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Books > Professional & Technical > Environmental engineering & technology > Pollution control
Excessive noise levels are generally acknowledged to have adverse effects on our environment. Studies indicate that excessive noise levels can cause fatigue in exposed individuals, lower efficiency and productivity, impaired speech communication, and hearing loss. Excessive noise is almost everywhere today - in the office, in schools, hospitals and other institutional facilities, in all classes of public buildings, and in our factories. INDUSTRIAL NOISE High noise levels in factories can make speech communication in the plant difficult and at times impossible. Foremen are often unable to hear warning shouts from co-workers. The problem of hearing loss due to excessive noise exposure is of particular concern to industry, and to the federal government. In the early 1970s, the United States Congress passed the Occupational Safety and Health Act (OSHA) which sets criteria for health hazards and established limits for noise exposure of industrial workers. The OSHA Noise Standard was amended in 1982 to require audiometric testing of all employees exposed to noise levels of 85 dB or above for eight hours. A NOISE IN COMMERCIAL AND INSTITUTIONAL BUILDINGS While noise levels in offices, stores, schools, and other commercial and institutional buildings seldom reach those encountered in many industrial environments, they often reach levels which are distracting to the occupants of such buildings. Impairment of speech communica tion among workers, or inversely the lack of speech privacy, are both deterrents to effiCiency and productivity and are detrimental to the occupants' comfort and sense of well-being."
Is economic growth good for the environment? A number of economists have claimed that economic growth can benefit the environment, recruiting political support and finance for environmental policy measures. This view has received increasing support since the early 1990s from empirical evidence that has challenged the traditional environmentalist's belief that economic growth degrades the environment. This book reviews the theoretical and empirical literature on growth and the environment, giving an in-depth empirical treatment of the relationship between the two. Various hypotheses are formulated and tested for a number of indicators of environmental pressure. The test results indicate that alternative models and estimation methods should be used, altering previous conclusions about the effect of economic growth on the environment and offering an insight into the forces driving emission reduction in developed countries.
Phytoremediation consists of using plants and their associated microbes for environmental cleanup. Over the past 10 years, this treatment has gained recognition as a cost-effective, non-invasive, alternative or complimentary technology to engineering-based remediation methods. Biofortification, on the other hand, is an agricultural process that increases the uptake and accumulation of mineral nutrients in agricultural products through plant breeding, genetic engineering, or manipulation of agricultural practices. This book shows how, despite having different goals, both
phytoremediation and biofortification technologies can be closely
connected as they are both based on the phytoextraction process
that involves plant uptake, accumulation, and transformation of
nutrient elements from soil. More specifically, this brief offers a
comprehensive introduction to Phytoremediation and Biofortification
of selenium (Se), zinc (Zn), iron (Fe), cadium (Cd) and copper
(Cu), and illustrates the emerging integration of these two
bio-technologies.
The world has witnessed several revolutions since the dawn of industrial revolution some two centuries ago. During the current century itself, three revolutions in the area of communication, information processing and quality have taken place and each time the standard of living of man improved beyond predictions. But during the same period, the world population has also phenomenally increased dwarfing the gains achieved from the development. Increased level of industrial activity to meet the of humanity has caused irreversible damage to the pristine environment that the demand Earth once had. Economic disparity between the haves and havenots has widened, aggravating the situation further more. Ozone layer depletion, warming up of Earth's atmosphere and the pollution created by uncontrolled industrial activity to gain economic strength are now assuming the proportion of a catastrophe that may eventually threaten the survival of life on Earth. Developed countries blame the Third World countries for the uncontrolled emissions through burning of fossil fuels and for wasting precious resources of energy by using inefficient and uneconomical technologies, while the developed countries are equally responsible for avoidable oV, er-consumption and for the wastage of resources and energy and for not sharing the improved and efficient technologies with the developing countries. Thus the wastage by both these set of countries continues unabated. After all, resources of the world are finite and are meant to be shared by all its inhabitants.
Structure-Borne Sound" is a thorough introduction to structural vibrations with emphasis on audio frequencies and the associated radiation of sound. The book presents in-depth discussions of fundamental principles and basic problems, in order to enable the reader to understand and solve his own problems. It includes chapters dealing with measurement and generation of vibrations and sound, various types of structural wave motion, structural damping and its effects, impedances and vibration responses of the important types of structures, as well as with attenuation of vibrations, and sound radiation from structures. For the third edition, the author fundamentally revised and newly organized the contents of the work. Nevertheless, the intention has been to preserve the style of the previous editions, namely to focus on the fundamentals enabling the reader to analyse further problems.
