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

Globalization of Water Governance in South Asia (Paperback): Vishal Narain, Chanda Gurung Goodrich, Jayati Chourey, Anjal... Globalization of Water Governance in South Asia (Paperback)
Vishal Narain, Chanda Gurung Goodrich, Jayati Chourey, Anjal Prakash
R1,418 Discovery Miles 14 180 Ships in 10 - 15 working days

Globalization has significantly redefined the nature of governance in the water sector. Non-state actors-multilateral and transnational donor agencies and corporations, non-government organizations, markets, and civil society at large-are assuming a bigger role in public policy-making for water resource management. New discourses on neoliberalism, integrated water resource management (IWRM), public-private partnerships, privatization, and gender equity have come to influence water governance. Drawing upon detailed case studies from India, Bangladesh, Nepal, Sri Lanka, and Bhutan, this volume shows the implications of these new global paradigms for water allocation and management practices, institutions and governance structures in South Asia. It suggests that, despite claims to the contrary, they have done little to further human well-being, reduce gender disparity, or improve accountability and transparency in the system. Steering away from blueprint approaches, it argues for a more nuanced and contextual understanding of water management challenges, based on local knowledge and initiatives. This book will be useful to those interested in political economy and water governance, natural resource management, environmental studies, development studies, and public administration, as well as to water professionals, policy-makers and civil society activists.

Sustainable Water Management in Urban Environments (Hardcover, 1st ed. 2016): Tamim Younos, Tammy E Parece Sustainable Water Management in Urban Environments (Hardcover, 1st ed. 2016)
Tamim Younos, Tammy E Parece
R7,231 R6,451 Discovery Miles 64 510 Save R780 (11%) Ships in 10 - 15 working days

This volume focuses on practical aspects of sustainable water management in urban areas and presents a discussion of key concepts, methodologies, and case studies of innovative and evolving technologies. Topics include: (1) challenges in urban water resiliency; (2) water and energy nexus; (3) integrated urban water management; and (4) water reuse options (black water, gray water, rainwater). This volume serves as a useful reference for students and researchers involved in holistic approaches to water management, and as a valuable guide to experts in governmental agencies as well as planners and engineers concerned with sustainable water management systems in urban environments.

The Practice of Reservoir Engineering (Revised Edition), Volume 36 (Paperback, Revised edition): L.P. Dake The Practice of Reservoir Engineering (Revised Edition), Volume 36 (Paperback, Revised edition)
L.P. Dake
R2,330 Discovery Miles 23 300 Ships in 10 - 15 working days

This revised edition of the bestselling "Practice of Reservoir Engineering" has been written for those in the oil industry requiring a working knowledge of how the complex subject of hydrocarbon reservoir engineering can be applied in the field in a practical manner. Containing additions and corrections to the first edition, the book is a simple statement of how to do the job and is particularly suitable for reservoir/production engineers as well as those associated with hydrocarbon recovery.


This practical book approaches the basic limitations of reservoir engineering with the basic tenet of science: Occam's Razor, which applies to reservoir engineering to a greater extent than for most physical sciences - if there are two ways to account for a physical phenomenon, it is the simpler that is the more useful. Therefore, simplicity is the theme of this volume.
Reservoir and production engineers, geoscientists, petrophysicists, and those involved in the management of oil and gas fields will want this edition.

Water Ethics - A Values Approach to Solving the Water Crisis (Hardcover, 2nd edition): David Groenfeldt Water Ethics - A Values Approach to Solving the Water Crisis (Hardcover, 2nd edition)
David Groenfeldt
R4,569 Discovery Miles 45 690 Ships in 10 - 15 working days

Fully revised and updated, this second edition of Water Ethics continues to consolidate water ethics as a key dimension of water-related decisions. The book introduces the idea that ethics are an intrinsic dimension of any water policy, program, or practice, and that understanding what ethics are being acted out in water policies is fundamental to an understanding of water resource management. Alongside updated references and the introduction of discussion questions and recommended further reading, this new edition discusses in depth three significant developments since the publication of the first edition in 2013. The first is the growing awareness of the climate crisis as an existential threat, and associated concern about adaptive strategies for sustainable water management and ways of using water management for climate mitigation (e.g., practically through agricultural soil management and conceptually through ethics awareness). Second, there has been increased clarity among the religious community, Indigenous leaders, and progressive academics that ethics needs to become an arena for application and action (e.g., the Vatican encyclical Laudato Si, protests at Standing Rock and Flint, Michigan, in the US, and climate demonstrations worldwide). Thirdly, there have been new normative water standards ranging from "water stewardship" (industry initiative), water charters (Berlin) and the on-going initiative to develop a global water ethics charter. Drawing on case studies from countries including Australia, India, the Philippines, South Africa, and the United States, this textbook is essential reading for students of environmental ethics and water governance and management.

