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Klappentext The past few years have seen the emergence of a growing, widespread desire in this country, and indeed everywhere, that positive actions be taken to restore the quality of our environment, and to protect it from the degrading effects of all forms of pollution-air, noise, solid waste, and water. Since pollution is a direct or" indirect consequence of waste, if there is no waste, there can be no pollution, and the seemingly idealistic demand for" zero discharge" can be construed as a demand for zero waste. However, as long as there is waste, we can only attempt to abate the consequent pollution by converting it to a less noxious form. In those instances in which a particular type of pollution has been recognized, three major questions usually arise: 1, How serious is the pollution? 2, Is the technology to abate it available? and 3, Do the costs of abatement justify the degree of abatement achieved? The principal intention of this series of books is to help the reader to formulate answers to the last two of the above three questions. The traditional approach of applying tried-and-true solutions to specific pollution problems has been a major factor contributing to the success of environmental engineering, and in large measure has accounted for the establishing of a "methodology of pollution control. Inhaltsverzeichnis I Air Pollution Control.- 1 Introduction to Air Pollution.- I. Introduction.- II. Characteristics of Air Pollutants.- III. Standards.- A. Ambient Air Quality Standards.- B. Emission Standards.- IV. Sources.- V. Effects.- VI. Measurement.- A. Ambient Sampling.- B. Source Sampling.- C. Sample Locations.- D. Gas Flow Rates.- E. Relative Humidity.- F. Sample Trains.- G. Size Distribution Determination.- VII. Control.- VIII. Conclusions.- References.- 2 Fabric Filtration.- I. Introduction.- II. Principle and Theory.- III. Application.- A. General.- B. Gas Cleaning.- C. Efficiency.- D. Some Operational Variables.- IV. Economics.- V. Example Problem.- Nomenclature.- References.- 3 Cyclones.- I. Introduction.- II. Performance Characteristics.- A. Types.- B. Standard Designs.- C. Areas of Application.- III. Performance Modeling.- A. Flow Pattern.- B. Pressure Drop.- C. Efficiency.- D. Other Performance Variables.- E. Overall Efficiency on Polydisperse Dust.- IV. Cyclone Design.- A. Necessary Design Information.- B. Cyclone Specification.- C. Design Example.- D. Other Design Considerations.- Nomenclature.- References.- 4 Electrostatic Precipitation.- I. Introduction.- II. Principles of Operation.- A. Corona Discharge.- B. Electrical Field Characteristics.- C. Particle Charging.- D. Particle Collection.- III. Design Methodology and Considerations.- A. Precipitator Size.- B. Electrode Systems.- C. Power Requirements.- D. Gas Flow Systems.- E. Precipitator Housing.- F. Removal of Collected Particles.- G. Instrumentation.- IV. Applications.- V. Problems and Corrections.- A. Fundamental Problems.- B. Mechanical Problems.- C. Operational Problems.- D. Chemical Problems.- VI. Costs.- A. Installation.- B. Operation and Maintenance.- C. Total Cost or Unit Cost.- VII. Expected Future Developments.- Nomenclature.- References.- 5 Wet Scrubbing.- I. Introduction.- II. Fundamental Concepts.- A. Mass Transfer.- B. Particle Collection.- III. Linking Fundamentals to Design Approaches.- A. Transfer Unit Method.- B. Energy Dissipation (or Power) Density.- C. Contacting Power Concept for Particle Removal.- D. Unit Mechanisms.- IV. Scrubber Types, Their Selection and Efficiency.- A. Types.- B. Selection.- C. Efficiency.- V. Design Parameters.- A. Plate Scrubbers.- B. Packed Towers: Fixed-Bed Packing.- C. Packed Towers: Mobile-Bed Packing.- D. Packed Towers: Fibrous Packing.- E. Preformed Sprays.- F. Gas-Atomized Sprays.- G. Centrifugal Devices.- H. Baffle Scrubbers.- VI. Auxiliary and Ancillary Equipment; Disposal of Wastes.- A. Gas Moving.- B. Liquid Moving.- C. Liquid Recycle.- D. Liquid Disposal.- E. Sampling ...
List of contents
I Air Pollution Control.- 1 Introduction to Air Pollution.- 2 Fabric Filtration.- 3 Cyclones.- 4 Electrostatic Precipitation.- 5 Wet Scrubbing.- 6 Atmospheric Dilution.- 7 Ventilation And Air Conditioning.- 8 Other Air Pollution Control Techniques.- II Noise Pollution Control.- 9 Introduction to Noise Pollution.- 10 Noise Control.
