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Catalogue for design and calculation of treatment facilities of urban sewage treatment plants
Chapter I Contents, Methods and Technologies of Urban Sewage Treatment 1

The first section of urban sewage quality and harm 1

Composition of sewage in a town 1

Second, the quality of urban sewage is 1

Harm of pollutants in sewage of Sanzhen 3

In the second quarter, urban sewage treatment methods 4

Physical therapy method 4

Chemical treatment method 5

Three biological treatment methods 5

Section III Level and Technology of Urban Sewage Treatment 7

The degree of sewage treatment in a town

Treatment method of secondary sludge 8

Process flow of Sanzhen Sewage Treatment Plant 10

Chapter II Water Distribution Wells and Metering Facilities of Regulating Pool 1 1

Section 1 Regulating Pool 1 1

Design overview 1 1

Two calculation examples 12

Example 2. 1 Calculate the mixing tank according to the hourly flow curve 12.

Example 2.2 Calculate the mixing tank 14 according to the cumulative flow curve.

Design and calculation of for SBR tank 14 mixing tank

Section II Water Distribution Well 16

Design overview 16

Two calculation examples 17

Example 2.4 Design calculation of weir water distribution well 17

Section III Measuring Facilities 17

Design overview 17

(1) type and structure 17

(ii) General provisions 19

Two calculation examples 20

Example 2.5 Design and Calculation of Babbitt Metal Measuring Tank 20

Example 2.6 Design calculation of measuring triangle weir 2 1

Chapter III Pretreatment Facilities 23

The first grid 23

Design overview 23

Two calculation examples 24

Example 3. 1 grid design calculation 24

Example 3.2 Selection and calculation of grid decontamination machine equipment 26

In the grit chamber 26 in the second quarter

Horizontal grit chamber 26

Design overview 26

(2) Calculation Example 26

Example 3.3 Design and calculation of advection grit chamber 26

Two vertical flow grit chambers 28

Design overview 28

(2) Calculation Example 29

Example 3.4 Design and calculation of vertical flow grit chamber 29

Three aeration grit chambers 30

Design overview 30

(II) Calculation Example 30

Example 3.5 Design and Calculation of Aerated grit chamber 30

Four-vortex grit chamber 3 1

(1) Design Overview 3 1

(II) Calculation Example 33

Example 3.6 Selection and calculation of vortex grit chamber 33

The fourth chapter 35 primary sedimentation tank

The first horizontal primary sedimentation tank 36

Design overview 36

Two calculation examples 38

Example 4. Design and Calculation of1advection primary sedimentation tank 38

The second vertical primary sedimentation tank 40

Design overview 40

Two calculation examples 40

Example 4.2 Design and Calculation of Vertical Primary Sedimentation Tank 40

The third radial primary sedimentation tank 42

Design overview 42

Two calculation examples 44

Example 4.3 Design and calculation of radial primary sedimentation tank 44

The fourth inclined plate (tube) primary sedimentation tank 45

Design overview 45

Two calculation examples 46

Example 4.4 Design and calculation of inclined plate (pipe) primary sedimentation tank 46

Chapter V Strengthening Primary Treatment Facilities 48

The first water hydrolysis (acidification) process 48

Design overview 48

Two calculation examples 49

Example 5. 1 design and calculation of hydrolysis (acidification) tank 49

Section II Chemical Flocculation Strengthening Process 50

Design overview 50

Two calculation examples 5 1

Example 5.2 Calculation of Chemical Flocculation Strengthening Facilities 5 1

Chapter VI Aerobic Activated Sludge Treatment Facilities 53

The first part of the traditional activated sludge process 53

Design overview 53

Two design examples 54

Example 6. 1 A plug aeration tank 54 was designed according to the sludge loading method.

Example 6.2 A plug aeration tank 60 was designed according to the sludge aging method.

