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Books > Professional & Technical > Environmental engineering & technology > Sanitary & municipal engineering > Water supply & treatment

An Integrated Approach for the Improvement of Flood Control and Drainage Schemes in the Coastal Belt of Bangladesh (Hardcover):... An Integrated Approach for the Improvement of Flood Control and Drainage Schemes in the Coastal Belt of Bangladesh (Hardcover)
Liakath Ali
R5,598 Discovery Miles 55 980 Ships in 12 - 17 working days

This study describes the development of water management in Bangladesh, including flood control and drainage schemes. The present landuse situation and hydrological conditions are presented and the coastal lowland development of Southeast Asia is reviewed. A performance analysis of different flood control and drainage systems are discussed, with reference to the coastal belt of Bangladesh. This book aims to set out an approach for sustainable development and water management for coastal Bangladesh, developing the concepts of effective techniques, tools and institutional infrastructure which should support implementation of flood control and drainage schemes.

Oil Spill Dispersants - Mechanisms of Action and Laboratory Tests (Hardcover): Clayton-Payne Oil Spill Dispersants - Mechanisms of Action and Laboratory Tests (Hardcover)
Clayton-Payne
R3,900 R3,575 Discovery Miles 35 750 Save R325 (8%) Ships in 12 - 17 working days

Oil Spill Dispersants: Mechanisms of Action and Laboratory Tests provides a comprehensive summary of current information available regarding the general formulation of commercial dispersants and their function to lower oil-water interfacial tension. The book considers how chemical dispersants work for oil spills, the properties and chemistry of oils (including weathering state), the variables that affect dispersant performance, and the relationships between laboratory methods and field situations.
The book also considers the strengths and limitations of specific laboratory tests, including brief discussions of the applicability of results for estimating dispersant performance in field trials or conditions encountered during real spill events. Laboratory tests are separated into four groups: tank tests, shake/flask tests, interfacial surface tension tests, and flume tests. Rapid-screen field tests are considered as a separate group. Recommendations for improvements in future laboratory testing are offered as well. Oil Spill Dispersants will be useful for regulators evaluating dispersant agents, field personnel involved with using dispersants, laboratory scientists studying performance and behavior of oil and dispersants, and managers responsible for designing studies related to the treatment of oil slicks with dispersants.

Water, Agriculture and the Environment in Spain: can we square the circle? (Paperback): Lucia De Stefano, M. Ramon Llamas Water, Agriculture and the Environment in Spain: can we square the circle? (Paperback)
Lucia De Stefano, M. Ramon Llamas
R2,327 Discovery Miles 23 270 Ships in 12 - 17 working days

"The world water problems are a due to bad governance, not to physical water scarcity." This book is inspired by this statement and explores whether it holds in a specific country, Spain, where climatic conditions - Spain is one of the most arid countries of the European Union - would fully justify saying that water problems are due to physical water scarcity. The metrification of water uses and their monetary value is a first important step in understanding how reallocation of water among users could help mitigating many of current water problems in Spain. However, water reallocation among users or from users to nature is far from simple. Initiatives portrayed as the solution to the water governance 'jigsaw' - e.g. water trade, improved water use efficiency, users collective action, public participation - are not free of difficulties and shortcomings. The book explores the growing need for maintaining Spain's natural capital and the human component of water governance - people's needs, wishes, (vested) interests, aspirations - that often determine the result of decisions and, sometimes, lead water management to a deadlock. This book takes a step forward in showing a more complex - and also closer to reality - picture of water governance in Spain.

Designing Water Disaster Management Policies - Theory and Empirics (Paperback): Chennat Gopalakrishnan Designing Water Disaster Management Policies - Theory and Empirics (Paperback)
Chennat Gopalakrishnan
R1,076 Discovery Miles 10 760 Ships in 12 - 17 working days