Water Services in Small Towns - Experiences from the Global South (Paperback): Klaas Schwartz, Mireia Tutusaus Water Services in Small Towns - Experiences from the Global South (Paperback)
Klaas Schwartz, Mireia Tutusaus
R2,800 Discovery Miles 28 000 Ships in 10 - 15 working days

The importance of small towns is gaining increased recognition as a result of two developments. The first development concerns the possible role of small towns in migration flows and urbanization. Development of small towns, in the form of improved basic services and other amenities, has been promoted in order to abate the impact of urbanization on large urban centres and to alleviate service provision pressures in major urban centers, whilst stimulating rural economies and eventually prompting social transformations. The second development concerns the targets set by the SDGs in 2015. SDG6 requires countries to ensure universal and equitable water services by 2030. This inclusive target requires that the water services needs of small towns are considered in the expansion of sustainable and equitable water services. This book aims to contribute to the study of water services in small towns by critically examining different approaches and experiences of water supply in small towns. It brings together empirical testimonies of how the implementation of reductionist models and the perseverance of certain principles underlying these models in the water sector have yielded suboptimal results. Much remains to be done before achieving universal service coverage in small towns is likely. In order to do that, we should start speaking of small towns as a category on their own and continue the work in elaborating further what these are and how they work. In Focus - a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

The Politics of Fresh Water - Access, conflict and identity (Paperback): Catherine M. Ashcraft, Tamar Mayer The Politics of Fresh Water - Access, conflict and identity (Paperback)
Catherine M. Ashcraft, Tamar Mayer
R1,456 Discovery Miles 14 560 Ships in 10 - 15 working days

Water scarcity is not simply the result of what nature has to offer but always involves power relations and political decisions. This volume discusses the politics of the freshwater crisis, specifically how access to water is determined in different regions and historical periods, how conflict is constructed and managed, and how identity and efforts to control water systems, through development, technologies, and institutions, shape one another. The book analyzes responses to the water crisis as efforts to mitigate water insecurity and as expressions of collective identity that legitimate, resist, or seek to transform existing inequalities. The chapters focus on different processes that contribute to freshwater scarcity, including land use decisions, pollution, privatization, damming, climate change, discrimination, water management institutions and technology. Case studies are included from North and South America, Africa, Asia, Europe and New Zealand.

Water Crises and Governance - Reinventing Collaborative Institutions in an Era of Uncertainty (Paperback): David A. Sonnenfeld,... Water Crises and Governance - Reinventing Collaborative Institutions in an Era of Uncertainty (Paperback)
David A. Sonnenfeld, Peter Leigh Taylor
R1,023 R792 Discovery Miles 7 920 Save R231 (23%) Ships in 10 - 15 working days

Water Crises and Governance critically examines the relationship between water crises and governance in the face of challenges to provide water for growing human demand and environmental needs. Water crises threaten the assumptions and accepted management practices of water users, managers and policymakers. In developed and developing world contexts from North America and Australasia, to Latin America, Africa and China, existing institutions and governance arrangements have unintentionally provoked water crises while shaping diverse, often innovative responses to management dilemmas. This volume brings together original field-based studies by social scientists investigating water crises and their implications for governance. Contributors to this collection find that water crises degrade environments, place untenable burdens on stakeholders, and produce or exacerbate social conflict, undermining ecological and social conditions that sustain effective collaboration. At the same time, water crises can promote institutional change that "resets" governance, promoting unusual and creative responses appropriate for local contexts. The studies in this volume provide evidence that, while water crises pose serious threats to environments and societies, they also provide opportunities to learn from experience and recraft water governance with coherent visions of more ecologically and socially sustainable futures. This volume was originally published as a special issue of Society & Natural Resources.

