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Books > Professional & Technical > Environmental engineering & technology > Sanitary & municipal engineering > Water supply & treatment > General
The objective of this book is to summarize and critically assess the current status, development trends and needs of three basic defensive elements that safeguard the quality and environmental safety of soil and water/sediments: early warning monitoring, protection and remediation measures, with particular regard to the viability of methods and technologies, i.e. easiness-to-use, reliability, cost-effectiveness, high efficiency and non-destructive character of remediation that is of particular importance considering the scale of application. The priority aim of the book is to contribute to the improving maintenance of ecosystems, and specifically to summarize and add to information on how best to protect our soils and aquifers, prevent migration and mobilization of pollutants and how to enhance their degradation and/or immobilization. Mechanism of action is considered of the first priority, but optimization of technical construction/application details are of no lesser importance. In the permeable reactive barriers, and other preventive/remediation measures, a number of novel integrated physicochemical and biochemical methods are presented. The remediation solutions for soil pollution are focused on non-destructive methods such as phyto- and ecoremediation that would preserve soil properties during and after decontamination. The contributors to the book are internationally recognized experts, which present both state-of-the art and novel approaches in the above fields that makes the book unique with respect to the scope.
Although microorganisms can be found virtually anywhere on our planet, from clouds to soils to oceans, they are often poorly understood when examining issues related to groundwater and water wells. Focusing on the impact of microorganisms on groundwater and water wells, Practical Manual of Groundwater Microbiology, Second Edition presents over 75% new material to offer a comprehensive, up-to-date guide on the subject. The first eight chapters provide an overview of microbiology and its importance in groundwaters, exploring natural filters that develop around wells, various bacteria, molds, viruses, sampling procedures, biofouling, biofilms, sequestration strategies, rehabilitation/regeneration practices, and flooding risks. The book also contains a chapter that functions as a self-contained guide, with 79 descriptive illustrations of important concepts integral to the understanding of microbes in groundwater. Numerous appendices, some new to this edition, supply detailed information on more specialized topics, such as microbiological test methods, water sample protocols, regulatory considerations concerning the use of phosphorus in wells, and the application of vegetable oil to lubricate pumps. Chronicling the significant progress made in the field since the publication of its predecessor, this edition provides practical approaches for evaluating the effects of microorganisms and their activities on groundwater and water wells.
There is growing acceptance that the progress delivered under the Millennium Development Goal target for drinking water and sanitation has been inequitable. As a result, the progressive reduction of inequalities is now an explicit focus of the Sustainable Development Goal (SDG) targets, adopted in 2015, for universal access to drinking water, sanitation and hygiene (WASH). This shift in focus has implications for the way in which the next generation of WASH policies and programmes will be conceived, designed, financed and monitored. This book provides an authoritative textbook for students, as well as a point of reference for policy-makers and practitioners interested in reducing inequalities in access to WASH services. Four key areas are addressed: background to the human right to water and development goals; dimensions of inequality; case studies in delivering water and sanitation equitably; and monitoring progress in reducing inequality.
Urban population growth dramatically alters material and energy fluxes in the affected areas, with concomitant changes in landscape, altered fluxes of water, sediment, chemicals and pathogens and increased releases of waste heat. These changes then impact on urban ecosystems, including water resources and result in their degradation. Such circumstances make the provision of water services to urban populations even more challenging. Changing weather patterns, rising temperature and large variations in precipitation contr- ute to increased damages, caused by weather related disasters, including floods. Ones of the major contributors to increasing flood peaks are land use changes and particularl- urban development. Consequently, there is a need to look for low environmental impact land development and to manage runoff in urban areas by storm water management. Much progress in the management of urban waters has been achieved in the most - vanced jurisdictions, but much more remains to be done. In this respect the EC Water Framework Directive can provide some guidance. Urban water management issues are particularly important in the countries in transition in Central and Eastern Europe. During the last decade political, economical and social changes in the countries under transition have influenced almost every element of the public sector, including water services. There is an urgent need for exchange of information among various countries on this issue and for identification of best approaches to achieving this transition.
As urban areas keep growing, water infrastructure ages, and the requirements on environmental protection become more rigorous, there is a continual need for upgrading water pollution control facilities and restoring degraded urban waters. Such issues are addressed in this book by focusing on five major topics: (a) Upgrading stormwater management facilities, (b) Retrofitting / upgrading combined sewer overflow (CSO) facilities, (c) Optimising/upgrading sewage treatment plant performance, (d) Urban stream restoration, and (e) Challenges in restoring urban environment. Each chapter contains some overview papers followed by research or case study papers. Besides presentations of new approaches and accomplishments in the field of upgrading and restoration, several papers provide analysis of vast needs in this field in several countries of Central and Eastern Europe, which either recently joined the European Union (EU) or are preparing for accession, and need to comply with the existing EU directives dealing with environmental protection. As such, this book will be of primary interest to researchers and university lecturers dealing with environmental upgrading and restoration, environmental planners from all levels of government, municipal engineers and politicians, and finally the private industry representatives (consultants, private utilities and environmental technology suppliers) searching for new business opportunities among the new or aspiring members of EU.
