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Books > Earth & environment > Earth sciences > The hydrosphere

Routledge Handbook of Urban Water Governance (Hardcover): Thomas Bolognesi, Francisco Silva Pinto, Megan Farrelly Routledge Handbook of Urban Water Governance (Hardcover)
Thomas Bolognesi, Francisco Silva Pinto, Megan Farrelly
R6,437 Discovery Miles 64 370 Ships in 9 - 15 working days

This handbook provides a comprehensive, state-of-the-art overview of urban water governance. Of the many growing challenges presented by rapid urbanization, water governance is a critical one and while urban water governance is now regarded as a critical field of research, the literature is fragmented. For the first time, this handbook brings together urban water governance research, containing interdisciplinary contributions from established and emerging scholars, practitioners, and policymakers. It addresses the key questions of how urban water governance works, how is it shaped, and what the impacts are. The handbook's structure offers a progressive entry into the complexity of urban water governance. Starting with technical dimensions, the handbook addresses supply and demand, wastewater, and sanitation. It then considers regulation and economic factors, examining water utilities and services. Political processes, and the actors involved, are addressed and the handbook finishes with a part focusing on governance and sustainability, where chapters address critically important topics such as access to water, water safety, and water security. This handbook is essential reading for students, scholars, and professionals interested in urban water governance, urban studies, and water resource management and sustainability more broadly.

Managing Britain's Marine and Coastal Environment - Towards a Sustainable Future (Paperback): Jonathan Potts, Hance D.... Managing Britain's Marine and Coastal Environment - Towards a Sustainable Future (Paperback)
Jonathan Potts, Hance D. Smith
R1,394 Discovery Miles 13 940 Ships in 12 - 17 working days

Britain's maritime tradition is well documented. The management of its marine and coastal environment is therefore of tantamount importance, and offers lessons for other nations across the world. The beginning of the new millennium marks a major, long-term turning point in the historical development of Britain's maritime interest discernible by continued diversification and intensification in the uses of the sea; unprecedented and often adverse environmental impacts engendered by these uses; and the beginning of a major effort to establish a comprehensive management system which can deal with both multiple uses and environmental impacts.
This collection, featuring an impressive list of contributors, covers themes including maritime history, environmental issues, public policy, tourism, technology and resources as well as open sea development and management. It is a useful addition for those interested in geography, the environment, maritime studies and also engineering.

Integrated Water Resources Management in Practice - Better Water Management for Development (Hardcover): Roberto Lenton, Mike... Integrated Water Resources Management in Practice - Better Water Management for Development (Hardcover)
Roberto Lenton, Mike Muller
R4,595 Discovery Miles 45 950 Ships in 12 - 17 working days

Better water management will be crucial if we are to meet many of the key challenges of this century - feeding the world 's growing population and reducing poverty, meeting water and sanitation needs, protecting vital ecosystems, all while adapting to climate change. The approach known as Integrated Water Resources Management (IWRM) is widely recognized as the best way forward, but is poorly understood, even within the water sector. Since a core IWRM principle is that good water management must involve the water users, the understanding and involvement of other sectors is critical for success. There is thus an urgent need for practical guidance, for both water and development professionals, based on real world examples, rather than theoretical constructs. That is what this book provides. Using case studies, the book illustrates how better water management, guided by the IWRM approach, has helped to meet a wide range of sustainable development goals. It does this by considering practical examples, looking at how IWRM has contributed, at different scales, from very local, village-level experiences to reforms at national level and beyond to cases involving trans-boundary river basins. Using these on-the-ground experiences, from both developed and developing countries in five continents, the book provides candid and practical lessons for policy-makers, donors, and water and development practitioners worldwide, looking at how IWRM principles were applied, what worked, and, equally important, what didn t work, and why. Published with the Global Water Partnership

Collected Works of Richard J. Chorley (Hardcover): Richard J. Chorley Collected Works of Richard J. Chorley (Hardcover)
Richard J. Chorley
R9,817 Discovery Miles 98 170 Ships in 12 - 17 working days

Richard John Chorley was known as a leading figure in quantitative geography in the late 20th Century and played an instrumental role in bringing the use of systems theory to geography. This set of 7 reissued works either edited by or written by Chorley offers a great wealth of scholarship on geography and geomorphology.