Water recycling and low-carbon development (Paperback): Yun-Xiao Chong, Tianyin Huang, Feng-Min Li, Guang Li Liu, Qian-Yuan Wu Water recycling and low-carbon development (Paperback)
Yun-Xiao Chong, Tianyin Huang, Feng-Min Li, Guang Li Liu, Qian-Yuan Wu
R2,544 Discovery Miles 25 440 Ships in 10 - 15 working days

This book deals with various problems and investigates different treatment technologies concerning water reuse. In response to the challenges of severe water shortages and the deterioration of water quality, the focus of cutting-edge technology and systems for water treatment and reuse is fast-growing worldwide. Progress is needed to provide high quality reclaimed water, minimize the risks to the environment and human health, and support the use of non-conventional water resources. In Focus - a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

Handbook of Bioremediation (1993) - Norris * Hinchee * Brown * Mccarty Semprini * Wilson * Kampbell Reinhard * Bouwer * Borden... Handbook of Bioremediation (1993) - Norris * Hinchee * Brown * Mccarty Semprini * Wilson * Kampbell Reinhard * Bouwer * Borden * Vogel Thomas * Ward (Paperback)
Robert D. Norris
R1,146 Discovery Miles 11 460 Ships in 10 - 15 working days

Written by leading soil and ground-water remediation scientists, Handbook of Bioremediation presents information regarding the processes, application, and limitations of using remediation technologies to restore contaminated soil and ground water. It covers field-tested technologies, site characterization requirements for each remediation technology, and the costs associated with their implementation. In addition to discussions and examples of developed technologies, the book provides insights into technologies ranging from theoretical concepts to limited field-scale investigations. In situ remediation systems, air sparging and bioventing, the use of electron acceptors other than oxygen, natural bioremediation, and the introduction of organisms into the subsurface are among the specific topics covered in this invaluable handbook.

Safe Drinking Water - The Impact of Chemicals on a Limited Resource (Paperback): Rip G. Rice Safe Drinking Water - The Impact of Chemicals on a Limited Resource (Paperback)
Rip G. Rice
R1,690 Discovery Miles 16 900 Ships in 10 - 15 working days

A review of the nation's new coverages serves as a ready reminder that drinking water safety is more than regional of local concern. In recent times, the print media alone has drawn attention to barium, bacteria, heavy metals, and increasingly organic contaminants, in public water supplies located in Florida, Rhode Island, Texas, Oregon, Illinois, Minnesota, North Carolina, Michigan, and California, to name a few. In an effort to address one of the major issues confronting the future of the nation's drinking water supplies, chemical contamination, the Drinking Water Research Foundation and the American Chemical Society presented the symposium, "Safe Drinking Water: the Impact of Chemicals on a Limited Resource." To add balance to the total presentation, two papers were included that were not part of the symposium.

Safe Drinking Water Act (1989) - Amendments, Regulations and Standards (Paperback): Edward J. Calabrese Safe Drinking Water Act (1989) - Amendments, Regulations and Standards (Paperback)
Edward J. Calabrese
R1,690 Discovery Miles 16 900 Ships in 10 - 15 working days

This new book covers drinking water regulations such as disinfectant by-products, synthetic organics, inorganic chemicals, microbiological contaminants, volatile organic chemicals, radionuclides, fluoride, toxicological approaches to setting new national drinking water regulations, and trihalomethanes. In addition, organic and inorganic compounds scheduled to be regulated in 1989 and new candidates for the 1990s regulations are detailed.

Every Last Drop - Rainwater harvesting and sustainable technologies in rural China (Hardcover, Uk Ed.): Zhu Qiang, Li Yuanhong,... Every Last Drop - Rainwater harvesting and sustainable technologies in rural China (Hardcover, Uk Ed.)
Zhu Qiang, Li Yuanhong, John Gould
R1,170 Discovery Miles 11 700 Ships in 10 - 15 working days