This book presents chemical analyses of our most pressing waste, pollution, and resource problems for the undergraduate or graduate student. The distinctive holistic approach provides both a solid ground in theory, as well as a laboratory manual detailing introductory and advanced experimental applications. The laboratory procedures are presented at microscale conditions, for minimum waste and maximum economy. This work fulfills an urgent need for an introductory text in environmental chemistry combining theory and practice, and is a valuable tool for preparing the next generation of environmental scientists.
This book emphasizes the application of Linear Parameter Varying (LPV) gain scheduling techniques to the control of wind energy conversion systems. This reformulation of the classical problem of gain scheduling allows straightforward design procedure and simple controller implementation. From an overview of basic wind energy conversion, to analysis of common control strategies, to design details for LPV gain-scheduled controllers for both fixed- and variable-pitch, this is a thorough and informative monograph.
Phytoremediation with wetland plants is an eco-friendly, aesthetically pleasing, cost-effective, solar-driven, passive technique that is useful for cleaning up environmental pollutants with low to moderate levels of contamination.
Das Fachbuch Verbrennung vermittelt einen UEberblick uber die Grundlagen von Verbrennungsprozessen und tragt zu einem Verstandnis ihrer Auswirkungen auf praktische Anwendungen bei. In den ersten Kapiteln finden sich die physikalisch-chemischen Grundlagen. Anhand verschiedener laminarer Flammentypen werden die Wechselwirkungen zwischen chemischer Reaktionskinetik, molekularen Transportprozessen und Stroemung beschrieben. Bei der Behandlung turbulenter Verbrennungsprozesse werden aktuelle Verfahren zur Beschreibung der Kopplung zwischen chemischer Reaktion und turbulentem Stroemungsfeld verwendet. Anwendungen sind das Motorklopfen und die Schadstoffbildung. Die dritte Auflage wurde im Hinblick auf die aktuelle Forschung erweitert und aktualisiert.
In this wholly revised second edition, Michael Edelstein draws or iis thiffy years as a community activist tc provide a much-expanded theoretical foundation for understanding the psychosocial impacts of toxic contaminagtion. Informed by social psychological theory and an extensive survey of documented cases of toxic exposure, and enlivened by excerpts drawn from more than one thousand Interviews with victims, Contaminated Communities, Second Edition, presents, a candid portrayal of the toxic victim's experience and the key stages in the course of toxic disaster. The second edition introduces dozens of new cases and provvides expanded considerations of environmental justice, environmental racism, environmental turbulence, and environmental stigma, as well as a fully articulated theory of "lifescape." The new edition moves past the well-charted role of reactive environmentalism to explore issues for a proactivist approach that employs a "third path" of social learning, sustainable innovation, consensus building, and community empowerment.
This corrected version of the landmark 1981 textbook introduces the physical principles and theoretical basis of acoustics with deep mathematical rigor, concentrating on concepts and points of view that have proven useful in applications such as noise control, underwater sound, architectural acoustics, audio engineering, nondestructive testing, remote sensing, and medical ultrasonics. Since its publication, this text has been used as part of numerous acoustics-related courses across the world, and continues to be used widely today. During its writing, the book was fine-tuned according to insights gleaned from a broad range of classroom settings. Its careful design supports students in their pursuit of a firm foundation while allowing flexibility in course structure. The book can easily be used in single-term or full-year graduate courses and includes problems and answers. This rigorous and essential text is a must-have for any practicing or aspiring acoustician.
This book is a compilation of detailed and latest knowledge on the various types of environmental pollutants released from various natural as well as anthropogenic sources, their toxicological effects in environments, humans, animals and plants as well as various bioremediation approaches for their safe disposal into the environments. In this book, an extensive focus has been made on the various types of environmental pollutants discharged from various sources, their toxicological effects in environments, humans, animals and plants as well as their biodegradation and bioremediation approaches for environmental cleanup.
Das vollig neubearbeitete Gesamtwerk Rietschel Raumklimatechnik" ist die Fortfuhrung des erstmal 1893 erschienenen RIETSCHEL Leitfaden zum Berechnen und Entwerfen von Luftungs- und Heizungsanlagen." Die von Grund auf veranderte Struktur mit Erweiterung und Vertiefung der Grundlagen und einer verstarkten Ausrichtung auf eine integrierte Behandlung des Gebaudes und seiner klimatechnischen Anlagen sind wichtiges Merkmal der 16. Auflage. Band 2 behandelt Aufgaben der Klimatisierung und Raumlufttechnik. Einheitliche Ansatze zur Abfuhrung aller Arten von Raumlasten ermoglichen Gesamtkonzepte, auch hinsichtlich des optimalen Energieeinsatz. Moderne Verfahren zur energetischen Bewertung, die Optimierung der Anlagen und die Energieverbrauchsermittlung werden in der Theorie erlautert und praktisch mit Beispielen dargestellt. Die Bauteile raumluft- und raumkuhltechnischer Anlagen werden erklart und deren Bemessung beschrieben."
