Uncontrollable wastewater parameters requiring process adaptation

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Table of contents

CHAPTER I INTRODUCTION
1.1. INTRODUCTION
1.2. FROM WASTEWATER TREATMENT PLANT (WWTP) TO WATER RESOURCE RECOVERY FACILITY (WRR)
1.3. KEY MICROBIAL PROCESSES FOR BIOLOGICAL NITROGEN REMOVAL (BNR)
1.4. MAINSTREAM PN/A: FROM ECOPHYSIOLOGY TO PROCESS TECHNOLOGY THROUGH MICROBIAL RESOURCE MANAGEMENT (MRM)
1.6. RESEARCH QUESTIONS AND THESIS OUTLINE
1.7. REFERENCES
CHAPTER II INSTANT COLD TOLERANCE IMPACTED BY ANAMMOX GENUS RATHER THAN BY AGGREGATE SIZE
ABSTRACT
2.1. INTRODUCTION
2.2 MATERIALS AND METHODS
2.2.1. Types of biomass
2.2.2. Determination of specific ammonium removal rate (SARR)
2.2.3. Size fractionation and disaggregation treatment
2.2.4. Determination of activation energy and temperature coefficient
2.2.5. Analytical methods
2.2.6. Microbial community analysis: 16S rRNA gene amplicon sequencing
2.3. RESULTS
2.3.1 Biomass composition and aggregate size
2.3.2. Effect of temperature on AnAOB activity
2.4. DISCUSSION
Role of aggregate size
2.5. CONCLUSIONS
2.6. ACKNOWLEDGEMENTS
2.7. CONFLICTS OF INTEREST
2.8. REFERENCES
CHAPTER III ENRICHMENT AND ADAPTATION YIELD HIGH ANAMMOX CONVERSION RATES UNDER LOW TEMPERATURES
3.1. INTRODUCTION
3.2. MATERIAL AND METHODS
3.2.1 Set-up and operation of the reactors
3.2.2 Biomass inoculum mix
3.2.3 Anammox activity and chemical analyses
3.2.4 Particle size distribution of the biomass aggregates
3.2.5 Microbial community analyses
3.3. RESULTS
3.3.1. Reactor performance
3.3.1.1. Start-up of the reactors
3.3.1.2. Activity evolution at constant temperature (30°C)
3.3.1.3. Activity evolution at decreasing temperature (30°C to 10°C)
3.2 BIOMASS AGGREGATE SIZE AND MICROBIAL COMMUNITY ANALYSIS
3.2.1 Biomass particle size distribution
3.2.2 Evolutions in the microbial community
3.4. DISCUSSION
3.4.1 Enrichment and adaptation favoring high specific activities
3.4.2 Potential AnAOB genus niche differentiation
3.4.3 Towards implementation of partial nitritation/anammox
3.5. CONCLUSIONS
3.6. ACKNOWLEDGEMENTS
3.7. REFERENCES
CHAPTER IV IMPACT OF SLOWLY BIODEGRADABLE ORGANIC CARBON ON THE COMPETITION BETWEEN ANAMMOX BACTERIA AND DENITRIFIERS AT DIFFERENT TEMPERATURES
IMPACT OF SLOWLY BIODEGRADABLE ORGANIC CARBON ON THE COMPETITION BETWEEN ANAMMOX BACTERIA AND DENITRIFIERS AT DIFFERENT TEMPERATURES.
4.1. INTRODUCTION
4.2 MATERIAL AND METHODS
4.2.1 Set-up and operation of the reactors
4.2.3 Anammox activity and chemical analyses
4.2.4 Microbial community analyses
4.3. RESULTS
4.3.1. Reactor performance
4.3.1.1. Activity evolution at high temperature (30°C)
4.3.1.3. COD removal
4.3.2 Biomass aggregate size and microbial community analysis
4.3.2.1 Transition from granular system to hybrid system with flocs
4.3.2.2 Evolutions in the microbial community
4.4. DISCUSSION
4.4.1 Competition between AnAOB and HB for nitrite during
4.4.2 Differential SRT favors retention of AnAOB over HB at low temperature
4.5. CONCLUSIONS
4.6. ACKNOWLEDGEMENTS
4.7. REFERENCES
CHAPTER V CONCLUSIONS
5.1. INTRODUCTION
5.2. MAJOR FINDINGS
5.3. IMPLICATIONS FOR MICROBIAL RESOURCE MANAGEMENT
5.4. DESIGN CHOICES FOR MAINSTREAM PN/A SYSTEMS
5.5. REFERENCES