Photo-Activated Sludge: A Novel Algal-Bacterial Biotreatment for Nitrogen Removal from Wastewater (Paperback): Angelica Rada... Photo-Activated Sludge: A Novel Algal-Bacterial Biotreatment for Nitrogen Removal from Wastewater (Paperback)
Angelica Rada Ariza
R2,803 Discovery Miles 28 030 Ships in 12 - 17 working days

Nitrogen rich wastewaters (10-400 mg N L-1) are usually produced by municipal, industrial and agricultural wastes, such as effluents from anaerobic treatments. These represent a risk to the environment due to the high nutrient concentrations (nitrogen and phosphorous), which can cause eutrophication of water bodies, deteriorating the quality of the ecosystems. As a solution, the potential nitrogen removal capacity of a novel bio-treatment system, namely the Photo-Activated Sludge (PAS), which is composed of microalgae and bacteria consortia, is presented in this thesis. This novel bio-treatment is based on the symbiosis between microalgae, nitrifiers and heterotrophic bacteria (microalgal-bacterial consortia). Experimental work using photobioreactors for the cultivation of microalgae and bacteria under sequencing batch conditions showed that microalgal-bacterial consortia can remove ammonium 50% faster than solely microalgal consortia. The increase in ammonium removal rates was due to the action of nitrifying bacteria, supplied with oxygen produced by algae. Nitrification was the main ammonium removal mechanism within the microalgal-bacterial biomass, followed by algal uptake and nutrient requirements for bacterial growth. Carbon oxidation and denitrification were the main removal mechanisms for organic carbon. Hence, the role of algae within the microalgal-bacterial system is to provide oxygen to support the aerobic processes. The microalgal-bacterial system offers the possibility of reducing the hydraulic retention time, which can decrease the large area requirements often demanded by algal systems.

Marine Biofouling - Colonization Processes and Defenses (Paperback): Alexander I. Railkin Marine Biofouling - Colonization Processes and Defenses (Paperback)
Alexander I. Railkin
R1,961 Discovery Miles 19 610 Ships in 12 - 17 working days

Recent instances of bioinvasion, such as the emergence of the zebra mussel in the American Great Lakes, generated a demand among marine biologists and ecologists for groundbreaking new references that detail how organisms colonize hard substrates, and how to prevent damaging biomass concentrations. Marine Biofouling: Colonization Processes and Defenses is the English language version of a comprehensive work by eminent Russian scientist Alexander I. Railkin, who details the causes of vast biomass concentrations on submerged hard substrates. He also delivers a quantitative description of colonization processes and provides detailed models for preventing biofouling. This volume expounds on many topics rarely discussed in the frame of one book: types of hard substrate communities; comparison of hard and soft substrate communities; harm caused by micro- and macrofoulers; larval taxes and drift; mechanisms of settlement and attachment of microorganisms, invertebrates, ascidians and macroalgae; the impact of currents; protection from epibionts; industrial biofouling protection; successions on hard substrates; and the recovery of disturbed communities or the self-assembly of communities. The text includes much Russian-language research translated for the first time. Through a thorough examination of substrate organisms and an exploration of preventive methods, this monograph prepares those concerned with marine biology to help protect the self-purifying organisms that keep marine ecosystems healthy and productive.

Floods in a Changing Climate - Inundation Modelling (Paperback): Giuliano Di Baldassarre Floods in a Changing Climate - Inundation Modelling (Paperback)
Giuliano Di Baldassarre
R1,083 Discovery Miles 10 830 Ships in 9 - 15 working days

Flood inundation models enable us to make hazard predictions for floodplains, mitigating increasing flood fatalities and losses. This book provides an understanding of hydraulic modelling and floodplain dynamics, with a key focus on state-of-the-art remote sensing data, and methods to estimate and communicate uncertainty. Academic researchers in the fields of hydrology, climate change, environmental science and natural hazards, and professionals and policy-makers working in flood risk mitigation, hydraulic engineering and remote sensing will find this an invaluable resource. This volume is the third in a collection of four books on flood disaster management theory and practice within the context of anthropogenic climate change. The others are: Floods in a Changing Climate: Extreme Precipitation by Ramesh Teegavarapu, Floods in a Changing Climate: Hydrological Modeling by P. P. Mujumdar and D. Nagesh Kumar and Floods in a Changing Climate: Risk Management by Slodoban Simonovic.

