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Books > Professional & Technical > Environmental engineering & technology > General
In recent years, increasing attention and resources have been brought to bear on the relationship between the environment and congenital diseases. These diseases were previously thought to be mostly due to genetic causes. Even though the importance of genes as factors in causation is accepted, environmental factors seem to be implicated just as strongly. This book explores some further concepts that have arisen from more recent perceptions of environmental effects and their possible interactions with living systems. Amongst the topics discussed are: effects of prenatal exposure to toxic chemicals; intra-uterine exposure to drugs; effects of endocrine disrupters; environmental risk and sex ratio in newborns; surveillance of environmental impact; research and policy.
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
The book is concerned with contemporary methodologies used for automatic text summarization. It proposes interesting approaches to solve well-known problems on text-summarization using computational intelligence (CI) techniques including cognitive approaches. A better understanding of the cognitive basis of the summarization task is still an open research issue, an extent of its use in text summarization is highlighted for further exploration. With the ever-growing text and people on research has little time to spare for extensive reading, where, summarized information helps for a better understanding of the context at a shorter time. This book helps students and researchers to automatically summarize the text documents in an efficient and effective way. The computational approaches and the research techniques presented guides to achieve text summarization at ease. The summarized text generated supports readers to learn the context or the domain at a quicker pace. The book is presented with reasonable amount of illustrations and examples convenient for the readers to understand and implement for their use. The book is not to make readers understand what text summarization is, but for people to perform text summarization using various approaches. This also describes measures that can help to evaluate, determine and explore the best possibilities for text summarization to analyse and use for any specific purpose. The illustration is based on social media and healthcare domain, which shows the possibilities to work with any domain for summarization. The new approach for text summarization based on cognitive intelligence is presented for further exploration in the field.
Environmental Chemistry is a relatively young science. Interest in this subject, however, is growing very rapidly and, although no agreement has been reached as yet about the exact content and limits of this interdisciplinary discipline, there appears to be increasing interest in seeing environmental topics which are based on chemistry embodied in this subject. One of the first objectives of Environ mental Chemistry must be the study of the environment and of natural chemical processes which occur in the environment. A major purpose of this series on Environmental Chemistry, therefore, is to present a reasonably uniform view of various aspects of the chemistry of the environment and chemical reactions occurring in the environment. The industrial activities of man have given a new dimension to Environ mental Chemistry. We have now synthesized and described over five million chemical compounds and chemical industry produces about hundred and fifty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural deposits. Cities and metropolitan areas of up to 15 million inhabitants produce large quantities of waste in relatively small and confined areas. Much of the chemical products and waste products of modern society are released into the environment either during production, storage, transport, use or ultimate disposal. These released materials participate in natural cycles and reactions and frequently lead to interference and disturbance of natural systems.
Environmental science and engineering is a truly interdisciplinary field. From its origins in public health practice, concern for the well-being of our environment has embraced areas as diverse as chemistry, the earth sciences, biology, engineering and law. The specialist language of any discipline can be a barrier to co-operation and understanding in solving environmental problems. The Dictionary of Environmental Science and Engineering explains many important specialist environmental terms in a clear and concise way. It also provides an extensive guide to the many acronyms encountered in environmental science. The Dictionary of Environmental Science and Engineering will be a valuable reference tool for anyone working, whether directly or indirectly, with the environment. The dictionary describes many of the acts, organisations and requirements related to the legislation of the environment, giving particular emphasis to those of the United States of America. Thus, it will be particularly useful to those seeking a greater understanding of the US perspective on the environmental question.
Tackling environmental issues such as global warming, ozone depletion, acid rain, water pollution, and soil contamination requires an understanding of the underlying science and chemistry of these processes in real-world systems and situations. Chemistry for Environmental and Earth Sciences provides a student-friendly introduction to the basic chemistry used for the mitigation, remediation, and elimination of pollutants. Written and organized in a style that is accessible to science as well as non-science majors, this textbook divides its content into four intuitive chapters: Fire, Earth, Water, and Air. The first chapter explains classical concepts in chemistry that occur in nature such as atomic and molecular structures, chemical bonding and reactions, states of matter, phase transitions, and radioactivity. Subsequent chapters focus on the chemistry relating to the geosphere, hydrosphere, and atmosphere-including the chemical aspects of soil, water, and air pollution, respectively. Chemistry for Environmental and Earth Sciences uses worked examples and case studies drawn from current applications along with clear diagrams and concise explanations to illustrate the relevance of chemistry to geosciences. In-text and end-of-chapter questions with complete solutions also help students gain confidence in applying concepts from this book towards solving current, real-world problems.
