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Books > Earth & environment > The environment > Waste management > General
During 1978-1982 the International Institute for Applied Systems Analysis (IIASA) was responsible for a research project on Environmental Quality Control and Management. The project was begun under the direction of Professor O. F. Vasiliev (from the Institute of Hydrodynamics of the Siberian Branch of the USSR Academy of Sciences) and was subsequently led by myself. This review is very much a re'fiection of that IIASA project. The major themes of the IIASA project were: (i) research into the methodological aspects of modeling river and lake sys tems [some of the principal results of this research appear in M. B. Beck and G. van Straten (eds. ) (1983), Uncertainty and Forecasting of Water Quality (Springer, Berlin (West)), and in K. Fedra (1983), Environmental Modeling Under Uncertainty: Monte Carlo Simulation (IIASA Research Report RR-83-28)]; (ii) case studies in the application of mathematical models to lake eutrophi cation control [results of which are summarized in L. Somlyody, S. Hero dek, and J. Fischer (eds. ) (1983), Eutrophication of Shallow Lakes: Model ing and Management (The Lake Balaton Case Study) (IIASA Collaborative Proceedings CP-83-S3), and in K. Fedra (1983), A Modular Approach to Comprehensive System Simulation: A Case Study of Lakes and Watersheds (in W. K. Lauenroth, G. V. Skogerboe, and M. Flug (eds. ), Analysis of Ecological Systems: State-of-the-Art in Ecological Modelling, pp. 195-204. Elsevier, Amsterdam)]; iv (iii) a policy study of operational water qua,lity management [M. B. Beck (1981), Operational Water Quality Management: Beyond Planning and Design (IIASA Executive Report ER-7)].
The use of catalytic converters for the purification of automotive exhaust gases is a relatively new technology which was brought into existence by social pressures for the preservation of acceptable environmental conditions. The majority of catalytic practitioners have been able to watch the growth of this technology from its inception to its current state of sophistication. Automotive catalytic converter technology is now in a mature state, and this chapter from Vol. 5 Catalysis: Science and Technology by Dr. K. C. Taylor provides a review which covers both the process chemistry and the most important converter design factors. Contents 1. Introduction. . . . . . . . . . . . . . 2. Emission Regulations in the United States. 3. Exhaust Emission Characteristics. . 3 4. 1981 Emission Control Technology. 5 A. Converters. . . 5 B. Control System. 7 8 ~. Catalyst Screening . 6. Laboratory Testing. .10 7. The Chemical Reactions 13 8. Composition of Three-Way Catalysts. 16 A. Rhodium 17 21 B. Platinum. C. Palladium 22 D. Iridium . 22 23 E. Ruthenium and Nickel. F. Cerium Oxide ..... 23 G. Search for Alternatives to Nohle Metals 24 9. Catalyst Supports . 25 A. Pellets .... 26 B. Monoliths . . 26 10. The Transient Behavior of Three-Way Catalysts 27 II. Deterioration of Three-Way Catalysts. 35 A. Thermal Effects. . . . 35 B. Phosphorus Poisoning. . . 37 C. Lead Poisoning. . . . . . * 38 D. Catalyst Poisoning by Sulfur * 40 12. The 0.4 NO,; Research Objective. * 41 13. Control of Diesel Particulate Emissions.
Constructed Wetlands (CWs) are among the few natural treatment systems that can guarantee an efficient wastewater treatment and an appealing green space at the same time. However, they require large areas for their construction, which is not available in many cases. In this thesis, two domestic wastewater treatment options were designed and studied with the purpose of having a low space requirement: the Duplex-CW and the Constructed Wetoof (CWR). The Duplex-CW is a hybrid CW composed of a vertical flow CW on top of a horizontal flow filter. The stacked arrangement is the key for reducing the CW footprint. The CWR is a shallow HF CW placed on the roof of a building, thus it does not occupy any land. Several modifications and improvements have been tested, in addition to the study of the treatment performance, in order to select the most appropriate Duplex-CW and CWR design. Overall, this thesis contributes to the development of two efficient domestic wastewater treatment technologies. The Duplex-CW area requirement is still higher than many CWs and therefore further improvements are necessary. The CWR is the foremost option to save land areas since it requires 0 m2 of land per person equivalent.
