Complex environmental problems are often reduced to an inappropriate level of simplicity. While this book does not seek to present a comprehensive scientific and technical coverage of all aspects of the subject matter, it makes the issues, ideas, and language of environmental engineering accessible and understandable to the nontechnical reader. Improvements introduced in the fourth edition include a complete rewrite of the chapters dealing with risk assessment and ethics, the introduction of new theories of radiation damage, inclusion of environmental disasters like Chernobyl and Bhopal, and general updating of all the content, specifically that on radioactive waste. Since this book was first published in 1972, several generations of students have become environmentally aware and conscious of their responsibilities to the planet earth. Many of these environmental pioneers are now teaching in colleges and universities, and have in their classes students with the same sense of dedication and resolve that they themselves brought to the discipline. In those days, it was sometimes difficult to explain what indeed environmental science or engineering was, and why the development of these fields was so important to the future of the earth and to human civilization. Today there is no question that the human species has the capability of destroying its collective home, and that we have indeed taken major steps toward doing exactly that. And yet, while, a lot has changed in a generation, much has not. We still have air pollution; we still contaminate our water supplies; we still dispose of hazardous materials improperly; we still destroy natural habitats as if no other species mattered. And worst of all, we still continue to populate the earth at an alarming rate. There is still a need for this book, and for the college and university courses that use it as a text, and perhaps this need is more acute now than it was several decades ago. Although the battle to preserve the environment is still raging, some of the rules have changed. We now must take into account risk to humans, and be able to manipulate concepts of risk management. With increasing population, and fewer alternatives to waste disposal, this problem is intensified. Environmental laws have changed, and will no doubt continue to evolve. Attitudes toward the environment are often couched in what has become known as the environmental ethic. Finally, the environmental movement has become powerful politically, and environmentalism can be made to serve a political agenda. In revising this book, we have attempted to incorporate the evolving nature of environmental sciences and engineering by adding chapters as necessary and eliminating material that is less germane to today's students. We have nevertheless maintained the essential feature of this book -- to package the more important aspects of environmental engineering science and technology in an organized manner and present this mainly technical material to a nonengineering audience. This book has been used as a text in courses which require no prerequisites, although a high school knowledge of chemistry is important. A knowledge of college level algebra is also useful, but calculus is not required for the understanding of the technical and scientific concepts. We do not intend for this book to be scientifically and technically complete. In fact, many complex environmental problems have been simplified to the threshold of pain for many engineers and scientists. Our objective, however, is not to impress nontechnical students with the rigors and complexities of pollution control technology but rather to make some of the language and ideas of environmental engineering and science more understandable.