Example 6.3 Design of Fully Mixed Aeration Tank 6 1

Example 6.4 Process Design and Calculation of Activated Sludge by Stage Aeration 64

Example 6.5 Process Design and Calculation of Activated Sludge Adsorption Regeneration 67

Section II Nitrogen and Phosphorus Removal by Activated Sludge Process 68

A 1/O biological denitrification process 69

(a) process characteristics 69

(2) Design parameters and equipment 69

(3) Calculation Example 70

Example 6.6A 1/O biological nitrogen removal process design calculation 70

A2/O biological phosphorus removal process 76

(a) process characteristics 76

(2) Design parameters and equipment 77

(3) Calculation Example 77

Example 6.7A2/O biological phosphorus removal process design calculation 77

Three-stage A2/O biological nitrogen and phosphorus removal process 79

(a) process characteristics 79

(2) Design parameters and equipment 80

(3) Calculation Example 80

Example 6.8A2/O biological nitrogen and phosphorus removal process design calculation 80

4 Improved A2/O biological nitrogen and phosphorus removal process 83

(a) process characteristics 83

(2) Design parameters and equipment 83

(3) Calculation Example 83

Example 6.9 Design of Improved A2/O Biological Nitrogen and Phosphorus Removal Process

Calculation 83

Section 3 adsorption. Biodegradation method of activated sludge 87

Process characteristics 87

Design parameters and equipment 88

Three calculation examples 88

Example 6. 10AB process design calculation 88

The fourth quarter oxidation ditch 92

92 overview

Two. Technical features 93

Types and basic forms of oxidation ditch 93

Siobel oxidation ditch 93

(a) technical features 93

(2) Design parameters and equipment 94

(3) Calculation Example 95

Example 6. 1 1 Aubert oxidation ditch process design calculation 95

Five Pasville oxidation ditch 100

(a) process characteristics 100

(2) Main design parameters and equipment 100

(3) Calculation example 100

Example 6. 12 process design calculation Pasville oxidation ditch 100

Six oxidation ditches working alternately 104

(1) Process characteristics 104

(2) Design parameters and equipment 104

(3) Calculation example 104

Example 6. 13 process design calculation of three-ditch oxidation ditch 104

Oxidation ditch in Chikarussel 108

(1) Process characteristics 108

(2) Design parameters 109

(3) Calculation example 109

Example 6. 14 carrousel oxidation ditch 109 process design calculation

Eight improved carrousel oxidation ditch 1 12

(1) Process characteristics 1 12

(2) Design parameter 1 13

(3) Calculation example 1 13

Example 6. 15 process design calculation of improved carrousel oxidation ditch 1 13

Section 5 Batch Activated Sludge Process 1 17

Design overview 1 17

Two calculation examples 1 18

Example 6. 16 classic SBR process design 1 18

Example 6. 17CASS process design calculation 120

Section VI Design of Activated Sludge Mathematical Model Bioreactor 122

Brief Introduction of Activated Sludge Mathematical Model (ASM 1) 123

Function model of activated sludge 127

Iii. the design steps are the same as ASM 1 127.

Four calculation examples 128

Example 6. 18 fully mixed aeration tank 128 is designed with ASM 1.

Example 6. 19 ASM 1 design stage aeration tank 134 was adopted.

Example 6.20 Calculation of plug-flow aeration tank 137 with ASM 1

Example 6.2 1 Calculation of adsorption and regeneration process with ASM 1 139.

Example 6.22 Calculation of A/O nitrogen removal process with ASM 1 14 1

Section VII Membrane Bioreactor 143

Design overview 143

Two calculation examples 145

Example 6.23 Design and Calculation of Submerged MBR 145

Section VIII Composite Bioreactor 148

Design overview 148

Two calculation examples 149

Example 6.24 Calculation of Composite Bioreactor 149

Chapter VII Biofilm Treatment Facilities 15 1

Section 1 Biological Filter 15 1

Filter type and parameters 15 1

Two common biofilters 15 1

(1) General provisions 15 1

(2) Calculation example 15 1

Example 7. 1 Calculation of common biofilter by volume loading method 15 1.

