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Books > Earth & environment > The environment > Waste management > General
Cementitious materials are being widely used as solidification/stabilisation and barrier materials for a variety of chemical and radioactive wastes, primarily due to their favourable retention properties for metals, radionuclides and other contaminants. The retention properties result from various mineral phases in hydrated cement that possess a high density and diversity of reactive sites for the fixation of contaminants through a variety of sorption and incorporation reactions. This book presents a state of the art review and critical evaluation of the type and magnitude of the various sorption and incorporation processes in hydrated cement systems for twenty-five elements relevant for a broad range of radioactive and industrial wastes. Effects of cement evolution or ageing on sorption/incorporation processes are explicitly evaluated and quantified. While the immobilisation of contaminants by mixing-in during hydration is not explicitly addressed, the underlying chemical processes are similar. A quantitative database on the solid/liquid distribution behaviour of radionuclides and other elements in hydrated cement systems is established on the basis of a consistent review and re-evaluation of literature data. In addition to recommended values, all underlying original experimental data and key experimental info rmation are provided, which allows users to trace the given recommendations or to develop their own set of key values. This database is closely tied to the safety analysis of near surface disposal of radioactive waste in Belgium. It focuses on radioelements, toxic stable elements and heavy metals, which makes it relevant for investigations involving the interaction of radioactive and conventional contaminants with cement-based barriers.
This book contains peer reviewed papers accepted for presentation at the National Conference on Advances in Environmental Science & Technology. Topics include environmental regulations, groundwater remediation technologies, waste to energy, climate change, economics, environmental justice, fate and transport of contaminants, food bio-processing, innovative environmental technologies, sustainable energy and water resources and waste management. Federal agencies, private agencies and university professors set the stage for the September 12, 2013 National Conference on Advances in Environmental Science and Technology. The purpose of the National Conference on Advances in Environmental Science and Technology which was held in Greensboro, North Carolina, was to provide a forum for agencies to address advances in environmental science and technology including problems, solutions and research needs.
Natural saline water, waste water, and irrigation return flow endanger the groundwater aquifers in the Rift. In the long run this will ruin the socio-economic backbone of the settlements in the area. Sustainability of the water resources will only be achieved when the process of water replenishment and its underground flow is understood and water extraction is regionally controlled. Rare earth element and spider patterns are presented as new tools for studying the hydrology. Progress in 3-D modelling of groundwater flow proved successfully the impact of pumping on the surroundings of wells and overexploitation of aquifers.
By the end of the 1970s, contaminated sites had emerged as one of the most complex and urgent environmental issues affecting industrialized countries. The authors show that small and prosperous Switzerland is no exception to the pervasive problem of sites contamination, the legacy of past practices in waste management having left some 38,000 contaminated sites throughout the country. This book outlines the problem, offering evidence that open and polycentric environmental decision-making that includes civil society actors is valuable. They propose an understanding of environmental management of contaminated sites as a political process in which institutions frame interactions between strategic actors pursuing sometimes conflicting interests. In the opening chapter, the authors describe the influences of politics and the power relationships between actors involved in decision-making in contaminated sites management, which they term a "wicked problem." Chapter Two offers a theoretical framework for understanding institutions and the environmental management of contaminated sites. The next five chapters present a detailed case study on environmental management and contaminated sites in Switzerland, focused on the Bonfol Chemical Landfill. The study and analysis covers the establishment of the landfill under the first generation of environmental regulations, its closure and early remediation efforts, and the gambling on the remediation objectives, methods and funding in the first decade of the 21st Century. The concluding chapter discusses the question of whether the strength of environmental regulations, and the type of interactions between public, private, and civil society actors can explain the environmental choices in contaminated sites management. Drawing lessons from research, the authors debate the value of institutional flexibility for dealing with environmental issues such as contaminated sites.
This book covers the fundamental requirements for air, soil and water pollution control in oil and gas refineries, chemical plants, oil terminals, petrochemical plants, and related facilities. In this concise volume, Dr. Bahadori elucidates design and operational considerations relevant to critical systems such as the waste water treatment units, solid waste disposal, and waste water sewer treatment as well as engineering/technological methods related to soil and air pollutions control. Engineers and technical managers in a range of industries will benefit from detail on a diverse list of topics.
