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.

Ground improvement has been one of the most dynamic and rapidly evolving areas of geotechnical engineering and construction over the past 40 years. The need to develop sites with marginal soils has made ground improvement an increasingly important core component of geotechnical engineering curricula. Fundamentals of Ground Improvement Engineering addresses the most effective and latest cutting-edge techniques for ground improvement. Key ground improvement methods are introduced that provide readers with a thorough understanding of the theory, design principles, and construction approaches that underpin each method. Major topics are compaction, permeation grouting, vibratory methods, soil mixing, stabilization and solidification, cutoff walls, dewatering, consolidation, geosynthetics, jet grouting, ground freezing, compaction grouting, and earth retention. The book is ideal for undergraduate and graduate-level university students, as well as practitioners seeking fundamental background in these techniques. The numerous problems, with worked examples, photographs, schematics, charts and graphs make it an excellent reference and teaching tool.

Understanding Risk to Wildlife from Exposures to Per- and Polyfluorinated Alkyl Substances (PFAS) provides the most recent summary of toxicity data relevant to mammals, birds, reptiles, and amphibians, and provides values for use in risk assessment applications. Predicting the bioaccumulation of PFAS in terrestrial wildlife (including humans) has proven to be extremely complex. As a group, PFAS act differently than traditional non-ionic organic molecules, where PFAS can break down and reform, whereas some are demonstrated to be extremely persistent. Where sufficient data are provided, this book establishes toxicity reference values (TRVs), which are derived to assist in characterizing environmental sources of contamination and making risk-based decisions. Features: Provides toxicity reference values (TRVs) for vertebrates (mammals, birds, amphibians) for PFAS, where sufficient data are available, and includes objective supporting background information. Assigns a level of confidence to each TRV to provide the risk assessor with an understanding of the relative uncertainty associated with each value. Presents toxicity data in the formats of scatter diagrams and tables for quick review and assessment. Provides TRVs relevant for screening and decision making This book serves as a useful aid for risk assessors and managers in those industries that have sites contaminated with PFAS, consultants tasked with evaluating risks at such sites, and staff at regulatory agencies at various governmental levels, who need to know how much contamination is considered safe for wildlife. It will also appeal to researchers with an interest in filling the gaps in the current toxicological data for PFAS exposure.

This informative volume provides comprehensive knowledge on various aspects of wastewater resource management from the point of process sustainability and resource recovery. This authoritative compendium is crucial for developing resource-efficient and sustainable wastewater treatment technologies and management strategies for both small (decentralized) and large (centralized) communities. Traditional wastewater systems have become increasingly energy-consuming and cost-intensive while also not meeting the increasing standards for nutrient removal and sustainable development. This book incorporates the latest developments in pollutant removal and resource recovery schemes in wastewater treatment. It highlights advances that have been made in microbiological processes; design of treatment methods; process configurations; energy conservation and efficiency improvement schemes; nutrient removal; recovery, reclamation, and recycling; beneficial uses of wastewater; and bioenergy and biochemical production from wastewater and sludge streams. Waste-to-energy technologies, especially wastewater treatment as a potential biofuel energy alternative through bioelectrochemical and other processes, are also discussed in this book.

Forever Chemicals: Environmental, Economic, and Social Equity Concerns with PFAS in the Environment provides the reader with an understanding of the complex and interwoven issues associated with per- and polyfluorinated substances (PFAS) in our environment. The chapters provide in-depth perspective into various issues, including health, regulation, detection, clean-up strategies and technologies, and more. Taken together or as the reader's interests lead them, the variety of topics covered in the book present a balanced perspective on this complex topic. It will address the current state of PFAS and where indicators are pointing for future developments. The book is also a deeper investigation of the regulatory challenges, analytical hurdles, and toxicological progress to date for the suite of PFAS chemicals. Features Explains the trends that will affect future policy and regulatory decisions Looks holistically at 4000+ PFAS chemicals Includes PFAS risk assessments at contaminated sites and biomonitoring insights Provides in-depth discussions on remediation technologies Illustrates quality and diversified content Provides a balanced perspective on this complex topic

Soft Clay Engineering and Ground Improvement covers the design and implementation of ground improvement techniques as applicable to soft clays. This particular subject poses major geotechnical challenges in civil engineering. Not only civil engineers, but planners, architects, consultants and contractors are now aware what soft soils are and the risks associated with development of such areas. The book is designed as a reference and useful tool for those in the industry, both to consultants and contractors. It also benefits researchers and academics working on ground improvement of soft soils, and serves as an excellent overview for postgraduates. University lecturers are beginning to incorporate more ground improvement topics into their curricula, and this text would be ideal for short courses for practicing engineers. It includes several examples to assist a newcomer to carry out preliminary designs. The three authors, each with dozens of years of experience, have witnessed and participated in the rapid evolvement of ground improvement in soft soils. In addition, top-tier professionals who deal with soft clays and ground improvement on a daily basis have contributed, providing their expertise in dealing with real-world problems and practical solutions.