Environmental Pollution and Control

P. Aarne Vesilind

J. Jeffrey Peirce

Ruth F. Weiner

Butterworth-Heinemann

Complex environmental problems are often reduced to an inappropriate level of simplicity. While this book does not seek to present a comprehensive scientific and technical coverage of all aspects of the subject matter, it makes the issues, ideas, and language of environmental engineering accessible and understandable to the nontechnical reader.Improvements introduced in the fourth edition include a complete rewrite of the chapters dealing with risk assessment and ethics, the introduction of new theories of radiation damage, inclusion of environmental disasters like Chernobyl and Bhopal, and general updating of all the content, specifically that on radioactive waste.Since this book was first published in 1972, several generations of students have become environmentally aware and conscious of their responsibilities to the planet earth. Many of these environmental pioneers are now teaching in colleges and universities, and have in their classes students with the same sense of dedication and resolve that they themselves brought to the discipline. In those days, it was sometimes difficult to explain what indeed environmental science or engineering was, and why the development of these fields was so important to the future of the earth and to human civilization. Today there is no question that the human species has the capability of destroying its collective home, and that we have indeed taken major steps toward doing exactly that.And yet, while, a lot has changed in a generation, much has not. We still have air pollution; we still contaminate our water supplies; we still dispose of hazardous materials improperly; we still destroy natural habitats as if no other species mattered. And worst of all, we still continue to populate the earth at an alarming rate. There is still a need for this book, and for the college and university courses that use it as a text, and perhaps this need is more acute now than it was several decades ago. Although the battle to preserve the environment is still raging, some of the rules have changed. We now must take into account risk to humans, and be able to manipulate concepts of risk management. With increasing population, and fewer alternatives to waste disposal, this problem is intensified. Environmental laws have changed, and will no doubt continue to evolve. Attitudes toward the environment are often couched in what has become known as the environmental ethic. Finally, the environmental movement has become powerful politically, and environmentalism can be made to serve a political agenda.In revising this book, we have attempted to incorporate the evolving nature of environmental sciences and engineering by adding chapters as necessary and eliminating material that is less germane to today's students. We have nevertheless maintained the essential feature of this book -- to package the more important aspects of environmental engineering science and technology in an organized manner and present this mainly technical material to a nonengineering audience.This book has been used as a text in courses which require no prerequisites, although a high school knowledge of chemistry is important. A knowledge of college level algebra is also useful, but calculus is not required for the understanding of the technical and scientific concepts.We do not intend for this book to be scientifically and technically complete. In fact, many complex environmental problems have been simplified to the threshold of pain for many engineers and scientists. Our objective, however, is not to impress nontechnical students with the rigors and complexities of pollution control technology but rather to make some of the language and ideas of environmental engineering and science more understandable.An introduction to the more important aspects of environmental science and technology.Well organized and suitable for both the technical and non-technical reader.Ideal for the student taking courses in this field who does not have an extensive engineering, mathematical, or environmental background.

Environmental pollution and control

Ann Arbor Science Publishers

High Technology: A Failure Analysis (Design and Management for Resource Recovery, Vol. 2)

Engineering & Transportation

Brenda Harrison

Engineering

Ann Arbor Science

This is a comprehensive guide for graduates from any academic discipline who want to pursue an academic career. The author covers a wide range of skills for future success including teaching, testing and maintaining a research programme.'

So You Want to Be a Professor?: A Handbook for Graduate Students

Education & Teaching

Higher & Continuing Education

Sage Publications (CA)

P. Aarne Vesilind, Gerald C. Hartman, Elizabeth T. Skene

Sludge Management and Disposal for the Practicing Engineer

Gerald C. Hartman

Elizabeth T. Skene

CRC-Press

This book began as an in-house document at a major environmental consulting firm. It has been modified and up-dated to make it equally applicable as a short handbook for students in environmental engineering and science courses.

Report Writing for Environmental Engineers and Scientists

James G. Smith

Reference

Lakeshore Press

While engineering has historically provided tools necessary for defending our country and freedom throughout the world, is it also possible that engineers have a central role in the promotion of peace,a peace that might make such war unnecessary? That is, can engineers use their education and skills to proactively encourage peace in our world to practice peace engineering? Is the accumulation of technical skill enough for engineers to be effective in practicing peace engineering, or do they need social, political, communication, ethical, and legal skills as well? How can engineering educators respond to the challenges of preparing engineers to practice peace engineering? Finally, what opportunities are there for engineers wanting to work proactively in the promotion of peace? This book is a compilation of papers devoted to defining and promoting peace engineering, originating at a conference held at Bucknell University.

Peace Engineering: When Personal Values and Engineering Careers Converge

Normal wear and tear from moderate use. May not include supplements.