Contaminated land contains particular hazards that require the employment of specialist geoenvironmental services with appropriately trained and experienced office and site personnel, suitable plant and equipment, and high levels of supervision and response. An addition to the Site Investigation in Construction series, this book promotes the use of safe working practices and improves awareness of health & safety. This new edition is up-to-date with the many advances and regulatory changes affecting ground investigation, particularly in respect of contaminated ground, dealing with waste materials and different investigatory techniques, since the publication of the first edition. Guidance for Safe Investigation of Potentially Contaminated Land provides guidance for Employers and their agents, Contractors, Engineers, site operatives and other staff.
The book contains the contributions at the NATO Study Institute on Exposure and Risk Assessment of Chemical Pollution - Contemporary Methodology, which took place in Sofia - Borovetz, Bulgaria, July 1-10, 2008. Rapid advances in mathematics, computer science and molecular biology and chemistry have lead to the development in of a new branch of toxicology called Computational Toxicology. This emerging field is addressing the estimation and prediction of exposure risk and effects of chemicals based on experimental data, measured concentration and biological mechanisms and computational models of biological systems. Mathematical models are also being used to predict the fate and transport of substances in the environment. Because this area is still in its infancy, there has been limited application from governmental agencies to regulating controllable processes, such as registration of new chemicals, determination of estimated exposure and risk based limits and maximum acceptable concentrations in different compartments of the environment - ambient air, waters, soil and food products. However, this is soon to change as the ability to collect, analyze and interpret the required information is becoming increasingly more efficient and cost effective. Full implementation of the new processes have to involve education on both part of the experimentalists who are generating the data and the models, and the risk assessors who will use them to better protect human health and the environment.
One of the crucial challenges in the energy sector is the efficient capture and utilisation of CO2 generated from fossil fuels. Carbon capture and storage technologies can provide viable alternatives for energy intensive processes, although implementation of large-scale demonstrators remains challenging. Therefore, innovative technologies are needed that are capable of processing CO2 emission from a wide range of sources, ideally without additional fossil energy demand (e.g. solar driven or overcoming the limits of photosynthesis). This book covers the most recent developments in the field of electrochemical reduction of CO2, from first-principle mechanistic studies to technological perspectives. An introduction to basic concepts in electrochemistry and electrocatalysis is included to provide a background for newcomers to this field. This book provides a comprehensive overview for researchers and industrial chemists working in environmental science, electrochemistry and chemical engineering.
The steady growth in the number of vehicles on the road, heavy reliance on coal, use of dirty fuels for residential combustion, and extensive open burning are some of the major factors leading to the progressive deterioration of air quality in developing countries in Asia. And despite efforts to establish and implement air quality measurement systems, the development of infrastructure, environmental technology, and management practices continues to lag behind the rate of emission increase. Based on ten years of coordinated research, Integrated Air Quality Management: Asian Case Studies discusses technical and policy tools for the integrated air quality management of developing countries in Asia. The book begins with an overview of major issues of air quality management practices in developing Asia and potential approaches to reduce pollution, including opportunities for integration of air quality improvement and climate migration strategies. It covers the methodology and results of fine particulate matter monitoring using traditional filter-based and satellite monitoring techniques. It examines the applications of a 3D dispersion modeling tool for urban and regional air quality management focusing on surface ozone, fine particulate matter, and acid deposition. The final chapters discuss innovative control technologies for gaseous air pollutants and illustrate the integrated air quality management in developing Asia through case studies for target source categories including agricultural residue field burning, vehicle emissions, brick kilns, and industrial VOC emission. Illustrated with case studies, this book presents an integrated air quality management methodology that employs technical and policy tools to achieve air quality goals. It includes technical information and policy recommendations based on the outcomes of several multi-year air quality research programs coordinated by the Asian Institute of Technology. The text combines fundamental information and advanced knowledge useful to large audiences dealing with subjects of integrated air quality management.
As the need to control process emissions has increased, so have the number of FGD treatment and control strategies. The effectiveness of these treatments vary greatly, depending the types and levels of the materials, as well as the size of the facility. Profiles in Flue Gas Desulfurization will help engineers and managers identify the technologies that best fit their plant and/or processes. It's a quick and easy reference to all "tail-end" SO2 control processes currently in commercial use or "on the brink," providing an effective "snapshot" of where this technology stands in industry today. The technologies are divided into waste producing processes, where the end product is a "clean waste," and byproduct processes, where the end product has market value. Each technology profile includes a schematic depicting its major equipment components and arrangement, laid out side-by-side with descriptive text on how the process works, where and how it is currently being utilized, its operational requirements, advantages and limitations for typical applications, and a brief list of principal suppliers.
