Foreword

The revised, expanded, and updated edition of the Environmental Engineers' Handbook covers in depth the interrelated factors and principles which affect our environment and how we have dealt with them in the past, how we are dealing with them today, and how we might deal with them in the future. Although the product is clearly aimed at the environmental professional, it is written and structured in a way that will allow others outside the field to educate themselves about our environment, and what can and must be done to continue to improve the quality of life on spaceship earth. Environmental Engineers' Handbook CRCnetBASE 1999 covers in detail the ongoing global transition among the cleanup of the remains of abandoned technology, the prevention of pollution from existing technology, and the design of future zero emission technology. The relationship of cost to benefit is examined and emphasized throughout the product The Preface will remind the reader of Charles Dickens' famous A Christmas Carol, and we should reflect on its implications carefully as we try to decide the cost-to-benefit ratio of environmental control technology. Following the Preface, Environmental Engineers' Handbook CRCnetBASE 1999 begins with a thorough review of environmental law and regulations that are then further detailed in individual chapters. The chapter on environmental impact assessment is the bridge between the release of pollutants and the technology necessary to reduce the impact of these emissions on the global ecosystem. Chapters on the source control and/or prevention of formation of specific pollutants in air, water, land, and our personal environment follow these introductory chapters. A chapter on solid waste is followed by the final chapter on hazardous waste, which tries to strike a balance between the danger of hazardous wastes and the low probability that a dangerous environmental event will occur because of these wastes.

The type of information contained in every chapter is designed to be uniform, although there is no unified format that each chapter follows, because subject matter varies so widely. The user can always count on finding both introductory material and very specific technical answers to complex questions. In those chapters where it is relevant, in-depth technical information on the technology and specific equipment used in environmental control and cleanup will be found. Since analytical results are an intricate part of any environmental study, the user will find ample sections covering the wide variety of analytical methods and equipment used in environmental analysis. Several chapters have extensive sections where the derivation of the mathematical equations used are included. Textual explanations usually also accompany these mathematical-based sections.

A great deal of effort has gone into providing as much information as possible in easy-to-use tables and figures. We have chosen to use schematic diagrams rather than actual pictures of equipment, devices, or landscapes to explain or illustrate technology and techniques used in various areas. The bulk of material is testimony to the level of detail that has been included in order to make this a single-source handbook. The user will also find ample references if additional information is required. The author of a section is given at the end of each section and we encourage users to contact the author directly with any questions or comments. Although extensive review and proofreading of the manuscript was done, we ask users who find errors or omissions to bring them to our attention.

Finally, we wish to acknowledge the numerous individuals and organizations who either directly or indirectly have contributed to this work, yet have not been mentioned by name.

Paul A. Bouis

Bethlehem, Pennsylvania

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