Constructed wetlands with horizontal sub-surface flow (HF CWs) have been used for wastewater treatment for more than four decades. HF CWs are used around the world for many types of wastewater, including municipal sewage, agricultural and industrial wastewaters, runoff waters, wastewaters containing endocrine-disrupting chemicals, and landfill leachate.

This book fills a gap in the literature by providing an extensive, worldwide overview of this treatment technology. Special attention is paid to assessing the use of this treatment technology in individual countries and treatment performance of various HF CWs with respect to major pollutants in different types of wastewater.

The book provides a broad base of knowledge, including:

• processes occurring in wetland soils and overlying water
• various types of constructed wetlands for wastewater treatment
• detailed information about design parameters, functioning, operation and maintenance, and costs of HF CWs
• evaluations of treatment efficiency of HF CWs under diverse conditions
• information on the global use of HF CWs for various types of wastewater

The inclusion of case studies from over 50 countries and more than 250 colour photos that illustrate the science makes this an invaluable text.

This book will be useful not only to wetland scientists, teachers, and engineers, but also to landscape planners, ecologists, wastewater-treatment designers and governmental decision-makers.

This is the first interdisciplinary book on the mobilization of nutrients and pollutants in the water phase due to hydrodynamic processes. Coverage includes the formation of aggregates in turbulent water; flocks and biofilms from organic reactions; and the formation of new surfaces for re-adsorption of dissolved pollutants. The book gathers papers resulting from an International Symposium on Sediment Dynamics and Pollutant Mobility in River Basins in Hamburg, Germany, March, 2006.

This book takes stock of micro irrigation systems (MIS), the technological intervention in India's agricultural and water management sectors, over the past couple of decades. Based on empirical research from the major agriculturally dynamic states, viz., Gujarat, Rajasthan, Maharashtra, Tamil Nadu, Andhra Pradesh and Karnataka, the book provides a nuanced understanding and objective assessment of the implementation and adoption of MIS across these states. It addresses several of the questions related to adoption and impacts of MIS in India. On the adoption side, the key question that the book addresses is which segment of the farming community adopts MIS across states? The impacts analysed include those on physical, agronomic and economic aspects. At the macro level, the question being asked is about the future potential of MIS in terms of saving water from agriculture and making more water available for environment. The book also addresses the question of the positive/negative externalities and real social benefits and costs from the use of MIS, a major justification for heavy capital subsidies for its purchase by farmers. It also brings out certain critical concerns pertaining to MIS adoption, which need to be addressed through more empirical research based on longitudinal panel/ cross sectional data. The book would be of great use to researchers (agricultural water management, irrigation economics), students of water resource engineering, irrigation engineering and water resources management, as well as to policy makers and agricultural water management experts - national and international.

Water scarcity affects hydrologic resources, systems connectivity, biodiversity, water quality, and river ecosystem functioning. It has direct impacts on economic sectors that use and depend on water, such as agriculture, tourism, industry, energy and transport. The Mediterranean Basin is one of the regions in the world most vulnerable to climate changes, as well as one of the most impacted by human water demand. This volume provides an in-depth view of the water quality and quantity implications of water scarcity. It highlights its possible causes and describes the effects in regions under Mediterranean climate. The topics covered include climate effects, water resources (use, storage and new sources), water quality (chemical and microbiological), and the effects on ecosystems suffering from water scarcity. This book is addressed to scientists and students, but also to managers involved in the necessary decision making process to face future periods of drought.

This book reflects the use of cyanobacteria for the bioremediation of wastewater through different mechanisms and pathways of transformation and transfer of hazardous substances from one medium to another. The application of microorganisms for bioremediation is determined by their ubiquity, small size, high rate of reproduction and large surface-to-volume cell ratio. Mechanisms of interaction of cyanobacteria with inorganic pollutants include biosorption, bioaccumulation with an opportunity to obtain metal nanoparticles both on the cell surface and inside the cells as well as chelation and inclusion of metals in the composition of certain organic structures. Data presented in the book provides specialists in the field with useful information for bioremediation technologies as well as for obtaining valuable preparations using cyanobacteria.

Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.

Volume 2: Risk Analysis. This 3-volume reference presents the latest findings in impact assessment of recycled hazardous waste materials on surface and ground waters. Topics covered include chemodynamics, toxicology, modeling and information systems. The book serves as a practical guide for the monitoring, design, management, or conduct of environmental impact assessment. Each volume contains the table of contents of all volumes.

Volume 3: Engineering Modeling and Sustainability. This 3-volume reference presents the latest findings in impact assessment of recycled hazardous waste materials on surface and ground waters. Topics covered include chemodynamics, toxicology, modeling and information systems. The book serves as a practical guide for the monitoring, design, management, or conduct of environmental impact assessment. Each volume contains the table of contents of all volumes.

Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.