This book represents a landmark effort to probe and analyze the theory and empirics of designing water disaster management policies. It consists of seven chapters that examine, in-depth and comprehensively, issues that are central to crafting effective policies for water disaster management. The authors use historical surveys, institutional analysis, econometric investigations, empirical case studies, and conceptual-theoretical discussions to clarify and illuminate the complex policy process. The specific topics studied in this book include a review and analysis of key policy areas and research priority areas associated with water disaster management, community participation in disaster risk reduction, the economics and politics of 'green' flood control, probabilistic flood forecasting for flood risk management, polycentric governance and flood risk management, drought management with the aid of dynamic inter-generational preferences, and how social resilience can inform SA/SIA for adaptive planning for climate change in vulnerable areas. A unique feature of this book is its analysis of the causes and consequences of water disasters and efforts to address them successfully through policy-rich, cross-disciplinary and transnational papers. This book is designed to help enrich the sparse discourse on water disaster management policies and galvanize water professionals to craft creative solutions to tackle water disasters efficiently, equitably, and sustainably. This book should also be of considerable use to disaster management professionals, in general, and natural resource policy analysts. This book was published as a special issue of the Journal of Natural Resource Policy Research.

The Economics of Evaluating Water Projects - Hydroelectricity Versus Other Uses (Hardcover, 2012 ed.): Per-Olov Johansson,... The Economics of Evaluating Water Projects - Hydroelectricity Versus Other Uses (Hardcover, 2012 ed.)
Per-Olov Johansson, Bengt Kristroem
R2,863 Discovery Miles 28 630 Ships in 10 - 15 working days

This book presents research on a kind of water use conflicts that is becoming more and more common and important: How to best manage moving water in times of increasing demand for electricity as well as environmental services. How should decisions be made between water use for electricity generation or for environmental and recreational benefits? The authors develop a simple general equilibrium model of a small open economy which is used to derive a cost-benefit rule that can be used to assess projects that divert water from electricity generation to recreational and other uses (or vice versa). The cost-benefit rule is then applied to the specific case of a proposed change at a Swedish hydropower plant. The book provides a manual for the evaluation of river regulations which can easily be replicated in other studies.

Politics and Governance in Water Pollution Prevention in China (Hardcover, 1st ed. 2019): Liping Dai Politics and Governance in Water Pollution Prevention in China (Hardcover, 1st ed. 2019)
Liping Dai
R1,521 Discovery Miles 15 210 Ships in 10 - 15 working days

This book applies an interdisciplinary governance assessment framework to assess China's water quality governance from a holistic point of view. The project explores China's water quality status, water policy discourses, water regulations, public participation in water governance, the path towards green water law, eco-compensation approach in water quality management and the implementation mechanism for achieving water goals. It will appeal to academics in water law, researchers and practitioners dealing with water management, as well as a general audience interested in water issues.

Groundwater Remediation, Volume VIII (Hardcover): Wesley Eckenfelder Groundwater Remediation, Volume VIII (Hardcover)
Wesley Eckenfelder; R. J. Charbeneau
R6,747 Discovery Miles 67 470 Ships in 12 - 17 working days

This book reviews the sources of soil and groundwater contamination and the potential remediation technologies. It focuses on remediation technologies that are commonly utilized in practice, and discusses a number of innovative technologies that show promise for special problem circumstances.

Effect of Sulphide on Enhanced Biological Phosphorus Removal (Paperback): Francisco Rubio-Rincon Effect of Sulphide on Enhanced Biological Phosphorus Removal (Paperback)
Francisco Rubio-Rincon
R2,534 Discovery Miles 25 340 Ships in 12 - 17 working days

The enhanced biological removal of phosphorus (EBPR) is a popular process due to high removal efficiency, low operational costs, and the possibility of phosphorus recovery. Nevertheless, the stability of the EBPR depends on different factors such as: temperature, pH, and the presence of toxic compounds. While extensive studies have researched the effects of temperature and pH on EBPR systems, little is known about the effects of different toxic compounds on EBPR. For example, sulphide has shown to inhibit different microbial activities in the WWTP, but the knowledge about its effects on EBPR is limited. Whereas the sulphide generated in the sewage can cause a shock effect on EBPR, the continuously exposure to sulphide potentially generated in WWTP can cause the acclimatization and adaptation of the biomass. This research suggests that sulphate reducing bacteria can proliferate in WWTP, as they are reversibly inhibited by the recirculation of sludge through anaerobic-anoxic-oxic conditions. The research enhances the understanding of the effect of sulphide on the anaerobic-oxic metabolism of PAO. It suggests that the filamentous bacteria Thiothrix caldifontis could play an important role in the biological removal of phosphorus. It questions the ability of PAO to generate energy from nitrate respiration and its use for the anoxic phosphorus uptake. Thus, the results obtained in this research can be used to understand the stability of the EBPR process under anaerobic-anoxic-oxic conditions, especially when exposed to the presence of sulphide.