Over the past two decades a quiet revolution has been taking place in the countryside of China where hundreds of millions of people have been lifted out of poverty. This book focuses on some of the practical actions and clever use of appropriate technologies which have been at the heart of this positive grassroots-driven change in rural Gansu Province. Key to this has been mobilizing the population and their expeditious use of rainwater harvesting both to dramatically improve crop yields and provide households with reliable domestic water supplies. Since Gansu is semi-arid and stored rainwater a scarce resource, ingenious systems of providing crops with just the right amount of supplementary irrigation at critical periods have been developed. Challenges such as lack of fuelwood have been overcome by the development of simple low-cost solar cookers, which by focusing the sun s rays using tiny mirrors can boil a kettle in minutes. These affordable units are now being produced at hundreds of small rural factories. The construction of low-cost greenhouses using plastic sheeting allows for the collection of rainwater and its use in efficient drip irrigation systems. By supplying vegetables and cash crops to local markets farmers have been able to repay their initial investment in under two years. The real significance of this case study is that most of the approaches described are based on universal principles of sustainable development. "Every Last Drop" is recommended reading for engineers, planners, staff of NGOs, academics and students in the water, energy, and agriculture sectors."

Environmental Water Markets and Regulation - A comparative legal approach (Paperback): Katherine Owens Environmental Water Markets and Regulation - A comparative legal approach (Paperback)
Katherine Owens
R1,515 Discovery Miles 15 150 Ships in 10 - 15 working days

River systems around the world are degraded and are being used unsustainably. Meeting this challenge requires the development of flexible regimes that have the potential to meet essential consumptive needs while restoring environmental flows. This book focuses on how water trading frameworks can be repurposed for environmental water recovery and aims to conceptualise the most appropriate role for law in supporting recovery through these frameworks. The author presents a comprehensive study of the legal frameworks in four jurisdictions: the States of Oregon and Colorado in the western United States; the province of Alberta in Canada; and the Murray-Darling Basin in Australia/Basin State of New South Wales. A close comparative analysis of these four jurisdictions reveals a variety of distinctive regulatory arrangements and collaborations between public and private actors. In all cases, the law has been deployed to steer and coordinate these water governance activities. The book argues that each regime is based on a particular regulatory strategy, with different conceptions of the appropriate roles for, and relationships between, various actors and institutions. Legal frameworks do not have the capacity to rationalise and provide an overarching and absolute solution to the complex environmental and governance issues that arise in the context of environmental water transactions. Rather, the role of law in this context needs to be reconceptualised within the paradigm of regulatory capitalism as establishing and maintaining the limits within which regulatory participants can operate, innovate and collaborate.

Water and Wastewater Engineering: Design Principles and Practice, Second Edition (Paperback, 2nd edition): Mackenzie Davis Water and Wastewater Engineering: Design Principles and Practice, Second Edition (Paperback, 2nd edition)
Mackenzie Davis
R2,935 Discovery Miles 29 350 Ships in 10 - 15 working days

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. A thoroughly revised, in-depth guide to water and wastewater engineering This fully updated guide integrates water theory with practical strategies, design techniques, and real-world applications. Designed for both students and professionals, the book covers all aspects of water and wastewater engineering as well as water treatment and facility design. You will get new information on water quality standards, corrosion control, piping materials, and energy efficiency. Water and Wastewater Engineering, Second Edition opens with a review of environmental engineering fundamentals before moving on to cover advanced water treatment processes, including reverse osmosis, membrane filtration, UV disinfection, and biological nutrient removal. A new case study analyzing the water contamination in Flint, MI helps to demonstrate the concepts covered. *Explains the latest technologies, regulations, and climate issues*Contains a brand-new chapter on direct and indirect potable reuse*Written by an experienced environmental engineering educator

Hydrology and Water Resources Management in a Changing World (Paperback): Kolbjorn Engeland, Knut Alfredsen Hydrology and Water Resources Management in a Changing World (Paperback)
Kolbjorn Engeland, Knut Alfredsen
R3,823 Discovery Miles 38 230 Ships in 10 - 15 working days

Hydrology and water resources management in a changing world reflects important challenges for both researchers and practitioners in the public and private sectors. This book features contributions from all sectors on the following themes: water in urban areas; groundwater; floods; climate services; hydrological processes and models; hydropower; water consumption; environmental impact and water quality. In Focus - a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

Environmental Technologies to Treat Rare Earth Element Pollution (Paperback): Arindam Sinharoy, Piet Lens Environmental Technologies to Treat Rare Earth Element Pollution (Paperback)
Arindam Sinharoy, Piet Lens
R3,823 Discovery Miles 38 230 Ships in 10 - 15 working days

The book will cover a wide range of subjects related to rare earth elements, including the sources, detection and applications of rare earths, environmental and ecological issues related to rare earths, recovery of rare earths using physical, chemical and biological methods, recovery of rare earths from waste resources, conversion of rare earths to nano-particles and their applications. It is intended or all levels of teaching and research from senior undergraduate to higher levels and to those who are working on metal/metalloids more particularly focused on rare earth elements from a science, engineering, health and environmental perspective.

