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Books > Earth & environment > The environment > Waste management
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.
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.
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.
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.
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.
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.
Construction and Demolition Waste (CDW), from the construction, maintenance, renovation and demolition of buildings and structures, represents a large proportion of the waste in industrialized societies. Compared to other forms, such as household waste, more than 90% of CDW can be used as a resource and a substitute for construction materials, especially for primary, natural raw materials. Reuse, recovery and recycling depends on the quality and market for the materials, and the environmental impact of the processes for conversion of CDW from old structures to its use in new structures. However, the utilization today of CDW products as secondary resources is marginal. Most CDW is deposited or used as fill material, and the opportunities of high quality recycling are generally neglected. This book presents the opportunities for the sustainable and resource efficient utilisation of CDW, focusing on recycling of concrete and masonry as the major forms of CDW. The recycling of gypsum, timber, mineral wool, asphalt and other types are also described. Its aim is to present a chain of value and material streams in the transformation of obsolete buildings and structures into new buildings and structures. It takes a holistic view, focusing on the lifecycle economy (the circular economy) and integrated management aspects of various scenarios ranging from high industrial urban renewal to debris removal and management after disasters and conflicts. It is based on the authors 35 years of research and development combined with practical international experience within the demolition and recycling area. It addresses students, architects, civil engineers, building owners, public authorities and others working in urban planning, demolition and resource management in the building and construction sector and in the reconstruction of damaged buildings after disasters and wars.
This open access book provides a cross-sectoral, multi-scale assessment of marine litter in Africa with a focus on plastics. From distribution, to impacts on environmental and human health, this book looks at what is known scientifically. It includes a policy analysis of the instruments that currently exist, and what is needed to help Africa tackle marine litter-including local and transboundary sources. Across 5 chapters, experts from Africa and beyond have put together a summary of the scientific knowledge currently known about marine litter in Africa. The context of the African continent and future projections form a backdrop on which the scientific knowledge is built. This scientific knowledge incorporates quantities, distributions, and pathways of litter into the marine environment, highlighting where the impacts of marine litter are most felt in Africa. These impacts have widespread effects, with ecological, social, economic, and human health repercussions. While containing detailed scientific information, this book provides a sound knowledge base for policymakers, NGOs and the broader public.
Numerical Methods in Geotechnical Engineering IX contains 204 technical and scientific papers presented at the 9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2018, Porto, Portugal, 25-27 June 2018). The papers cover a wide range of topics in the field of computational geotechnics, providing an overview of recent developments on scientific achievements, innovations and engineering applications related to or employing numerical methods. They deal with subjects from emerging research to engineering practice, and are grouped under the following themes: Constitutive modelling and numerical implementation Finite element, discrete element and other numerical methods. Coupling of diverse methods Reliability and probability analysis Large deformation - large strain analysis Artificial intelligence and neural networks Ground flow, thermal and coupled analysis Earthquake engineering, soil dynamics and soil-structure interactions Rock mechanics Application of numerical methods in the context of the Eurocodes Shallow and deep foundations Slopes and cuts Supported excavations and retaining walls Embankments and dams Tunnels and caverns (and pipelines) Ground improvement and reinforcement Offshore geotechnical engineering Propagation of vibrations Following the objectives of previous eight thematic conferences, (1986 Stuttgart, Germany; 1990 Santander, Spain; 1994 Manchester, United Kingdom; 1998 Udine, Italy; 2002 Paris, France; 2006 Graz, Austria; 2010 Trondheim, Norway; 2014 Delft, The Netherlands), Numerical Methods in Geotechnical Engineering IX updates the state-of-the-art regarding the application of numerical methods in geotechnics, both in a scientific perspective and in what concerns its application for solving practical boundary value problems. The book will be much of interest to engineers, academics and professionals involved or interested in Geotechnical Engineering. This is volume 2 of the NUMGE 2018 set.