Incentives in Water Quality Management - France and the Ruhr Area (Hardcover): Blair T. Bower, Remi Barre, Jochen Kuhner,... Incentives in Water Quality Management - France and the Ruhr Area (Hardcover)
Blair T. Bower, Remi Barre, Jochen Kuhner, Clifford S. Russell
R3,861 Discovery Miles 38 610 Ships in 12 - 17 working days

Incentives in Water Quality Management explores the role of effluent charges in France and the Ruhr area of the federal republic of Germany by delving into both regulatory and economic systems that are utilised in the water quality management of these two areas. Originally published in 1981, these studies place an emphasis on the necessity of legislation in effective water quality management whilst attempting to create a complete picture of the water quality management systems in place in France and the Ruhr area. This title will be of interest to students of Environmental Studies.

Water Reuse Policies for Potable Use (Hardcover): Cecilia Tortajada, Choon Nam Ong Water Reuse Policies for Potable Use (Hardcover)
Cecilia Tortajada, Choon Nam Ong
R4,731 Discovery Miles 47 310 Ships in 12 - 17 working days

As water demand has increased globally and resources have become more limited because of physical scarcity, over-exploitation and pollution, it has been necessary to develop more options for water supplies. These options include the production at large scale of high-quality reused water from municipal sources for potable uses. Their economic, social and environmental benefits have been many as they have addressed supply scarcity, efficient resource use and environmental and public health considerations. This book includes discussions on potable water reuse history; emerging contaminants and public health; public-private partnerships in the water reuse sector; regulatory frameworks for reused water in the United States and Europe; experiences in Australia, China in general and Beijing in particular, Singapore and Windhoek; narratives and public acceptance and perceptions of alternative water sources. The main constraints on implementation of water reuse projects in different parts of the world seem to have been lack of full public support due to perceived health hazards and environmental impacts. A main handicap has been that governments and water utilities have been slow to understand public concerns and perceptions. After several backlashes, public information, communication and awareness campaigns, broader participation and educational programmes have become integral parts of development policy and decision-making frameworks.

Principles of Groundwater Engineering (Hardcover): William C. Walton Principles of Groundwater Engineering (Hardcover)
William C. Walton
R5,749 R5,215 Discovery Miles 52 150 Save R534 (9%) Ships in 12 - 17 working days

The purpose of this book is to bring together under one cover the principles of groundwater engineering. The concise format has produced a handy, comprehensive manual for professionals working in the groundwater industry. The author places emphasis on the application of theory and practical aspects of groundwater engineering. Well-cited references throughout the text guide you through the technology, scientific principles, and theoretical background of groundwater engineering. Exhaustive appendices contain quantitative data necessary for in-groundwater flow and contaminant migration equations. Principles of Groundwater Engineering is the state-of-the-art book that bridges the gap between groundwater theory and groundwater problem solving.

Radon, Radium, and Uranium in Drinking Water (Hardcover): C.Richard Cothern Radon, Radium, and Uranium in Drinking Water (Hardcover)
C.Richard Cothern
R5,711 R5,177 Discovery Miles 51 770 Save R534 (9%) Ships in 12 - 17 working days

With new regulations for radionuclides in drinking water, this volume will be valuable for understanding where radionuclides come from, how their prescence is determined, where humans come in contact with them, health effects consequences (both for individuals and communities), removal from water, disposal problems and cost implications.