This book documents state of the art research designed to compliment the advances being made in the global water quality sector. Book 2 provides further detail on supporting programmes.
Slow sand filtration is credited with being the first drinking water treatment process utilised to improve the quality of water in both modern Europe and the USA. Within the last 10 years, there has been a renaissance of interest in the potential use of enhanced processes of slow sand filtration throughout the world, especially for small and rural communities, and it continues to be the primary treatment process for many major European cities. The book deals with the latest research developments in slow sand and alternative biological filtration processes for drinking water treatment, including advances in the understanding of the fundamental mechanisms of the processes. In addition, progress in the techniques of operation and upgrading of the processes are described, with case studies from around the world. The principal themes of the book are: General overview; Removal of Natural Organic Matter (NOM), Biodegradable Organic Carbon (BOC) and Ozonation by-products; Biofilter media characteristics; Influence of process design variables and modifications; Modelling process performance; Pre-treatment applications; Operational experience and cleaning; and Upgrading treatment processes. The book also has an international perspective with case-studies from around the world.
Global awareness of the importance of monitoring and protecting our environment has grown considerably over the last ten years. Environmental concerns are now an integral part of today's legislation, product design and development, waste minimization and disposal. As well as background monitoring of the environment, scientists are involved in monitoring liquid and gaseous discharges and surveying contaminated land and landfill sites - very topical issues due to concern over waste dumping and potential problems with reuse of old industrial sites. As well as covering long-established methods, this book includes the breadth of new developments which have taken place in the field of environmental analysis. New techniques have emerged which have now become acceptable as alternatives to more long-standing methods. There is also more use of automated techniques. Quality assurance and quality control aspects have become increasingly important for the environmental analyst with a growing emphasis on accurate quantification. The techniques discussed develop in complexity from simple volumetric measurements for water quality to the special problems of ultra-trace analysis. As well as covering all of the laboratory techniques used in extraction and analysis of samples, attention is also given to in situ monitoring and sampling strategies. Key features include the following:
Life Cycle Assessment of Wastewater Treatment addresses in detail the required in-depth life cycle assessment of wastewater treatment. This is to meet the special demands placed upon wastewater treatment processes, due to both the limited quantity and often low quality of water supplies. Wastewater management clearly plays a central role in achieving future water security in a world where water stress is expected to increase. Life cycle assessment (LCA) can be used as a tool to evaluate the environmental impacts associated with wastewater treatment and potential improvement options. This unique volume will focus on the analysis of wastewater treatment plants (WWTPs), using a life cycle assessment (LCA) approach. Key Features: Focuses on the analysis of wastewater treatment plants using a life cycle assessment (LCA) approach Discusses unconventional water sources such as recycled wastewater, brackish groundwater and desalinated seawater Explains life cycle assessment in detail, which has become one of the reference methods used to assess the environmental performance of processes over their complete life cycle, from raw material extraction, infrastructure construction and operation to final dismantling Explores a technique (LCA) that is becoming increasingly popular amongst researchers in the water treatment field nowadays because of its holistic approach Based on the real life experiences, the subject of wastewater is presented in simple terms and made accessible to anyone willing to learn and experiment
State-of-the-art GIS spatial data management and analysis tools are revolutionizing the field of water resource engineering. Familiarity with these technologies is now a prerequisite for success in engineers' and planners' efforts to create a reliable infrastructure. GIS in Water Resource Engineering presents a review of the concepts and applications of GIS in the various sub-fields of water resource engineering. After a summary review of analyses and database functions, the book addresses concepts and applications in the following areas: Surface Water Hydrology Groundwater Hydrology Water Supply and Irrigation systems Wastewater and Stormwater Systems Floodplain Management Water Quality Water Resource Monitoring and Forecasting River Basin Planning and Management The book develops a general understanding of the nature of GIS and how it is used to create and analyze geographic data. The author first introduces primary field data collection methods and describes procedures for interpretation and analysis. The second portion of the book focuses on the linkage of GIS data with water resource analysis and management models. Applications are presented with descriptions of GIS database development, analysis background theory, and model integration with GIS. The profound impact of GIS systems on water resources engineering continues to grow. GIS in Water Resource Engineering arms engineers and planners with an arsenal of tools to assist in the creation of a reliable, environmentally sensitive, infrastructure.