Example 7.2 Calculation of common biofilter 152 by dynamic formula method.

Three high-load biofilters 153

(1) General Conditions 153

(2) Calculation example 153

Example 7.3 Calculation of High Load Biofilter 153 by Area Load Method

Example 7.4 Calculation of High Load Biofilter 154 by Volume Load Method

Four-tower biofilter 155

(1) General Conditions 155

(2) Calculation example 155

Example 7.5 Calculation of Tower Biofilter 155

Five-stage biological filter oxygen demand 156

Example 7.6 Calculation of Biological Filter 156 Oxygen Demand

6 biological filter water distribution system 157

(1) General Conditions 157

(2) Calculation example 157

Example 7.7 Calculation of Fixed Nozzle Water Distributor 157

Example 7.8 Calculation of Rotating Water Distributor 158

Drainage and ventilation system of seven-stage biological filter 160

Sludge volume of eight-stage biological filter 160

Example 7.9 Calculation of Sludge Volume in High-load Biofilter 16 1

The second quarter biological turntable 162

Design overview 162

Two calculation examples 163

Example 7. Calculation of10 biological turntable 163

Section 3 Biological Contact Oxidation Method 165

Design overview 165

Two calculation examples 166

Example 7. 1 1 calculation of secondary biological contact oxidation tank 166

Example 7. Calculation of12 contact sedimentation tank (two-stage type) 168

Example 7. 13 Calculation of Primary Biological Contact Oxidation Tank 170

The fourth quarter biological aerated filter 17 1

Design overview 17 1

Two calculation examples 172

Example 7. 14DC BAF calculation 172

Example 7. 15N BAF calculation 175

Example 7. Calculation of16 DN separated biological aerated filter 176

Example 7. Calculation of17 combined DN biological aerated filter 178

Section 5 Biological Fluidized Bed 179

Design overview 179

Two calculation examples 180

Example 7. 18 Volume calculation of aerobic three-phase fluidized bed 180

Chapter VIII Natural Purification Facilities 18 1

Section 1 Stabilization Pond 18 1

A stable pond type and selection 18 1

Anaerobic pond 182

(1) design parameters 182

(2) Calculation example 182

Example 8. Calculation of Ordinary Aerobic Pool 182 by1area load method

Example 8.2 Calculation of common aerobic tank 183 by Oswald method.

Example 8.3 Ordinary aerobic tank 184 is calculated by Wehner. Weah Mufa.

Three religions and nine streams pond 185

(1) design parameters 185

(2) Calculation example 186

Example 8.4 Calculation of Aerobic Pool 186 by Area Load Method

Example 8.5 Calculation of Aerobic Pool 187 by Curve Graphic Method

Si anaerobic tank 188

(1) design parameters 188

(2) Calculation example 188

Example 8.6 Anaerobic pool calculation 188

Wu aerated pond 190

(1) design parameters 190

(2) Calculation example 190

Example 8.7 Calculation of Series 190 Isovolumetric Aerobic aerated pond

Example 8.8 Calculate the aerobic aerated pond 19 1 with the removal rate.

The sludge volume of Liupingtang is 192.

Example 8.9 Calculation of Sludge Volume in Stabilized Pond (1) 192

Example 8. Calculation of Sludge Volume in10 Stabilized Pond (2) 192

Removal of Nitrogen and Phosphorus by qi Stabilization Pond 193

Other relevant design calculations of the eighth stabilization pond 193

(1) design and calculation of water inlet and outlet 193

Example 8. 1 1 stabilization pond 193 design and calculation of import and export

(2) Length-width ratio design of stabilization pond 195

(3) Design of diversion wall 195

(4) The comprehensive work and treatment efficiency of the stabilization pond is 196.