The Economic Value of Water Quality (Hardcover): John C. Bergstrom, Kevin J Boyle, Gregory L. Poe The Economic Value of Water Quality (Hardcover)
John C. Bergstrom, Kevin J Boyle, Gregory L. Poe
R3,405 Discovery Miles 34 050 Ships in 10 - 15 working days

The authors of this in-depth study describe the theory and techniques that can be applied to the specific case of valuing potable water provided by groundwater supplies. The theory and techniques can be extended to valuing drinking water provided by surface water supplies, and also to valuing alternative levels of water quality. The theory and case studies discussed in the book suggest that important determinants of the economic value of water quality include: the probability of contamination measured objectively and subjectively, information on actual levels of contamination in household water supplies, socioeconomic characteristics of households, and the extent to which the values of water quality people hold include non-use components. The case study results also suggest that empirical valuation results are sensitive to study design effects such as the particular statistical technique used to estimate mean or median values. These results suggest that estimating water quality values using benefits transfer techniques is problematic, but perhaps feasible with improved data and valuation models. Government agencies, private consulting firms and NGOs involved in water quality policy as well as academic researchers, professors and students will find this volume of theory, application and technique an invaluable reference.

Fate and Transport of Nutrients in Groundwater and Surface Water in an Urban Slum Catchment, Kampala, Uganda (Hardcover):... Fate and Transport of Nutrients in Groundwater and Surface Water in an Urban Slum Catchment, Kampala, Uganda (Hardcover)
Philip Mayanja Nyenje
R3,699 Discovery Miles 36 990 Ships in 10 - 15 working days

Urban informal settlements or slums are growing rapidly in cities in sub-Saharan Africa. Most often, a sewer system is not present and the commonly-used low-cost onsite wastewater handling practices, typically pit latrines, are frequently unplanned, uncontrolled and inefficient. Consequently, most households dispose of their untreated or partially treated wastewater on-site, generating high loads of nutrients to groundwater and streams draining these areas. However, the fate of nutrients in urban slums is generally unknown. In excess, these nutrients can cause eutrophication in downstream water bodies. This book provides an understanding of the hydro-geochemical processes affecting the generation, fate and transport of nutrients (nitrogen and phosphorus) in a typical urban slum area in Kampala, Uganda. The approach used combined experimental and modeling techniques, using a large set of hydrochemical and geochemical data collected from shallow groundwater, drainage channels and precipitation. The results show that both nitrogen-containing acid precipitation and domestic wastewater from slum areas are important sources of nutrients in urban slum catchments. For nutrients leaching to groundwater, pit latrines retained over 80% of the nutrient mass input while the underlying alluvial sandy aquifer was also an effective sink of nutrients where nitrogen was removed by denitrification and anaerobic oxidation and phosphorus by adsorption to calcite. In surface water, nutrient attenuation processes are limited. This study argues that groundwater may not be important as regards to eutrophication implying that management interventions in slum areas should primarily focus on nutrients released into drainage channels. This research is of broad interest as urbanization is an ongoing trend and many developing countries lack proper sanitation systems.

Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability - Sugar Estates and... Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability - Sugar Estates and Community Managed Schemes in Ethiopia (Hardcover)
Zeleke Agide Dejen
R3,697 Discovery Miles 36 970 Ships in 10 - 15 working days