Over the past decade there have been extraordinary advances towards drought risk reduction with the development of new water-conserving technologies, and new tools for planning, vulnerability and impact assessment, mitigation, and policy. Drought and Water Crises: Integrating Science, Management, and Policy, Second Edition comprehensively captures this evolving progress as it discusses drought management in the light of present risks, global climate change and public policy actions. This new edition emphasizes the paradigm shift from managing disasters to managing risk, reflecting the global emphasis that has evolved in recent years, a new focus that shines light on preparedness strategies and the tools and methods that are essential in drought risk reduction. The book provides additional relevant case studies that integrate this new approach and discusses examples applied in both developed and developing countries.
Affordable and effective domestic wastewater treatment is a critical issue in public health and disease prevention around the world, particularly so in developing countries which often lack the financial and technical resources necessary for proper treatment facilities. This practical guide provides state-of-the-art coverage of methods for domestic wastewater treatment and provides a foundation to the practical design of wastewater treatment and re-use systems. The emphasis is on low-cost, low-energy, low-maintenance, high-performance 'natural' systems that contribute to environmental sustainability by producing effluents that can be safely and profitably used in agriculture for crop irrigation and/or in aquaculture, for fish and aquatic vegetable pond fertilization. Modern design methodologies, with worked design examples, are described for waste stabilization ponds, wastewater storage and treatment reservoirs; constructed wetlands, upflow anaerobic sludge blanket reactors, biofilters, aerated lagoons and oxidation ditches. This book is essential reading for engineers, academics and upper-level and graduate students in engineering, wastewater management and public health, and others interested in sustainable and cost-effective technologies for reducing wastewater-related diseases and environmental damage.
Storage reservoirs represent one of the most effective tools for eliminating, or at least for minimizing, discrepancies in the time and space variations of water resources distribution and requirements. In fact, the different - often contradictory - and increasing demands on water resources utilization and control usually can be fulfilled only by building multi-purpose reservoir systems. In this way, the available water resources can be exploited and/or managed in a more rational way. Typically, the construction of a dam across a river valley causes water to accumulate in a reservoir behind the dam; the volume of water accumulated in the reservoir will depend, in part, on the dimensions of the dam. The size of the dam will normally affect the capital expenditure in a very significant way. Indeed the construction of large water resource control systems - such as dams - generally involves rather huge manpower and material outlays. Consequently, the elaboration of effectual methods of approach that can be used in establishing the optimal reservoir parameters is of great practical significance. For instance, in the design and operation oflarge multi-reservoir systems, simple simulation and/or optimization models that can identify potentially cost effective and efficient system design are highly desirable. But it should be recognized that the problem of finding optimal capacities for multi-reservoir systems often becomes computationally complex because of the large number of feasible configurations that usually need to be analyzed."
Nowhere is the conflict between economic progress and environmental quality more apparent than in the mineral extraction industries. The latter half of the 20th century saw major advances in the reclamation technologies. However, mine water pollution problems have not been addressed. In many cases, polluted mine water long outlives the life of the mining operation. As the true cost of long-term water treatment responsibilities has become apparent, interest has grown in the technologies that would decrease the production of contaminated water and make its treatment less costly. This is the first book to address the mine water issue head-on. The authors explain the complexities of mine water pollution by reviewing the hydrogeological context of its formation, and provide an up-to-date presentation of prevention and treatment technologies. The book will be a valuable reference for all professionals who encounter polluted mine water on a regular or occasional basis.
Das Buch mit zahlreichen Praxisbeispielen befasst sich mit allen wesentlichen Fragen, die f r die Auslegung von Packungskolonnen bei der Rektifikation, Absorption und Strippung (Desorption) unter Vakuum, im Normal- und Druckbereich bis 100 bar, in der Abluft- und Abwassertechnik von Bedeutung sind. Es wird ein einheitliches, f r beliebige Einbauten geltendes Modell vorgestellt, mit dem die Flutpunktgeschwindigkeit, der Fl ssigkeitsinhalt und der Druckverlust im gesamten Belastungsbereich f r regellose F llk rper, geordnete F llk rperschichten, f r Rohrkolonnen und f r strukturierte Packungen mit unterschiedlicher Neigung der Str mungskan le vorausberechnet werden kann. Des Weiteren werden Berechnungsunterlagen f r ca. 200 F llk rper und Packungen zusammengestellt. Die zahlreichen Rechenbeispiele - insbesondere f r strukturierte Packungen - erleichtern die Anwendung der abgeleiteten Beziehungen.