Tropical Resources - Ecology and Development (Hardcover): William B. Morgan, James R. Pfafflin, Kenneth Ruddle, Jose I. Furtado Tropical Resources - Ecology and Development (Hardcover)
William B. Morgan, James R. Pfafflin, Kenneth Ruddle, Jose I. Furtado
R3,536 R2,489 Discovery Miles 24 890 Save R1,047 (30%) Ships in 12 - 17 working days

Originally published in 1990 Tropical Resources presents in-depth coverage of the extremely diverse tropical environments, the resources to be found within the region and their production, and ecological management. The book discusses economic geography and ways of utilizing available resources, including those of tropical forests, wildlife, tidal wetlands and the sea. The book also include chapters on the development and land use of protected areas, the ecological aspects of pasture resources; and the impacts of economic development and population damage. In addition, studies are offered on tropical soils, including their distribution properties and management and the ecological processes at work in tropical forests. For geographers, economists and policymakers, the book provides a wealth of information on tropical resources and their potential development.

Multi-Stakeholder Platforms for Integrated Water Management (Hardcover, New Ed): Jeroen Warner Multi-Stakeholder Platforms for Integrated Water Management (Hardcover, New Ed)
Jeroen Warner
R4,292 Discovery Miles 42 920 Ships in 12 - 17 working days

As they provide a negotiating space for a diversity of interests, Multi-Stakeholder Platforms (MSPs) are an increasingly popular mode of involving civil society in resource management decisions. This book focuses on water management to take a positive, if critical, look at this phenomenon. Illustrated by a wide geographical range of case studies from both developed and developing worlds, it recognizes that MSPs will neither automatically break down divides nor bring actors to the table on an equal footing, and argues that MSPs may in some cases do more harm than good. The volume then examines how MSPs can make a difference and how they might successfully co-opt the public, private and civil-society sectors. The book highlights the particular difficulties of MSPs when dealing with integrated water management programmes, explaining how MSPs are most successful at a less complex and more local level. It finally questions whether MSPs are - or can be - sustainable, and puts forward suggestions for improving their durability.

The Arctic - Environment, People, Policy (Hardcover): Jack D Ives, Roger G. Barry The Arctic - Environment, People, Policy (Hardcover)
Jack D Ives, Roger G. Barry
R6,377 Discovery Miles 63 770 Ships in 12 - 17 working days

Originally published in 2000, The Arctic provides a comprehensive overview of the region's rapidly changing physical and human dimensions, and demonstrates the importance of communication between natural scientists, social scientists, and local stakeholders in response to the tremendous challenges and opportunities facing the Arctic. It is an essential resource for all Arctic researchers, particularly those developing multidisciplinary projects. It provides an overview of key areas of Arctic research by renowned specialists in the field, and each chapter forms a detailed, varied and accessible account of current knowledge. Each author introduces the subject to a specialist readership, while retaining intellectual integrity and relevance for specialists. Overall, the richness of the material presented in this volume reflects the ecological and cultural diversity of this vast and environmentally critical part of the globe.

Groundwater in Fractured Rocks - IAH Selected Paper Series, volume 9 (Paperback): Jiri Krasny, John M. Sharp Groundwater in Fractured Rocks - IAH Selected Paper Series, volume 9 (Paperback)
Jiri Krasny, John M. Sharp
R2,013 Discovery Miles 20 130 Ships in 12 - 17 working days

The hydrogeologic environment of fractured rocks represents vital natural systems, examples of which occur on every continent. This book discusses key issues, methodologies and techniques in the hydrogeology of fractured rocks, summarizing recent progress and anticipating the outcome of future investigations. Forty-four revised and updated papers were selected from extended abstracts presented at the International Conference on Groundwater in Fractured Rocks, held in Prague in 2003 and these provide a valuable benchmark reference for studies in fractured rock hydrogeology worldwide. Topics include sustainable groundwater development, groundwater protection and management, new and improved approaches to the investigating hydrogeology of fractured systems, understanding of hydrogeologic properties both on local and regional scales, and both quantitative and qualitative aspects of groundwater flow and solute/contaminant transport.

