1988. In about 1993, we decided to organize a workshop on nutrient cycling in natural and constructed wetlands with the major idea to bring together researchers working on constructed and also natural wetlands. It was not our intention to compete with IWA conferences, but the workshop should rather complement the series on treatment wetlands by IWA. We believed that the exchange of information obtained from natural and constructed wetlands would be beneficial for all participants. And the time showed that we were correct. The first workshop took place in 1995 at T?ebo? in South Bohemia and most of the papers dealt with constructed wetlands. Over the years we extended the topics on natural wetlands (such as role of wetlands in the landscape or wetland restoration and creation) and during the 6th workshop held at T?ebo? from May 30 to June 3, 2006, nearly half of 38 papers presented during the workshop dealt with natural wetlands. This workshop was attended by 39 participants from 19 countries from Europe, Asia, North and South Americas and Australia. The volume contains 29 peer-reviewed papers out of 38 papers which were presented during the workshop.

Download or read book Hypoxia in the Northern Gulf of Mexico written by Virginia H. Dale and published by Springer Science & Business Media. This book was released on 2010-04-12 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1985, scientists have been documenting a hypoxic zone in the Gulf of Mexico each year. The hypoxic zone, an area of low dissolved oxygen that cannot s- port marine life, generally manifests itself in the spring. Since marine species either die or ee the hypoxic zone, the spread of hypoxia reduces the available habitat for marine species, which are important for the ecosystem as well as commercial and recreational shing in the Gulf. Since 2001, the hypoxic zone has averaged 2 1 16,500 km during its peak summer months , an area slightly larger than the state 2 2 of Connecticut, and ranged from a low of 8,500 km to a high of 22,000 km . To address the hypoxia problem, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force (or Task Force) was formed to bring together represen- tives from federal agencies, states, and tribes to consider options for responding to hypoxia. The Task Force asked the White House Of ce of Science and Technology Policy to conduct a scienti c assessment of the causes and consequences of Gulf hypoxia through its Committee on Environment and Natural Resources (CENR).

Download or read book Infiltration Measurements for Soil Hydraulic Characterization written by Rafael Angulo-Jaramillo and published by Springer. This book was released on 2016-06-29 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarises the main results of many contributions from researchers worldwide who have used the water infiltration process to characterize soil in the field. Determining soil hydrodynamic properties is essential to interpret and simulate the hydrological processes of economic and environmental interest. This book can be used as a guide to soil hydraulic characterization and in addition it gives a complete description of the treated techniques, including an outline of the most significant research results, with the main points that still needing development and improvement.