Pattern recognition and other chemometrical techniques are
important tools in interpreting environmental data. This volume
presents authoritatively state-of-the-art applications of measuring
and handling environmental data. The chapters are written by
leading experts.
Most successful organizations recognize Maintenance Parts and Procurement as a critical success factor to Asset Management Excellence and their fundamental supply chain value proposition. This book works as a guide to all the stakeholders that influence the success of their Maintenance Parts Operation and their enterprise's bottom line. Maintenance Parts Management Excellence: A Holistic Anatomy defines the Maintenance Parts Managements role in Asset Management Excellence and expands on the importance of the Parts Inventory Planner role in an organization. It discusses how to create a unique Maintenance Parts Management Strategy for an organization and offers insights on the multiple strategies needed to create and maintain a Maintenance Parts inventory policy. The book also provides an organized overall approach to creating Maintenance Parts Management Excellence in an enterprise. Executives with an organization responsible for the construction, management, and disposal of all assets classes (plant, equipment, IT assets), consultants responsible for assignments associated with optimizing life cycle decisions for clients, maintenance, and reliability professionals within an organization, will benefit from this professional plus book. Upper-level undergraduate engineering students, as well as graduate students of management who focus on operations management and engineering graduate students addressing issues of maintenance and reliability engineering, may also be interested in this book.
Conservation tillage systems have been adopted by farmers in many countries to solve the problem of land degradation and declining water productivity. Direct application of such tillage systems has not been possible among resource-poor, smallholder farmers in semi-arid areas of Ethiopia. Problems such as the lack of rainfall, the costs of herbicides and implements, and the special cultivation needs of the crop tef, which can not be planted in rows, have developed locally-adapted conservation tillage systems. This book considers traditional tillage systems and the results of tests carried out on appropriate conservation tillage implements and systems for smallholder farmers in semi-arid regions of Ethiopia. The traditional tillage implement, the Maresha Plough, and the related tillage systems were identified as being the main cause of repeated and cross-ploughing, leading to land degradation and reduced water productivity. Modified implements were found to be suitable for conservation tillage systems while being simple, light and affordable. Two types of tillage systems developed for maize and tef were found to reduce surface runoff, increase availability of water to crops and increase yields.
A three volume set consisting of: Water Quality Monitoring: A practical guide to the design and implementation of freshwater quality studies and monitoring programmes Richard Balance & Jamie Bartram 9780419217305 July 1996 234x156mm 400pp Water quality monitoring is an essential tool in the management of water resources and this book comprehensively covers the entire monitoring operation. This important text is the outcome of a collborative programme of activity between UNEP and WHO with inputs from WMO and UNESCO and draws on the international standards of the International Organization of Standardization. Water Pollution Control: A Guide to the Use of Water Quality Management Principles Richard Helmer & Ivanildo Hespanhol 9780419229100 October 1997 234x156mm 520pp This is a handbook for policy makers and environmental managers in water authorities and engineering companies engaged in water quality programmes, especially in developing countries. It is also suitable for use as a textbook or as training material for water quality management courses. It is a companion volume to Water Quality Assessments and Water Quality Monitoring.Water Quality Assessments: A Guide to the Use of Biota, Sediments and Water in Environmental Monitoring Deborah V. Chapman 9780419216001 August 1996 234x156mm 650pp This guidebook, now thorougly updated and revised in its second edition, gives comprehensive advice on the designing and setting up of monitoring programmes for the purpose of providing valid data for water quality assessments in all types of freshwater bodies. It is clearly and concisely written in order to provide the essential information for all agencies and individuals responsible for water quality.
This new book offers an engineer's perspective on the history of
water technology and it's impact on the development of
civilisation.
When wastewater infiltrates into the soil, groundwater may be contaminated. If the distance from source of pollution to point of groundwater abstraction is small, there is a real chance of abstracting pathogenic microorganisms. In this book, the transport of Escherichia coli in aquifers under saturated conditions is studied. Starting point is the well known colloid filtration theory. Straining or physical sieving, geochemical heterogeneity, variable deposition rate coefficients, and preferential flow mechanisms are then included in the theory. The case of Sana'a, the capital of Yemen, served to evaluate the importance of bacteria transport processes in a field situation. This book is useful for hydrogeologists concerned with microbiological contamination of aquifers.