Groundwater and Ecosystems (Paperback): Luis Ribeiro, Tibor Y. Stigter, Antonio Chambel, M. Teresa Condesso De Melo, Jose Paulo... Groundwater and Ecosystems (Paperback)
Luis Ribeiro, Tibor Y. Stigter, Antonio Chambel, M. Teresa Condesso De Melo, Jose Paulo Monteiro, …
R1,968 Discovery Miles 19 680 Ships in 12 - 17 working days

Groundwater resources are facing increasing pressure from consuming and contaminating activities. There is a growing awareness that the quantitative and qualitative preservation of groundwater resources is a global need, not only to safeguard their future use for public supply and irrigation, but also to protect those ecosystems that depend partially or entirely on groundwater to maintain their species composition and natural ecological processes. Known as groundwater dependent ecosystems (GDEs), they have been a fast-growing field of research during the last two decades. This book is intended to provide a diverse overview of important studies on groundwater and ecosystems, including a toolbox for assessing the ecological water requirements for GDEs, and relevant case studies on groundwater/surface-water interactions, as well as the role of nutrients in groundwater for GDEs and ecosystem dependence (vegetation and cave fauna) on groundwater. Case studies are from Australia (nine studies) and Europe (12 studies from nine countries) as well as Argentina, Canada and South Africa. This book is of interest to everybody dealing with groundwater and its relationship with ecosystems. It is highly relevant for researchers, managers and decision-makers in the field of water and environment. It provides up-to-date information on crucial factors and parameters that need to be considered when studying groundwater-ecosystem relationships in different environments worldwide.

Advanced Onsite Wastewater Systems Technologies (Paperback): Anish R. Jantrania, Mark A. Gross Advanced Onsite Wastewater Systems Technologies (Paperback)
Anish R. Jantrania, Mark A. Gross
R1,957 Discovery Miles 19 570 Ships in 12 - 17 working days

Drawing on the authors' combined experience of more than 30 years, Advanced Onsite Wastewater Systems Technologies explores use of these technologies on a wide-scale basis to solve the problems associated with conventional septic tank and drain field systems. The authors discuss a regulatory and management infrastructure for ensuring long-term, reliable applications of onsite systems for wastewater management. The book and its supporting web-site (www.advancedonsitesystems.com) are an information catalog for advanced onsite wastewater technologies. This combination offers tools that will help onsite wastewater professionals communicate effectively with each other and their clients, thus minimizing the confusion and misunderstandings often related to the use of advanced onsite systems. The authors provide an overview of advanced onsite systems technologies and compare them to conventional onsite systems and centralized wastewater systems. They present key concepts for decentralized wastewater solutions and information on advanced onsite wastewater treatment and effluent dispersal technologies currently available. The book delineates a management, regulatory, and planning framework for adopting the use of advanced onsite systems technologies as alternatives to conventional septic systems and centralized collection and treatment plants. It concludes with an exploration of the future of advanced onsite systems technologies and their uses. A toolbox for service professionals, regulators, and community planners, the book highlights objective methods to assess the performance of technologies and examples of real-world applications. The authors detail a solution-driven and performance-based regulatory framework for the use of advanced onsite systems as a true alternative to centralized collection and treatment plants and offer guidance on how to plan for future growth with such systems. They answer the age-old question of "what to do when the land doesn't pe

Remote Sensing of Global Croplands for Food Security (Paperback): Prasad Thenkabail, John G. Lyon, Hugh Turral, Chandrashekhar... Remote Sensing of Global Croplands for Food Security (Paperback)
Prasad Thenkabail, John G. Lyon, Hugh Turral, Chandrashekhar Biradar
R2,236 Discovery Miles 22 360 Ships in 12 - 17 working days