Membrane technology has received great popularity in many industrial sectors and significantly enhanced our abilities to restructure production processes, protect the environment and public health, and provide competitive strategies for separation and purification. However, the need for sustainable development has imposed new targets for this technology, such as more effective/precise separation and stricter admissible limits for the discharge of contaminants into the environment. Focusing on hot topic environment-related applications, Advances in Functional Separation Membranes introduces emerging membranes nanoengineered with attractive functions and discusses their key features. It also provides a comprehensive guide to various design strategies for such functional membranes, making it useful reference for environmental chemists and membrane engineers alike.
Plastic plays a vital role in today's world but has become increasingly problematic. Plastics and Microplastics: A Reference Handbook discusses the history and evolution of plastic and its many uses, both in the United States and around the world. Beginning with a history of plastic-from the first scientific discovery of the material to its diversity of forms and uses in the present day-Plastics and Microplastics: A Reference Handbook discusses the history and evolution of plastic and its many uses, both in the United States and around the world. Importantly, it delves into the problems and controversies concerning plastic and microplastics, such as the pollution of oceans, rivers, and streams; its exceptionally long shelf life; its contribution to air pollution; and ingestion of microplastics by marine life. One of the most valuable aspects of the book is its survey of the history of plastics and microplastics conducted in a manner that helps readers to identify key issues to address. Moreover, it discusses both implemented and proposed solutions. A perspectives chapter includes a broad range of voices, allowing crucial, diverse perspectives to round out the author's expertise. Provides readers with the basic background they need about plastics and microplastics in order to understand current problems Includes additional readings, a comprehensive chronology, a glossary, and other features to aid students' understanding of current issues and guide them in designing and conducting their own research Offers ideas for additional research from a list of important individuals and organizations Rounds out the author's expertise in perspectives essays that show readers a diversity of viewpoints
This book focuses on modelling issues and their implications for the correct design of reactive absorption-desorption systems. In addition, it addresses the case of carbon dioxide (CO2) post-combustion capture in detail. The book proposes a new perspective on these systems, and provides technological solutions with comparisons to previous treatments of the subject. The model that is proposed is subsequently validated using experimental data. In addition, the book features graphs to guide readers with immediate visualizations of the benefits of the methodology proposed. It shows a systematic procedure for the steady-state model-based design of a CO2 post-combustion capture plant that employs reactive absorption-stripping, using monoethanolamine as the solvent. It also discusses the minimization of energy consumption, both through the modification of the plant flowsheet and the set-up of the operating parameters. The book offers a unique source of information for researchers and practitioners alike, as it also includes an economic analysis of the complete plant. Further, it will be of interest to all academics and students whose work involves reactive absorption-stripping design and the modelling of reactive absorption-stripping systems.
What light does nearly twenty-five years of scientific study of the Exxon Valdez oil spill shed on the fate and effects of a spill? How can the results help in assessing future spills? How can ecological risks be assessed and quantified? In this, the first book on the effects of Exxon Valdez in fifteen years, scientists directly involved in studying the spill provide a comprehensive perspective on, and synthesis of, scientific information on long-term spill effects. The coverage is multidisciplinary, with chapters discussing a range of issues including effects on biota, successes and failures of post-spill studies and techniques, and areas of continued disagreement. An even-handed and critical examination of more than two decades of scientific study, this is an invaluable guide for studying future oil spills and, more broadly, for unraveling the consequences of any large environmental disruption. For access to a full bibliography of related publications, follow the resources link at www.cambridge.org/9781107027176.
Este libro pone a disposicion del lector de habla hispana un tratamiento distinto y original de los temas fundamentales de la Ingenieria Acustica. El libro contiene los fundamentos cientificos de las tecnicas utilizadas para lograr un ambiente acustico menos contaminado. La mayoria de los capitulos consideran, directa o indirectamente, el problema de como reducir los niveles de ruido. Se ha puesto especial atencion en los principios fundamentales y en la comprension de los fenomenos fisicos involucrados en las distintas problematicas de la Ingenieria Acustica. El texto esta orientado tanto a estudiantes y docentes de nivel universitario, como a ingenieros de distintas especialidades interesados en este importante tema.
Das vorliegende Buch wertet Erfahrungen mit der Stoffstromanalyse in der Praxis aus und entwickelt auf dieser Grundlage eine Handlungsorientierung fur den Einstieg in ein effizientes Oko-Controlling: Der Praktiker findet hier einen vorgehensorientierten Leitfaden, ein Referenzmodell fur die Stoffstromanalyse in Handelsunternehmen, Anleitung zur angemessenen Softwareunterstutzung sowie Hinweise zur Integration in die Unternehmensstrategie (z.B. Oko-Audits). Zusatzlich werden die theoretischen Grundlagen des Stoffstrommanagements und seine Entwicklungsformen im Rahmen der Okobilanzierung erlautert. |
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