Sustainable Water Management and Technologies, Two-Volume Set (Hardcover): Daniel H. Chen Sustainable Water Management and Technologies, Two-Volume Set (Hardcover)
Daniel H. Chen
R8,857 Discovery Miles 88 570 Ships in 12 - 17 working days

Addressing two cornerstone areas in the field of water sustainability, management and technology, this two-volume set provides the most comprehensive coverage of the topic available. It presents best practices as a foundation and stresses emerging technologies and strategies that facilitate water sustainability for future generations. Timely water topics like unconventional oil and gas development, global warming with changing precipitation patterns, integration of water and energy sustainability, and green manufacturing are discussed. The first volume covers strategy and management issues, such as water resource planning, water resource supply systems and use patterns, policy making, and implementation of proper regulations as an integrated part of the solution or approach toward water sustainability. It discusses best management practices for water resource allocation, groundwater protection, and water quality assurance, especially for rural, arid, and underdeveloped regions of the world. The second volume covers cost-effective water treatment and reclamation technologies. Emphasis is placed on emerging nanotechnology, biotechnology, and information technology applications as well as sustainable processes and products to protect the environment and human health, save water and energy, and minimize material use.

Manganese Removal from Groundwater - Role of Biological and Physico-Chemical Autocatalytic Processes (Paperback): J. H. Bruins Manganese Removal from Groundwater - Role of Biological and Physico-Chemical Autocatalytic Processes (Paperback)
J. H. Bruins
R1,344 Discovery Miles 13 440 Ships in 12 - 17 working days

In The Netherlands, Belgium and other European countries, manganese is removed by conventional groundwater treatment with aeration and rapid (sand) filtration. Such a treatment process is easy to operate, cost effective and sustainable, because it does not make use of strong oxidants such as O3, Cl2, ClO2 and KMnO4 with the associated risk of by-product formation and over or under dosing. However, application of aeration-filtration is also facing drawbacks, especially the long ripening time of filter media. Due to the long ripening time, water companies have to waste large volumes of treated water, making this process less sustainable. Also, costs associated with filter media ripening (man power, electricity, operational and analysis costs) are high. Therefore decreasing the filter ripening time, regarding manganese removal is a big issue. Although already extended research has been carried out into manganese removal, the controlling mechanisms, especially of the start up face of filter media ripening, are not fully understood yet. The emphasis of this thesis is to provide a better understanding of the mechanisms involved in the ripening of virgin filter media, regarding manganese removal and how to shorten or completely eliminate the long ripening period of filters with virgin material. This thesis therefore highlights the role of the formation of a manganese oxide coating on virgin filter media. Characterization and identification revealed that the responsible manganese oxide for an effective manganese removal was Birnessite. It was found that Birnessite, formed at the beginning of the ripening process was of a biological origin. Based on the knowledge that manganese removal in conventional groundwater treatment is initiated biologically, long ripening times may be reduced by creating conditions favouring the growth of manganese oxidizing bacteria, e.g., by limiting the back wash frequency and / or intensity. Additionally, this thesis also shows that the use of freshly prepared manganese oxide, containing Birnessite, can completely eliminate filter media ripening time.

Water and Wastewater Examination Manual (Hardcover, New): V.Dean Adams Water and Wastewater Examination Manual (Hardcover, New)
V.Dean Adams
R5,317 Discovery Miles 53 170 Ships in 12 - 17 working days

This new manual is an indispensable working lab guide and reference for water/wastewater quality analysis. Based on procedures from "Standard Methods" and "Methods for Chemical Analysis of Water and Waste (EPA)," and other pertinent references the Water and Wastewater Examination Manual is an excellent complement to these references-that you will want to keep at your fingertips. Written especially for use by water quality laboratory technicians and water/wastewater operators, managers and supervisors-who will use this practical manual every day. Procedures are included for parameters frequently used in water quality analysis.

Bioreduction of Selenite and Tellurite by Phanerochaete Chrysosporium (Paperback): Erika Jimena Espinosa-Ortiz Bioreduction of Selenite and Tellurite by Phanerochaete Chrysosporium (Paperback)
Erika Jimena Espinosa-Ortiz
R2,007 Discovery Miles 20 070 Ships in 12 - 17 working days