Section 2 Land Treatment 197

Types and parameters of land treatment 197

(1) Applicable conditions 197

(II) Design parameters and treatment effect 197

Two slow infiltration systems 198

(1) design conditions 198

(2) Calculation example 198

Example 8. 12 Calculation of Slow Permeability System 198

Three rapid infiltration systems 20 1

(1) design condition 20 1

(2) Calculation Example 20 1

Example 8. Calculation of13 Rapid Infiltration System 20 1

The four-sided water injection system 202

(1) Suitable conditions and design parameters 202

(2) Calculation Example 203

Example 8. Calculation of14 Surface Overflow System 203

V. Wetland Treatment System 204

(1) design conditions

(2) Calculation Example 204

Example 8. 15 calculation of surface flow wetland treatment 204

Example 8. 16 calculation of subsurface flow wetland treatment 205

6 Design of water inlet and outlet for land treatment 206

(a) Design of water intake for land treatment 206

(2) Design of land treatment wastewater 208

Chapter 9 Secondary sedimentation tank 2 10

Section 1 Characteristics and design points of secondary sedimentation tank 2 10

I. Difference between the second sedimentation tank and the first sedimentation tank 2 10

Choose 2 10 for the double pool type.

Three design points 2 1 1 2-stage advection secondary sedimentation tank 2 13

Design overview 2 13

Two calculation examples 2 15

Example 9. 1 Calculate the horizontal secondary sedimentation tank 2 15 according to the sedimentation time and horizontal velocity.

Example 9.2 Calculation of inlet and outlet system of advection sedimentation tank 2 16

Example 9.3 According to the settlement test, the area of the secondary sedimentation tank is 2 17.

Section III Radial Secondary Sedimentation Tank 2 18

Design overview 2 18

Two calculation examples 220

Example 9.4 Design and Calculation of Ordinary Radial Secondary Sedimentation Tank 220

Example 9.5 Design and calculation of radial secondary sedimentation tank with centripetal flow 223

The fourth inclined plate (tube) secondary sedimentation tank 224

Design overview 225

Two calculation examples 225

Example 9.6 Design and calculation of inclined tube secondary sedimentation tank 225

Chapter X Disinfection Facilities 227

The first section liquid chlorine disinfection 227

Design overview 227

Two calculation examples 229

Example 10. 1 design and calculation of liquid chlorine disinfection process 229

In the second quarter chlorine dioxide disinfection 230

Design overview 230

Two calculation examples 230

Example 10.2 chlorine dioxide disinfection design calculation 230

Section III Ozone Disinfection 23 1

Design overview 23 1

Two calculation examples 234

Example 10.3 ozone disinfection process calculation 234

The fourth quarter ultraviolet disinfection 234

Design overview 234

Two calculation examples 236

Example 10.4 ultraviolet disinfection process calculation 236

Section 5 Contact Pool 237

Design overview 237

Two calculation examples 238

Example 10.5 contact unit process calculation 238

Chapter 11 Sludge Treatment and Deodorization Facilities 239

The first section sludge treatment target and process flow 239

In the second quarter sludge production calculation 240

Design overview 240

Two calculation examples 242

Example 1 1. 1 Calculation of sludge moisture content 242

Example 1 1.2 Calculation of sludge relative density 242

Example 1 1.3 Calculation of Digested Sludge Volume 242

In the third quarter sludge pipeline transportation 243

Design overview 243

Two calculation examples 245

Example 1 1.4 Calculation of sludge conveying pipeline 245

The fourth quarter sludge concentration 245

Design overview 245

Two calculation examples 248

Example 1 1.5 Design continuous gravity concentration tank 248 by experimental method.

Example 1 1.6 Design of continuous gravity concentration tank 250 for sludge solid flux.