Long-term success in scientific research requires skills that go well beyond technical prowess. Success and Creativity in Scientific Research: Amaze Your Friends and Surprise Yourself is based on a popular series of lectures the author has given to PhD students, postdoctoral researchers, and faculty at the Georgia Institute of Technology. Both entertaining and thought-provoking, this essential work supports advanced students and early career professionals across a variety of technical disciplines to thrive as successful and innovative researchers. Features: Discusses habits needed to find deep satisfaction in research, systematic and proven methods for generating good ideas, strategies for effective technical writing, and making compelling presentations Uses a conversational tone, making extensive use of anecdotes from scientific luminaries to engage readers Provides actionable methods to help readers achieve long-term career success Offers memorable examples to illustrate general principles Features topics relevant to researchers in all disciplines of science and engineering This book is aimed at students and early career professionals who want to achieve the satisfaction of performing creative and impactful research in any area of science or engineering.

Model Uncertainties in Foundation Design is unique in the compilation of the largest and the most diverse load test databases to date, covering many foundation types (shallow foundations, spudcans, driven piles, drilled shafts, rock sockets and helical piles) and a wide range of ground conditions (soil to soft rock). All databases with names prefixed by NUS are available upon request. This book presents a comprehensive evaluation of the model factor mean (bias) and coefficient of variation (COV) for ultimate and serviceability limit state based on these databases. These statistics can be used directly for AASHTO LRFD calibration. Besides load test databases, performance databases for other geo-structures and their model factor statistics are provided. Based on this extensive literature survey, a practical three-tier scheme for classifying the model uncertainty of geo-structures according to the model factor mean and COV is proposed. This empirically grounded scheme can underpin the calibration of resistance factors as a function of the degree of understanding - a concept already adopted in the Canadian Highway Bridge Design Code and being considered for the new draft for Eurocode 7 Part 1 (EN 1997-1:202x). The helical pile research in Chapter 7 was recognised by the 2020 ASCE Norman Medal.

Trace Elements in Abiotic and Biotic Environments helps readers understand the fundamental principles and phenomena that control the transfer of trace elements. This book describes the occurrence and behavior of trace elements in rocks, soil, water, air, and plants, and also discusses the anthropogenic impact to the environment. In addition, it covers the presence of trace elements in feeds, as either contaminants or as nutritional or zootechnical additives, and their transfer across the food chain to humans. Also discussed is international legislation on trace elements for both micronutrients and contaminants in soil and plant food. A special focus is placed on the human health effects of both trace element deficiency and excess. All trace elements are covered-from aluminum to zirconium-as well as rare-earth elements (actinides and lanthanides).

This book covers structural and foundation systems used in high-voltage transmission lines, conductors, insulators, hardware and component assembly. In most developing countries, the term "transmission structures" usually means lattice steel towers. The term actually includes a vast range of structural systems and configurations of various materials such as wood, steel, concrete and composites. This book discusses those systems along with associated topics such as structure functions and configurations, load cases for design, analysis techniques, structure and foundation modeling, design deliverables and latest advances in the field. In the foundations section, theories related to direct embedment, drilled shaf ts, spread foundations and anchors are discussed in detail. Featuring worked out design problems for students, the book is aimed at students, practicing engineers, researchers and academics. It contains beneficial information for those involved in the design and maintenance of transmission line structures and foundations. For those in academia, it will be an adequate text-book / design guide for graduate-level courses on the topic. Engineers and managers at utilities and electrical corporations will find the book a useful reference at work.

This practical and design-oriented book focuses on ground characterization and structural calculation, as part of the active structural design methodology. With a focus on rock tunnelling it offers a comprehensive rather than a topic-based perspective, deriving sound tunnel design criteria and methods from basic principles. Ground characterization includes excavations, site investigation, and in situ stress determination, culminating in geotechnical classifications. The book then deals with various construction methods and their appropriate calculations, which range from constitutive models for the stress-strain behaviour of an excavation and tunnel support elements to a full stress-strain analysis methodology. The heavily practical approach of the book draws on the authors' twenty years of tunnelling experience in Spain and South America. It will help any young or established professional who wants to develop a career in the underground field across both civil engineering and geology. As it incorporates the very fundamentals of tunneling design, it can be used as a support for tunneling courses or as a textbook for master's and PhD courses. Benjamin Celada was Chief Tunnel Engineer at Hunosa and Potasas de Navarra S.A. before founding Geocontrol S.A. He has also worked for twenty years as Professor of Underground Works at the Polytechnic Mining University in Madrid, Spain. Z. T. Bieniawski directed the Rock Mechanics Department of the Council for Scientific and Industrial Research in Pretoria, then taught at the Pennsylvania State University for twenty years.