This book explores the role of law and policy in circular economy transitions and their impacts on justice, including on distributional equity and recognition and procedural rights, especially for people already marginalised under the current dominant economic system. Amid increasing demand for virgin raw materials, and unsustainable consumption and waste disposal that are driving the global ecological and climate crisis, there are growing calls to urgently transition to circular economies. Despite an increasing number of circular approaches being adopted, implemented, and integrated in national and local laws and policies, the number of commercially successful business stories remains isolated. Moreover, questions about whether circular economy laws and policies are delivering fair and just global outcomes need to be addressed. This book examines this significant knowledge gap to understand legal experiences, including justice and equity issues in the global context, so that these can inform wider design and implementation. The book begins by explaining the concept of a circular economy and its context within wider issues of sustainable development and justice. The first part of the book then examines the legal context of the circular economy by analysing legal forms in practice and those recommended in wider scholarship before considering how these could impact on existing inequity and injustices globally. The second part delivers an empirical understanding of the implications of the law on circular economy approaches and the global equity and justice dimensions through two case studies on solid waste management and forestry. The final part addresses legal opportunities and challenges for wider implementation of circular economy approaches that incorporate justice into its framing. This book will be of great interest to students, scholars, and practitioners of environmental and natural resource law and policy, circular economy, industrial ecology, natural resource management, and sustainable development more broadly.
* One of the first critiques of participatory design processes that are currently the fashion in design and business * highlights political, social and methodological obstacles when designers turn to design thinking, participation and "living labs" * uses global examples to introduce a more critical and post-colonial perspective on participation and social innovation throughout the book
The "greening" of industry processes, i.e. making them more sustainable, is a popular and often lucrative trend which has emerged over recent years. The 3rd volume of Green Chemical Processing considers sustainable chemistry in the context of corporate interests. The American Chemical Society's 12 Principles of Green Chemistry are woven throughout this text as well as the series to which this book belongs.
Fingerponds are earthen ponds dug at the edge of natural wetlands and stocked naturally with wild fish during flooding. They preserve the wetland environment in which they are situated while maintaining a productive culture system. In this study, the importance of organic manure applications in enhancing nutrient levels, phytoplankton and periphyton productivities and ultimately fish production was examined in experimental Fingerponds set up with the participation of local communities in Uganda. Results show that organic manures enhance algal development and fish production in Fingerponds, but close monitoring and control are needed. Fish yields in Fingerponds can be enhanced to 1500 - 2800 kg/ha over a functional period of 200 to 300 days using animal manure (e.g. chicken), fermented green manure and artificial substrates for periphyton development. Good management practices are required to regulate pond inputs and conditions. High clay turbidity, nitrogen limitation and high recruitment of fish can limit fish production. Overall, Fingerponds were shown to be an effective addition to protein production for poor riparian communities in East Africa and are recommended for adoption.
Pathogen removal mechanisms in macrophyte and algal-based waste stabilization ponds were studied in Ghana and Colombia. The macrophytes used were water lettuce (Pistia stratiotes) and duckweeds (Lemna paucicostata and Spirodela polyrhiza). The selection of the species was based on economic importance and availability. Lemna was used during the initial investigations. However, Lemna could not withstand the ammonia levels in the wastewater used. Spirodela polyrhiza a rarer species in Ghana was therefore used in subsequent studies. The main mechanisms considered in this study were pH, protozoa predation and surface attachment. The microorganisms used were faecal bacteria namely; Escherichia coli, other coliforms, Salmonella sp., other enterobacteria, E. coli, ATCC13706 and enterococci. Studies were conducted using batch scale, continuous flow bench and pilot scale ponds. Results indicated in order of importance that long retention periods, attachment, sedimentation, predation and low pH are mechanisms in macrophyte ponds enhancing faecal bacteria removal, while in the algal ponds long retention periods, sunlight penetration, high pH, attachment and sedimentation are the mechanisms of importance in faecal bacteria removal. Presence of protozoa was also found to be important but true grazing studies could not be quantified. Dissolved oxygen did not play a major role in faecal bacteria removal.
This book presents the results of research conducted between 2000 and 2004 on Lake Victoria (East Africa). The research examined the spatial spread of shoreline wetlands and found their distribution to be strongly influenced by the action of wind and waves. Evidence also pointed to a strong influence of wind-induced waves and currents on within-lake transport of surficial sediments. Paleolimnological reconstructions from bottom sediments confirmed earlier studies demonstrating the occurrence of eutrophication, and suggested that climate change was a co-driver of lake ecosystem change. It is argued that eutrophication could have led to destruction of a number of littoral plants species and has induced changes in fish populations. The study concludes by recommending the introduction of catchment management measures to reduce the export of nutrients to the lake. |
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