Increases in populations have created an increasing demand for food crops while increases in demand for biofuels have created an increase in demand for fuel crops. What has not increased is the amount of croplands and their productivity. These and many other factors such as decreasing water resources in a changing climate have created a crisis like situation in global food security. Decision makers in these situations need accurate information based on science. Remote Sensing of Global Croplands for Food Security provides a comprehensive knowledge base in use of satellite sensor-based maps and statistics that can be used to develop strategies for croplands (irrigated and rainfed) and their water use for food security. Over 50 Multi-disciplinary Global Experts Give Insight and Provide Practical Approaches Emphasizing practical mapping technologies based on advanced remote sensing data and methods, this book provides approaches for estimating irrigated and rainfed cropland areas and their water use on a national, continental, or global basis. Written by 50+ leading experts working at the forefront of this critical area, it offers case studies from a variety of continents highlighting the subtle requirements of each. In a very practical way it demonstrates the experience, utility, and models for determining water resources used and resulting yields of irrigated and rainfed croplands. The authors discuss: (a) innovative methods used for mapping croplands, (b) approaches adopted to collect cropland data in different countries by traditional and non-traditional means, (c) accuracies, uncertainties, and errors involved in producing cropland products, (d) surface energy balance models used to assess crop water use, and (e) extensive results and outcomes pertaining to global croplands and their water use. Develop Strategies for an Enhanced Green Revolution and an Accelerated Blue Revolution Linking croplands to water use and food security, the book provides a global perspective on this sensitive issue. It gives insight into the extent of cropland usage, their spatial distribution, their cropping intensities, and their water use patterns. The editors collect the experience, methods, models, and results that show the way forward and help in decision-making on water resources and food security. All of this is required for developing strategies for an enhanced green revolution and for an accelerated blue revolution.

Electronics - Fundamentals for the Water and Wastewater Maintenance Operator (Paperback): Frank R Spellman, Joanne Drinan Electronics - Fundamentals for the Water and Wastewater Maintenance Operator (Paperback)
Frank R Spellman, Joanne Drinan
R1,948 Discovery Miles 19 480 Ships in 12 - 17 working days

This is the only book series devoted to explaining the full range of specialized areas required of water and wastewater plant operators. Each volume is designed to give operators the basic knowledge of a subject needed for certification, licensure, and improved job performance. Checkpoints, self-tests and a final examination with questions based on actual operator certification exams provide a practical review. All books are clearly illustrated with key ideas and highlighted points throughout. Electronics explains the fundamental structure and operation of the electronic hardware that underlies many automated processes in a treatment plant. It provides an introduction to electrical circuits, diodes, transistors, and transformers, which are explained in the context of device control.

Rural-Urban Water Struggles - Urbanizing Hydrosocial Territories and Evolving Connections, Discourses and Identities... Rural-Urban Water Struggles - Urbanizing Hydrosocial Territories and Evolving Connections, Discourses and Identities (Hardcover)
Lena Hommes, Rutgerd Boelens, Leila M. Harris, Gert Jan Veldwisch
R4,139 Discovery Miles 41 390 Ships in 12 - 17 working days

Rural-Urban Water Struggles compiles diverse analyses of rural-urban water connections, discourses, identities and struggles evolving in the context of urbanization around the world. Departing from an understanding of urbanization as a process of constant making and remaking of multi-scalar territorial interactions that extend beyond traditional city boundaries and that deeply reconfigure rural-urban hydrosocial territories and interlinkages, the chapters demonstrate the need to reconsider and trouble the rural-urban dichotomy. The contributors scrutinize how existing approaches for securing urban water supply - ranging from water transfers to payments for ecosystem services - all rely on a myriad of techniques: they are produced by, and embedded in, specific institutional and legal arrangements, actor alliances, discourses, interests and technologies entwining local, regional and global scales. The different chapters show the need to better understand on-the-ground realities, taking account of inequalities in water access and control, as well as representation and cultural-political recognition among rural and urban subjects. Rural-Urban Water Struggles will be of great use to scholars of water governance and justice, environmental justice and political ecology. This book was originally published as a special issue of Water International.

The White Nile (Paperback): Alan Moorehead The White Nile (Paperback)
Alan Moorehead
R519 R433 Discovery Miles 4 330 Save R86 (17%) Ships in 10 - 15 working days

Relive all the thrills and adventure of Alan Moorehead's classic bestseller The White Nile -- the daring exploration of the Nile River in the second half of the nineteenth century, which was at that time the most mysterious and impenetrable region on earth. Capturing in breathtaking prose the larger-than-life personalities of such notable figures as Stanley, Livingstone, Burton and many others, The White Nile remains a seminal work in tales of discovery and escapade, filled with incredible historical detail and compelling stories of heroism and drama.