After the Civil War, the New York City's East River was a massive unsolved and dangerous navigation problem. A major waterway into and out of the Harbor-where customs revenue equaled 42 percent of the U.S. Government's income-the river's many hindrances, centered around Hell Gate, included whirlpools, rocks and reefs. These, combined with swirling currents and powerful tides, led to deaths, cargo losses and destruction of vessels. Charged with clearing the river, General John Newton of the Army Corps of Engineers went to work with the most rudimentary tools for diving, mining, lighting, pumping and drilling. His crews worked for 20 years, using a steam-drilling scow of his own design and a new and perilous explosive--nitroglycerine. In 1885, Newton destroyed the nine-acre Flood Rock with 282,730 pounds of high explosives. The demolition was watched by tens of thousands. This book chronicles the clearing of the East River and the ingenuity of the Army engineer whose work was praised by the National Academy of Sciences.

The book is about the discovery of a Standard Specific Baseline Mass Transfer Coefficient (KLa0)20 that represents a revolutionary change in the understanding, designing, and operation of aeration equipment, as well as providing a baseline for future research and development for water and wastewater treatment systems. It discusses the use of the Standard Model for oxygen transfer to determine the baseline, and its major finding is to show that the gas transfer model is a consistent relativistic theory of molecular interactions. Previously, the challenge was the appearance of divergences in the mass transfer coefficient estimations that defies aeration design. This normalization to a baseline is a great achievement in physics and engineering.

Provides an understanding for the fundamental economic approaches to groundwater policy and project evaluation Incorporates cost-benefit analysis and life-cycle approaches in a triple-bottom line framework Includes new case studies on economics of groundwater data for decisionmaking Addresses local and regional groundwater economic choices through a series of practical applications Explains the economic value of groundwater recharge for sustainable use and needs

This book provides an invaluable update on the science and technology of plant fibre and its growing importance as a source material. The book presents a basic and clear understanding of the most advanced developments of a wide range of functional plant fibre materials. The development and utilisation of plant fibre resources are considered to be one of the strategies with most potential for reducing consumption of petrochemicals, whether for direct use to produce energy in place of oil, coal and gas, and chemicals or to develop new materials. The ready supply and low cost of these 'green' products and processes provide endless opportunities. The book considers structure, processing, properties, and applications with a comprehensive examination and discussion of the structure, chemistry and behaviour of plant fibre. This is followed by basic information and a thorough understanding of functional materials directly derived from plant fibres, mainly including nanocellulose, physically and chemically treated plant fibre, cellulose film, cellulose textile, cellulose detection materials, and nanocellulose aerogel. The processing, property and application of functional plant fibre composites is then considered, including nanocellulose composite, plant fibre/natural resin composite, wood plastic composites and long fibre composites.

Environmental engineers work to increase the level of health and happiness in the world by designing, building, and operating processes and systems for water treatment, water pollution control, air pollution control, and solid waste management. These projects compete for resources with projects in medicine, transportation, education, and other fields that have a similar objective. The challenge is to make the investments efficient - to get the best project outputs with a minimum of inputs. Cost Engineering for Pollution Prevention and Control examines how to identify the best solution by judging alternatives with respect to some measure of system performance, such as total capital cost, annual cost, annual net profit, return on investment, cost-benefit ratio, net present worth, minimum production time, maximum production rate, minimum energy utilization, and so on. Key Features: Explains how to estimate preliminary costs, how to compare the life cycle costs of alternative projects, how to find the optimal balance between capital costs and operating costs. Emphasis is placed on formulating the problem rather than on the mathematical details of how the calculations are done. Provides numerous practical examples and case studies. Includes end-of-chapter exercises dealing with water, wastewater, air pollution, solid wastes, and remediation projects. The important concepts presented in this book can be understood by those students who have taken an introductory course in environmental engineering. Advanced knowledge of process design is not required. The material can also be utilized by engineers, managers, and others who would benefit from a better understanding of how engineers look at problems.