This book addresses waste generation problems from various sectors, including industries, agriculture, and household. It focuses on how modern biotechnological approaches could help manage waste in an eco-friendly manner and generate precious bioenergy. It discusses the inadequate waste management systems damaging the environment and its adverse impacts on climate change-related problems. This book covers all the essential information regarding various types of waste and their management. It is a comprehensive compilation for understanding the efficient generation of bioenergy. It is a relevant reading material (resource) for anyone who wishes to study waste management as Chemist, Biologist, Biotechnologist, Industrialist, Ecologist, Microbiologist, Economist, and all disciplines related to the environment.
Every practicing environmental engineer should already have a firm grasp on the basics of hazardous waste site remediation-the key to confronting a site problem, and devising an effective solution.
Interest in green and sustainable design is growing throughout the world. Both national and local governments are active in promoting reuse and recycling in order to reduce the amount of waste going to landfill. This guide identifies how building designers and constructors can minimize the generation of waste at the design stage of a building project by using reclaimed components and materials. Authoritative, accessible and much-needed, this book highlights the opportunities for using reclaimed components and materials and recycled-content building products for each element of a building, from structure and foundations to building services and external works. Current experience is illustrated with international case studies and practical advice. It discusses different approaches to designing with recycling in mind, and identifies the key issues to address when specifying reclaimed components and recycled materials in construction work. This book will be invaluable for building professionals including architects, specifiers, structural and service engineers, quantity surveyors, contractors and facilities managers as well as students of architecture and civil engineering. Published with NEF
Converting sludge into construction materials is deemed to be a sustainable approach to alleviating sludge disposal problems and conserving natural resources.This compendium presents the state-of-the-art development in recycling sludge into construction materials. A research-based development of engineering products made from sludge for common construction applications such as bricks, aggregates and cement-replacement materials is outlined. In-depth discussions on the properties of the products and their processing technology, the technical suitability for construction applications, and experimental study and assessment of toxic or hazardous chemicals leached from the products are prominently highlighted. Challenges and prospect of sludge recycling are also included.Contributed by eminent authors who are recognized authority in the field of sludge treatment and reuse, the unique monograph is a useful reference guide for professionals, researchers, academics and graduate students majoring in waste management, environmental engineering, civil engineering and materials engineering.
As global populations continue to increase, the application of biotechnological processes for disposal and control of waste has gained importance in recent years. Advances in Waste-to-Energy Technologies presents the latest developments in the areas of solid waste management, Waste-to-Energy (WTE) technologies, biotechnological approaches, and their global challenges. It combines biotechnological procedures, sophisticated modeling, and techno-economic analysis of waste, and examines the current need for the maximum recovery of energy from wastes as well as the associated biotechnological and environmental impacts. Features: Presents numerous waste management practices and methods to recover resources from waste using the best biotechnological approaches available. Addresses the challenges, management, and policy issues of waste management and WTE initiatives. Includes practical case studies from around the world. Serves as a useful resource for professionals and students involved in cross-disciplinary and trans-disciplinary research programs and related courses. Discusses the economic and regulatory contexts for managing waste. This book will serve as a valuable reference for researchers, academicians, municipal authorities, government bodies, waste managers, building engineers, and environmental consultants requiring an understanding of waste management and the latest WTE technologies.
This book presents unique connectivity between waste management within the agenda 2030 of India. This book is the first publication presenting up-to-date work and knowledge about waste management and waste technologies to transfer waste to wealth in India. Besides, this book also presents the role of waste management and its contribution to achieving a sustainable development program in India, with vast implication worldwide. The main focuses of the book include waste and wealth and the associated technologies, recycling of solid waste, utilization of hazardous waste, use of nanoparticle in waste management, urban solid waste, generation of energy from organic waste, clean technologies, and use of waste in agriculture. The book is a unique source of information on the transformation of waste to wealth in India. This book is of interest to research communities in the field of waste management in India, and in similar socioeconomic countries, but also, due to the planetary implications, has global interest.
This book introduces advanced or emerging technologies for conversion of wastes into a variety of high-value chemicals and materials. Energy and resources can be recovered from various residential, industrial and commercial wastes, such as municipal wastewater and sludge, e-waste, waste plastics and resins, crop residues, forestry residues and lignin. Advanced waste-to-resource and energy technologies like pyrolysis, hydrothermal liquefaction, fractionation, de-polymerization, gasification and carbonization are also introduced. The book serves as an essential guide to dealing with various types of wastes and the methods of disposal, recovery, recycling and re-use. As such it is a valuable resource for a wide readership, including graduate students, academic researchers, industrial researchers and practitioners in chemical engineering, waste management, waste to energy and resources conversion and biorefinery.