Aquifer Test Modeling (Paperback): William C. Walton Aquifer Test Modeling (Paperback)
William C. Walton
R1,950 Discovery Miles 19 500 Ships in 12 - 17 working days

In recognition of the trend toward using numerical methdos for analyzing aquifer test data, Aquifer Test Modeling delineates the application of numerical Laplace inversion analytical equations and numerical models and demonstrates the use of public domain software. Written by a leading expert with over fifty years of experience, this highly practical text provides a thorough grounding in the terms and methods employed in aquifer test modeling, while also establishing a protocol for organizing and simplifying conceptual model definition and data analysis. Using graphs, tables, and sample datasets to enhance understanding, the author delineates the five major steps involved in the aquifer test modeling process. He discusses the importance of the conceptual model definition as a framework for organizing, simplifying, and idealizing information. The chapters cover the selection of appropriate aquifer test mathematical model equations compatible with previously defined conceptual models and highlight the importance of reviewing the mathematical assumption and the adjustment of data for any departures. They also explain format selection, technique selection, well function or drawdown calculation, and calibration. The book provides five sample data sets to assist the reader in becoming familiar with WTAQ and MODFLOW aquifer test modeling input and output data file contents with confined nonleaky and unconfined aquifer conditions. It includes conceptual models consisting of abbreviated descriptions of aquifer test facilities, aquifer test data, and aquifer parameter values together with selected sample file sets. These are just a few of the features that make the book a valuable tool for estimating the supply and contamination characteristics of aquifers.

Biofilms - Investigative Methods and Applications (Paperback): Hans-Curt Flemming, Ulrich Szewzyk, Thomas Griebe Biofilms - Investigative Methods and Applications (Paperback)
Hans-Curt Flemming, Ulrich Szewzyk, Thomas Griebe
R1,954 Discovery Miles 19 540 Ships in 12 - 17 working days

Until now, techniques for studying biofilms- the cellular colonies that live in drinking water systems, wastewater operations, even ground and surface water- have been limited. Yet during the last decade, biofilms have become a critical element in water quality preservation systems, a key component of wastewater treatment biological reactions and the subject of extensive microbiological inquiry. An understanding of biofilm development, structure and dynamics is one condition for improving water supplies and for addressing technical problems such as biofouling, corrosion and bioweathering. Biofilms: Investigative Methods and Applications provides the first in-depth assessment of current and experimental ways to study biofilms, both in sample form and in situ. It shows how sensors, microscopy, lasers, and calorimetry, among other tools, can be used to obtain data on the morphology and metabolism of biofilms. This text is the first to organize and examine the best methods for investigating biofilms. It covers culture-based methods and emerging nondestructive techniques. It also shows how they can be used to characterize biofilms in a variety of manmade settings, such as sewers, wastewater plants, and drinking water distribution systems, as well as in karsts and groundwater sources. In clarifying the way biofilms are studied, the book offers new insights into these living films. It also applies inquiry techniques to the many problems confronting the environmental specialist-corrosion control, biofouling, and the improvement of fixed reactors in wastewater treatment. At the same time it explains technologies for the controlled growth of biofilms and shows how biofilms can be effectively monitored and subjected to quantitative analysis. The technical information in Biofilms: Investigative Methods and Applications is designed to be of use to engineers and researchers and to be helpful in the generation of electronic data.

All the Fish in the Sea - Maximum Sustainable Yield and the Failure of Fisheries Management (Paperback): Carmel Finley All the Fish in the Sea - Maximum Sustainable Yield and the Failure of Fisheries Management (Paperback)
Carmel Finley
R921 Discovery Miles 9 210 Ships in 12 - 17 working days

Between 1949 and 1955, the State Department pushed for an international fisheries policy grounded in maximum sustainable yield (MSY). The concept is based on a confidence that scientists can predict, theoretically, the largest catch that can be taken from a species' stock over an indefinite period. And while it was modified in 1996 with passage of the Sustained Fisheries Act, MSY is still at the heart of modern American fisheries management. As fish populations continue to crash, however, it is clear that MSY is itself not sustainable. Indeed, the concept has been widely criticized by scientists for ignoring several key factors in fisheries management and has led to the devastating collapse of many fisheries. Carmel Finley reveals that the fallibility of MSY lies at its very inception--as a tool of government rather than science. The foundational doctrine of MSY emerged at a time when the US government was using science to promote and transfer Western knowledge and technology, and to ensure that American ships and planes would have free passage through the world's seas and skies. Finley charts the history of US fisheries science using MSY as her focus, and in particular its application to halibut, tuna, and salmon fisheries. Fish populations the world over are threatened, and All the Fish in the Sea helps to sound warnings of the effect of any management policies divested from science itself.

