Cargando…
Operation of extended aeration package plants /
| Clasificación: | Libro Electrónico |
|---|---|
| Autor Corporativo: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Alexandria, VA :
Water Environment Federation,
2004.
|
| Edición: | Second edition. |
| Colección: | Manual of practice. Operations and maintenance ;
no. OM-7. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Machine derived contents note: Contents
- Chapter Page
- Preface
- 1 Introduction
- 2 Installation
- 3 Flow Equalization
- General Purpose of Flow Equalization
- Wastewater Characteristics
- High-Strength Wastewater
- Biochemical Oxygen Demand
- Chemical Oxygen Demand
- Total Suspended Solids
- Additives
- Toxicity Effects on Treatment Plants
- Operation of Equalization Tank
- Air Lift Pump
- Flow Proportioning Chamber
- Equalization Tank Overflow
- Permit Requirements
- General Maintenance
- Summary
- References
- 4 Protective Devices
- Introduction
- Bar Screens
- Comminutor
- Trash Trap
- Grease Trap
- Electrical Protection
- 5 The Aeration Chamber
- Introduction
- The Activated Sludge System
- Aeration Tank
- Sizing
- Configuration
- Aerating and Mixing Capability
- Diffused Air
- Blowers and Motors
- Mechanical Surface Aeration
- Time Clocks
- Return Activated Sludge Capability
- Skimmer Line
- Froth Spray System
- Theory of Activated Sludge
- Activated Sludge Formation
- Transfer
- Conversion
- Flocculation
- Food: Five-Day Biochemical Oxygen Demand
- Bacteria
- Regulation of the Bacterium
- Nutrients and Micronutrients
- Bacterial Growth
- Activated Sludge Growth Curve
- Activated Sludge Process Control
- Dissolved Oxygen Level in the Aeration Tank
- Return Activated Sludge Rate
- Waste Activated Sludge
- Aeration Period
- Incoming Load
- Moving Averages
- Sludge Inventory
- Food-to-Microorganism Ratio
- Sludge Age or Cell Residence Time
- Sludge Volume Index
- Specific Oxygen Uptake Rate
- Microscopic Examination of Activated Sludge
- Filamentous Bacteria
- Aeration Tank Foam
- Basic Approach to Package Plant Microlife
- Nutrient Control
- Nitrification
- Nitrification Process Theory
- Denitrification
- Summary
- References
- 6 Clarifiers
- General Discussion
- Types of Clarifiers
- Hoppered
- Rectangular
- Circular
- Design Criteria
- Surface Settling Rate
- Weir Overflow Rate
- Hydraulic Detention Time
- Solids Loading Rate
- Inlet and Outlet Structures
- Clarifier Operation
- Return Sludge Rates
- Skimming and Scum Removal
- Froth Sprays
- Water Temperature
- Troubleshooting
- Floating Solids
- Solids Overflow
- Rising Sludge
- Fouling of Effluent Weirs
- Plugging of Sludge Withdrawal Lines
- 7 Sludge Wasting
- Overview
- Sludge Wasting
- Sludge Disposal
- 8 Disinfection
- General
- Chlorination
- Chlorinators
- Gas
- Liquid
- Solid Tablet or Pellet
- Control Systems
- Dechlorination
- Electrolytic Generation of Hypochlorite
- Ultraviolet Disinfection
- 9 Operating Tests and Routine Maintenance
- Introduction
- Settleability
- Settleability Test
- Dilution Test
- Settleometer Test
- pH
- Color
- Dissolved Oxygen
- Dissolved Oxygen Meter
- Drop Titration Colorimetric Test
- Dissolved Oxygen Ampoules
- Flow
- Residual Chlorine
- Typical Operator Visit
- Comminutor
- Bar Screen
- Equalization Tank
- Aeration Chamber
- Clarifier
- Chlorine Contact Tank
- Mechanical Equipment
- 10 Advanced Unit Processes
- Intermittent Sand Filters
- Microstrainers
- Rapid Sand Filters
- Fundamentals
- Constant Flow Through the Filter
- Sedimentation Ahead of the Filter
- Single or Multiple Filters
- Backwashing Facilities
- Backwash-to-Waste Storage
- Clearwell
- Bypass
- Typical Operation
- Routine Operation
- Polishing Pond
- Phosphorus Removal
- Postaeration
- Nitrogen Removal
- References
- 11 Corrosion Control and Climate Conditions
- Introduction
- Chemical Attack
- Electrochemical Corrosion
- Protective Coating Systems
- Buildings
- Piping
- Concrete
- Steel
- Galvanized Iron/Steel
- Aluminum
- Magnesium Anodes
- Climatic Conditions
- Pipe and Equipment Insulation
- Materials
- Installation
- Winter Proofing
- Safety
- Summary
- Definitions and Abbreviations
- References
- 12 Regulatory Requirements
- Introduction
- National Pollutant Discharge Elimination System Permits
- Effluent Limitations
- Sampling and Analysis
- Introduction of Pollutants and Toxicity
- Biosolids
- Operator Certification
- Monitoring and Reporting
- References
- 13 Occupational Health and Safety
- Introduction
- Occupational Safety and Health Regulations
- Federal Occupational Safety and Health Administration
- State Plan Occupational Safety and Health Administration Programs
- Private and Public Sectors Regulatory Compliance
- Occupational Accidents
- Wastewater Treatment Plant Worker Accident Experience
- Worker Accident Experience
- Occupational Safety and Health Administration Recordkeeping
- Requirements
- Workers' Compensation
- Overview
- Costs Associated with Workplace Accidents
- Exposure Identification and Control Measures
- Identification of Potential Accident Hazards
- Evaluation of Hazard
- Control of Accident Hazard
- Elimination of Hazard
- Engineering Controls
- Administrative Controls and Training
- Personal Protective Equipment
- Health and Safety Program Elements
- Statement of Company Policy
- Responsibilities
- Employer
- Management
- Employees
- Regulatory Requirements
- Recordkeeping
- Site Inspections and Audits
- Identified Accident Hazards, Controls, and Regulatory Requirements
- Hazard Communication
- Material Safety Data Sheets
- Labeling and Hazard Warning
- Information and Training
- Permit-Required Confined Space Entry
- Definitions
- Identification of Permit-Required Confined Spaces
- Entering Permit-Required Confined Spaces
- Training
- Walking/Working Surfaces and Falls
- Fall Prevention
- Fall Protection
- Lockout/Tagout
- Control of Hazardous Energy
- Identification of Energy Sources
- Lockout/Tagout Procedures
- Emergencies
- Emergency Action Plan
- Emergency Response
- Gaseous Chlorine and Sulfur Dioxide
- Control Measures
- Handling Procedures
- Emergencies
- Electrical Hazards and Safety
- Machine Guarding
- Biohazards
- Summary
- References
- Suggested Readings.