Selenium (Se) and tellurium (Te) are metalloids of commercial interest due to their physicochemical properties. The water soluble oxyanions of these elements (selenite, selenate, tellurite and tellurate) exhibit high toxicities; hence, their release in the environment is of great concern. This study demonstrates the potential use of fungi as Se- and Te-reducing organisms. The response of Phanerochaete chrysosporium to the presence of selenite and tellurite was evaluated, as well as its potential application in wastewater treatment and production of nanoparticles. Growth stress and morphological changes were induced in P. chrysosoporium when exposed to selenite and tellurite. Synthesis of Se0 and Te0 nanoparticles entrapped in the fungal biomass was observed, as well as the formation of unique Se0-Te0 nanocomposites when the fungus was cultivated concurrently with Se and Te. The response of P. chrysosporium to selenite exposure was investigated in different modes of fungal growth (pellets and biofilm). A bioprocess for selenite removal and Se0 nanoparticles recovery using an up-flow fungal pelleted reactor was developed. 70% selenite removal (10 mg Se L-1 d-1) was achieved under continuous mode. The use of Se0 nanoparticles immobilized in P. chrysosporium pellets as a new sorbent material for the removal of heavy metals from wastewater was demonstrated.

Optimization of Micro Processes in Fine Particle Agglomeration by Pelleting Flocculation (Hardcover): Benjamin Oyegbile Optimization of Micro Processes in Fine Particle Agglomeration by Pelleting Flocculation (Hardcover)
Benjamin Oyegbile
R3,139 Discovery Miles 31 390 Ships in 12 - 17 working days

Efficient particle separation in order to meet stringent regulatory standards represent one of the biggest challenges facing the process industry operators today. Emerging environmental problems such as climate change, population growth and natural resource depletion make it more compelling to undertake research into alternative phase separation techniques and optimization of existing ones. Meeting this challenge requires innovative, revolutionary and integrated approach in the design and optimization of various unit processes in fine particle separation. Flocculation is widely used as an effective phase separation technique across many process industries such as water and wastewater treatment and in minerals processing. In this work, a new pre-treatment technique was developed using a patented bench scale reactor unit as a technical proof of concept. Furthermore, the book provides a valuable insight into the hydrodynamics and fluid-particle interactions within the agglomeration units. The relatively high solids content of the stable pellets (approximately 30 %) and very low residual turbidity of the post-sedimentation supernatant (7 NTU) clearly demonstrate the potential of this technique. In addition to significantly improving the subsequent solid-liquid separation efficiency, this study also showed that the effluent can be recycled back into the sewer network or utilized for non-portable reuse. The findings obtained from this research will be extremely useful in the scaling up and optimization of the reactor system.

Nested algorithms for optimal reservoir operation and their embedding in a decision support platform (Paperback): Blagoj... Nested algorithms for optimal reservoir operation and their embedding in a decision support platform (Paperback)
Blagoj Delipetrev
R2,004 Discovery Miles 20 040 Ships in 12 - 17 working days

Reservoir operation is a multi-objective optimization problem, and is traditionally solved with dynamic programming (DP) and stochastic dynamic programming (SDP) algorithms. The thesis presents novel algorithms for optimal reservoir operation, named nested DP (nDP), nested SDP (nSDP), nested reinforcement learning (nRL) and their multi-objective (MO) variants, correspondingly MOnDP, MOnSDP and MOnRL. The idea is to include a nested optimization algorithm into each state transition, which reduces the initial problem dimension and alleviates the curse of dimensionality. These algorithms can solve multi-objective optimization problems, without significantly increasing the algorithm complexity or the computational expenses. It can additionally handle dense and irregular variable discretization. All algorithms are coded in Java and were tested on the case study of the Knezevo reservoir in the Republic of Macedonia. Nested optimization algorithms are embedded in a cloud application platform for water resources modeling and optimization. The platform is available 24/7, accessible from everywhere, scalable, distributed, interoperable, and it creates a real-time multiuser collaboration platform. This thesis contributes with new and more powerful algorithms for an optimal reservoir operation and cloud application platform. All source codes are available for public use and can be used by researchers and practitioners to further advance the mentioned areas.

