Biological nutrient removal in compact biofilm systems : enhancing the knowledge on new processes for biological nutrient removal / Joao Paulo Bassin

Includes bibliographical references.

Chapter 1 Introduction and thesis outline 1 Chapter 2 Effect of different operational conditions on biofilm development, nitrification, and nitrifying microbial population in moving bed biofilm reactors 55 Chapter 3 Simultaneous nitrogen and phosphate removal in aerobic granular sludge reactors operated at different temperatures 87 Chapter 4 Unravelling the reasons for disproportion in the ratio of AOB and NOB in aerobic granular sludge 131 Chapter 5 Ammonium adsorption in aerobic granular sludge, activated sludge and anammox granules 155 Chapter 6 Effect of different salt adaptation strategies on the microbial diversity, activity, and settling of nitrifying sludge in sequencing batch reactors 187 Chapter 7 Effect of elevated salt concentrations on the aerobic granular sludge process: linking microbial activity with the microbial community structure 219 Chapter 8 Outlook

The content of this book consists of several important aspects regarding biological nutrient removal in compact systems such as moving-bed biofilm reactors (MBBR), aerobic granular sludge reactors (AGS) and sequencing batch reactors with suspended biomass. Different issues related to organic matter, nitrogen, and phosphorus removal are addressed in this book. The combination between molecular ecology techniques to study microbial diversity of engineered bioreactors and process conversions significantly enhanced the understanding of the reactor systems described Some of the topics discussed in the book are: Development of strategies to enhance the formation of nitrifying biofilms in MBBR systems; Complete characterization of the main process conversions taking place in AGS reactors operated at different temperatures, achieving simultaneous COD, nitrogen, and phosphorus removal; Investigation of the activity and diversity of nitrifying bacteria in aerobic granular sludge reactors; Detailed study on ammonium adsorption in aerobic granular sludge and its main causes; Investigation of the salt effect on the microbial diversity, activity, and settling of suspended nitrifying sludge.