The enormous public interest of specialists as well as of engaged and concerned citizens in the energy problem can be understood in view of the fact that the future of national and world-wide economy depends on the availability of sufficient primary energy. The questions arising are: which forms of primary energy exist principally? by what means and at what cost can they be brought to useful application? and what is their possible role in the present and future energy scenario? Another reason which may not be so obvious, but which eventually may prove to be of great importance as far as public acceptance of energy technologies is con cerned, lies in the fact that the existing conscious or subconscious fears arising from confrontation with scientific and technological progress - to which even for the educated layman intellectual access is diffi cult - have been sublimated onto the energy problem and especially onto the problem of nuclear energy. Un like other developments, the emergence of nuclear ener gy has brought to our notice the ambivalence of ad vancing science and technology, which may either be used peacefully or misused militarily. Nuclear energy can help to overcome the increasing hunger for energy in the world, but it can also lead to the extinction of human life from the surface of this plant. More and more, mankind is confronted with chances and risks of new discoveries.
Dieses Handbuch besteht aus insgesamt sieben Einzelb nden, die folgende Themen behandeln: Geofernerkundung, Geophysik, Str mungs- und Transportmodellierung, Geophysik, Geotechnik Hydrogeologie, Tonmineralogie und Bodenphysik, Geochemie sowie Handlungsempfehlungen. Als Grundlage diente den 37 beteiligten Forschungseinrichtungen und Firmen die Analyse von 28 Einzelvorhaben. Dabei wurden an ausgew hlten Teststandorten neue und bereits erprobte Verfahren gegen bergestellt, um so eine Auswahl der effektivsten und kosteng nstigsten Methodenkombinationen zu erhalten. Von der Bundesanstalt f r Geowissenschaften und Rohstoffe berufene Wissenschaftler stellten aus den hierbei gewonnenen Erkenntnissen das vorliegende Werk, unter entsprechender Ber cksichtigung der wissenschaftlichen Grundlagen und Hintergrundinformationen, zusammen.
As society becomes stressed by economic and population pressures, in turn, nature's renewable resources become stressed by harvesting pressures. For our own survival and euphoria, it is paramount that such resources remain as their name implies and not be driven to extinction through short term programs of over exploitation. Consideration of the harvesting of renewable resources leads to a simple question that was the theme of the workshop and is the focus of these proceedings: SUPPoRe you are assigned the role of manager for a specific renewable resource eco system. How would you decide on harvesting policies so that the system can be exploited economically yet at the same time maintain the integrity of the system? This, of course, is a loaded question. First of all, it is not clear that there is ever anyone single decision maker who is able to set the rules for all of the harvesters in an exploited ecosystem. The political process is complicated and to some extent unpredictable. This aspect of the question is recognized to be important, but could not be addressed here. Assuming then that someone really is in charge, what would be involved in the * decision making process? As Clark points out, "there is no alternative but first to model the system. " We agree. However, if the original question was loaded, modeling is the adulterate."
Current development results in a linear flow from raw material to waste, which cannot be sustainable in the long term. Plus, a global population of 7 billion people means that there are 7 billion waste producers in the world. At present, dumping and landfilling are the primary practices for getting rid of municipal solid waste (MSW). However, this waste contains resources that we've yet to utilize. To create sustainable societies, we need to approach zero waste by recovering these resources. There are cities and countries where zero waste is close to becoming a reality. Landfilling of organic waste is forbidden in Europe, and countries such as Sweden, Germany, Belgium, and Switzerland have developed a variety of technologies to recover resources from MSW. Resource Recovery to Approach Zero Municipal Waste explores the solid waste management laws and regulations of different countries, comparing the latest resource recovery technologies and offering future perspectives. The book tackles the many technical, social, ecological, economical, and managerial aspects of this complex subject while promoting the development of sustainable societies to achieve a greener global environment.
