Activated Sludge Process Control Training Manual

Preface  

Acknowledgements  

1.  Process Overview        

• Learning Objectives  
• Introduction
• System Components
• Microbiology
• Process Goals
• Activated Sludge Process Modes
• Chapter Quiz                                                                                                  

2.  Equipment and Facilities                                                                                              

• Learning Objectives
• Biological Reactors                                                                                             
• Oxygen-Transfer Systems  
• Air/Oxygen Supply Systems     
• Clarifiers                                                                                                         
• Return Activated Sludge Systems                                                                     
• Waste Activated Sludge Systems
• Chemical Feed Systems                                                                                             
• Relationship to Other Processes                                                                    
• Chapter Quiz                                                                                                                

3.  Safety Considerations

• Learning Objectives     
•  Introduction         
• Safety Overview       
•  Physical Hazards     
• Chemical Hazards                                                                                                           
• High-Purity Oxygen System Hazards                                                                                   
• Biological Hazards                                                                                                           
• Noise Hazards                                                                                                                       
• Electrical and Mechanical Hazards                                                                                   
• Confined Spaces Hazards                                                                                               
• Chapter Quiz

4.  Sampling, Analysis, and Data Management

• Learning Objectives
• Introduction                                                                                                      
• Purpose                                                                                                                       
• Types of Sampling                                                                                                         
• Sample Analysis                                                                                             
• Sampling and Analysis Plan                                                                                      
• Building a Database                                                                                                         
• Chapter Quiz                                                                                                             

5.  Process Control

• Learning Objectives                                                                                            
• Introduction
• Influent Characteristics                                                                                     
• Flow Management
• Dissolved Oxygen Control
• Solids Inventory and Control                                                                                     
• Secondary Clarifier Control                                                                                     
• Microorganism Characteristics                                                                         
• Nitrification                                                                                                                   
• Startup Considerations                                                                                     
• Chapter Quiz\

 6.  Troubleshooting

• Learning Objectives                                                                                            
• Introduction                                                                                                      
• Methodology                                                                                                               
• Nonuniform Mixing                                                                                      
• Foaming                                                                                                         
• Introduction to Solids Separation Issues                                                  
• Solids Washout                                                                                              
• Introduction to Bulking Problems                                                                     
• Filamentous Bulking Caused by pH Imbalance
• Filamentous Bulking Caused by Nutrient Deficiencies
• Temporary Bulking Remedies                                                                                
• Rising Sludge                                                                                                 
• Ashing                                                                                                             
• Pinpoint and Straggler Floc                                                                           
• Cloudy Secondary Effluent                                                                        
• Special Considerations for Nitrifying Systems                                             
• Chapter Quiz                                                                                                    

References