Many economically developing countries and nations without robust occupational hygiene (OH) educational programs endure a shortage of qualified occupational hygienists, resulting in higher rates of workplace injury, illness, and fatality. Damage to valuable infrastructure, environment, and public health also occurs without adequate support. Improving Global Worker Health and Safety Through Collaborative Capacity Building Initiatives outlines a broad variety of capacity building projects in OH. It also introduces detailed experiences of occupational hygienists working abroad and working on special global topics including a discussion of how global trade agreements influence the practice and policy within OH. It describes the special needs of informal workers who do not have a "typical" employer and special challenges of creating university curricular guidelines for OH, building competency, and increasing capacity. This book also informs experienced professionals in international OH-capacity building initiatives and directions. Features: Presents the global impact and importance of occupational hygienists Outlines knowledge and collaboration through networking Provides case studies on real world situations and problems This text will be useful for professionals and graduate students in the fields of occupational health and safety and public health.

This book introduces readers to the shell structure, operating principle, manufacturing process, and control theory for cylindrical vibratory gyroscopes. The cylindrical vibratory gyroscope is an important type of Coriolis vibratory gyroscope that holds considerable potential for development and application. The main aspects addressed include: operating principle and structure, theoretical analysis and modeling, dynamic analysis and modeling, manufacturing process, parameter testing methods, closed-loop control, and the error compensation mechanism in cylindrical vibratory gyroscopes.

Maintaining bridges in good condition has extended service life and proven to be more cost effective than allowing degradation to advance, necessitating costlier bridge rehabilitation or replacement projects. Preventive maintenance is therefore an important tool to retard deterioration and sustain the safe operation of bridges. This includes a continuous effort of periodic inspections, condition evaluations and prioritizing repairs accordingly. The above measures define the framework for asset management of bridges. On August 21-22, 2017, bridge engineering experts from around the world convened at the 9th New York City Bridge Conference to discuss issues of construction, design, inspection, monitoring, preservation and rehabilitation of bridge structures. This volume documents their contributions to the safe operation of bridge assets.

Handbook of Project Finance for Water and Wastewater Systems provides an easy-to-read guide for gaining an understanding of the myriad options available for financing water and wastewater projects and how to evaluate which options are most appropriate. This crucial reference delineates a basic system for comparing the actual costs of various programs. The book describes the seven major factors that can dramatically affect user charges. It then analyzes each funding alternative in terms of these common cost factors. No other book provides such an understandable framework for comparing project costs and their ultimate impact on ratepayer charges. Handbook of Project Finance for Water and Wastewater Systems is an essential book for utility managers, consultants, engineers, regulators, environmental attorneys, and planners. Features Addresses the seven major factors that affect project costs Easy to read Presents easily comparable options

The field of rock mechanics and rock engineering utilizes the basic laws of continuum mechanics and the techniques developed in computational mechanics. This book describes the basic concepts behind these fundamental laws and their utilization in practice irrespective of whether rock/rock mass contains discontinuities. This book consists of nine chapters and six appendices. The first four chapters are concerned with continuum mechanics aspects, which include the basic operations, definition of stress and strain tensors, and derivation of four fundamental conservation laws in the simplest yet precise manner. The next two chapters are the preparation for computational mechanics, which require constitutive laws of geomaterials relevant to each conservation law and the procedures for how to determine required parameters of the constitutive laws. Computational mechanics solves the resulting ordinary and partial differential equations. In Chapter 7, the methods of exact (closed-form) solutions are explained and they are applied to ordinary/partial differential equations with solvable boundary and initial conditions. In Chapter 8, the fundamentals of approximate solution methods are explained for one dimension first and then how to extend them to multi-dimensional problems. The readers are expected to learn and clearly understand how they are derived and applied to various problems in geomechanics. The final chapter involves the applications of the approximate methods to the actual problems in practice for geomechanical engineers, which cover the continuum to discontinuum, including the stress state of the earth as well as the ground motions induced by earthquakes. Six appendices are provided to have a clear understanding of continuum mechanics operations and procedures for how to deal with discontinuities/interfaces often encountered in rock mechanics and rock engineering.

This book, on the basis of a generalization and critical analysis of materials on constructed concrete dams, accumulated experience in their operation, and current trends, considers a set of problems associated with the design and construction of concrete dams. The modern principles of designing gravity and arch dams and the main provisions of the calculation justification of their reliability in comparison with US standards are outlined. Great attention has been paid to rolled concrete dams, taking into account their specific characteristics. Ways of increasing the efficiency of dams through the improvement of layout and structural solutions, calculation methods, and a more complete consideration of the features of natural conditions are considered. The book presents and analyzes the designs of erected concrete dams, which allows for a better understanding of the approaches and decision-making principles for designing dams, taking into account the specifics of natural, construction, and other conditions, and also analyzes a number of new solutions that reflect the various ways that engineering theory and practice has sought further improvement of concrete dams. This work will be useful to hydraulic engineers and professionals involved in the design, construction, and operation of concrete dams, as well as in settlement studies. The book will also be of interest to academics and can be used as a textbook by university students specializing in hydraulic engineering.