Zsuzsa Gille combines social history, cultural analysis, and environmental sociology to advance a long overdue social theory of waste in this study of waste management, Hungarian state socialism, and post Cold War capitalism. From 1948 to the end of the Soviet period, Hungary developed a cult of waste that valued reuse and recycling. With privatization the old environmentally beneficial, though not flawless, waste regime was eliminated, and dumping and waste incineration were again promoted. Gille s analysis focuses on the struggle between a Budapest-based chemical company and the small rural village that became its toxic dump site."
This book surveys state-of-the-art and prospective practices, methods and technologies in agri-food and forestry sectors to document the potential measurable improvements in areas of environmental management, food security, economic growth, social cohesion and human health at the local and global scale. With a focus on the ecosystems-resources-climate-food-health nexus as a framework towards achieving the UN Sustainable Development Goals applicable in these sectors, the book offers a portfolio of guidelines and standards that assesses the affordability, potential profitability and possible unintended consequences of interventions. The areas of intervention covered in the study include global and local forest resources management, safe wastewater reuse for irrigation, sustainable crop and plant protection (e.g. biopesticides, bioherbicides), carbon sequestration and emission reduction strategies, and safe processing methods for food and food waste (e.g. sustainable food preservatives and healthier food). The book is primarily intended for academics, professionals, and policymakers. The professional audience, including enterprises in the forestry, farming, food processing, healthcare and waste management sectors, will take advantage of the updated knowledge basis concerning the innovations in the respective practices, methods and technologies, including their feasibility, affordability and profitability, and policymakers will find useful the comprehensive review of these innovations which could be strategically promoted and deployed in the next decade, with the aim of achieving the UN Sustainable Development Goals.
Dieses Handbuch besteht aus insgesamt 7 Einzelbanden. Von der Bundesanstalt fur Geowissenschaften und Rohstoffe berufene Wissenschaftler stellen aufgrund verschiedenster Methodenkombinationen, unter Berucksichtigung der wissenschaftlichen Grundlagen und Informationen, das Werk zusammen. Dieser Band befasst sich mit den geochemischen und chemisch-anlytischen Methoden, die bei der Erkundung des geologischen Untergrundes von Deponien und Altlasten zum Einsatz kommen koennen. Erlautert werden auch die Messprinzipien, die Anlage und Durchfuhrung der Feldarbeiten, die Bearbeitung und Interpretation der Messdaten, die Qualitatssicherung sowie der personelle, technische und zeitliche Aufwand. Beispiele veranschaulichen die Anwendungsmoeglichkeiten der Methoden und die Darstellung der Ergebnisse.
Legislation, Technology and Practice of Mine Land Reclamation contains the proceedings of the Beijing International Symposium on Land Reclamation and Ecological Restoration (LRER 2014, Beijing, China, 16-19 October 2014). The contributions cover a wide range of topics: - Monitoring, prediction and assessment of environmental damage in mining areas - Subsidence land reclamation and ecological restoration - Soil, vegetation and biological diversity - Mining methods and measures for minimization of land and environmental damage - Solid wastes and AMD treatment - Contaminated land remediation - Land reclamation and ecological restoration policies and management - Surface mined land reclamation and ecological restoration - Case study on mining reclamation and ecological restoration Legislation, Technology and Practice of Mine Land Reclamation will be of interest to engineers, scientists, consultants, government officials and students involved in environmental engineering, soil science, ecology, forestry, mining, and land reclamation and ecological restoration in mining areas.
As prosperity levels rise, so too does the level of products and services manufactured. For decision makers facing a growing waste burden, it is imperative that more sustainable waste management programmes are based on an understanding of the complex relationship between waste prevention policies and individual behavior regarding waste generation. This book examines the interplay; taking a close look at the role of motivation, difficulties, values and constraints. The first part of the book explores the theoretical framework, policy, barriers and facilitators for waste prevention behaviour. The second part presents in-depth case studies from three cities (in Brazil, the UK and Japan) examining the contextual factors, behavioural variations among them and the role of motivation and constraints in their populations. The book provides a detailed picture of how waste prevention policies enter the private, domestic sphere, offering insights for generating behavioural change at the household level and thus moving larger communities towards sustainable waste management.The book should be of interest to students and researchers in the areas of environmental policy, management, sociology, psychology, geography, technology and waste studies.