Interweaving the human aspects of river control with analysis of hydro-physical data, including historical data over the last few centuries, this monograph is a comprehensive evaluation of the Damodar s lower reaches. While the Damodar River isn t an exceptional tropical river, nor does it feature classic examples of river control structures, it is unusual and worthy of study due to the fact that nowhere else in the tropical world have riverine sandbars been used as a resource base as well as for permanent settlements. Based on their knowledge of river stages, the inhabitants have fine-tuned their land use to flood events, applying a concept of flood zoning to the riverbed. Every available space has been utilized rationally and judiciously.

This rare human-environmental study analyzes the remarkable way in which immigrants unfamiliar with the riverine environment have adapted to the altered hydrologic regime of the river. In doing so they have demonstrated a sophisticated understanding of the flood regime and the vagaries of an unpromising environment in their land use, cropping and settlement patterns. Spurred on by restricted social and economic mobility and sometimes political constraints, these self-settled refugees have learned to adapt to their environment and live with the floods.

Bhattacharyya s text is particularly timely, as anthropogenic processes of this kind have not been adequately studied by geographers."

There is increasing political and environmental pressure on industry to clean up the water which it uses in many processes, and to re-use this water where possible. This cleaning is done using specially-developed industrial membranes and this book covers the types and design of membranes, how they work and in which industries they are used. Special attention is paid to the textile, food/ beverage, pharmaceutical, oil and pulp and paper industries where such membranes are in regular use.

Comprising specially selected papers this book presents trans-disciplinary research on issues related to the nature of water, and its use and exploitation by society. The valuable research contained in this book demonstrates the need to bridge the gap between physical, biological, environmental and health sciences. Water is essential for sustaining life on our planet, nevertheless its unequal distribution is a source of permanent conflict. It is predicted that population growth and irregular rainfall, due to climate change, may lead to more restricted access to water in certain regions of the world. This problem is made even more severe by human actions that can cause degradation to nature and the environment. The availability of clean and inexpensive water can no longer be taken for granted as the need for water continues to increase due a growing global population. Heavy water consumers such as agriculture and industry often contribute to its contamination. Water distribution networks in urban areas and soiled water collection systems, present serious problems as well as the need to maintain ageing infrastructures. Possible technologically solutions, such as desalination or pumping systems are energy demanding but, as costs rise, the techniques currently developed may need to be re-assessed.

This book is concerned with the causes and consequences of river and coastal floods and the ways in which people can respond to the flood hazard. Individual chapters address issues such as floods as natural hazards; impacts and interpretations of flood hazard; causes, spatial characteristics and form of river floods and coastal floods; flood estimation; flood defence; flood forecasting and warning; other responses including land use planning and insurance; and a concluding discussion of problems, policies and prospects. Floods has been written by two experienced and successful authors whose complementary skills are combined to give a broad, comprehensive and up-to-date treatment of the subject which can be used not only as a text book or learning manual but also as an authoritative reference source. This has been achieved by organising and structuring the material to demonstrate the continuity and linkages between the causes and impacts of flooding and the many possible responses to the flood hazard. At the same time the book ensures that discussion of each of the main themes and topics is, as far as is practicable, self-contained. The book is timely in several aspects. It addresses the topicality and universality of floods which are an increasing hazard at a time of global environmental change (climate, land use, population distribution etc.). It also offers the layman and practitioner alike a synthesis and clarification of many individual research efforts near the close of the International Decade for Natural Disaster Reduction.

This book focuses in the current situation of water resources, water supply and sanitation, and population movement in Latin America. It identifies new phenomena and challenges that will put more pressure on water resources in the near future and that will create important socioeconomic constraints in population and their governments. This volume offers an evaluation of water resources availability and consumption, water supply and sanitation shortages, management models and population growth and territory occupation trends in eighteen Latin American countries. Also a set of recommendations, policy proposals and projects is outlined.

If you have responsibility for forecasting future water demand in your city, AWWA's newly revised Forecasting Urban Water Demand provides all the tools you need to accurately forecast drinking-water requirements for your city in the short-, mid-, and long-term. Forecasting Urban Water Demand examines the full range of influences on urban water demand-population, weather, climate, water prices/rates, and short- and long-term conservation programs. It describes how to use all water demand-forecasting techniques used by US water utilities:1. Annual per capita water demand forecasts 2. Annual water demand forecasts by major customer class 3. Peak day forecasts 4. Monthly system water demand forecasts 5. Daily water demand forecasts 6. Revenue forecasts linked with water demand forecastsThe book provides guidance for choosing the right forecasting methods, depending upon the uses for which you will use the forecast, such as sizing system capacity and raw water supply, rate setting, revenue forecasting, or planning distribution system improvements. Additionally, the book tells you what data you need to do forecasting, and shows you how to use such useful techniques as curve fitting, statistical regression analysis, and other powerful methodologies. You will be able to do a water demand forecast as sophisticated or as simple as you need, with the information in this book. An included CD contains a wealth of data that will help you to understand standard forecasting concepts and practice standard forecasting procedures.The CD contains * 20 years' of daily weather data (a typical data chart available from the National Climactic Data Center, useful for many demand-analysis applications) * 66 years' of daily water use data (a remarkable series of data, used for several important exercises in water demand analysis) * Demand curve chart (experiment with the relationship between price and demand) * 15 years' of data to analyze per capita water demand (understand such concepts as regression analysis) * 10 years' of monthly data on water use proportions and factors (predict seasonal variation of water use for a customer class or utility) * Sector water use data and forecast (example of historic data on residential and commercial/industrial water use and 25-year forecasts based on growth rates) * Types of water demand forecasts and applications (know which forecast application to use for short-, mid-, or long-term forecasts) NEW IN THE SECOND EDITION 1. Findings from the Water Demand Survey, a polling of more than 600 US water utility managers on their forecast practices, conservation programs, and current and anticipated trends per capita water use in their systems. 2. New chapters on long-term water conservation and short-term emergency conservation. 3. Expanded coverage of impacts of weather and climate change on water demand modeling. 4. Expanded information on price elacticity with example calculations.

