Sewer processes : microbial and chemical process engineering of sewer networks

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Searching... PSZ JB	30000004803874	TD736 H85 2002	Open Access Book	Book	Searching... Unknown
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Searching... SPACE KL Main Library	30000010077155	TD736 H85 2002	Open Access Book	Book	Searching... Unknown

Sewer Processes: Microbial and Chemical Process Engineering of Sewer Networks concentrates on process engineering of sewer networks from a chemical and microbiological point of view to be applied by sanitary and environmental engineers, and students. By considering the sewer as a chemical and biological reactor, the book extends beyond traditional hydraulics and pollutant transport to explain how in-sewer processes can be applied to managing, operating, and designing sewer networks. By understanding this concept and the data it generates, new modeling tools and design parameters can be developed that will assist engineers in reducing microbial and chemical pollution.

The book establishes sewer processes as an integral part of managing, designing, and operating an urban wastewater system. It presents in-sewer processes from a fundamental and conceptual point of view for easy understanding by students. Both engineers and students will find the book's models and practical examples useful. It demonstrates a range of sewer and treatment issues, such as odor control, corrosion, and integrated wastewater treatment. It also explains how environmental process engineering principles can be applied to sewer design, resulting in better wastewater treatment and cleaner water entering receiving areas.

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Microbial and chemical transformations occur in sewers as wastewater moves from homes to treatment plants in either sanitary sewer networks, where inputs are limited to wastewater releases, or in combined sewer systems, where wastewater from homes flows in the same sewers as the storm water from rain. Hvitved-Jacobsen (Aalborg Univ., Denmark) describes scientifically the aerobic and anaerobic microbial processes that take place in sewers. Important transport processes such as oxygen transfer and release of odors are included. The sewer processes are treated as a multiphase process by considering the gas phase above the liquid as well as the solid phase or biofilm below the liquid. This book can be used as a resource for environmental engineering courses; it will also be very useful to those who design, manage, and service sewer systems. The book differs from other books on sewer systems in that it includes a process dimension by considering the sewer as a chemical and biological reactor. Appropriate chapter references. General readers; upper-division undergraduates through professionals; two-year technical program students. L. E. Erickson Kansas State University

Preface	p. ix
Chapter 1. Sewer Systems and Processes	p. 1
1.1 Introduction and Purpose	p. 1
1.2 Sewer Developments in a Historical Perspective	p. 4
1.3 Types and Performance of Sewer Networks	p. 5
1.4 The Sewer as a Reactor for Microbial Processes	p. 7
1.5 A New Approach	p. 9
Chapter 2. Chemical and Physicochemical Aspects of In-Sewer Processes	p. 11
2.1 Redox Reactions	p. 11
2.2 Chemical Kinetics in a Microbiological System	p. 25
2.3 References	p. 36
Chapter 3. Wastewater in Sewers--Substrates and Microbiology	p. 37
3.1 Quality of Wastewater	p. 37
3.2 Microbial Reactions and Quality of Substrate	p. 40
3.3 References	p. 63
Chapter 4. Air-Water Equilibrium and Mass Transfer--Odors and Reaeration in Sewers	p. 65
4.1 Air-Water Equilibrium Conditions	p. 66
4.2 Air-Water Transport Processes	p. 73
4.3 Odorous Compounds in Sewer Networks	p. 77
4.4 Reaeration in Sewer Networks	p. 85
4.5 References	p. 91
Chapter 5. Aerobic and Anoxic Processes--Process Concept and Model	p. 95
5.1 Illustration of Aerobic Transformations in Sewers	p. 96
5.2 A Concept for the Aerobic Microbial Transformations of Wastewater in Sewers	p. 99
5.3 Process Descriptions	p. 106
5.4 Sewer Process Model	p. 112
5.5 Oxygen Mass Balance and Modeling in Sewers	p. 115
5.6 Anoxic Transformations in Sewers	p. 121
5.7 References	p. 125
Chapter 6. Anaerobic Processes--Sulfide Formation and Integrated Modeling	p. 129
6.1 Hydrogen Sulfide in Sewers--A Historical Overview	p. 129
6.2 Hydrodgen Sulfide in Sewer Networks	p. 131
6.3 Anaerobic Microbial Transformations of Organic Matter in Sewers	p. 158
6.4 An Integrated Aerobic-Anaerobic Model Concept for Microbial Wastewater Transformations	p. 160
6.5 References	p. 166
Chapter 7. Methods for Sewer Process Studies and Model Calibration	p. 171
7.1 Methods for Field-, Pilot-, and Bench-Scale Studies	p. 171
7.2 Methods for Determination of Components and Parameters for Sewer Process Modeling	p. 181
7.3 Final Remarks	p. 200
7.4 References	p. 201
Chapter 8. Applications--Integrated Process Design and Operation of Sewers	p. 205
8.1 Wastewater Design--An Integrated Approach for Wastewater Treatment	p. 205
8.2 Structural and Operational Impacts on Wastewater Quality Transformations in Sewers	p. 206
8.3 Tools for Prediction of Sewer Processes	p. 211
8.4 Model Simulations of Sewer and Treatment Plant Interactions	p. 214
8.5 Sewer Processes in an Integrated and Sustainable Perspective	p. 223
8.6 References	p. 227
Appendix A Nomenclature	p. 229
Index	p. 233
About the Author	p. 237

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