Pollutant Effects in Freshwater - Applied Limnology (Paperback, 3rd edition): J. Jacoby, E. Welch Pollutant Effects in Freshwater - Applied Limnology (Paperback, 3rd edition)
J. Jacoby, E. Welch
R1,766 Discovery Miles 17 660 Ships in 12 - 17 working days

Pollutant Effects in Freshwater provides a practical and concise introduction to the ecological consequences of water pollution in aquatic ecosystems. In tackling the problem of water quality deterioration, this book combines the limnological and water pollution literature to describe how pollutants in wastewater affect populations of organisms in freshwater environments. Substantially revised, updated and expanded, with additional specialist contributors, this retitled new edition of Ecological Effects of Wastewater will continue to focus on the effects and management of eutrophication, water quality standards to protect aquatic life, and widen the debate over micro organisms and their public health significance in the aquatic environment. With ever tighter controls on pollution levels of freshwater bodies being implemented and enforced world wide, this book is essential reading for students of public health and environmental engineering, and a reference tool for professionals in consultancies, contractors and for those in regulatory and enforcement bodies.

Future Sea - How to Rescue and Protect the World's Oceans (Paperback): Deborah Rowan Wright Future Sea - How to Rescue and Protect the World's Oceans (Paperback)
Deborah Rowan Wright
R391 Discovery Miles 3 910 Ships in 9 - 15 working days

A counterintuitive and compelling argument that existing laws already protect the entirety of our oceans-and a call to understand and enforce those protections. The world's oceans face multiple threats: the effects of climate change, pollution, overfishing, plastic waste, and more. Confronted with the immensity of these challenges and of the oceans themselves, we might wonder what more can be done to stop their decline and better protect the sea and marine life. Such widespread environmental threats call for a simple but significant shift in reasoning to bring about long-overdue, elemental change in the way we use ocean resources. In Future Sea, ocean advocate and marine-policy researcher Deborah Rowan Wright provides the tools for that shift. Questioning the underlying philosophy of established ocean conservation approaches, Rowan Wright lays out a radical alternative: a bold and far-reaching strategy of 100 percent ocean protection that would put an end to destructive industrial activities, better safeguard marine biodiversity, and enable ocean wildlife to return and thrive along coasts and in seas around the globe. Future Sea is essentially concerned with the solutions and not the problems. Rowan Wright shines a light on existing international laws intended to keep marine environments safe that could underpin this new strategy. She gathers inspiring stories of communities and countries using ocean resources wisely, as well as of successful conservation projects, to build up a cautiously optimistic picture of the future for our oceans-counteracting all-too-prevalent reports of doom and gloom. A passionate, sweeping, and personal account, Future Sea not only argues for systemic change in how we manage what we do in the sea but also describes steps that anyone, from children to political leaders (or indeed, any reader of the book), can take toward safeguarding the oceans and their extraordinary wildlife.

Novel Bioremediation Processes for Treatment of Seleniferous Soils and Sediment (Paperback): Shrutika Wadgaonkar Novel Bioremediation Processes for Treatment of Seleniferous Soils and Sediment (Paperback)
Shrutika Wadgaonkar
R2,428 Discovery Miles 24 280 Ships in 12 - 17 working days

The aim of this Ph.D. was to develop a technology for the remediation of seleniferous soils/sediments and to explore microbial reduction of selenium oxyanions under different respiration conditions and bioreactor configurations. Seleniferous soil collected from the wheat-grown agricultural land in Punjab (India) was characterized and its soil washing was optimized by varying parameters, where addition of oxidizing agents showed a maximum selenium removal efficiency. Aquatic plants, Lemna minor and Egeria densa were used to study phytoremediation of the selenium-rich soil leachate containing oxidizing agents. Additionally, migration of the soluble selenium fraction from the upper to the lower layers and its subsequent reduction and accumulation in the lower layers of the soil column was observed during soil flushing. Furthermore, the soil leachate containing selenium oxyanions obtained from soil washing was treated in a UASB reactor by varying the organic feed. Ex situ bioremediation of selenium oxyanions was studied under variable conditions. An aerobic bacterium (Delftia lacustris) capable of transforming selenate and selenite to elemental selenium was isolated and characterized. Anaerobic bioreduction of selenate coupled to methane oxidation was investigated in serum bottles and a biotrickling filter using marine sediment as inoculum. Finally, the effect of contamination of other chalcogen oxyanions (tellurium) on selenium bioreduction was studied in a continuous system (UASB reactor).