This volume presents selected papers presented during the First Asian Conference on Indoor Environmental Quality (ACIEQ). The contents cover themes of indoor air quality monitoring and modeling; the influence of confounding factors like thermal comfort parameters, such as temperature and relative humidity with respect to different building types, e.g., residential, commercial, institutional; ventilation characteristics, lighting and acoustics. It also focuses on people's performance, productivity, and behavior with respect to their exposure to various indoor air pollutants and parameters influencing the overall indoor environmental quality. This volume is primarily aimed at researchers working in environmental science and engineering, building architecture and design, HVAC and ventilation, public health, and epidemiology. The contents of this volume will also be useful to policy makers working on occupational health and building codes.

This book provides an understanding of peer-reviewed international construction materials and their testing methods in a simplified manner at a high technical level. It focuses on specific construction materials, such as cement, concrete, bricks, lime, paints, steel and so forth, distributed in ten different chapters. Using real-time quality control as the underlying determinant, the book material exclusively follows Indian, American, European, German and South African standards. Relevant modern sophisticated material testing techniques, like scanning electron microscope (SEM), thermo gravimetric analysis (TGA) and X-Ray diffraction (XRD), are also described. Aimed at undergraduate, senior undergraduate and early career professionals in civil engineering and construction engineering, this book Gives a clear background of material testing and its importance Includes step-by-step procedures for easy understanding of and for performing the tests Covers Indian, ASTM, South African, DIN German and European Standards Includes basic and advanced techniques for chemical admixtures Each chapter concludes with practice questions, including 400+ solved questions and 50+ test procedures in total

The theory of water waves is most varied and is a fascinating topic. It includes a wide range of natural phenomena in oceans, rivers, and lakes. It is mostly concerned with elucidation of some general aspects of wave motion including the prediction of behaviour of waves in the presence of obstacles of some special configurations that are of interest to ocean engineers. Unfortunately, even the apparently simple problems appear to be difficult to tackle mathematically unless some simplified assumptions are made. Fortunately, one can assume water to be an incompressible, in viscid and homogeneous fluid. The linearised theory of water waves is based on the assumption that the amplitude of the motion is small compared to the wave length. If rotational motion is assumed, then the linearised theory of water waves is essentially concerned with solving the Laplace equation in the water region together with linearised boundary condition. There are varied classes of problems that have been/are being studied mathematically in the literature within the framework of linearised theory of water waves for last many years. Scattering by obstacles of various geometrical configurations is one such class of water wave problems. This book is devoted to advanced mathematical work related to water wave scattering. Emphasis is laid on the mathematical and computational techniques required to study these problems mathematically. The book contains nine chapters. The first chapter is introductory in nature. It includes the basic equations of linearised theory for a single layer fluid, a two-layer fluid, solution of dispersion equations, and a general idea on scattering problems and the energy identity in water with a free surface. Chapter 2 is concerned with wave scattering involving thin rigid plates of various geometrical configurations, namely, plane vertical barriers or curved barriers, inclined barriers, horizontal barrier, and also thin elastic vertical plate. For the horizontal case, the barrier is submerged below an ice-cover modelled as a thin elastic plate floating on water. Chapter 3 discusses wave scattering by a rectangular trench by using Galerkin technique. Chapter 4 involves wave scattering by a dock by using Carleman singular integral equation followed by reduction to Riemann-Hilbert problems. Chapter 5 involves several wave scattering problems involving discontinuities at the upper surface of water by using the Wiener-Hopf technique, by reduction to Carleman singular integral equations. Chapter 6 considers scattering by a long horizontal circular cylinder either half immersed or completely submerged. In chapter 7, some important energy identities are derived for scattering problems in a single-layer and also in a two-layer fluid. Chapter 8 is concerned with wave scattering in a two-layer fluid by a thin vertical plate and by a long horizontal circular cylinder submerged in either of the two layers. Chapter 9 is the final chapter which considers a number of wave scattering problems in a single-layer or a two-layer fluid with variable bottom topography by using a simplified perturbation analysis It is hoped that this book will be useful to researchers on water waves. The several wave scattering problems presented in the book are mostly based on the research work carried out by the authors and their associates.