The rate of global increase in water abstraction for irrigation has been declining since the 1970's due to declining potentials for large and medium-scale irrigation developments, and is expected to further decline in the next decades. As such the significant proportion of the expected increase in production would have to be supplied from existing irrigated and /or cultivated lands. This in turn could be achieved by enhancing land and water productivity through improved performance and optimal operation and maintenance. With less than 15% of over 5 million ha irrigation potential harnessed, irrigation devolvement in Ethiopia remained low. Over 70% of the developed irrigation in the country belongs to small-scale irrigation serving smallholder farmers. While accelerated development of new irrigation, particularly of large and medium-scale schemes is relevant in Ethiopia, ensuring the performance and sustainability of existing schemes is also equally important. The existing irrigation schemes in Ethiopia are generally characterized by an overall performance and technical sustainability levels of below expectation. This thesis evaluates the performance of two large-scale (Wonji-Shoa and Metahara) and two community-managed (Golgota and Wedecha) irrigation schemes located in the Awash River Basin of Ethiopia. The study focussed on hydraulic/water delivery performance in the large-scale schemes, and on comparative and internal irrigation service (utility) evaluation in the community-managed schemes. Water delivery performance was evaluated using routine data and hydrodynamic modelling. Farmers' utility was evaluated using qualitative responses of water users. Major performance challenges in each category of schemes were addressed and operational/water management options for improvement were identified.

Hydrological Drought Forecasting in Africa at Different Spatial and Temporal Scales (Hardcover): Patricia M. Trambauer... Hydrological Drought Forecasting in Africa at Different Spatial and Temporal Scales (Hardcover)
Patricia M. Trambauer Arechavaleta
R3,697 Discovery Miles 36 970 Ships in 10 - 15 working days

Africa has been severely affected by droughts in the past, contributing to food insecure conditions in several African countries. In view of the (even more) severe drought conditions and water shortage that may be expected in sub-Saharan Africa in the coming years, efforts should focus on improving drought management by ameliorating resilience and preparedness to drought. This study contributes to the development of a modelling framework for hydrological drought forecasting in sub-Saharan Africa as a step towards an effective early warning system. The proposed hydrological drought forecasting system makes use of a hydrological model that was found to be suitable for drought forecasting in Africa and could represent the most severe past droughts in the Limpopo Basin. The modelling results showed that there is an added value in computing indicators based on the hydrological model for the identification of droughts and their severity. The proposed seasonal forecasting system for the Limpopo Basin was found to be skilful in predicting hydrological droughts during the summer rainy season. The findings showed that the persistence of the initial hydrological conditions contribute to the predictability up to 2 to 4 months, while for longer lead times the predictability of the system is dominated by the meteorological forcing. An effective drought forecasting and warning system will hopefully contribute to important aspects in the region such as water security, food security, hazard management, and risk reduction.

Nested algorithms for optimal reservoir operation and their embedding in a decision support platform (Hardcover): Blagoj... Nested algorithms for optimal reservoir operation and their embedding in a decision support platform (Hardcover)
Blagoj Delipetrev
R4,986 Discovery Miles 49 860 Ships in 10 - 15 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.

Bioreduction of Selenite and Tellurite by Phanerochaete Chrysosporium (Hardcover): Erika Jimena Espinosa-Ortiz Bioreduction of Selenite and Tellurite by Phanerochaete Chrysosporium (Hardcover)
Erika Jimena Espinosa-Ortiz
R5,130 Discovery Miles 51 300 Ships in 10 - 15 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.

Controlling Biofouling in Seawater Reverse Osmosis Membrane Systems (Hardcover): Nirajan Dhakal Controlling Biofouling in Seawater Reverse Osmosis Membrane Systems (Hardcover)
Nirajan Dhakal
R5,138 Discovery Miles 51 380 Ships in 10 - 15 working days