Treatment Marshes for Runoff and Polishing (Hardcover): Robert H. Kadlec Treatment Marshes for Runoff and Polishing (Hardcover)
Robert H. Kadlec
R5,478 Discovery Miles 54 780 Ships in 12 - 17 working days

Treatment Marshes for Runoff and Polishing represents the most comprehensive and up-date-date resource for the design, construction, and operation of marsh treatment systems. This new edition represents a complete rewrite of the surface flow sections of previous editions of Treatment Wetlands. It is based on the performance hundreds of treatment marshes over the past 40 years. Treatment Marshes focuses on urban and agricultural runoff, river and lake water improvement, and highly treated municipal effluents. New information from the past dozen years is used to improve data interpretation and design concepts. Topics included in this book are Diversity of marsh vegetation Analyses of the human use of treatment marshes New concepts of underground processes and functions Spectrum of marsh values spanning mitigation, restoration, enhancement, and water quality improvement Improved methods for calculation of evapotranspiration and wetland water temperatures Hydraulics of surface and subsurface flows in marshes Analysis of long track records for deterministic and probabilistic behavior Consideration of integrated microbial and vegetative contaminant removals via mass balances Uptake and emission of gases Performance of urban and agricultural wetlands Design procedures for urban and agricultural wetlands Reduction of trace metals, pesticides, pharmaceuticals, endocrine disruptors, and trace organics Updated capital and O&M economics, and valuation of ancillary benefits An updated list of over 1900 references

Fluoride Removal from Groundwater by Adsorption Technology - The occurrence, adsorbent synthesis, regeneration and disposal... Fluoride Removal from Groundwater by Adsorption Technology - The occurrence, adsorbent synthesis, regeneration and disposal (Hardcover)
Abdulai Salifu
R4,902 Discovery Miles 49 020 Ships in 12 - 17 working days

In the Eastern corridor of Northern region of Ghana, presence of high fluoride concentration in the groundwater has made many drilled boreholes unusable for drinking. Little is, however, known about the factors contributing to the occurrence of high fluoride in this part of Ghana and it's spatial distribution. Treatment of the fluoride-contaminated groundwater by adsorption is also hampered by the lack of suitable adsorbents that are locally available. Based on principal component analysis, and saturation indices calculations, this thesis highlights that, the predominant mechanisms controlling the fluoride enrichment probably include calcite precipitation and Na/Ca exchange processes, both of which deplete Ca from the groundwater, and promote the dissolution of fluorite. The mechanisms also include F-/OH- anion exchange processes, as well as evapotranspiration processes which concentrate the fluoride ions, hence increasing its concentration in the groundwater. Spatial mapping showed that the high fluoride groundwaters occur predominantly in the Saboba, Cheriponi and Yendi districts. The thesis further highlights that, modifying the surface of indigenous materials by an aluminium coating process, is a very promising approach to develop a suitable fluoride adsorbent. Aluminum oxide coated media reduced fluoride in water from 5. 0 +/- 0.2 mg/L to 1.5 mg/L (which is the WHO health based guideline for fluoride), in both batch and continuous flow column experiments in the laboratory. Kinetic and isotherm studies, thermodynamic calculations, as well as analytical results from Fourier Transform Infrared Spectroscopy and Raman spectroscopy, suggest the mechanism of fluoride adsorption onto aluminium oxide coated media involved both physisorption and chemisorption processes. Field testing in a fluoritic community in Northern Ghana showed that the adsorbent is also capable of treating fluoride-contaminated groundwater in field conditions, suggesting it is a promising defluoridation adsorbent. The adsorbent also showed good regenerability potential that would allow re-use, which could make it practically and economically viable. Additional research is, however, required to further increase the fluoride adsorption capacity of developed adsorbent.

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