文摘
英文文摘
论文说明：ABBREVIATIONS AND SYMBOLS
声明
ACKNOWLEDGEMENTS
CHAPTER 1 INTRODUCTION AND WASTEWATER TREATMENT PROCESS DETERMINATION
1.0 INTRODUCTION
1.1 LITERATURE REVIEW
1.1.1 Wastewater treatment overview
1.1.2 Biological treatment overview
1.2 DOMESTIC SEWAGE TREATMENT PROCESS
1.2.1 Treatment process determination
1.2.2 Flow sheet determination
1.2.3 Design limits
1.3 FUNDAMENTALS OF SEWAGE TREATMENT
1.3.1 Biological nutrients removal processes
1.3.2 Development of controlled biological nutrient removal
1.3.3 Commonly applied BNR process configurations
1.3.4 Nitrogen Removal
1.3.5 Phosphorus Removal
1.3.6 Design standards
1.4 FLOW SHEET EXPLATIONS
1.4.1 Biological selector
1.4.2 Description of selected domestic wastewater facility
CHAPTER 2 DESIGN AND TECHNOLOGICAL CALCULATIONS
2.1 Operating and design parameters
2.1.1 Solids retention time for denitrification, SRTDN
2.1.2 Yield coefficient for denitrification
2.1.3 Design solids retention time for aerobic cell growth, SRTaerobic
2.1.4 Design cell yield caused by BOD5 removal
2.1.5 Design cell yield caused by nitrification (Yobs, N)
2.1.6 Design cell yield caused by cell debris production
2.1.7 Soluble BOD5 in the effluent
2.2 Preliminary and primary treatments
2.2.1 Design of bar rack (coarse screen)
2.2.2 Design of grit chamber
2.2.3 Equalization tank
2.2.4 Design of primary sedimentation tank
2.3 Material mass balance analysis
2.3.1 First iteration
2.3.2 Second iteration
2.4 pH control and alkalinity needed
2.5 Oxygen requirements
2.6 BNR system design: sizing and configuration
2.6.1 Anaerobic tank
2.6.2 Anoxic bioreactor
2.6.3 Aerobic bioreactor
2.6.4 CAAA reactor configuration
2.7 Solids separation facility design
2.7.1 Surface area of Secondary Clarifier
2.7.2 Depth of Secondary Clarifier
2.7.3 Detention time
2.8 Disinfection facility design
2.8.1 Disinfection effectiveness
2.8.2 Required chlorine dioxide dosage for disinfection
2.8.3 Contact Basin
2.8.4 Design contact basin based on dispersion
2.9 Plant layout
CHAPTER 3 EQUIPMENTS SELECTION AND MATERIAL CONSUMPTION
3.1 EQUIPMENTS TECHNOLOGICAL CALCULATIONS AND SELECTION
3.1.1 Bar rack (coarse screen)
3.1.2 Aerated grit chamber equipment
3.1.3 Equalization effluent pump
3.1.4 Primary sludge pump
3.1.5 Primary sedimentation tank equipment
3.1.6 Sludge collection system and skimmer
3.1.7 Primary effluent pump
3.1.8 Waste activated sludge system
3.1.9 Internal recycle pump
3.1.10 Secondary effluent pump
3.1.11 Return sludge pumps
3.1.12 Mixer power requirement for anaerobic and anoxic tanks ones
3.1.13 Design capacity of air supply system
3.1.14 Design capacity diffused aeration system and Blower sizing
3.2 EQUIPMENT LIST
3.3 MATERIAL CONSUMPTION AND QUANTITY
CHAPTER 4 COST ESTIMATION PROCESS SAFETY EVALUATION AND CONCLUSION
4.1 WORKSHOP AND COST ESTIMATION
4.1.1 Preliminary treatment (coarse screen with grit removal)
4.1.2 Primary sedimentation with sludge pump
4.1.3 Conventional activated sludge with diffused air
4.1.4 Final clarifier
4.1.5 Disinfection
4.1.6 Miscellaneous structures
4.1.7 Support personnel
4.2 ENVIRONMENTAL AND FIRE PROTECTION, PROCESS SAFETY AND HEALTH
4.2.1 Failure-Mode Effect Analysis
4.2.2 Process hazard and operability (HAZOP)
4.3 CONCLUSION AND DISCUSSION
DISCUSSION
REFERENCES
APPENDICES