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.
In an era of polarization, narrow party majorities, and increasing use of supermajority requirements in the Senate, policy entrepreneurs must find ways to reach across the aisle and build bipartisan coalitions in Congress. One such coalition-building strategy is the "politics of efficiency," or reform that is aimed at eliminating waste from existing policies and programs. After all, reducing inefficiency promises to reduce costs without cutting benefits, which should appeal to members of both political parties, especially given tight budgetary constraints in Washington. "Dust-Up" explores the most recent congressional efforts to reform asbestos litigation -- a case in which the politics of efficiency played a central role and seemed likely to prevail. Yet, these efforts failed to produce a winning coalition, even though reform could have saved billions of dollars and provided quicker compensation to victims of asbestos-related diseases. Why? The answers, as Jeb Barnes deftly illustrates, defy conventional wisdom and force us to rethink the political effects of litigation and the dynamics of institutional change in our fragmented policymaking system. Set squarely at the intersection of law, politics, and public policy, "Dust-Up" provides the first in-depth analysis of the political obstacles to Congress in replacing a form of litigation that nearly everyone -- Supreme Court justices, members of Congress, presidents, and experts -- agrees is woefully inefficient and unfair to both victims and businesses. This concise and accessible case study includes a glossary of terms and study questions, making it a perfect fit for courses in law and public policy, congressional politics, and public health.
The dead are gone. They count for nothing. Yet, if we count the dead, their number is staggering. And they account for most of what is great about civilization. Compared to the greatness of the dead, the accomplishments of the living are paltry. Which is it then: are the dead still there to be counted or not? And if they are still there, where exactly is "there"? We are confronted with the ancient paradox of nonexistence bequeathed us by Parmenides. The mystery of death is the mystery of nonexistence. A successful attempt to provide a metaphysics of death, then, must resolve the paradox of nonexistence. That is the aim of this study. At the same time, the metaphysics of death, of ceasing to exist, must serve as an account of birth, of coming to exist; the primary thesis of this book is that this demands going beyond existence and nonexistence to include what underlies both, which one can call, following tradition, "being." The dead and the unborn are therefore objects that lack existence but not being. Nonexistent objects - not corpses, or skeletons, or memories, all of which are existent objects - are what are "there" to be counted when we count the dead.
In the past 13 years since the publication of Longwall Mining, 2nd edition in 2006, although there have been no major changes in longwall mining technology and operations, many incremental developments in the whole system as well as various subsystems of the existing longwall mining operational technologies as detailed in the 2nd edition have been added to this edition. Major developments are automation, and health and safety technology, as well as equipment reliability, thereby greatly increasing productivity and cutting cost. In particular, the longwall system can now run automatically cut by cut forever without operators' intervention provided that the geology allows it. Other health and safety features such as LASC, personal proximity detection, color lighting, automatic shield water sprays and remote shearer control are fully operational. There are more than 7000 sensors installed in current longwall mining systems. The big data obtained and fast communication technology have been fully utilized to improve and solve operational problems in real time. Those features are fully documented in the new edition. In pursuit of high productivity and cutting cost, life cycle management that increases equipment reliability has been implemented by OEM. Automation improvement such as tail-end automatic chain tensioner greatly extends AFC chain's service life. Other incremental improvements including dust and methane controls, entry development, panel design and face move are addressed. Additional operational issues such as extension of panel width and compatibility test are also discussed. Since the last plow longwall mine was closed in 2018, the chapter on plow longwalling has been dropped and in its place Automation of Longwall Components and System is added. Also, a new chapter Longwall Top Coal Caving Mining (LTCC) is added due to its successful application in Australia since 2005. Longwall Mining, 3rd edition will be of interest to professionals and academics in the field of mining engineering specifically, serving both as a reference work and an (under)graduate textbook, but will also interest civil, geomechanical and geological engineers and rock mechanics professionals, as well as coal operators, mining consultants, researchers, equipment manufacturers, and government regulators.