The construction industry is the largest single waste producing industry in the UK. Ensuring a supply chain of recycled materials affords many potential gains, achieved through: reducing the material volume transported to already over-burdened landfill sites, possible cost reductions to the contractor/client when considering the landfill tax saved and the potential for lower cost material replacements, a reduction in the environmental impact of quarrying and the saving of depleting natural material resources. Reuse of Materials and Byproducts in Construction: Waste Minimization and Recycling addresses use of waste and by products in the construction industry. An over view of new "green" design guides to encourage best practice will be examined and current legislation that channels on site practices, such as site waste management plans. Fundamental individual construction materials are discussed and the process of reforming by products and waste products into new construction materials is investigated, examining the material performance, energy required to convert waste into new products and viability of recycling. The main range of constructional materials will be examined. Aimed at postgraduate students, lecturers and researchers in construction and civil engineering, the book will also be of interest to professional design practices.
This monograph presents an analysis of construction safety problems and on-site safety measures from an economist's point of view. The book includes examples from both emerging countries, e.g. China and India, and developed countries, e.g. Australia and Hong Kong. Moreover, the author covers an analysis on construction safety knowledge sharing by means of updatable mobile technology such as apps in Androids and iOS platform mobile devices. The target audience comprises primarily researchers and experts in the field but the book may also be beneficial for graduate students.
This book, written by specialists from Canada, India, Italy, Palestine, Peru, Spain and the Netherlands, is a guide to establishing a city on a sustainable path. It addresses sustainable urban planning issues by breaking the city down to its components. A broad range of planning and sustainability considerations are discussed. Important concluding chapters provide a 'what to do and how to do it' practical roadmap for implementing a sustainability program.
A visionary approach to eliminating industrial waste streams . . .
Concise and uncluttered, this book is an eye-opener for anyone who would like to work toward a world free of industrial pollution in our fragile environment.
Provides a comprehensive review and evaluation of waste containment technologies presently practiced in remediation applications. Covers the state-of-knowledge, construction and performance of the three main barrier types - vertical (walls), bottom (floors) and surface (caps).
In the almost ten years since the publication of the first edition of Motor Fleet Safety and Security Management, the availability of new methods of transportation has made travel faster, and consequently, safety and security have become more important and more complex. Businesses must now become proactive in their own security and planning for emergencies. This second edition of a bestselling resource provides a complete understanding of how to develop and manage a comprehensive motor fleet safety and instructional program. It presents the underlying concepts, basic techniques, and principles of motor fleet safety and security management. New, Revised, and Expanded Topics in the Second Edition: Elements of a fleet safety program Accident prevention Consideration for small-fleet driver selection, training, instruction, and supervision Vehicle inspection How to organize accident data Job safety analysis (JSA) meetings for commercial drivers Fleet transportation publicity School bus safety Shipping and storage of hazardous materials Security in transportation Model of a motor fleet transportation program designed to assist in the implementation of a program To achieve optimum safety, everyone involved in the transportation system should be adequately trained, supervised, and monitored. Proper data and incident reports must be maintained to identify trends and problem areas. Keeping the trademark style that made the previous edition so popular, the author addresses the critical steps for successful driver selection, training, instruction, and supervision. He provides you with the foundation you need to combat common problems and manage your motor fleet transportation system.
This book focuses on the treatment and disposal technology used for solid waste in China, puts forward an optimal management scheme that takes into account the complete lifecycle, and introduces a new technical model that reflects the synergies of resource utilization and secondary pollution control. In addition, it provides a set of methods for professional on-site investigation, risk assessment, classification management and control to minimize the risk of groundwater contamination by solid waste at landfill. Given the extent and depth of knowledge and experience gathered in the book, it offers an important reference guide for government managers, environmental researchers, and all those involved in and concerned about solid waste disposal.
Life Cycle Assessment (LCA) has become the recognized instrument to assess the ecological burdens and human health impacts connected with the complete life cycle (creation, use, end-of-life) of products, processes and activities, enabling the assessor to model the entire system from which products are derived or in which processes and activities operate. This volume introduces the major new book series LCA Compendium - The Complete World of Life Cycle Assessment. In this volume, the main drivers in the development of LCA are explored. The volume also discusses strengths and limitations in LCA as well as challenges and gaps, thus offering an unbiased picture of the state-of-the-art and future of LCA.