Fluoride in Drinking Water - Status, Issues, and Solutions (Hardcover): A.K. Gupta, S. Ayoob Fluoride in Drinking Water - Status, Issues, and Solutions (Hardcover)
A.K. Gupta, S. Ayoob
R3,580 Discovery Miles 35 800 Ships in 12 - 17 working days

Explore the Health Effects of Fluoride Pollution Fluoride in Drinking Water: Status, Issues, and Solutions establishes the negative impacts of naturally occurring fluoride on human health and considers the depth and scope of fluoride pollution on an international scale. The book discusses current global water quality and fluoride-related issues and draws overall awareness to the problems associated with fluoride in drinking water. Utilizing recent scientific studies to examine the current status of fluoride pollution, it provides a fundamental understanding of fluorosis, describes health problems associated with fluorosis, and discusses viable scientific solutions. The book places special emphasis on India, Africa, China, and other countries deeply affected by fluoride pollution. A single, comprehensive source covering health issues related to fluoride and its effect on humans, this book: Compiles information from scientific literature on the state of fluoride pollution Characterizes the human impacts of fluorosis Provides a comparative evaluation of technologies used for defluoridation Gives a comprehensive account of human health effects with appropriate scientific descriptions and photographs Includes detailed descriptions on the geochemistry of fluoride entry into groundwater aquifers Presents a case study that deals with the successful removal of fluoride from drinking water A vital resource for environmental and public health officials as well as academic researchers in the area, Fluoride in Drinking Water: Status, Issues, and Solutions covers human health issues associated with fluoride-rich water and describes relevant techniques for defluoridation that can be used to overcome the stress, issues, and challenges of natural fluoride in drinking water.

Water Demand for Steam Electric Generation (Routledge Revivals) (Paperback): Paul H. Cootner, George O. G Lof Water Demand for Steam Electric Generation (Routledge Revivals) (Paperback)
Paul H. Cootner, George O. G Lof
R1,267 Discovery Miles 12 670 Ships in 12 - 17 working days

In this book, first published in 1965, the authors identify the technological opportunities and costs of water recirculation and water quality adjustment in thermal plants, relating them to the possibilities for minimal expenditure and maximum efficiency in the use of water for servicing an entire region with thermal power. Water Demand for Steam Electric Generation will be of interest to students of environmental studies.

Advances in Membrane Technologies for Water Treatment - Materials, Processes and Applications (Hardcover): Angelo Basile,... Advances in Membrane Technologies for Water Treatment - Materials, Processes and Applications (Hardcover)
Angelo Basile, Alfredo Cassano, Navin K. Rastogi
R7,874 Discovery Miles 78 740 Ships in 12 - 17 working days

Advances in Membrane Technologies for Water Treatment: Materials, Processes and Applications provides a detailed overview of advanced water treatment methods involving membranes, which are increasingly seen as effective replacements for a range of conventional water treatment methods. The text begins with reviews of novel membrane materials and advances in membrane operations, then examines the processes involved with improving membrane performance. Final chapters cover the application of membrane technologies for use in water treatment, with detailed discussions on municipal wastewater and reuse in the textile and paper industries.

Water and Security in Central Asia - Solving a Rubik's Cube (Paperback): Virpi Stucki, Kai Wegerich, Muhammad Mizanur... Water and Security in Central Asia - Solving a Rubik's Cube (Paperback)
Virpi Stucki, Kai Wegerich, Muhammad Mizanur Rahaman, Olli Varis
R1,492 Discovery Miles 14 920 Ships in 12 - 17 working days

Examining the water, development and security linkages in Central Asia can feel a bit like solving a Rubik's cube. The Rubik's cube starts to usually find structure and the different pieces find their places when its solver adopts a systematic approach. Still, solving the whole cube takes time and perseverance. This is also the case with water and security in Central Asia as demonstrated by the chapters in this book. In the case of water and security in Central Asia, there are many "faces", including not only the Central Asian states but also the neighbouring countries and other players of global geopolitics; "stickers" such as policies, practices, causes, and impacts; and "colours" such as the different stakeholders, ranging from the micro and meso levels to the macro level. Understanding all these, or getting clarity on the nexus, can seem extremely challenging. Even though none of the chapters alone answers the question of what constitutes water and security in Central Asia, each of them gives thoughtful ideas and information on the complexity of the issue. This book was published as a special issue of the International Journal of Water Resources Development.

