Biological Wastewater Treatment

Introduction and Background
Classification of Biochemical Operations
The Role of Biochemical Operations
Criteria for Classification
Common “Named” Biochemical Operations
Key Points
Study Questions
References

Fundamentals of Biochemical Operations
Overview of Biochemical Operations
Major Types of Microorganisms and Their Roles
Microbial Ecosystems in Biochemical Operations
Important Processes in Biochemical Operations
Key Points
Study Questions
References

Stoichiometry and Kinetics of Aerobic/Anoxic Biochemical Operations
Stoichiometry and Generalized Reaction Rate
Biomass Growth and Substrate Utilization
Soluble Microbial Product Formation
Solubilization of Particulate and High Molecular Weight Organic Matter
Ammonification and Ammonia Utilization
Phosphorus Uptake and Release
Simplified Stoichiometry and Its Use
Effects of Temperature
Key Points
Study Questions
References

Theory: Modeling of Ideal Suspended Growth Reactors
Modeling Suspended Growth Systems
Modeling Microbial Systems
Mass Balance Equation
Reactor Types
Modeling Nonideal Reactors
Key Points
Study Questions
References

Aerobic Growth of Heterotrophs in a Single Continuous Stirred Tank Reactor Receiving Soluble Substrate
Basic Model for a Continuous Stirred Tank Reactor
Extensions of the Basic Model
Effects of Kinetic Parameters
Biomass Wastage and Recycle
Key Points
Study Questions
References

Multiple Microbial Activities in a Single Continuous Stirred Tank Reactor
International Water Association Activated Sludge Models
Effect of Particulate Substrate
Nitrification and Its Impacts
Denitrification and Its Impacts
Multiple Events
Key Points
Study Questions
References

Multiple Microbial Activities in Complex Systems
Modeling Complex Systems
Conventional and High Purity Oxygen Activated Sludge
Step Feed Activated Sludge
Contact Stabilization Activated Sludge
Modified Ludzack–Ettinger Process
Four-Stage Bardenpho Process
Biological Phosphorus Removal Process
Sequencing Batch Reactor
Key Points
Study Questions
References

Stoichiometry, Kinetics, and Simulations of Anaerobic Biochemical Operations
Stoichiometry of Anaerobic Biochemical Operations
Kinetics of Anaerobic Biochemical Operations
Anaerobic Digestion Model No. 1
Key Points
Study Questions
References

Techniques for Evaluating Kinetic and Stoichiometric Parameters
Treatability Studies
Simple Soluble Substrate Model with Traditional Decay as Presented in Chapter 5
Simple Soluble Substrate Model with Traditional Decay in the Absence of Data on the Active Fraction
Use of Batch Reactors to Determine Monod Kinetic Parameters for Single Substrates
Complex Substrate Model with Lysis:Regrowth Approach to Decay as Presented in Chapter 6 (International Water Association Activated Sludge Model No. 1)
Using Traditional Measurements to Approximate Wastewater Characteristics for Modeling
Key Points
Study Questions
References

Applications: Suspended Growth Reactors
Design and Evaluation of Suspended Growth Processes
Guiding Principles
Iterative Nature of Process Design and Evaluation
Basic Decisions during Design and Evaluation
Levels of Design and Evaluation
Key Points
Study Questions
References

Activated Sludge
Process Description
Factors Affecting Performance
Process Design
Process Operation
Key Points
Study Questions
References

Biological Nutrient Removal
Process Description
Process Design
Process Operation
Key Points
Study Questions
References

Aerobic Digestion
Process Description
Factors Affecting Performance
Process Design
Process Operation
Study Questions
References

Anaerobic Processes
Process Description
Factors Affecting Performance
Process Design
Key Points
Study Questions
References

Lagoons
Process Description
Factors Affecting Performance
Process Design
Process Operation
Key Points
Study Questions
References

Theory: Modeling of Ideal Attached Growth Reactors
Biofilm Modeling
Effects of Transport Limitations
Effects of Multiple Limiting Nutrients
Multispecies Biofilms
Multidimensional Mathematical Models of Biofilms
Key Points
Study Questions
References

Biofilm Reactors
Packed Towers
Rotating Disc Reactors
Key Points
Study Questions
References

Fluidized Bed Biological Reactors
Description of Fluidized Bed Biological Reactor
Fluidization
Modeling Fluidized Bed Biological Reactors
Theoretical Performance of Fluidized Bed Biological Reactors
Sizing a Fluidized Bed Biological Reactor
Key Points
Study Questions
References

Applications: Attached Growth Reactors
Trickling Filter
Process Description
Factors Affecting Performance
Process Design
Process Operation
Key Points
Study Questions
References

Rotating Biological Contactor
Process Description
Factors Affecting Performance
Process Design
Process Operation
Key Points
Study Questions
References

Submerged Attached Growth Bioreactors
Process Description
Factors Affecting Performance
Process Design
Process Operation
Key Points
Study Questions
References

Future Challenges
Fate and Effects of Xenobiotic Organic Chemicals
Biodegradation
Abiotic Removal Mechanisms
Relative Importance of Biotic and Abiotic Removal
Effects of Xenobiotic Organic Chemicals
Experience with Xenobiotic Organic Chemicals
Key Points
Study Questions
References

Designing Systems for Sustainability
Defining Sustainability
Technologies to Achieve Greater Water Resource Availability
Technologies to Achieve Lower Energy and Chemical Consumption
Technologies to Achieve Resource Recovery
Closing Comments
Study Questions
References

Appendix A: Acronyms
Appendix B: Symbols
Appendix C: Unit Conversions
Index