Putting forward an up-to-date waste-to-energy approach that combines experience, sophisticated modeling and technical-economic analysis, this book examines the current need for the maximum utilization of energy from waste and the associated environmental impacts. It outlines step-by-step procedures for a complex and original waste-to-energy approach from the idea to its industrial application. With waste incinerators and industrial plants producing large amounts of pollutants, municipalities as well as smaller decentralized operations are beginning to focus on waste research. The principal advantage of utilizing research findings is the ability to apply a complex approach "from idea to industrial implementation" with respect to the needs of the market established by thorough market analysis. This book builds on this concept with an original approach that takes into consideration geographical aspects, the specifics of regions/micro-regions and technological units and/or equipment. Key areas discussed and analyzed in the text include: strategic planning of energy-source locations according to the nature of the respective region or microregion; types and amounts of wastes; logistics etc. using original mathematical models; consideration of on-site processing of various types of waste, taking into account the character of the region (agricultural, industrial etc.); tailor-made technologies for energy recovery from various types of wastes; implementation of individual technologies with original elements; and support for environmental protection based on advanced flue gas (i.e. off-gas in the case of incineration) cleaning methods.
This book proposes the use of waste from oil drilling and sugar cane bagasse ash in the production of ecologically friendly soil-cement bricks. It offers a viable alternative to the traditional bricks available on the market, which use wood as fuel: manufacturing bricks from waste is less costly and does not require the consumption of trees and forests. It also proposes an alternative to the current discharging of the above-mentioned types of waste in sanitary landfills, avoiding additional environmental problems.
This thesis uses neoclassical growth models to evaluate what effect the limited availability of nonrenewable resources has on the economy's (world's) growth potential. Markus Merz concludes that recycling may serve as a mid-term solution to continued growth, but technological progress is needed in the long-run. The theoretical analysis starts with the well-known Dasgupta-Heal model and considers the effect of recycling and technological progress on the resource constraints; resource-augmenting and backstop technology are analyzed. After a thorough analysis of the models it is concluded that the ultimate solution to long-term economic growth is a backstop technology.
FROM THE INTRODUCTION This three-volume set, Bioremediation: Principles and Practice, provides state of the art description of advances in pollution treatment and reduction using biological means; identify and address, at a fundamental level, broad scientific and technological areas that are unique to the subject or theme and that must be understood if advances are to be made; and provide a comprehensive overview of new developments at the regulatory, desk-top, bench-scale, pilot scale, and full-scale levels. The set covers all media-air, water, and soil/sediment-and blends the talents, knowledge, and know-how of academic, industrial, governmental, and international contributors. The set addresses the removal of both hazardous and nonhazardous contaminants from the liquid, solid, and gas phase using biological processes. This includes the biological treatment of wastes of municipal and industrial origin; bioremediation of leachates, soils, and sediments; and biofiltration for contaminated gases.
This book evaluates and discusses the main sustainability challenges encountered in the production of biofuel and bio-products from oil palm biomass. It starts off with the emphasis on oil palm production, oil palm products recovery and oil palm wastes utilization. The simultaneous production of these bio-products for sustainable development is discussed. This is followed by the key factors defining the sustainability of biofuel and bio-product production from oil palm biomass. The environmental issues including ecological, life cycle assessment and environmental impact assessment of oil palm plantation, milling and refining for the production of biofuels and bio-products are presented. Socio-economic and thermodynamic analysis of the production processes are also evaluated using various sustainability assessment tools such as exergy. Lastly, methods of improving biofuel production systems for sustainable development are highlighted.
WINNER: 2020 International Solid Waste Association Publication Award Among other factors, rapid global population growth, our development model and patterns of production and consumption have increased waste generation worldwide to unsustainable rates. This rise has led to crises in many countries where waste management practices are no longer sound. Global Waste Management outlines the emerging global waste crisis considering the perspectives of developed and developing countries around the world and the international relationships between them. This book provides an ecological viewpoint as well as studying these problems from a legal and justice standpoint. Global Waste Management contextualises the problems faced when dealing with waste including the causes and origins. Focus is given to cross border waste transfer, as an ongoing and controversial practice, making waste management a global matter. This book scrutinizes existing international, European and Brazilian regulation on waste to highlight the complexity of the subject and the weaknesses of the law. Using a critical and socio-ecological approach, the book proposes an original model of governance to support a new system of global waste management that takes into account ecological sustainability and social justice to overcome the waste crisis. To create these models, a theoretical framework on socio-ecological justice is developed and combined with different discourses and theories described throughout the book. This is the essential guide to understanding the global waste crisis and the future of waste management.