Example 1 1.7 design and calculation of air flotation concentrator 25 1

Section 5 Anaerobic Digestion of Sludge 252

Design overview 253

Two calculation examples 255

Example 1 1.8 Digester Volume Calculation 255

Example 1 1.9 Thermal Balance Calculation of Moderate Temperature Sludge Digestion System 257

Example 1 1. 10 Calculation of sludge gas circulation stirring in digester 26 1

Example11.11Design of biogas collection and storage system in sludge digester 262

Section 6 Aerobic Digestion of Sludge 263

Design overview 263

(a) the basic principles and characteristics of 263

(2) Design Points 264

Two calculation examples 265

Example 1 1. 12 sludge aerobic digester and calculation of air demand 265

Section 7 Sludge Drying and Dehydration 267

Design overview 267

Two calculation examples 268

Example: 1 1. 13 Design and calculation of sludge drying field1666666666666

Example 1 1. 14 design and calculation of sludge vacuum drum filter dehydrator 269

Example 1 1. 15 design and calculation of sludge frame filter press 270

Example 1 1. 16 design and calculation of sludge dewatering for roller belt filter press 27 1

Section 8 Sludge Drying and Incineration 272

Design overview 272

Two calculation examples 275

Example 1 1. 17 Design and calculation of sludge drying and incineration 275

Section 9 Deodorization Facilities of Sewage Treatment Plant 277

Design overview 277

Two. Design points 279

Three calculation examples 280

Example 1 1. 18 deodorization calculation of 280 in water intake pump house and coarse grid workshop

Example 1 1. 19 calculation of high-energy ion deodorization in primary sedimentation tank 280

Chapter XII Process Facilities for Tertiary Treatment of Urban Sewage

Section 1 Purpose, Contents and Methods of Three-level Governance 282

The purpose of three-stage treatment 282

Contents of two-stage or three-stage processing 282

Three-stage therapy 283

Technology 283

(II) Method 283

The second high-density sedimentation tank 284

I. Structure and characteristics 284

(1) process structure 284

(II) Technical Features 285

(3) Performance characteristics 286

Two key parts design 286

Three calculation examples 287

Example 12. 1 design and calculation of high-density sedimentation tank 287

Section III Filtering Facilities 29 1

V filter 29 1

(1) Design Overview 29 1

(2) Calculation Example 293

Example 12.2V filter design calculation 293

The double fluidized bed filter 297

Design overview 297

(2) Calculation Example 299

Example 12.3 design and calculation of fluidized bed filter 299

Three-sided filter 30 1

(1) design overview 30 1

(2) Calculation Example 303

Example 12.4 selection calculation of rotating filter 303

Section 4 Denitrification and Chemical Phosphorus Removal Facilities 304

Denitrification equipment 304

Chemical phosphorus removal facility 305

(a) design overview 305

(2) Calculation Example 305

Example 12.5 estimation of the dosage of chemical phosphorus remover 305

Chapter 13 Vertical Design Calculation of Sewage Treatment Plant 307

Section 1 Purpose, Significance and Requirements of Vertical Design 307

I. Purpose and significance 307

Two. General provisions 307

In the second quarter, the vertical design process calculation 307

Example 13. 1 Vertical Layout Process of Sewage Treatment Plant

Calculation 307

Appendix 328

Appendix 1 Pollutant Discharge Standard for Urban Sewage Treatment Plants (GB 189 18—2002)328

Appendix II Comprehensive Wastewater Discharge Standard (GB 8978- 1996) (Abstract) 334

Appendix III Water Quality Standard for Sewage Discharged into Urban Sewers (GB 343-2010) (Abstract) 34 1

Appendix IV Monthly Visible Light Radiation at Sea Level at Different Latitudes 342

Appendix V Sunshine Hours and Sunshine Percentage of Major Cities in China 343

Appendix VI Atmospheric Pressure at Different Altitudes 345

Appendix VII Stoichiometric and Kinetic Parameters of Common Biological Reactions in Municipal Sewage Treatment 345

Appendix VIII Thermal indexes of common building materials 346

Appendix ix Solubility (Saturation) of Oxygen in Distilled Water 346

Reference 347