Conflicts over waste disposal facility siting is a pressing issue not only in developed countries but also in fast-growing countries that face drastic waste increase and rapid urbanisation. How to address distributive justice has been one of the biggest concerns. This book examines what determines the influence of distributive justice in siting policy. In the 23 wards of Tokyo, one idea of distributive justice, known as "In-Ward Waste Disposal" (IWWD), emerged amid the ongoing garbage crisis in the early 1970s. IWWD was adopted as a significant principle, but its influence waxed and waned over time, until the idea was finally abandoned in 2003. To unravel causes and mechanisms behind the changing influence of IWWD, this book adopts a framework that considers not only ideational causes, but also the power struggles between rationally calculating actors, as well as the influence of external events and environments. By combining an in-depth case study with an integrative theoretical framework, this book tells a thought-provoking story of the changing influence of IWWD in a deep, comprehensive and consistent way. This book provides significant insights and lessons for both academics and practitioners.
Edited by Reinhard Kirsch, this book demonstrates the use of geophysics for the detection and delineation of groundwater resources. As well as being an excellent reference, it could also be used as a textbook. An addition to the bookshelf of any geophysicist.
Geotextile encapsulated sand elements are three-dimensional systems manufactured from textile materials, non-woven materials or combinations of textile and non-woven materials that are filled with sand on-site. These systems are relatively new and the number of applications is growing in river and coastal engineering. Quite often Geosystems are mentioned as a possible solution, but planners, designers and contractors feel rather hesitant about the application of geotextile encapsulated sand elements due to a lack of experience and adequate design rules. The use of geosystems has the advantage that local material can be applied and that no (expensive) quarry stone needs to be extracted and transported from the mountains to the site. Compared to traditional construction methods (with quarry stone) the application of geotextile sand filled elements may add considerable operational advantages to the execution of marine works and may offer attractive financial opportunities. In the application of geotextile encapsulated sand elements however, proper attention should be paid to the laying down of different responsibilities of the parties in the contract. In Geosystems. Design Rules and Applications four types of geotextile sand elements are distinguished, each with specific properties: geo-bags, geo-mattresses, geotextile tubes and geotextile containers. The focus is on the use of geosystems filled with sand as a construction in river and coastal engineering. Geosystems filled with sludge are not covered. The chapters "Introduction" and "General design aspects" are followed by four chapters of the same structure dealing with the various systems. Each of these four chapters starts with a general description and applications and ends with a calculation example. Design aspects are dealt with in the remaining paragraphs. Geosystems. Design Rules and Applications is based on research commissioned by the Dutch Rijkswa
This title includes a number of Open Access chapters. This compendium volume contains the most current technical and economic analyses of emerging waste disposal strategies. The editor, a well-respected researcher in this field, has selected articles that will be valuable to readers who range from engineers and academics to decision-makers in both the public and private sectors. Several international case studies give practical applications and examples of the various technologies and approaches. A final section discusses policy planning for the future.
Global trade in electronic waste (e-waste) has led to various waste management challenges and many regions of the Global South have suffered the toxic consequences. In Burning Matters, Peter C. Little explores the complex cultural, economic, and environmental health politics of e-waste work in Ghana. He brings to light the lived experiences of Ghana's e-waste workers, as they navigate the health, social, and economic challenges of highly toxic e-waste labor. In particular, Little engages the experiences of e-waste workers who burn bundles of electrical cables to extract copper, a practice that contaminates bodies and the urban environment and which has attracted international organizations seeking to mitigate risk and find quick tech solutions to this highly toxic e-waste work. A nuanced perspective on e-waste burning and environmental politics in Africa at a time when global e-waste generation and trade is at an all-time high, Burning Matters contends that e-waste interventions devoid of ethnographic perspective and knowledge risk downplaying the vibrant complexities of e-waste itself and the matters of social life and labor that matter most to Ghana's e-waste workers.
