tháng 3 25, 2016
TABLE OF CONTENTS
PREFACE
TABLE OF CONTENTS
LIST OF FIGURES
SECTION
I. INTRODUCTION
II. FUNDAMENTALS
III. MICROORGANISMS
IV. ACTIVATED SLUDGE PROCESS MODIFICATIONS
V. SOLIDS ACCUMULATION
VI. COMPLETE MIX ACTIVATED SLUDGE EQUATIONS
VII. SOLIDS SEPARATION
VIII. SOLIDS FLUX THEORY
IX. MASS BALANCE
X. NITRIFICATION
XI. PROCESS CONTROL – WHAT CAN BE CONTROLLED?
XII. AERATION RATE CONTROL
XIII. RETURN SLUDGE RATE CONTROL
XIV. WASTE ACTIVATED SLUDGE CONTROL
XV. PROCESS MONITORING
XVI. TROUBLESHOOTING
XVII. GLOSSARY
APPENDIXES
A. LABORATORY SUMMARY
B. DESIGN AND OPERATING PARAMETERS
C. THE MICROBIOLOGY OF ACTIVATED SLUDGE
D. ACTIVATED SLUDGE MICROBIOLOGY PROBLEMS AND THEIR CONTROL
E. NUTRIENT DEFICIENCY CALCULATIONS
F. RETURN CHLORINATION (BULKING) CALCUALTIONS
G. SETTLEABILITY TEST PROCEDURES H. OUR TEST PROCEDURES
I. MICROSCOPIC TEST PROCEDURES
J. ACTIVATED SLUDGE OBSERVATIONS
K. ORP RANGES
L. CORE-TAKER PROCEDURES
M. MCRT RELATIONSHIP TO F/M
N. FINAL CLARIFIER SOLIDS FLUX
O. TROUBLESHOOTING CHARTS
P. TROUBLESHOOTING ACTIVATED SLDUGE PROCESSES
Q. NITRIFICATION SRT CALCULATIONS
R. PROCESS CONTROL CALCULATIONS
S. WET WEATHER OPERATING PLAN
T. SAMPLE MANUAL OF OPERATIONS
U. MICROBIOLOGY FOR WASTEWATER TREATMENT PLANT OPERATORS
V. ALKALINIATY AS A PROCESS CONTROL INDICATOR
LIST OF FIGURES
P-1 The BOD curve
P-2 Classification and size range of particles found in wastewater
1.01 Bacteria cell metabolism
2.01 Synthesis and oxidation of organic matter
2.02 Energy conversion
2.03 SVI versus sludge age
2.04 Sludge setteability vs. organic loading
2.05 Growth curve
4.01 Basic activated sludge process diagram
4.02 Mixing regime and flow variations
5.01 Derivation of F/M & MCRT Relationship
5.02 Organic load vs. solids production
5.03 Sludge age vs. solids production
6.01 Mixed Liquor Suspended Solids vs. sludge age
7.01 Solids concentration vs. settling type
7.02 Zone settling rate
8.01 Flux resulting from gravitational settling
8.02 State point analysis
8.03 Variations in influent flow
8.04 Effects of recycle rate changes
8.05 Effects of an increase in MLSS
8.06 Effects of sludge settling characteristics
10.01 Wastewater nitrogen cycle
11.01 Relationship between physical limitations and operations
11.02 Diagram of typical activated sludge plant
11.03 Relationship of proper environment and process control
13.01 Three types of sludge settleability
15.01 Process control test location
16.01 Diagram of the troubleshooting process
PREFACE
TABLE OF CONTENTS
LIST OF FIGURES
SECTION
I. INTRODUCTION
II. FUNDAMENTALS
III. MICROORGANISMS
IV. ACTIVATED SLUDGE PROCESS MODIFICATIONS
V. SOLIDS ACCUMULATION
VI. COMPLETE MIX ACTIVATED SLUDGE EQUATIONS
VII. SOLIDS SEPARATION
VIII. SOLIDS FLUX THEORY
IX. MASS BALANCE
X. NITRIFICATION
XI. PROCESS CONTROL – WHAT CAN BE CONTROLLED?
XII. AERATION RATE CONTROL
XIII. RETURN SLUDGE RATE CONTROL
XIV. WASTE ACTIVATED SLUDGE CONTROL
XV. PROCESS MONITORING
XVI. TROUBLESHOOTING
XVII. GLOSSARY
APPENDIXES
A. LABORATORY SUMMARY
B. DESIGN AND OPERATING PARAMETERS
C. THE MICROBIOLOGY OF ACTIVATED SLUDGE
D. ACTIVATED SLUDGE MICROBIOLOGY PROBLEMS AND THEIR CONTROL
E. NUTRIENT DEFICIENCY CALCULATIONS
F. RETURN CHLORINATION (BULKING) CALCUALTIONS
G. SETTLEABILITY TEST PROCEDURES H. OUR TEST PROCEDURES
I. MICROSCOPIC TEST PROCEDURES
J. ACTIVATED SLUDGE OBSERVATIONS
K. ORP RANGES
L. CORE-TAKER PROCEDURES
M. MCRT RELATIONSHIP TO F/M
N. FINAL CLARIFIER SOLIDS FLUX
O. TROUBLESHOOTING CHARTS
P. TROUBLESHOOTING ACTIVATED SLDUGE PROCESSES
Q. NITRIFICATION SRT CALCULATIONS
R. PROCESS CONTROL CALCULATIONS
S. WET WEATHER OPERATING PLAN
T. SAMPLE MANUAL OF OPERATIONS
U. MICROBIOLOGY FOR WASTEWATER TREATMENT PLANT OPERATORS
V. ALKALINIATY AS A PROCESS CONTROL INDICATOR
LIST OF FIGURES
P-1 The BOD curve
P-2 Classification and size range of particles found in wastewater
1.01 Bacteria cell metabolism
2.01 Synthesis and oxidation of organic matter
2.02 Energy conversion
2.03 SVI versus sludge age
2.04 Sludge setteability vs. organic loading
2.05 Growth curve
4.01 Basic activated sludge process diagram
4.02 Mixing regime and flow variations
5.01 Derivation of F/M & MCRT Relationship
5.02 Organic load vs. solids production
5.03 Sludge age vs. solids production
6.01 Mixed Liquor Suspended Solids vs. sludge age
7.01 Solids concentration vs. settling type
7.02 Zone settling rate
8.01 Flux resulting from gravitational settling
8.02 State point analysis
8.03 Variations in influent flow
8.04 Effects of recycle rate changes
8.05 Effects of an increase in MLSS
8.06 Effects of sludge settling characteristics
10.01 Wastewater nitrogen cycle
11.01 Relationship between physical limitations and operations
11.02 Diagram of typical activated sludge plant
11.03 Relationship of proper environment and process control
13.01 Three types of sludge settleability
15.01 Process control test location
16.01 Diagram of the troubleshooting process
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| Activated sludge process control |
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