Concrete is the most used man-made material in the world since its invention. The widespread use of this material has led to continuous developments such as ultra-high strength concrete and self-compacting concrete. Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste focuses on the recent development which the use of various types of recycled waste materials as aggregate in the production of various types of concrete. By drawing together information and data from various fields and sources, Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste provides full coverage of this subject. Divided into two parts, a compilation of varied literature data related to the use of various types of industrial waste as aggregates in concrete is followed by a discussion of the use of construction and demolition waste as aggregate in concrete. The properties of the aggregates and their effect on various concrete properties are presented, and the quantitative procedure to estimate the properties of concrete containing construction and demolition waste as aggregates is explained. Current codes and practices developed in various countries to use construction and demolition waste as aggregates in concrete and issues related to the sustainability of cement and concrete production are also discussed. The comprehensive information presented in Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste will be helpful to graduate students, researchers and concrete technologists. The collected data will also be an essential reference for practicing engineers who face problems concerning the use of these materials in concrete production.
This report is a useful tool for countries starting to recycle aggregates or construction and demolition waste. It contains the latest developments in this field, introduces a completely new approach to the procedure of proportioning concrete mixtures with recycled aggregate, references recent publications, opinions and discrepancies in relation to the durability of recycled concrete, such as freeze-thaw standards, studies of chloride penetration and diffusion, and sulfate attacks, the use of the fine fraction <4mm, quality assurance of concrete recycled aggregate, sustainability and recycling construction waste and global impact assessment of urban renewal based on sustainable recycling strategies for construction and demolition waste. This volume will be of interest to recyclers, researchers and consumers.
Agro-industrial wastes are end-products emerging after industrial processing operations and also from their treatment and disposal e.g. solid fruit wastes and sludge. The agro-industrial wastes are often present in multiphase and comprise multicomponent. Nevertheless, these wastes are a goldmine as they possess valuable organic matter which can be diverted towards high value products ranging from polymers to antibiotics to platform chemicals. There have been plenty of books published on bioenergy, enzymes and organic acids, among others. However, this emerging field of biochemical has not yet been covered so far which is an important entity of the biorefinery model from waste biomass and needs to be understood from fundamental, applied as well as commercial perspective which has been laid out in this book.
Among the goals of environmentally sound waste treatment is the recycling of organic wastes. The most practiced options are composting and anaerobic digestion, both processes being carried out by microorganisms. This book provides an overview of the various ways microbes are doing their job and gives the reader an impression of their potential. The sixteen chapters of this book summarize the advantages and disadvantages of treatment processes, whether they are aerobic like composting or work without oxygen like anaerobic digestion for biogas (methane) production. These chapters show the potential of microorganisms to create valuable resources from otherwise wasted materials. These resources include profitable organic, humus-like soil conditioners or fertilizer components which are often suppressive to plant diseases. Composts may thus improve soil carbon sequestration, or support sustainable agriculture by reducing the need for mineral fertilizers or pesticides. If anaerobic digestion is used, the biogas produced may replace fossil fuels. Thus, proper biological waste treatment with the help of microorganisms should contribute to a reduction of anthropogenic greenhouse gas production.
This book is the second edited compilation of selected, refereed papers submitted to ERTEP 2007. The book is organized into 10 chapters along four of the key themes that were discussed at the conference: Environmental Health Management; Mining and Environment; Environmental Monitoring and Policy Development; and Susta- ability and Social Responsibility. It is hoped that the contents of the book will p- vide an insight into some of the environmental and health management challenges confronting the developing world and the steps being taken to address them. The ?rst three chapters under the Environmental Health and Management theme discusses issues related to food security and related environmental distress in sub- Saharan Africa. Chapter 1 argues that pervasive poverty and low agricultural p- ductivity are important factors in understanding food insecurity in the region, and broader global processes are examined. This chapter maintains that while poverty undermines individual and household access to suf?cient food through market p- chase, land inequalities, corruption, structural adjustment programs, civil con?ict, HIV/AIDS and the role of the World Trade Organization Agreement on Agric- ture are decisive. The authors argue that achieving food security in sub-Saharan Africa requires policies and actions that are integrated with efforts to reduce poverty, enhance livelihoods and incomes and increase agricultural output, while also paying attention to underlying structural factors that bear on agriculture in the region. |
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