This book documents the history of irrigated agriculture and drainage in the San Joaquin Valley, and describes the hydrology and biogeochemical processes of salts and selenium, remediation technologies for salts and trace elements and policy and management options. The contents are comprised of fourteen chapter-length independent treatises, each depicting with fresh perspective a distinctive salinity drainage topic. The opening chapters detail the evolution of irrigated agriculture, and depict the geochemical and hydrological processes that define the San Joaquin Valley, including the physics, chemistry, and biology attributes that impact water management policies and strategies. Next, the contributors address the biogeochemistry of selenium, the role of plants in absorbing it from soils, and the processes involved in retaining and concentrating dissolved salts in drainage water. Further chapters describe on-farm and plot-level irrigation provisions to reduce agricultural drainage outputs and examine their effects on plant performance. This volume offers realistic policy analysis of water management options for irrigated agriculture in the Valley and assesses their respective outcomes, if implemented. Also included is an international perspective on the sustainability of irrigated agriculture there.

"Wastewater Microbiology" focuses on microbial contaminants found in wastewater, methods of detection for these contaminants, and methods of cleansing water of microbial contamination. This classic reference has now been updated to focus more exclusively on issues particular to wastewater, with new information on fecal contamination and new molecular methods. The book features new methods to determine cell viability/activity in environmental samples; a new section on bacterial spores as indicators; new information covering disinfection byproducts, UV disinfection, and photoreactivation; and much more. A PowerPoint of figures from the book is available at ftp: //ftp.wiley.com/public/sci_tech_med/wastewater_microbiology.

Implementing the Circular Economy for Sustainable Development presents the concept of the circular economy with the goal of understanding its present status and how to better implement it, particularly through environmental policies. It first tackles the definition of a circular economy in the context of sustainability and the differences in defining the concept across disciplines, including its fallibilities and practical examples. It then goes on to discuss the implementation of a circular economy, including the increasing variety of technological, mechanical, and chemical procedures to contend with and the need for stakeholder support in addition to improved business models. The second half of the book, therefore, presents tools, approaches, and practical examples of how to shape environmental policy to successfully implement a circular economy. It analyzes deficiencies of current regulations and lays the groundwork for the design of integrated environmental policies for a circular economy. Authored by an expert in environmental economics with decades of experience, Implementing the Circular Economy for Sustainable Development is a timely, practical guide for sustainability researchers and policymakers alike to move more efficiently toward a circular economy and sustainable development.

Water, Power and Citizenship investigates the interrelationship between water politics and institutions and the development of citizenship rights from a historical-sociological perspective. The evolution of water's manifold social character and values, as a source of power, as a public good, as a commodity, or as a universal right is examined in the light of ever changing and mutually binding social and ecological processes. The Basin of Mexico's rich water history becomes the vantage point to cast light on one of the most crucial challenges facing the international community - that of eliminating water inequality and injustice.

Watersheds, supplying crucial ecosystem services to humans, seem to be a logical territorial unit to integrate societal benefits and environmental needs in order to evaluate the sustainability of natural resource use patterns. Based on this belief the book is an attempt to initiate a comprehensive environmental security assessment in the basin of the Azov Sea, shared by Russia and Ukraine. Though the region provides a variety of essential services and plays a strategic role in national and international development plans, it has been excluded from most regional environmental discussions. At the same time there is an alarming degradation rate of basin freshwater ecosystems that has occurred due to overutilization of certain prioritized services (e.g. transportation). The collapse of neglected services (e.g. fishery and freshwater supply) poses serious threats to the national economies as well as the local population, and to mitigate these threats priority in water management should be given to securing sustainability of the regional freshwater ecosystems. In addition to the review of the current status of Azov ecosystem services, the authors analyze likely future availability and challenges. The relevant experience derived from basin management of the Black Sea and other similar basins is also discussed.

This book presents the applications of ion-exchange materials in the area of environmental analysis and treatment. It includes chapters on applications of organic, inorganic and composite ion exchange materials and hexacyanoferrates in various fields such as chemical and biochemical separations, water purification, removal of harmful impurities, dyes and cationic and anionic complexes. This title is a highly valuable source of knowledge on ion-exchange materials and their applications suitable for postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology. Additionally, this book will provide an in-depth knowledge of ion-exchange column and operations suitable for engineers and industrialists.