Every day, every one of us contributes to the waste problem but, despite being a part of our lives, waste is poorly understood, even by those who should know better. We live in a throw-away society and yet what is discarded is a vital raw material and ingredient being traded as a valuable commodity around the world. Recycling our Future provides an insight into the challenges facing the industry and individuals as the world contemplates expanding waste mountains. Finite sources are being eroded as the world's growing and increasingly affluent population demands a better standard of living with bigger houses, new TVs, computers, etc. Waste is a valuable raw material when treated correctly but a hazard when neglected. The author warns of illegal shipments of waste continuing unabated, and highlights the pressures and challenges facing governments and the industry. He also explains how the system works from the moment a carton is dropped into a bin to being recycled, resold and restocked on supermarkets' shelves. He explodes the myths about waste recycling, looks at the technology that is used and explains why the subject matters to everyone.The book is supported by information from sources around the world and the author reveals how so-called rubbish has a value, how it is traded on the financial markets and suggests that waste should be treated as a prize worthy of investment, rather than a problem to be shunned.
With the increased interest in and demands for compost from commercial horticultural industries, composting is on the verge of becoming an economically feasible option for waste management. While horticultural producers can create some of the compost to meet their own needs, demand has grown beyond what they can supply for themselves and others. Compost Utilization in Horticultural Cropping Systems gives you the tools to meet the needs of this growing industry. Consider these statistics: Americans generate about 200 million megagrams of municipal solid waste per year The agricultural market for compost could reach over 680 million m3 per year Two horticultural areas together account for over 50% of compost use: landscaping (31%) and food crop production (25%) Now consider this: Proven benefits of compost use, including plant disease suppression, better moisture retention, supplying plant nutrients, and building soil organic matter Increased pressure on peat supplies and wider availability of compost products Creation of composting enterprises by the horticultural industry in response to its own needs, rising disposal fees for organic waste, and consumer demand for compost at retail centers The first book to establish a composite of the existing scientific knowledge on the use of compost in commercial horticultural enterprises, Compost Utilization in Horticultural Cropping Systems gives you a comprehensive review of the production, use, and economics of compost. It covers production methods, compost quality and the parameters associated with its measurement, and the biological, chemical, and physical processes that occur during composting. Rather than searching for information in various places, now you can find all the information you need in one convenient source.
Modern societies produce large amounts of waste of many different types. This presents a problem in terms of management or disposal to prevent harm to human health and the environment. Additionally it represents a loss of potentially useful resources. In the circular economy concept nothing would ever become waste because everything would be re-usable or its components recoverable. Ionic liquids provide a potential route for valorisation of different waste types, paving the way for a circular economy and a more sustainable world. Covering various types of waste, including municipal, industrial, electronic, and medical, while addressing patented and commercial applications, this book aims to deliver a comprehensive, but also critical, perspective on the application of ionic liquids towards waste valorisation. Waste Valorisation Using Ionic Liquids is a useful resource for academic and industrial players, in the fields of chemistry, chemical and environmental engineering, and biotechnology, as well as anyone working on waste management and resource recovery.
This book provides a basic understanding of waste management
problems and issues faced by modern society. Scientific, technical,
and environmental principles are emphasized to illustrate the
processes of municipal and industrial solid wastes and liquid
wastes, and the nature of impacts resulting from waste dispersal
and disposal in the environment. Economic, social, legal, and
political aspects of waste management are also addressed.
Scientific practices of removing waste in mega-cities of the global South are embedded in socio-cultural belief systems which reproduce existing social hierarchies. Thus going beyond a techno-managerial approach in waste management, Sneha Sharma critically interrogates the politics around urban waste disposal in Mumbai, India. She undertakes an ethnographic journey to the city's most unwanted space, a dumping site, to reveal how spaces and people are made into waste through exclusionary formal and informal practices. Offering new insights on topics of urban marginality, informality, urban planning this book will attract scholars from sociology, urban studies, and human geography. |
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