This book provides extensive information on the chemicals that inhabit our environment, our food, our water and our air and the impact that they may be having on human health. The author is a medical scientist, with training in the law. The book documents current understanding about pesticides in food, the plastics revolution, toxic metals, air, water and electronic waste pollutants, chemical exposure in the workplace, radiation pollutants, chemical exposure and hearing loss, how our bodies deal with chemicals, genetic variability and the risk of disease, the effect of chemicals on genes, mitochondria and the immune system and what we can do about it all. Industrialisation has resulted in many thousands of chemicals, which are being continuously developed and often escaping from where they are used into our human environment, without us really knowing enough about them. In high dosages or with continuous small dosage, the evidence suggests, that many of them could interfere with human health and some of them are known to be doing so. But for the vast majority, we are left wondering whether some could be responsible for some diseases the causes of which are inadequately understood. Every chapter is thoroughly reinforced with several pages of references from the peer-reviewed literature.
This book analyses 'zero-waste' (ZW) as an emerging waste management strategy for the future, which considers waste prevention through innovative design and sustainable consumption practices. Drawing on a diverse range of case studies from Australia, Bangladesh, Japan, New Zealand, Sweden, and the USA, this book explores why urban waste management systems still remain a major challenge for almost all cities around the world. Rejecting waste as an 'end-of-life' problem, Atiq Zaman and Tahmina Ahsan instead consider waste prevention through the ZW model, in which resources are utilized and consumed with minimum environmental degradation. In addition, the authors give extended discussion on why embracing the ZW concept will be beneficial for the circular economy (CE). Providing a strategic zero-waste framework and an evaluation tool to measure waste management performance aimed towards ZW goals, this book will be of great relevance to students, scholars, and policymakers with an interest in waste management, sustainable consumption, urban planning, and sustainable development.
Industrial wastewater contains many pollutants. This book focuses on heavy metals found in textile effluents because of their known toxicity effect in the environment. Wastewater from a textile industry (UTEXRWA) in Rwanda has been screened for the occurrence of Cd, Cr, Cu, Pb, and Zn. Batch and pilot experiments on adsorption equilibrium, kinetics, and sulfide precipitation using volcanic rock as adsorbent and packing material have been investigated. A low cost and integrated system for treatment has been developed, combining an anaerobic bioreactor as the main treatment step, followed by a polishing step composed by a polishing pond containing algae, duckweed, and water hyacinth. More than 90% of metal removal was achieved in the bioreactor, with metal sulfide precipitation as long-term removal mechanism. The use of algae and duckweed as alternatives for water hyacinth plants showed no differences between algae and duckweed ponds based on abiotic differences. Overall, both systems' performance was close and these systems are well suited as a polishing step for wastewater containing low metal concentrations. The integrated system for heavy metal removal showed how two complementary systems for heavy metal removal can work in combination and good removal performance can therefore be achieved.
Die TU Darmstadt setzte in Kooperation mit namhaften Industrieunternehmen EcoDesign nachhaltig in deren Unternehmenspraxis um. Der Forschungsbereich wurde von der DFG gef rdert und erzielte praxisnahe und nachvollziehbare Ergebnisse: zuk nftige rechtliche Rahmenbedingungen, Implementierung, Entwicklung umweltgerechter Energiespeicher, Arbeitsmittel f r Investitionsg ter u.v.m. Plus: konkrete Fallbeispiele, Umsetzungsleitfaden f r Anwender.
Waste electrical and electronic equipment (WEEE) generation is a global problem. Despite the growing awareness and deterring legislation, most of the WEEE is disposed improperly, i.e. landfilled or otherwise shipped overseas, and treated in sub-standard conditions. Informal recycling of WEEE has catastrophic effects on humans and the environment. WEEE contains considerable quantities of valuable metals such as base metals, precious metals and rare earth elements (REE). Metal recovery from WEEE is conventionally carried out by pyrometallurgical and hydrometallurgical methods. In this PhD research, novel metal recovery technologies from WEEE are investigated. Using acidophilic and cyanide-generating bacteria, copper and gold were removed from crushed electronic waste with removal efficiencies of 98.4 and 44.0%, respectively. The leached metals in solution were recovered using sulfidic precipitation and electrowinning separation techniques. Finally, a techno-economic assessment of the technology was studied. This research addresses the knowledge gap on two metal extraction approaches, namely chemical and biological, from a secondary source of metals. The essential parameters of the selective metal recovery processes, scale-up potential, techno-economic and sustainability assessment have been studied. |
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