The Right Thing to Do,an Ethics Guide for Engineering Students

Introduction to Environmental Engineering

Cengage Learning US

Presents and explains the theory of sludge treatment Covers US and European disposal regulations and practices
 Intended for advanced students and practitioners of wastewater engineering, this text offers the theory and quantitative rationale for treating wastewater and industrial sludges , with public safety and efficiency in mind. The authors bring both an instructional and engineering background to the subject of sludge, presenting the necessary calculations as well as clearly explained design alternatives for each process in sludge handling. The authors are fully attuned to the controversies surrounding sludge disposal and carefully lay out US and European regulations that govern current technologies. The book offers important information on emerging practices for safe and legal sludge disposal. Numerous case studies and sample problems are included.
 Partial List of Content:CHAPTER 1: SLUDGE SOURCES, QUANTITIES, AND MANAGEMENT 1.1 Sludge Sources 1.2 Sludge Quantities 1.3 Rationale of Sludge Management in a Wastewater Treatment Plant 1.4 Sludge Disposal: Laws and Regulations 1.5 Sludge Disposal: Sustainability 1.6 Conclusions 1.7 References 1.8 Problems CHAPTER 2: SLUDGE CHARACTERISTICS 2.1 Physical Characteristics of Sludge 2.2 Chemical Characteristics of Sludge 2.3 Biological Characteristics of Sludge 2.4 Conclusions 2.5 References 2.6 Problems CHAPTER 3: SLUDGE STABILIZATION 3.1 Stability Parameters 3.2 Biological Stabilization of Sludge 3.3 Chemical Stabilization 3.4 Physical Stabilization 3.5 Conclusions 3.6 References 3.7 Problems CHAPTER 4: SLUDGE PUMPING AND CONVEYING 4.1 Liquid Sludge Pumping 4.2 Dewatered Sludge Pumping and Conveying 4.3 Dried Sludge Conveying 4.4 In-line Measurement of Sludge Density 4.5 References 4.6 Problems CHAPTER 5: SLUDGE THICKENING 5.1 Gravitational Thickening 5.2 Flotation Thickening 5.3 Gravity Belt Thickening 5.4 Other Methods of Thickening 5.5 Conclusions 5.6 References 5.7 Problems CHAPTER 6: SLUDGE DEWATERING 6.1 Sand Beds 6.2 Lagoons 6.3 Wedge Wire Beds 6.4 Freezing Beds 6.5 Vacuum Filters 6.6 Filter Presses 6.7 Belt Filters 6.8 Centrifuges 6.9 Limits of Dewatering 6.10 Conclusions 6.11 References 6.12 Problems CHAPTER 7: SLUDGE CONDITIONING 7.1 Chemical Conditioning 7.2 Heat Conditioning 7.3 Elutriation 7.4 Freeze-Thaw Conditioning 7.5 Bulking Materials 7.6 Conclusions 7.7 References 7.8 Problems CHAPTER 8: SLUDGE DRYING AND COMBUSTION 8.1 Sludge Drying 8.2 Sludge Combustion 8.3 Alternative Thermal Technologies 8.4 Conclusions 8.5 References 8.6 Problems CHAPTER 9: CHEMICAL SLUDGES 9.1 Chemical Treatment of Wastewater 303 9.2 Alum Sludge from Water Treatment Plants 305 9.3 Iron Sludges from Wastewater Treatment Plants 308 9.4 Lime and Water Softening Sludges 309 9.5 Metal Hydroxides 314 9.5 Ultimate Disposal of Industrial Sludges 315 9.6 Conclusions 316 9.7 References 317 9.8 Problems 317 CHAPTER 10: LAND DISPOSAL OF SLUDGE AS BIOSOLIDS 10.1 Benefits of Sludge Disposal on Land 10.2 Land Application of Biosolids 10.3 Calculating Land Area Requirements for Biosolids 10.4 Application Methods for Liquid and Dewatered Biosolids 10.5 Conclusions 10.6 References 10.7 Problems CHAPTER 11: OTHER OPTIONS FOR SLUDGE DISPOSAL AND BENEFICIAL USE 11.1 Pyrolysis and Gasification 11.2 Oil from Sludge 11.3 Building Materials from Sludge 11.4 Deep Well Injection 11.5 Disposal into the Marine Environment 11.6 Disposal of Sludge into Landfills 11.7 Conclusions 11.8 References 11.9 Problems CHAPTER 12: REGULATIONS GOVERNING SLUDGE DISPOSAL 12.1 Regulations Governing Sludge Disposal on Land in the United States 12.2 Review of Regulations and Potential Health Concerns with Sludge Land Application 12.3 Future Trends in Land Application Regulations 12.4 Regulations in E

Sludge Engineering: The Treatment and Disposal of Wastewater Sludges

Science & Math

PH.D.

F. Dilek Sanin

William W. Clarkson

Nature & Ecology

DEStech Publications, Inc.

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