Transferable Groundwater Rights - Integrating Hydrogeology, Law and Economics (Paperback): Andreas N. Charalambous Transferable Groundwater Rights - Integrating Hydrogeology, Law and Economics (Paperback)
Andreas N. Charalambous
R1,550 Discovery Miles 15 500 Ships in 12 - 17 working days

The principle of transferable groundwater rights is that by making water rights capable of being traded in the market, water resources can be used more sustainably and efficiently. Groundwater would achieve its economic value, by switching from the high volume-low value irrigation, which is prevalent with many farmers, particularly in South Asia, to low volume-high value urban supply or the growing of intensive horticultural or cash crops. This book discusses transferable groundwater rights in their broader context. It starts with a detailed description of the physical aspects of groundwater, which non-technical readers should find useful, followed by a discussion of legal and economic aspects. Water transfers and the international experiences in transferable groundwater rights are dealt with in detail in two subsequent chapters. A model is presented to guide those involved in water resources management and planning in their decision process to introduce transferable groundwater rights and water rights trading. The author concludes that transferable groundwater rights potentially offer a better alternative to land-based water rights systems. However, he casts serious doubt on whether groundwater rights trading on its own can achieve water resources sustainability, environmental protection and social equity. Government intervention seems to be almost always needed to assist the water rights market and take responsibility for any of its adverse consequences.

Water Management in 2020 and Beyond (Hardcover, 2009 ed.): Asit K Biswas, Cecilia Tortajada, Rafael Izquierdo-Avino Water Management in 2020 and Beyond (Hardcover, 2009 ed.)
Asit K Biswas, Cecilia Tortajada, Rafael Izquierdo-Avino
R3,036 Discovery Miles 30 360 Ships in 10 - 15 working days

Water is intertwined in the daily life of humans in countless ways. The importance of water as a driver for health, food security, and quality of life and as a pillar for economic development is unique. As water affects human lives, the mankind also effects the hydrological cycle, in all dimensions from the local to the global scale. Food production accounts for 90% of water use in developing countries. Hydropower production evokes emotions; yet sustainable energy production is among cornerstones of economic development. The damages caused by floods and droughts are escalating all over the world. The human impacts on ecosystems are increasing as well. Water is largely a political good since a bulk of the mankind lives in river basins shared by two or more nations.
These complexities are approached in the book in depth. The analyses include consideration of how developments in seemingly unrelated processes and sectors such as globalisation, free trade, energy, security, information and communication revolutions, health-related issues such as HIV/AIDS, as well as emerging developments in sectors that are linked more conventionally to water, such as population growth, urbanisation, technological development, agriculture, infrastructure, energy, management of water quality and ecosystem health, are likely to affect water management in the future. For the first time, a pragmatic attempt is make to define a realistic framework for water management in 2020 with leading experts from different parts of the world as well as different disciplines.

Pathogen removal using saturated sand columns supplemented with hydrochar (Paperback): Jae Wook Chung Pathogen removal using saturated sand columns supplemented with hydrochar (Paperback)
Jae Wook Chung
R1,023 Discovery Miles 10 230 Ships in 12 - 17 working days

Lack of clean water is one of the most important public health challenges in less developed communities. Due to insufficient financial and technical resources in places in need, development of low-cost water treatment technologies can play a key role in sustainable water provision. In this context, this PhD research investigated the removal of pathogenic microorganisms in simple sand filtration set-ups supplemented with low-cost adsorbents (hydrochar) produced via hydrothermal carbonization of biowastes. Two types of hydrochar, derived from hydrothermal carbonization of agricultural residue of maize and stabilized sewage sludge from wastewater treatment plant, were evaluated as adsorbents for Escherichia coli removal in saturated sand columns. The removal efficiency of sand columns amended with these adsorbents improved from 20-70% to ~90 % by alkali activation carried out in room temperatures using 1 M potassium hydroxide solution. This PhD research also demonstrates the removal of human pathogenic viruses in sand columns supplemented with hydrochar adsorbents derived from stabilized sewage sludge and fresh swine waste. In order to enumerate human pathogenic rotavirus and adenovirus in virus removal experiments, low-cost polymerase chain reaction assays were developed under this PhD study. These assays show a competent performance in analyzing virus concentrations in both laboratory and environmental samples. Amendment with either hydrochar (without alkali activation) in sand columns was able to remove more than 99% of both viruses.

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