Seawater desalination is a rapidly growing coastal industry that is increasingly threatened by algal blooms. Depending on the severity of algal blooms, desalination systems may be forced to shut down because of clogging and/or poor feed water quality. To maintain stable operation and provide good feed water quality to seawater reverse osmosis (SWRO) systems, ultrafiltration (UF) pre-treatment is proposed. This research focused on assessing the ability of UF and other pre-treatment technologies to reduce biofouling in SWRO systems. An improved method to measure bacterial regrowth potential (BRP) was developed and applied at laboratory, pilot and full scale to assess the ability of conventional UF (150 kDa) and tight UF (10 kDa) alone and in combination with a phosphate adsorbent to reduce regrowth potential and delay the onset of biofouling in SWRO. The improved bacterial regrowth potential method employs a natural consortium of marine bacteria as inoculum and flow cytometry. The limit of detection of the BRP method was lowered to 43,000 +/- 12,000 cells/mL, which is equivalent to 9.3 +/- 2.6 g-Cglucose/L. The reduction in bacterial regrowth potential after tight UF (10 kDa) was 3 to 4 times higher than with conventional UF (150 kDa). It was further reduced after the application of a phosphate adsorbent, independent of pore size of the UF membrane. Pilot studies demonstrated that the application of tight UF (10 kDa) coupled with a phosphate adsorbent consistently lowered the bacterial regrowth potential and no feed channel pressure drop increase was observed in membrane fouling simulators (MFS) over a period of 21 days. The study also showed that non-backwashable fouling of UF membranes varied strongly with the type of algal species and the algal organic matter (AOM) they release. The presence of polysaccharide (stretching -OH) and sugar ester groups (stretching S=O) was the main cause of non-backwashable fouling. In conclusion, this study showed that an improved BRP method is suitable for the assessment of SWRO pre-treatment systems and it can be a useful tool to develop potential strategies to mitigate biofouling and improve the sustainability of SWRO systems.

Water Policy and Governance in South Asia - Empowering Rural Communities (Paperback): M.Anwar Hossen Water Policy and Governance in South Asia - Empowering Rural Communities (Paperback)
M.Anwar Hossen
R1,519 Discovery Miles 15 190 Ships in 10 - 15 working days

Dr. Hossen carried out an exceptional program of research in Bangladesh which focused on water governance in relation to human rights, international water law and environmental sustainability. His major argument is that eco-agricultural system encounters major disruptions due to a number of factors including regional hydropolitics and neoliberal and highly centralized approaches to water resource management that follow the principles of "ecocracy." In this context, Dr. Hossen explores three major questions: (i) How can local ecological knowledge be incorporated into national water policy? (ii) What strategies and reforms are required at the international watershed governance level? and (iii) How can human rights principles, including the principle of water as a human right, be used to formulate more effective water policy and governance principles? To answer these questions, Dr. Hossen explores the effects of regional hydropolitics on water management, focusing on three large engineering projects, the Farakka Barrage built by India on the Ganges River, and the Ganges-Kobodak (GK) and Gorai River Restoration (GRR) Projects in Bangladesh. This analysis is based on his research into local knowledge and farming practices during a year of fieldwork in 2011-12, focus group discussions, in-depth case studies and social survey methods. In addition to this primary data, he looks at extensive secondary documents from the government of Bangladesh pertaining to water management, agricultural modernization and institutional structures. The arguments herein are applicable particularly to the Ganges-Brahmaputra Basin countries in South Asia but also to the river basins of other parts of the world.

Owens Valley Revisited - A Reassessment of the West's First Great Water Transfer (Paperback): Gary D. Libecap Owens Valley Revisited - A Reassessment of the West's First Great Water Transfer (Paperback)
Gary D. Libecap
R1,018 Discovery Miles 10 180 Ships in 10 - 15 working days

In the contemporary West, pressures to more effectively reallocate water to meet growing urban and environmental demands are increasing as environmental awareness grows and climate change threatens existing water supplies.
The legacy of Owens Valley raises concerns about how reallocation can occur. Although it took place over seventy years ago, the water transfer from Owens Valley to Los Angeles still plays an important role in perceptions of how water markets work. The memory of Owens Valley transfer is one of theft and environmental destruction at the hands of Los Angeles. In reassessing the infamous transfer, one could say that there was no "theft." Owens Valley landowners fared well in their land and water sales, earning more than if they had stayed in agriculture. In another sense, however, "theft" did occur. The water was not literally stolen, but there was a sharp imbalance in gains from the trade--with most of the benefits going to Los Angeles. Owens Valley, then, demonstrates the importance of distributional issues in water trades when the stakes are large.
Los Angeles water rights in the Owens Valley and Mono Basin have again been a front-page issue since 1970. New environmental and recreational values and air pollution concerns have ushered in demands to curtail the shipment of water from source regions for urban use.
Owen's Valley Revisited: A Reassesment of the West's First Great Water Transfer carefully explores how these sagas were addressed, considering the costs involved, and alternative approaches that might have resulted in more rapid and less contentious remedies. This analysis offers insights to guide the ongoing conversation about water politics and thefuture thereof.
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