The history of chemistry and pharmaceutical sciences is an impressive success story. The products of chemical and pharmaceutical industries are present eve- where in our everyday life. They help to pursue the modern way of living and they contribute to our high standard of living and safety, mobility, communication te- nologies, food, health, textiles and drinking water treatment, among many others. These products are labeled under the categories: pharmaceuticals, pesticides, det- gents, fertilizers, dyes, paints, preservatives, food additives and personal care pr- ucts, to name a few. Within these categories, groups of chemicals with similar structures can be found. However, often groups of chemicals with very different structures belong to the same category. For a long time the production of chemicals and pharmaceuticals, their usage and application was connected with the heavy pollution of the environment and serious health effects. At the end of the last century, it was realised that the products of che- cal and pharmaceutical industries are presenting a new type of environmental pol- tion that may also pose a health risk to the consumer. Most chemicals are used in so-called open applications in excessive amounts e. g. for personal care, hygiene, plant protection, health and in textiles. In many cases such as scents, detergents, textile chemicals, surface disinfectants, pesticides and others it is unavoidable that these chemicals are released into the environment according to their intended use.
Organotin compounds, used as antifouling biocides since 1960, are chemical compounds that act as endocrine disrupters. It is not known how organotin compounds cause hormone disturbance, however, and many questions remain about their effect on aquatic organisms. Studies on organotin compounds have recently evolved, with many new findings reported. Following a worldwide ban on organotin compounds in 2008, alternative compounds will mainly be used, with the potential for coastal areas to become contaminated, causing, among other effects, cholinesterase inhibition in aquatic organisms. Use of alternative compounds must be controlled to avoid such errors. These and other findings are described and concisely summarized in this book, providing a useful reference in countries where alternative biocides are being considered. Included are studies on the effects on marine organisms, making this book an excellent aid to experts in environmental chemistry, to government organizations, and to students.
Sustainable Water Engineering introduces the latest thinking from academic, stakeholder and practitioner perspectives who address challenges around flooding, water quality issues, water supply, environmental quality and the future for sustainable water engineering. In addition, the book addresses historical legacies, strategies at multiple scales, governance and policy.
This volume discusses contemporary techniques, technologies, and solutions for industrial wastewater remediation and treatment. It covers biological, chemical, and physical aspects of wastewater treatment, with a background on the generation of wastewater associated with different industries, as well as a comparison of traditional treatment technologies with new advancements. The authors also describe the reuse and recovery of nutrients and precious metals from wastewater, and how such sustainable strategies can be incorporated into industrial wastewater planning and legislation. The book also contains practical and theoretical aspects of various industries and their wastewater management practices in a changing climate, with an emphasis on recent research examining the environmental impact of wastewater. The work will be of interest to students, teachers, and researchers studying wastewater pollution and remediation, wastewater management-based NGOs, and people involved in the planning and legislation of industrial operations.
Addressing the techno-socio-economic challenges involved in the
protection, conservation, recycling and equitable utilization of
water as an economic good, this text explores the linkages and
dynamics of interactions involving water, and includes the
following key topic areas: dynamics of interactions involving
water; water quality; augmentation and conservation of water
resources; wastewater reuse systems; use of water in agriculture;
industrial and municipal uses of water; water pollution; economics
and management of water supplies; etiology of water-related
diseases; climate change impacts on water resources and paradigms
of water resource management.
Stoerungen im Betrieb der Klaranlagen zu erkennen und beseitigen zu koennen - das ist das Ziel dieser Veroeffentlichung. Anhand sehr guter, uberwiegend vierfarbiger Abbildungen werden Erscheinungsformen fadiger Bakterien erkennbar, die notwendigen mikroskopischen Untersuchungen werden durch ein vereinfachtes Bestimmungsschema erleichtert und angeleitet. Ausfuhrliche Praxisbeispiele erlautern die Zusammenhange und geben Hilfestellung und Ansatzpunkte bei Problemen. Dieses Handbuch gehoert auf den Arbeitsplatz des Betriebsleiters von Klaranlagen.
Water Conservation and Wastewater Treatment in BRICS Nations: Technologies, Challenges, Strategies, and Policies addresses issues of water resources-including combined sewer system overflows-assessing effects on water quality standards and protecting surface and sub-surface potable water from the intrusion of saline water due to sea level rise. The book's chapters incorporate both policies and practical aspects and serve as baseline information for future adaption plans in BRICS nations. Users will find detailed important information that is ideal for policymakers, water management specialists, BRICS nation undergraduate or university students, teachers and researchers. |
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